Category Archives: Reviews

Exotic shortwave DX copied in Rio Capim, Northern Brazil

The beautiful Capim River in a land of Jaguars, Tarantulas and occasionally, wonderful shortwave DX

Hi there, I returned from my third trip to the Rio Capim area of Pará, Northern Brazil about 5 weeks ago, having been out there for exactly a month. Now, whilst this was strictly a business trip I always make time to tune around the bands, mostly shortwave, in the hope of copying some interesting DX. My previous two trips were reasonably successful; however, I didn’t really hear anything new – just lots of Tropical Band – and tropical stations with much greater signal strength and clarity. Part of the problem is one of which most of us suffer from – the dreaded local QRM. Even in the depths of the rain forest noise is present from building electrical systems (particularly lighting) and other equipment. In my first attempt to escape the noise on this trip I ventured out of my accommodation building (basically a very large hut) to the wire fence that separates us and the larger fauna (although having said that, the monkeys and everything else that lives in the area appears to have no difficulty scaling a 6 foot fence – funny that! ). Anyway, ultimately, you’ve really got to want to hear something special quite badly to venture out. I suppose it could be the definition of hard-core DX! I tried this only once because as I was copying a very nice signal from Radio Guinea on 9650 kHz, I found myself about 2 feet from a Tarantula Hawk Wasp dispatching a very large spider (check out the very brief video on my YouTube channel). That was me done for alfresco DXing in the jungle.

Bonito’s USB-powered MegActive MA305 E-field antenna up a tree…performed superbly in Brazil

Fortunately, I was lent a 4-wheel drive truck for the duration of my visit and so I decided to find a quiet location to park up and listen to the radio – therefore only having to venture outside (at night) to place my antenna. One evening after dinner I got in the truck and drove around the site for a while until I found a location, effectively on the edge of the jungle that was mostly very quiet. Perfect…as long as I didn’t end up as something else’s dinner. I took the super-compact USB-powered Bonito MegActive MA305 antenna with me on this trip because I’d already tested it at home on DXpeditions and in Crete and thus I was confident as to how superbly well it would perform in a quiet location. To supplement my antenna choices, during the first weekend, I made the 90 km drive to the nearest town and bought, amongst other supplies, a 40 metre length of speaker wire and a 3.5 mm jack connector to make a temporary long-wire antenna.

In my experience, there are roughly 3 tiers of Tropical and Tropical Band DX on short wave. There’s the bottom tier of stations which with a decent portable and a few metres of wire can be readily heard in the UK on a Dxpedition – and at home with a magnetic loop antenna, for example and a good quality table-top receiver or SDR. Amongst this group of signals I would include Rádio Clube do Pará, Brazil on 4885 kHz,  Radio Difusora Roraima on 4875.3 kHz, Emisoras Pio XII 5952.5 kHz, Radio Santa Cruz, 6134.8 kHz etc. etc. On the next tier are tropical stations that are really difficult to hear in the UK – but can be heard with good propagation and good equipment. This group includes Radio Aparecida  on 6135.2 kHz particularly, Rádio Educação Rural on 4925.2 kHz, Radio Tarma Internacional on 4774.9 kHz, Rádio Evangelizar (formerly Radio RB2) on 6040.7 kHz etc. There are many more examples from these two groups I could use, but you get the picture. Lastly, there is a tier of stations that are very rarely or never heard in Europe, irrespective of equipment or propagation. Often these stations operate with low TX power which makes them extremely difficult to copy anyway – and that leads to ambiguity farther as to whether they are even on-air. Furthermore, some of these stations broadcast very irregularly, which makes copying them even more of a lottery.

My mainstay travel receiver, the brilliant Eton Satellit..two-time veteran of South American DXing

In this context, a month in Northern Brazil was a useful timescale for surveying the Tropical Bands and geographically tropical stations for the presence of very rare signals. Fortunately, over many hours of listening in Rio Capim with the Eton Satellit and mostly the Bonito MegActive MA305 antenna, I manged to record six signals that are very rarely heard outside of South America. The list of stations follows below, complete with the antenna arrangement. Further below you will find embedded reception videos and text links to the same videos on the Oxford Shortwave Log YouTube channel. Please take the time to watch the videos and note the comments made by some of my subscribers with local knowledge. In particular, Rádio Gaúcha and Rádio Canção Nova on 4825 kHz are very irregular broadcasters and therefore I was fortunate to be in the right place, at the right time to copy their signal. More luck came my way with the reception of Radio Sora de Congonhas on 4775 kHz – made possible because of a total power cut on site, reducing noise effectively to zero (I was indoors at the time). I, personally, never heard anything else other than Radio Tarma, Peru on or around 4775 kHz – itself something of a rarity, except when conditions are very good.

In conclusion, I have to say, once again, the DXing credentials of the Eton Satellit and the Bonito MegActive MA305 USB-powered antenna are clearly demonstrated here. The perfect travelling companions for the serious DXer and broadcast band listener alike, I had no issues getting through security at any of the airports and their combined weight is unnoticeable in a fully loaded backpack. I definitely recommend both products. It’s also worth noting that if you’re travelling to a relatively remote location, even with modest equipment, you might be able to copy rare signals that will provide good information to the rest of us trying to hear those same signals from 1000’s of km away. I will be returning to Rio Capim early in 2018 and I’m seriously considering taking my Perseus SDR with me. A superbly sensitive and selective receiver with noise reduction that actually works, it opens up the possibility of even more exotic DX on that trip.

As always, thanks for watching/listening/reading and I wish you all excellent DX and Season’s Greetings. 73!


   The list of exotic catches and antennas utilised:

  • Radio Apintie 4990 kHz, Suriname – Bonito MegActive MA305
  • Radio Cançao Nova 9675 kHz Sao Paulo – 20 metre long-wire
  • Radio Verdes Florestas 4865 kHz, Cruzeiro do Sul – Bonito MegActive MA305
  • Rádio Gaúcha 11915 kHz, Porto Alegre – Bonito MegActive MA305
  • Radio Sora de Congonhas 4775 kHz, Congonhas – Bonito MegActive MA305 antenna
  • Rádio Canção Nova 4825 kHz, Cachoeira Paulista – Bonito MegActive MA305

 

Click here to watch on Oxford Shortwave Log YouTube channel

 

Click here to watch on Oxford Shortwave Log YouTube channel

 

Click here to watch on Oxford Shortwave Log YouTube channel

 

Click here to watch on Oxford Shortwave YouTube channel

 

Click here to watch on Oxford Shortwave YouTube channel

 

Click here to watch on Oxford Shortwave Log YouTube channel

 


Clint Gouveia is the author of this post and a regular contributor to the SWLing Post. Clint actively publishes videos of his shortwave radio excursions on his YouTube channel: Oxford Shortwave Log. Clint is based in Oxfordshire, England.

Keith is impressed with the Digitech AR-1780

Many thanks to SWLing Post contributor, Keith Batari, who shares the following:

I have just got the AR1780 and comparing with others I’ve had especially the PL-660 and PL-880 beats them both. Firstly the SSB does have an annoying mute when running, but the sensitivity and sound quality is fantastic, and that goes for all bands.

The airband sensitivity is also impressive with excellent squelch. Long wave sensitivity is low[…]. Tuning is without the quirks of the PL-880 and great on general coverage bands.

Headphones sound great. I’ve opened mine and the build quality is good with band trimmers and transformers.

If anyone has acquired the circuit diagram could the post it on the Google site.

If you want a radio with a lot of bang for your bucks, then look no further.

Agreed, Keith! The AR-1780 is certainly a value performer. Click here to read our comprehensive review.

I should add that while LW performance is not stellar on the AR-1780, it should suffice for LW listening in Europe, for example. The C. Crane Skywave series does not include longwave, so if you’re looking for a compact travel portable with LW service, the AR-1780 is a better bet.

Video: Ivan compares the SDRplay RSP1 and RSP1A

Many thanks to SWLing Post contributor, Ivan Cholakov (NO2CW), who shares the following video and notes:

Comparing side to side reception performance on RSP1A vs. RSP1 on medium wave and shortwave using SDR Console 3.

Audio level is uneven because two laptops were used. Antenna is the same, 80m OCF dipole.

Click here to view on YouTube.

Dave’s Digitech AR-1780 notes

Many thanks to SWLing Post contributor, David Morton, who comments with assessment of the Digitech AR-1780:

I’ve been using [the Digitech AR-1780] in Australia (southern Tasmania) for about 5 weeks.  In the last 10 or so days, I’ve got a 26m long wire hanging fairly reliably on a N-S bearing.  My history is that I trained as a marine radio operator in the early 1980s, but worked in commercial IT; so no real radio theory and I only just started listening to SW again since being a volunteer in the South Pacific in the mid 1990s.

Now, to this radio.  I quite like it although it has quirks I wish it didn’t have.  In the 1990s, I used a Panasonic RF-B45 and it was rock solid until it died a few years ago.  Every now and then, I try to fix it, but no luck…

Reception here is quite limited and that’s how I discovered the first quirk:  when it scans at SW frequencies it skips. For example it seems to jump from about 9400kHz to 11000kHz.  I also have an old Jaycar AR1747 and it also skips when scanning.  They also skip from about 26100 and restart at 2300kHz.  Whether it’s a design feature, or a fault, I don’t know. Other than that, I think it’s a great radio so far.  The AR1780 lets you type in the frequencies it skips, it just won’t scan them.

Until I start to find some reliable interesting stations (I’ve picked up some Radio NZ Int and BBC World Service), I’m doing a fair bit of listening to WWVH in Hawaii.  Sure listening to the time isn’t as fun, but it serves a purpose when comparing radios side by side.  WWVH broadcasts on 2500, 5000, 10000, 15000, 20000 and 25000 kHZ I think.  I can usually get 15000 subject to propagation at any time.

Until I gave it away, I also had a Jaycar AR1733 and it also skipped; they all probably share a common chip and skip the same frequencies although I haven’t checked closely.  This radio looks identical to the Skywave many of you mention.  The old AR1747 also had a Crane equivalent, and this was helpful as Crane’s manual was much better!

On the first tests with my long wire antenna, the AR1733 had a fairly clear signal, beat the old AR1747 and the AR1780 was the best.  The AR1747 is hard on its D batteries, so may have been handicapped.  As it got dark, I found the signal didn’t change much on 15000 kHz with any radio, but only the AR1780 would find 5000 kHz while scanning (since it skips over 10000 kHZ).  The AR1747 does not have a keypad, so all tuning is by a dial or the scan function.

Oh yes, a hint I’ve learned for Golan.  I gained the habit of punching  then the desired frequency, then .  The precludes the need to type in leading zeroes and trailing zeros.  For example, I get WWVH by  5000 , while 15000 is  15000.  This may go all the way back to the RF-B45, so I’ve had time to acquaint myself.

Next is batteries, the AR1733/Skywave needs 2xAA batteries, the AR1780 takes 4xAA as did the RF-B45.  I haven’t yet run down any batteries in the AR1780 yet, but all my radios with 4 batteries have always worked better than those with only two.  So the extra size is worth it, and the AR-1780 is a fair bit smaller than the old RF-B45.  The AR1747 was an exception, it took 4xAA and 4xD and AA’s were almost a waste of time in it.  But hey, it’s a telephone book size radio with a big speaker; so I keep it plugged in as much as I can.

Anyway, it’s almost 4PM here, we’re on DST so it’s GMT+11 hours.  The bands start opening up soon so I want to get back to the radio.  I’ve still got a lot of work to find the who, what and where of SW broadcasters.  At least logging them is easy these days, when you tune into something, just point the mobile and it and make a movie!

Thanks for your feedback, David!  I also think the AR-1780 is a gem of a little radio.

Click here to read our review of the Digitech AR-1780.

The thrill of the hunt even knowing there is no “perfect” radio

Though I own a number of portables that have better performance specs and ergonomics, I still gravitate to my ICF-SW7600GR.

Most recently, I received correspondence from Golan Klinger who has been bitten by the radio bug (he calls it “radioitis”). He has been acquiring portables and comparing them, seeking his favorite overall.

Golan had an epiphany he recently shared with me:

Thomas, in your “Mega Review” [summarizing your radio preferences] you wrote:

But this is my personal choice; you might have a completely different answer. I guess that’s the point I made earlier–it all depends on the listener.”

Of all the valuable advice I’ve gleaned from your website, that might be the most important.

Every radio seems to have its own personality and one can read and watch all the reviews in the world but there’s no substitute for sitting down and actually listening to a radio.

I just had an epiphany — there can be no perfect radio and even if there were, finding it wouldn’t be half as much fun as the search for it.

That’s why everyone has multiple radios and when asked which is their favourite they lean back and say, “Well…”

What a wonderful hobby this is turning out to be!

You nailed it, Golan.

Indeed, with most every review I post I receive both praise and criticism later from readers. To some, sensitivity is everything–to others, it’s audio fidelity. Some listeners seek optimal reception on particular bands: longwave, mediumwave, the 31 meter band, FM, etc. There are even some who place a great deal of importance on the design and aesthetics of the radio. When I write a review, I do my best to walk in the shoes of all of these folks. It’s not an easy task.

When I’m not writing a review and am only concerned with what I value in a radio, it’s a balance of performance, flexibility and ergonomics I seek.

But as you say, there is no “perfect radio” out there that could satisfy everyone. I doubt there ever will be.  Each listener has their own set of preferences–the checklist that matters to them most.

I’ll admit that part of what drives me to do radio reviews is my curiosity and the hope that each upcoming model might be a step closer to the elusive “Holy Grail” radio; for me and for you. It’s all about the thrill of the hunt!

Thanks for sharing, Golan!

A review of the Red Oxx Micro Manager EDC and radio gear bag

Besides being a radio enthusiast, regular SWLing Post readers know that I’m also an avid traveler and, as a result, something of a pack geek.

In September, I posted a review of the Red Oxx “Lil Roy”–a small, relatively inexpensive multi-purpose bag that I love to haul my radio gear in.

In the spirit of full disclosure, I’m a huge fan of Red Oxx gear. I’m fairly choosy about the quality of packs that I buy and am willing to pay a premium for packs that offer exceptional durability and are guaranteed for life. Red Oxx gear is designed and made in Montana, USA, and is nearly bullet-proof.

I love the design of Red Oxx bags; they can’t always be accurately described as tactical, low-profile, or urban, however.  Red Oxx leader Jim Markel describes the bags’ strengths this way: “Tactical strength without looking like you’re going to war.”  That’s fair.

Their designs are unique to the company and, I would argue, in Red Oxx bags, form definitely follows function.

After posting my review of the Red Oxx “Lil Roy,” I received a message from a representative at Red Oxx. They kindly noted that they were impressed by the detail my review provided, but also recalled that last year, I’d made a suggestion that they design an EDC (Everyday Carry) bag especially suited to those of us who like to carry radio gear (or any electronic gear, for that matter) out to the field. I specifically requested if they would consider designing a medium-sized bag with padded sides and floor, and the option for an over-the-shoulder carry strap––?

My hopes were not unfounded.  Red Oxx replied, saying that they’d actually designed just such a bag and wanted to know if I would test it prior to release, and offer any input.

Well…How could I resist?

The “Micro-Manager,” as their new product is aptly and amusingly named, arrived the day I left on a weekend trip. As I drove down the road with the unopened box next to me, I simply couldn’t wait to see what the design looked like. Since I didn’t know the dimensions, configuration, compartment size, nor the coloring, I really wasn’t sure what to expect.

Introducing…the Micro Manager

Upon reaching my destination, I opened the box and removed the Micro Manager––and by golly, I was very impressed with the bag’s size:  modest, handy, but not dinky.  Just about right.

I say this because portable radio gear is a funny thing.  Quite often I find a great pack in terms of material and features, but it’s either too small or too shallow for portable gear––or, at the other extreme, swallows my equipment, so that I have to fish around in its yawning depths to find my rig and add extra padding. Rarely is a bag appropriately sized in terms of height, width, and depth for radio carry.  The Micro Manager appeared to be just about the size I’d have made it, if I designed it myself.  But I had still to test it with the actual equipment, so I tried not to get my hopes up too soon.

Construction

I unzipped the pack, noting that the Red Oxx-standard extra-beefy #10 YKK VISLON zippers actually extend to within an inch of the bag’s base. In terms of main compartment access, structure, and configuration flexibility, I find this nearly ideal. The zippers also have attached “monkey fist” knots made from nylon cording that permit easy zipper operation.  These look rather cool, too.  In addition, the Micro Manager is designed with the Red Oxx Claw Shoulder Strap in mind, having two D-rings on opposite sides of the zipper––this means balance on the shoulder. And the Micro Manager includes the Claw Shoulder Strap, which is sturdy and solid.

Like all Red Oxx packs, the Micro Manager’s exterior sports 1000 weight CORDURA nylon material that is available in twelve solid color combos; mine is “Olive.”  Which is, well, olive––olive green––just as you’d expect.  No weird color names to throw you off.

Inside the Micro Manager, Red Oxx opted for a red 400 denier CORDURA Brand nylon lining which makes the interior resilient to nearly any kind of damage, and easy to wash up.  The vivid red color of the lining also means that any items in the bottom of the pack stand out, making it a cinch to find whatever you’re looking for in there.

 

But I wanted to check the pack even more closely, from the inside out.  And so I did just that:  I turned the pack inside out, examined it up close, looked at the stitches and the basic construction:  this is clearly one rugged bag.

Durability is not in question here.  Tom Bihn is another excellent US pack company; I’d say Red Oxx’s products and Tom Bihn’s run neck-and-neck, though Red Oxx has more of a tactical leaning and beefier hardware than the urban sleek, neat packs Tom Bihn produces.

In short, the Micro Manager is one tough pack. I would argue the toughest I’ve ever used for field equipment.

This little pack is built like a tank.

Padding

Of course, what really makes this pack ideal for radio gear is the fact the floor of the pack as well as the side panels are lined with Volara 4-pound closed-cell foam padding. This isn’t super-thick padding, but it’s dense, and in my view effective for radio gear. Nor would I want thick, bulky padding in this pack. It’s simply enough to absorb the shock of setting the pack down, even a hard or hasty set-down, and would likely help protect the contents if the pack were dropped.

To be clear: I’m not talking about stashing upwards of $1300 worth of radio gear in this pack and flinging it out an upstairs window to test the padding.  I’m not planning to check this bag at the airport, since I like my gear handy, and I’ll treat the pack and its contents with reasonable care.  The padding in this case just makes the contents more secure and resilient to the odd drop, bash, or tumble. I think it will do just fine.

Right Size…confirmed

But I still had to see how everything fit in the pack.  Being the radio geek I am, the first thing I did upon my arrival at home was to throw my Elecraft KX2 Transceiver pack and antenna supplies bag in the Micro Manager to see if my gear fit as well as I thought it might.  It all fit like a glove, and still had room for log book, pens, multi-tool, sunscreen, and (of course) bug repellent!

Next, I removed these items, and tried my larger Elecraft KX3 for size in the Micro Manager––again, ample interior room with just enough space left to include a battery pack and antenna supplies. Brilliant!

I tried various combos of gear and kit to find that the Micro Manager is quite a flexible field bag.  Finally!  A pack up to the task.

Configuration

But what really makes this pack shine? The large, open compartment is ideal for us “modular pack” folks.

Tom Bihn Pilot (left) Red Oxx Micro Manager (right)

In my experience, frequent travel means modular packing. In my main EDC pack (a Tom Bihn Pilot) all my gear is organized in cubes and pouches. If I’m heading out the door to catch a flight and want to take a backpack, rucksack, or duffel bag, I can whip the stuff out of my EDC bag, and in a matter of seconds, populate the other pack. Not only does it make transitioning from one pack to another a speedy process, but I’ll know exactly what’s in the pack, and exactly where.

When I opened the Micro Manager the first time, I instantly saw that it lends itself to modular packing, since there’s no internal organization walls and pockets are on the interior sides.

So, aside from packing radio gear, tablets, headphones, a DSLR camera, recording gear, or any other accessories, a packing cube could be used in the Micro Manager to carry clothing on a weekend or on a quick one-to-two night jaunt.

Packed for an overnight trip.

All essentials inside: iPad Air in sleeve, Tom Bihn Snake Charmer (I use as toiletries kit), and an old Eagle Creek packing cube.

Fully unpacked. Click to enlarge.

I’ll take a close look at the Micro Manager’s internal dimensions and see if one of the Red Oxx packing cubes might fit the bill.  Maybe, if I’ve been extra good this year, Santa will drop one in my stocking.

Packing in a cube and other modular packs would take full advantage of the Micro Manager’s modest-outside, spacious-inside capacity. A full-size internal cube packed with clothing would be easy to stash in a hotel room to reduce bulk while you’re in meetings at your location, thus leaving more room for files/reports, magazines, a paperback (for those of us who still like paper), and the like; then you could simply replace your clothing module in your MM for your flight home.

A great EDC pack, too

I have even pulled all of the packs from my Tom Bihn Pilot EDC bag and cheerfully used the Micro Manager for the day.

The Micro Manager works wonderfully as an EDC pack if I don’t need a laptop (my 13” MacBook Air is a little too large). It packs my iPad Air with ease and the padded interior pocket gives me peace of mind, encapsulating the tablet in padding all around. On the outside of the padded tablet sleeve, Red Oxx has added four pencil holders and two larger pouches which are large enough for most smartphones, business cards, field notes, and other small accessories.

Of course, there’s another interior pouch with an embedded pocket on the opposite side of the padded sleeve. I’ve used this sleeve for note pads, coiled antenna line, a paperback book, and a portable radio over the past few months. I’ve used the embedded zipper pocket for charging cables, wire cutters, adapters, USB memory sticks, you name it. It’s not a deep zipper pocket, so I wouldn’t put anything thick inside simply because I don’t like bulking out pockets, but it’s very useful.

On the outside panels of the Micro Manager, you’ll also find two double-zippered pockets. These are shallow in depth, but are ideally suited for cords, wire, and antenna line. Of course, they’ll easily hold notepads and other supplies.

The Micro Manager is large enough to hold 8.5 x 11” paper in a folder or even low-profile notebook. For someone who carries a tablet to work, this could easily replace a briefcase.

The genius behind the Micro Manager’s flexibility, in my view,  is the open design: the ability to open the main compartment zippers either partially or all the way to within an inch of the bottom of the bag. This allows you to fully open the pack without compromising its ability to be self-supporting. Since Red Oxx’s #10 YKK zippers won’t slip backwards, you can even simply open the top of the bag and not worry about the contents spilling out.  I like that.

Summary

Everything I review has its pros and cons, of course. When I begin a review or evaluation, I take notes from the very beginning so that I don’t forget my initial impressions. Following is the list I’ve formed over the time I’ve been evaluating the Red Oxx Micro Manager:

Pros:

  • Durable construction, solidly stitched
  • Made with rugged cordura
  • Lengthy, robust zippers track down to near the base of bag and don’t slide back, making for versatile loading/unloading of the bag––half open or fully open
  • Padded interior pocket for tablets or (for our use) a full-sized portable radio
  • Interior pocket for cables, pencils/pens, smartphones, and/or field notes
  • Ample padding is not too bulky but dense enough to take impact
  • Carry handles plus a strong claw strap for portability
  • Well-balanced on the shoulder
  • Lifetime, no-questions-asked, transferrable warranty

Cons:

If the Micro Manager were marketed primarily for outdoor use, then perhaps some rain protection around the zippers might be beneficial. Though I wouldn’t suggest doing this, I did leave the bag out in a surprise shower once and saw no signs of water penetration. The only point of water penetration could potentially be the zipper line. But from my observation, you’ve nothing to fear if you get caught in a downpour; I just wouldn’t leave it out in heavy rain or overnight.

The Micro Manager’s solid build means the bag is not featherweight.  It weighs in at about two pounds.

The Red Oxx D-Ring attachment points for the Claw shoulder strap are beefy and nearly indestructible. I’m 100% okay with any added weight.

If you prefer bags with entirely built-in storage, like elastic holding straps, instead of the sort of open construction that permits the carrying of modular cubes or kits for your gear, this bag may not be your thing.  But you might want to give it a look just the same; I was glad I experimented with modular kits and have learned to really appreciate their benefits.

And some readers will consider the $130 US price a “con” because similar bag configurations can be found on Amazon, eBay, or elsewhere for anywhere from $20-40. Somewhat better “camping grade” packs might be available at a further premium, perhaps $60-80. So yes, there are many cheaper bags out there.

But here’s the thing about Red Oxx gear: with that price comes rugged and superior quality and durability, in-the-US manufacture, and an incomparable warranty.  You’re buying from a company that designs and manufactures all of the their packs in Billings, Montana, USA. Their customer service, in my experience, is without compromise. They guarantee their products with a “no bull,” no-questions-asked, lifetime warranty.

Red Oxx routinely posts photos from their shop where employees are repairing customer bags bags that have been so severely battered that no (sane) company would consider it a warranty repair. But there’s integrity in Red Oxx’s insanity. That’s their customer base––folks who actually use their gear, who travel, who camp, who adventure.  Those who get out there, get going, get dirty.  These bags really take a beating, and thing is, it appears they can take it.

Remarkably, Red Oxx even honors their warranty without receipt of purchase, even knowing you might have purchased it used. Don’t believe me? Search eBay for Red Oxx bags–look at the completed sales pricing, and you’ll find even used bags selling for within a few dollars of their brand new pricing. Red Oxx doesn’t care how you came to be with their bag––you’re their customer, and that’s all that seems to matter to them.

So it’s clear:  Red Oxx packs not only hold your gear, they hold up––and they hold their value––over time. In my opinion, too, this bag is for the long haul.

Conclusion

Those of you who follow my blog know that I typically review radio gear. When I start testing new equipment, I never really know what I’m going to run into, especially if the equipment is mass-produced and the manufacturer has a questionable legacy when it comes to quality control.

I wasn’t sure what to expect when I opened the Micro Manager, having only seen a preview ad photo which showed little to no detail.  But I knew prior to evaluating this bag that its quality would be nothing less than benchmark. Red Oxx doesn’t allow anything out of their shop that doesn’t obviously meet some of the strictest quality standards in the business. As I mentioned above, I only know of one other pack company in their league, and that’s Tom Bihn. You simply can’t find better quality than these two US companies design into all of their US-made gear.

My only concerns when checking out the Micro Manager for the first time was about configuration and flexibility. Would it effectively hold my field gear without bulging or straining? Would internal organization get in the way of the main compartment’s capacity? Could this pack be used as an EDC bag, or personal carry-on item?

For my use, all of these questions were answered with a resounding Yes!  

So…do I recommend the Micro Manager? Heck, yes! Without reservation. As long as your portable kit fits inside, and you like the configuration as I do, you’ll be pleased with the Micro Manager as well as with the company that produces it.  This bag will stick around, staying faithfully by your side for many years to come.

Click here to check out the Red Oxx Micro Manager.

On a side note: Shhh…I’ll be purchasing another Micro Manager shortly. While I’ve been testing this bag, my wife has repeatedly tried to steal it to carry her art supplies. For once, I know what to get her for Christmas! And, thankfully, though she edits my reviews, she never reads my live blog. Mum’s the word! 

Review of the Digitech AR-1780 portable shortwave radio

The following review first appeared in the October 2017 issue of The Spectrum Monitor magazine.


Earlier this year one of my readers in Australia noted the addition of the Digitech AR-1780 to the product offerings of the Australia and New Zealand-based retailer Jaycar.

One thing I’ve learned over the years is that there are few in-country sources of shortwave radios in both Australia and (especially) New Zealand. Jaycar, in a sense, represents what RadioShack and The Source have offered in the US and Canada––a more accessible electronics retailer with some shortwave radio selection.

Jaycar sells radios badged with the name Digitech. Unfortunately, none of Jaycar’s recent additions––and there have been a few––have been enormous hits among serious radio enthusiasts. The company currently offers five Digitech models: the AR1736 ($18.95 AUD), AR1721 ($25.95 AUD), AR1748 ($129.00 AUD), AR1945 ($159.00 AUD), and now the AR1780 ($129.00 AUD).

The Jaycar models are either very cheap sub-$30AUD digital portables, or pricier large portables with a form factor similar to the Grundig S350DL and S450DLX, or the C.Crane CCRadio-SW. The new AR1780 fits somewhere between––a compact portable that promises a compliment of features tailored for the radio enthusiast.

In this review, we’ll take a close look at the AR1780, starting with its feature set.

Features

What appeals to me about the Digitech AR1780 is the amount of features provided by such a compact, traveller-friendly form factor.

Here’s a comprehensive list of the AR1780’s features and specs:

Frequency coverage:

  • FM 87.5 – 108 MHz
  • MW 522 – 1620 kHz or 520 – 1710 kHz
  • SW 1711 – 29,999 kHz
  • LW 150 – 450 kHz
  • AIR 118 – 137 MHz

Modes:

  • FM (including RDS)
  • AM
  • Single Sideband

Selectable Bandwidths:

  • AM mode: 6, 4, 3, 2.5, 2, & 1.81 kHz)
  • SSB mode: (4, 3, 2.2, 1.2, 1 & 0.5 kHz)

Convenient features:

  • Sleep timer
  • Clock/Alarm
  • Thermometer
  • Signal strength meter
  • Squelch control
  • Voice/Music selectable audio filter
  • Dedicated fine tune control
  • Headphone jack (3.5 mm)
  • Key lock button
  • Key beep on/off
  • Tuning knob and tuning step up/down buttons
  • Display button cycles through alarm, time, temperature, and signal strength
  • FM mono/stereo selection
  • Backlight button
  • Selectable 9/10 kHz regional MW tuning steps
  • Flip-out backstand

Power source: 7 VDC or 4 x AA cells (not included, can be internally charged if NiMH cells)

Antenna: Built-in telescopic and 3.5mm socket for external antenna

Weight: 253g/0.56 lbs (excluding batteries)

Dimensions: 150(W) x 95(H) x 30(D)mm

Operation Manual

The Digitech AR1780 ships with a small user manual. In fact, other than the hand strap, the user manual is the only additional item in the box besides the radio itself.

The manual is quite thin––slightly smaller in height and width than the AR1780––and only contains about eight front-and-back mini pages.  Although readable, it’s littered with grammatical and punctuation errors.  While a manual is certainly a welcome reference item with this feature-packed radio, this manual comes up short, lacking detailed explanations of features and even leaving some out altogether:  it does not, for example, offer any explanation on the use of the excellent squelch control, nor does it fully explain the station memory set on multiple memory pages––!  Rather unfortunate, as these features deserve a clear explanation.

First impressions

The Digitech AR-1780, like many DSP-based portables, includes a handy temperature display which can be toggled for Celsius or Fahrenheit.

I really appreciate the modest, portable form factor of the AR1780, so it had that going for it before I even opened the box. I travel with portable radios a lot, so the compact body of the AR1780 is very appealing. It’s not as compact as the C. Crane CC Skywave series, or the Grundig G6, but is much smaller than my Tecsun PL-660 and PL-880, or my Sony ICF-SW7600GR.

Comparing size: The Tecsun PL-680 (top), Digitech AR1780 (middle), and the C. Crane CC Skywave (bottom)

Unlike the radios mentioned above, the AR1780 does not include some sort of protective case or bag. I believe this is an omission for a radio aimed squarely at the traveler.

Fortunately, the plastic chassis of the AR1780 feels substantial enough. With the key lock engaged, the only likely problem that could arise from having no protective case is damage to the display, such as scratching.

The buttons all have a tactile feedback and seem to respond quickly enough, save powering up the radio, engaging the SSB mode, or changing bands, each of which takes a couple of seconds to engage.

I especially like the fact the AR1780 has, on the right, a dedicated multi-function tuning knob. One can turn the tuning knob to scan frequencies or press it to cycle through fast or slow tuning steps (or to turn off this knob’s function entirely).

The AR1780 also has a dedicated fine tune control––a tuning wheel just beneath the main tuning knob also on the right side of the radio (see image above).  The only odd quirk about this is that this is where most radios have a volume control. Being a creature of habit, many times I’ve inadvertently shifted frequencies when I simply wanted to turn up or down the volume! The volume control, meanwhile, is in the same position on the left side panel of the radio between the antenna and earphone jack.

Speaking of volume, the AR1780 can provide plenty of it-––almost room-filling audio––via the internal speaker. Best yet, I like its balanced fidelity: mellow, with notes of bass, but ample treble when listening at moderate volume. The audio response curve is almost ideal for such a small package.

Something else worth noting: the AR1780 fits nicely in the hand. In general, it’s a great size for portable listening.

Major bonus for a travel radio: the AR-1780 is powered by standard, accessible AA cells. Note that the frequency range information silk-screened on the back stand is incorrect–shortwave coverage extends up to 29,999 kHz.

On the downside, however, one negative I noted shortly after beginning use: muting between frequency steps. In AM mode, this is not as distracting as in SSB mode. Muting makes band scanning a more tedious and fatiguing experience. Unfortunately, in this era of DSP-chip-based receivers, it seems muting has resurfaced.

Also, as with many other DSP portables, you can often hear “input” noise when pressing buttons. In other words, if while listening to one frequency I decide to key in another, I’ll hear a little clicking or buzz in the audio as each button is pressed. This is a very minor annoyance since it only happens when buttons are pressed, nonetheless, I thought it worth mentioning. I often wonder if it’s a result of poor shielding, something from which similar models suffer.

Performance

Over the past two weeks, I’ve had the AR1780 on the air almost every day. I’ve compared it with a number of receivers, but mainly The C. Crane CC Skywave, The CountyComm GP5-SSB, and even the Grundig G6. Below, I break down my notes by band.

AIR band

Let’s start with the “bonus” band: the VHF aviation band.

I’m sure there a number of readers who’ll never use this band, but I am not one of them. Personally, I really enjoy listening to aviation traffic, especially when I travel by air. Since the advent of the AIR band on ultra-compact radios, I no longer feel like I have to lug an additional scanner or receiver just to listen to the local air traffic control; that’s a plus.

Performance-wise, the AR1780 seems to be equal with the CC Skywave on the AIR band. Like the CC Skywave, the AR1780 has a squelch control––a fantastic feature, indeed. Simply tune the radio to your favorite aviation frequency, press and hold in the tuning knob on the side, and then use the tuning knob to adjust the squelch level. I find level 3 or 4 works well.

Note that unlike the squelch on the CC Skywave, the squelch control on the AR1780 actually carries over to the shortwave band. If you have squelch set on the AIR band, then switch to another band where squelch isn’t needed, you will need to turn it off. I never use squelch on the shortwave or mediumwave/AM broadcast bands; normal fading (QSB) can trick the squelch to open and close while tuned to a frequency.

Another convenient feature: press and hold the AIR button to start an automatic scan of the entire band. It’ll run through the AIR band once, saving any active frequencies. This is an ATS feature, so only makes one pass.  I wish you could set it to continuously scan the aviation band in a loop, much as a traditional scanner would.

FM

The AR1780 does a fine job on the FM band. It easily received my benchmark FM stations and even decoded the RDS from one broadcaster about 110 miles from my home base.

When listening to marginal FM signals, the AR1780 can be set to mono mode instead of default stereo mode.

What’s more, the internal speaker is exceptional at handling music––reasonably full fidelity given the limitations of the speaker size.

Longwave/Mediumwave

I’ll be the first to admit that longwave is not an easy band for me to evaluate. Here in North America, there are so few opportunities in the summer to log trans-Atlantic longwave stations. Indeed, unless I’m travelling to New England or the Canadian Maritime provinces, I never try to do so on a portable. I leave TA longwave DXing to my SDRs and tabletops back home where I can listen with the assistance of a large antenna.

But when I travel to Europe, longwave is a must, so my travel radio needs this capability. Based on my ability to receive benchmark LW airport beacons, I’m going to assume the AR1780 will do a fine job receiving European longwave stations while in Europe.

Likewise, the AR1780 should serve you well for both daytime and nighttime reception on mediumwave. Fortunately, switching between 10 and 9 kHz steps is simple: with the radio powered off, simply press and hold the “0” button to toggle between these steps.

On longwave and mediumwave, you can also use SSB mode (both upper and lower sideband). This could come in handy to reject adjacent signal interference on MW.

Likely an oversight on the part of the manufacturer, you can even engage the squelch feature, though why you would on LW and MW, I’m not sure.

Of course, with the fine-tuning control, you can navigate both bands in 1 kHz steps should you desire.

In short: the AR1780 is adequately sensitive on mediumwave and likely on longwave, as well. I wouldn’t rely on it for any serious DXing, but for a travel radio, it will serve you well.

Shortwave

Being first and foremost an avid shortwave listener, I spent the bulk of my AR1780 evaluation time on the shortwave bands and I’m overall very pleased with its performance.

In almost all of my comparisons on the shortwave bands, the AR1780 had a slight edge over its competition, namely, the CountyComm GP5-SSB, the Grundig G6, and the C. Crane CC Skywave.

To be clear, though, it was a very slight performance edge which I think may be attributed to the fact the AR1780’s telescopic antenna is longer, giving it a bit of gain over its competitors. For example, the AR1780’s antenna is about 17.7 cm (7 inches) longer than that of the smaller CC Skywave.

Still, placed on a table and not held in the hand, the AR1780 was able to pull in weak signals better than its competitors. I also compared it with the the Tecsun PL-680––one of my most sensitive shortwave portables––and, not surprisingly, the PL-680 outperformed the AR1780.

Again, I should stress that the sound from the AR1780’s internal speaker is more pleasant to listen to for extended periods than that of its smaller competitors.

SSB

Single sideband reception on the AR1780 is pretty impressive for a radio in this price class. On my particular unit, I found that the fine-tuning control was almost always needed to budge the frequency a few tenths of a kilohertz, even when I knew a particular signal was exactly on frequency. My Grundig G6 always had the same problem––indeed, sometimes in SSB mode, I had to listen “up” as much as 2 kHz on the G6.

The fine-tuning control works very effectively in SSB mode, nonetheless. Audio is quite pleasant, although the noise floor is not quite as low as it is on my larger portables like the Tecsun PL-680, PL-880, and the new S-8800. In my comparison tests, the AR1780 was slightly more sensitive than the CountyComm GP5-SSB, and about equal to that of the Grundig G6.

Click here to watch a short video of the AR-1780 in SSB mode.

In short? SSB is a welcome, capable addition on this compact portable.

Summary

Every radio has its pros and cons, of course. When I begin a review of a radio, I take notes from the very beginning so that I don’t forget my initial impressions. Following is the list I’ve formed over the time I’ve been evaluating the Digitech AR1780:

Pros:

  • Display is clear and easy to read
    • Time is always present via display button
    • RDS info scrolls on lower line
    • Backlit display easy to read
    • Viewing angle good, save from top
  • Dedicated fine-tuning control (even on FM)
  • External antenna jack
  • 9/10 kHz selectable MW steps
  • Time set is simple
  • Adjustable bandwidth in AM and SSB
  • Decent battery life from four standard AA cells
  • Audio from the built-in speaker has better fidelity than other radios in this size

Cons:

  • No bag or carry case
  • DC input voltage is an odd 7V
  • Muting between frequency changes, especially annoying in SSB
  • Sometimes keylock activates backlit display permanently
  • Scan function on AIR band doesn’t loop, it’s an ATS pass only
  • My AR1780 had incorrect information silk-screened on the back regarding frequency coverage
  • Minor: sluggish response when switching bands or modes

Conclusion

Is the Digitech AR1780 worth the price?  I think so. For $129.00 AUD (roughly $103 USD), you’re getting a full-featured radio that is, by and large, a pleasure to operate. It has its quirks, but so do so many ultra-compact portables in this price bracket. It’s certainly worth considering if you live in Australia or New Zealand.

I’d like the AR1780 to be a little more refined:

  • No muting while band scanning in AM or SSB modes
  • A proper scan function to accompany squelch on the AIR band
  • Squelch that doesn’t carry over when bands are switched

What I do think is impressive for this price:

  • Overall smooth audio from the internal speaker
  • Dedicated external antenna port
  • Dedicated tuning and fine-tuning controls
  • Useful screen which displays time and even RDS information
  • Sturdy, relatively long telescoping whip antenna

These are features that make the AR1780 stand out among radios in its price class.

Is it a benchmark performer?  No. But it does the job rather well for the price, and frankly, I think I’ll use this during travel occasionally, even though I have several other smaller portables.

Why?  Well, for one thing, this radio has better audio fidelity from the internal speaker than most of my ultra-compact portables. When I’m in a hotel and listening to a local radio station or even a shortwave broadcaster that’s punching through typical hotel RFI, I’ll appreciate the richer, mellower audio. Many of my smaller portables are lacking in this respect, thus I usually end up listening through headphones.

In fact, the only thing this little receiver lacks for us here in North America is NOAA weather/Environment Canada radio frequencies––but it’s no wonder it’s not included, as it was never intended for this market. But I’m glad the step size on the AM broadcast band can be switched to our 10 kHz spacing, which makes it useful here in North America.

In short, the AR1780 has exceeded my expectations––though admittedly, it may be because it was my first experience with a Digitech radio and I had heard so many lukewarm reviews of previous models.

Regardless, I’m happy I paid a small premium to order this little rig from Down Under.

If you’re a radio enthusiast in Australia or New Zealand who wants the best performance in a portable, and doesn’t mind a larger radio, then do splurge for the Tecsun PL-660, PL-880, or Grundig Satellite. There is a dedicated Tecsun distributor in New South Wales and there are always, of course, retailers on eBay and one of my favorites, Anon-Co in Hong Kong.

And if you’d like to order a Digitech AR1780 outside of Australia or New Zealand, you can purchase from this eBay seller, as I did.