I also wanted to do a little shortwave listening after completing the activation. I had no idea what propagation would be like, but thought I’d tune around below the 20 meter band where the antenna was currently resonant.
I deployed the CHA Emcomm III Portable random wire antenna which, I must say, is a superb shortwave listening antenna for the field.
Since you can’t see the antenna in the first photo below, I marked up the second one. The blue line represents the 73′ radiator, and the green line the counterpoise: Here’s the short video I made around the 22 meter band:
I had planned to make a few audio recordings via the built-in digital recorder but I left my MicroSD card at home. No worries, though, as I plan to make some recordings for readers to compare in the coming days if time allows.
If you have any questions about the IC-705, feel free to ask in comments.
Many thanks to SWLing Post contributor, Don, who notes that in anticipation of the TX-500 hitting the market, W2ENY has posted a number of accessory cables, spare connectors and even a military-style handset on his eBay store and website.
To be clear, via Ham Radio Outlet, the TX-500 ships with everything you need to get on the air via SSB or CW. Here’s the full accessory set that accompanies the TX-500:
Screen grab from HRO’s TX-500 product page.
If you wish to build your own cables, or you’d like additional break-out cable options, check out W2ENY’s selection.
A note about TX-500 connectors
I’ve received numerous inquiries from readers regarding the “non-standard” multi-pin connectors used on the TX-500 to maintain water resistance. Truth is, the TX-500 connectors are only non-standard in the amateur radio world–they are not proprietary as some have implied.
The TX-500 uses GX12 mm connectors that are widely used in aviation, commercial and military applications. They’re easy to find online, but the price per each with shipping is typically around $7.00-8.00 US. You get a better deal if you buy in bulk, but often bulk packages of 5 or more are of the same pin count/configuration.
After browsing W2ENY’s site, I see he’s offering a full set of TX-500 connectors for $30 via eBay and his store. Not a bad price although I wish he’d also offer a package with three in particular: the speaker/mic, CW, and power ports (perhaps if he reads this, he’ll consider!).
If I were to purchase the TX-500, I would grab an extra set of GX12mm connectors to build my own cables.
Any TX-500 questions?
While I’m at it, feel free to comment with any of your questions about the TX-500. I only have this rig in the shack and field for a few more days before I need to return it. I’ve started a frequently asked questions post about the TX-500 that I’ll publish this week.
And if you’re wondering, yes, I’m very tempted to add this rig to my own collection. More on that later–!
Yesterday, I hit the field again with the lab599 TX-500 Discovery. This time, I wanted to give the radio a proper shake-out by hiking to my location with the entire station in my pack.
This TX-500 transceiver is on loan, so I haven’t built a custom field kit for it like I have with my other radios. To be on the safe side, I packed the rig and all of its accessories in my Red Oxx C-Ruck pack.
The C-Ruck is loaded with three antennas, two LiFePo batteries, DC distribution panels, extra adapters/connectors, and essentially everything I need to handle pretty much any field situation. I take it on every field activation when I can afford the space in my car/truck because it’s so complete and stocked, it’s like a mini shack in a bag complete with tools I might need in the field.
This radio bag was total overkill for a quick day hike into Pisgah National Forest and I did remove a few heavy items like a larger battery, my Wolf River Coils TIA vertical, and other extra accessories. But at the end of the day, my four-legged hiking partner (Hazel) and I both agreed that I would kick myself if I arrived on-site and realized I was short, say, one PL-259 to BNC connector.
Turns out, the C-Ruck was just what the doctor ordered. The TX-500 is so compact, it fit in the C-Ruck’s top flap pocket that holds my logging notepad. I used that top flap to strap down my folding three legged stool for the hike.
The best part was the C-Ruck made for a perfect field table! The front pocket of the pack (which contains supplies like a first aid kit, emergency tarp/sleeping back, protein bars, etc.) propped the TX-500 in place.
After finding a nice spot off-trail, I set up my EFT Trail-Friendly end fed antenna in short order, plugged it into the TX-500, plugged in my 6 aH Bioenno LiFePo battery, the TX-500 Speaker/Mic (which conveniently clipped o the C-Ruck top flap), and finally my homebrew CW key cable.
Since I had no mobile Internet service at this site–no surprise–I started the activation in CW which gave me the best opportunity to be auto-spotted by the Reverse Beacon Network (RBN) and for CW hunters to find me on the announced frequency via the POTA site.
I started calling CQ and was instantly rewarded with a string of contacts on 40 meters.
After working that small pile of hunters, I moved up to the 20 meter band, started calling CQ, and made this short video:
Shortly after making this video, I heard thunder nearby and had to pack up. I’d hoped to work a few stations on 20M in CW, then switch over to SSB and work more. I’m willing to tempt fate when it’s just rain, but I don’t play with lightening.
All in all, It was a very pleasant–although short–activation. Hazel and I really enjoyed the hike. Frankly both of us love any excuse to hit the trails or parks.
Hazel was more interested in squirrels than DX.
I’m finding that the TX-500 is a very sturdy and capable field radio with fantastic ergonomics.
This morning, I pulled out the scales and found that the radio, speaker/mic, and power cable all weigh in at 1 pound 9 ounces. That’s a lightweight kit by any standard.
Easy on batteries
Also, the TX-500 only seems to need about 110-120 milliamps of current drain in receive. That’s an impressive number for sure–right there with the benchmark Elecraft KX2. I’m pretty sure I could operate for hours with only my 6 aH LiFePo battery pack.
More to come
I still have the TX-500 for a week and hope to continue taking it to the field. I had planned to go out again today, but the weather forecast is dismal. Instead, I’ll chase some parks here in the shack!
The most common complaint I hear from new SWLing Post readers is that they can’t hear stations from home on their receivers and transceivers. Nine times out of ten, it’s because their home environment is inundated with man-made electrical noises often referred to as QRM or RFI (radio frequency interference).
RFI can be debilitating. It doesn’t matter if you have a $20 portable radio or a $10,000 benchmark transceiver, noise will undermine both.
What can you do about it?
Since we like to play radio at home, we must find ways to mitigate it. A popular option is employing a good magnetic loop receive antenna (check out this article). Some readers find noise-cancelling DSP products (like those of bhi) helpful when paired with an appropriate antenna.
But the easiest way to deal with noise is to leave it behind.
Take your radio to a spot where man-made noises aren’t an issue.
If you’ve been reading the SWLing Post for long, you’ll know how big of a fan I am of taking radios to the field–both transceivers and receivers. Not only do I love the great outdoors, but it’s the most effective way to leave RFI in the dust.
My family had a great time at the site–we enjoyed a picnic and I played radio–but Hazel (our trusty canine companion) decided to roll in a cow patty during our hike. Hazel thought it smelled wonderful. Her family? Much less so. And all five of us were staring at a two hour car ride together.
Fortunately, my wife had a bottle of bio-degradable soap we use while camping, so I washed Hazel in Hampton Creek. (Turns out, Hazel didn’t mind that nearly as much as getting washed at home in the tub.)
The EFT Trail-Friendly antenna is incredibly compact and quite easy to deploy.
The EFT is my favorite field antenna for POTA activations. It works so well and is resonant on 40, 20 and 10 meters. With an ATU, I can also tune any bands in between. I’ve deployed this antenna at least 130 times in the field and it was still holding up.
I was bummed. Hampton Creek is nearly a four hour round-trip from my home. Was it worth the trip to rescue my antenna?
Fast-forward to Sunday: my amazing wife actually suggested we go back to Hampton Creek Cove on Sunday and also check out nearby Roan Mountain State Park. Would my antenna still be in the tree? Hopefully.
Whew! Still hanging out!
Fortunately, my antenna was still hanging there in the tree as I left it the week before. I was a little concerned the BNC end of the antenna may have gotten wet, but it was okay.
Mercy, mercy, so little noise…
I turned on my Elecraft KX2 and plugged in the antenna. Oddly, there was very little increase in the noise level after plugging in the antenna. That worried me–perhaps the antenna got wet after all? I visually inspected the antenna, then pressed the “tune” button on the KX2 and got a 1.4:1 SWR reading. Then I tuned around the 40 meter band and heard numerous loud stations.
What was so surprising was how quiet the band was that day (this time of year the 40M band is plagued with static crashes from thunderstorms).
Also, there were no man-made electrical noises to be heard. This allowed my receiver to actually do its job. It was such a pleasure to operate Sunday–no listening fatigue at all. Later on, we set up at Roan Mountain State Park and did an activation there as well. Again, without any semblance of RFI.
When I’m in the field with conditions like this, I always tune around and listen to HF broadcast stations for a bit as well. It’s amazing how well weak signals pop out when the noise floor is so incredibly low.
It takes ten or so minutes to set up my POTA station in the field, but if you have a portable shortwave radio, it takes no time at all. None. Just extend the telescoping antenna and turn on the radio.
Or in the case of the Panny RF-2200 use its steerable ferrite bar antenna!
If you’re battling radio interference at home, I would encourage you to survey your local area and find a noise-free spot to play radio. It could be a park, or it could be a parking lot. It could even be a corner of your property. Simply take a portable radio outside and roam around until you find a peaceful spot with low-noise conditions. It’s the most cost-effective way to fight RFI!
Post readers: Do you have a favorite field radio spot? Do you have a favorite field radio? Please comment!
If you’ve been reading the SWLing Post for long, you’ll know that I’m a big fan of portable radio gear. Whether it’s a portable receiver, an SDR, or a ham radio, I believe radios are made to be taken outside––rain or shine; hence I love programs like Parks On The Air (POTA ) and Summits On The Air (SOTA), and I’ve always loved ARRL Field Day.
Of course, this ARRL Field Day was a bit different than years past due to Covid-19––there were more individuals on the air with their own Field Day stations, while there were relatively few clubs on the air. Typically, the opposite is true.
This year I’d planned to operate from the field at various POTA locations in western NC; some contenders were the Blue Ridge Parkway, Pisgah National Forest, and Mount Mitchell State Park. In the past few years, my buddy Vlado (N3CZ) and I––with spouses in tow––hit the field together, but this year he was out of town, and I planned to go solo.
I plotted a few hours of Field Day time at Craggy Gardens on the Blue Ridge Parkway. The night before, I had my antennas and the Elecraft KX2, KXPA100, Heil Pro Headset, and 15 aH LiFePo battery (all packed in my go-packs, of course), in the car and ready to go.
Saturday morning. I woke expecting fairly nice weather: partly cloudy with a chance of showers. Turned out, it was chilly, gusty, with total cloud cover and fairly constant rain. I’ll admit, it dampened my enthusiasm for Craggy, because while it’s a gorgeous site, it’s well above 5000′ ASL, thus the winds up there can be seriously gusty and the weather can turn on a dime.
So, I decided to put up my feet in the shack and operate class 1E, meaning on emergency/battery power.
I started calling CQ at the start of Field Day and, to my surprise, worked a constant pile-up for nearly an hour. Within that fairly short space of time I found I’d already collected about 90 or more stations on 40 meters.
After that, I hunted and pounced for maybe an hour, then took a break; later that night, I operated intensively again for 30 minutes or so. Had I been at a Field Day site, I would have been a much more dedicated operator, but frankly, I’m not even sure I plan to send in my logs. Still, it was fun.
My set up on a damp picnic table at the Craggy Gardens Picnic area.
Sunday morning. The weather was much more pleasant from the get-go, with sun and wind, though thunder showers were in the forecast. Around 11:00 or so, my wife suggested we pack up and head to Craggy Gardens for a little radio fun followed by some lunch and hiking.
We reached the site–it was beautiful, but ominous. Thick fog and Saharan dust (no kidding) covered the site and surrounding mountains. Still, I set up the station and my new Wolf River Coils TIA portable vertical.
My daughter and I deployed the TIA vertical in a matter of 5 minutes.
I think I logged two stations before the misty clouds rolled up all around me; then (remember that change-on-a-dime weather?) a sudden––and torrential––downpour came from nowhere. My wife snagged all she could carry and ran for the car, and I quickly covered my gear with my raincoat and packed everything in my packs as soon as possible. I had to make two trips to the car to pack everything, and needless to say, with my raincoat in the service of my equipment, I was drenched to the skin. I literally looked like I had jumped into a lake with my clothes on. Fortunately my gear––at least, the important gear––was only a bit damp, but internally fine. Herein lies one of the great things about being a pack geek: quality packs tend to be water-resistant, if not fully waterproof.
But. If I’m being completely honest, I’ll admit I was a bit miffed that I got so little radio time before the heavens opened. We knew there would be a risk of bad weather and, frankly, other than the hassle of packing and unpacking, we actually acknowledge the entertainment value of a little WX from time to time. After all, this is the hazard of operating under a wide open sky.
My wife, sensing my disappointment, suggested we go to another site to play a little radio, but at that point I just wasn’t feeling it. What I felt instead was the damp…wringing wet-level damp…and my spirits were dampened. too. I suggested we make our way back.
En route, I saw a sign for the Zebulon B. Vance Birthplace––a historic site that I knew was a POTA entity. I’d completely forgotten about this site, and decided to make a detour so I could scope out the site for a future activation. By now I’d warmed up a bit, and a bit of lunch helped revive my flagging spirits.
Turns out the site’s visitor’s center is closed on Sunday, but the gates are open so the public can enjoy the grounds. We drove up to their covered picnic area, although the cover was now peace of mind only, as the sun was again making an appearance. The setting was…well, ideal. And here I was. How could I not go ahead and activate this POTA site?
Zebulon B. Vance Birthplace (K-6856)
It was windy but warm, and while my wife spread out the packs, lunch cooler, and jackets to dry, I, too, found I was no longer dripping. By the time I set up the Wolf River Coils TIA vertical and my KX2/KXPA100, the togs were fairly dry, and indeed I was quite comfortable again. I hopped back on the air and worked a number of stations in short order, easily logging the ten needed to confirm the park activation.
The Wolf River TIA is outstanding in its field (sorry!)
Later, I discovered that the site was an “All-Time New One” (ATNO) in the POTA system. A bittersweet discovery, in a way, because Field Day is not the best time for POTA hunters to log a new site. Still, I wasn’t even calling CQ with POTA in mind; I just worked Field Day stations and had a great time.
Just as I finished, there was yet another downpour, but as the picnic area where I’d set up was covered, I no longer feared my gear getting soaked. This time, it was a sudden loud clap of thunder that gave me my cue to pack up quickly!
Still, all in all, I was very pleased with my weekend Field Day chase, and it was worth dodging rain storms for it. Sure, I would have loved to play radio at Craggy Gardens for a couple hours, but it was a pleasant surprise to fit in an ATNO activation before the end of the day. I’d have never guessed the Vance site was an ATNO, since it’s so accommodating and accessible. Indeed, I’ve discovered that, at this stage in POTA, most of the sites that haven’t been activated are either newly-incorporated into POTA or are very inaccessible. If you missed me there on Field Day, no worries: I plan to head out there again in the very near future.
Oh, and I did learn one more thing over the weekend: the Wolf River Coils TIA vertical antenna is incredibly easy and speedy to deploy. I’m very pleased with this recent acquisition!
Parkway and parks? I’ll be back soon. My radio’s already packed.
Did you participate in Field Day or put your receivers to the test by trying to log exchanges between stations? Please comment!
My Red Oxx Micro Manager packed with a full radio field kit
Yesterday, my family packed a picnic lunch and took a drive through Madison County, North Carolina. It was an impromptu trip. Weather was forecast to be pretty miserable that afternoon, but we took the risk because we all wanted to get out of the house for a bit.
Although that morning I had no intention of performing a Parks On The Air (POTA) activation, my family was supportive of fitting in a little radio-activity, so I jumped on the opportunity!
A quick glance at the POTA map and I determined that the Sandy Mush State Game Land (K-6949) was on our travel route. Better yet, the timing worked out to be ideal for a lunch picnic and before most of the rain would move into the area.
Ready for radio adventure
I had no time to prepare, but that didn’t matter because I always have a radio kit packed, fully-charged, and ready for the field.
The Micro Manager pack easily accommodates the entire kit
This 20 year old blue stuff sack is dedicated to antenna-hanging. It holds a reel of fishing line and a weight that I use to hang my end-fed antenna in a tree or on my Jackite telescoping fiberglass pole. The sack also accommodates a 10′ coax cable.
The Elecraft KX2 transceiver, EFT Trail-Friendly Antenna, hand mic, CW paddles, C.Crane earphones, and wide variety of connectors and cables all fit in this padded Lowe Pro pack:
The advantage to having a simple, organized radio kit at the ready is that everything inside has its own dedicated space, so there’s no digging or hunting for items when I’m ready to set up and get on the air.
This level of organization also makes it easy to visually inspect the kit–missing items stand out.
Yesterday I parked our car at one of the Sandy Mush Game Land parking areas, deployed my field antenna, and was on the air in a matter of seven minutes at the most.
Technically, this should read “Activator” parking area! (A questionable inside joke for POTA folks!)
We planned for heavy rain showers, so I fed the antenna line through the back of my car so that I could operate from the passenger seat up front.
I also brought my Heil Proset – K2 Boom Headset which not only produces better transmitted audio than the KX2 hand mic, but it frees up my hands to log stations with ease. This is especially important when operating in the front seat of a car!
The great thing about the KX2 is that it’s so compact, it can sit on my clipboard as I operate the radio (although typically I have an elastic strap securing it better). Since all of the KX2 controls are top-mounted, it makes operation a breeze even in winter weather while wearing gloves.
Since I routinely use the KX2 for shortwave radio broadcast listening as well, I know I always have a radio “locked and loaded” and ready to hit the air. My 40/20/10 meter band end-fed antenna works well for the broadcast bands, as long as there is no strong local radio interference (RFI). When I’m faced with noisy conditions, I pack a mag loop antenna as well.
What’s in your radio go-kit?
Having a radio kit stocked and ready to go on a moment’s notice gives me a great sense of security, and not just for recreational ham and shortwave radio listening reasons.
Sometimes I travel in remote areas by car where I’m more than an hour away from the nearest town and where there is no mobile phone coverage.
If my car breaks down, I know I can always deploy my radio kit and get help from the ham radio community in a pinch. Herein lies the power of HF radio!
If you haven’t built a radio go-kit, I’d highly recommend doing so. Although I’m a bit of a pack geek, keep in mind that you don’t need to purchase special packs or bags for the job. Use what you already have first.
I’m plotting a detailed post about the anatomy of an HF radio field kit. In the meantime, I’m very curious how many of you in the SWLing Post community also have a radio kit at the ready–one based on a transceiver or receiver. Please comment!
Better yet, feel free to send me details and photos about your kit and I’ll share them here on the Post!
I posted a quick announcement on the POTA website, and jumped in the car.
When I arrived at the park, I noted an excellent, easily accessible picnic site with a nearby tree to hang my EFT Trail-Friendly antenna. Since I hadn’t been to this park in many years, I continued driving to check out other potential POTA sites.
In the main parking lot, I spotted a ham radio operator’s car with a prominent callsign on the back window and a POTA bumper sticker. I couldn’t see their operating site from the parking lot and since we’re all trying to social distance these days, I didn’t bother searching for them to introduce myself.
While it’s certainly allowed to have two activators running a park at the same time, I really didn’t want to impose and certainly didn’t want to cause any QRM by operating on the same meter band.
I had a “Plan B” in mind in case the park wasn’t accessible. On the west side of South Mountains State Park there was another POTA site: the South Mountains State Game Land (K-6952). I started driving in that direction, then used Google Maps to help me locate the entry road. Turns out, it was an additional 35 minutes of driving! Still, it was a beautiful day so no complaints from me.
The road was typical of game land roads: gravel and washed out in places. I had to ford one creek. My Subaru had no problem doing this, of course. (I actually love off-roading, so secretly I hoped the road would be more challenging!)
About four miles in, I found a pull-off that was big enough for my car and had an ideal tree to hang the antenna. I backed into the site, opened the hatch on the Subaru, and used the trunk/boot as my radio table.
Although there was a fair amount of QRN on 40 meters, now that the G90 has an RF Gain control (with latest firmware v 1.74), I could easily mitigate it.
I worked a number of stations on 40, then decided to move up to 20 meters.
I was very impressed with the response on 20 meters as well. Fading (QSB) was very deep, however, so I kept contacts brief. At times, stations would call me, I’d give them a 59 report, and when they’d reply I could barely hear them (and vise-versa). It took a little patience and good timing, but I believe I worked everyone who called me.
In the end, I had a total of 27 contact in the log with about one hour of operating. Here are my log sheets:
After transmitting steadily for an hour at a full 20 watts, the G90 body was pretty warm to the touch, but it had operated flawlessly.
A great field radio
The G90 is a gem of a transceiver and has some features that make it ideal for field use.
For one thing, I love being able to keep track of my battery voltage on the display:
Also, the G90 has excellent selectivity. On both 40 and 20 meters, at times I could see adjacent stations on the spectrum display that would have bled over and created QRM on less robust receivers.
I also like the ability to control all of the major transceiver functions without having to dive into an embedded menu. Adjusting the filter, RF gain, attenuator, and pre-amp, for example, is super easy.
I love the spectrum display, too. In the field, it’s nice to be able to find an open frequency by simply watching the display for a minute or so before calling QRL or CQ. It also allows me to see when folks are tuning up nearby to make contact with me.
Although I’ve been using a resonant antenna in the field, the G90 has a very capable built-in ATU. Back home, I’ve used it and have been very impressed with its ability to find good matches. Yesterday, for fun, I was even able to get it to tune up the EFT Trail Friendly antenna on 80 meters! I doubt it would be efficient, but the ATU did find a 2:1 match.
The only two features I feel like the G90 is missing are a notch filter (both manual and auto) and a voice keyer. I’m sure a notch filter could be added in a future firmware update (others have been asking for this as well), but I doubt a voice keyer could be added as easily. In truth, the voice keyer is a bit of a luxury, but it’s a feature I use without fail on my KX2 since park and summit activations often require constant CQ calls. Being able to record a CQ and have the radio automatically send it allows the op to drink water, eat lunch, and relax between contacts.