Tag Archives: Icom IC-705

Guest Post: Dikeside Icom IC-705 RX action

Many thanks to SWLing Post contributor, 13dka, who shares the following guest post:


The IC-705 in action at the dike

by 13dka

When I got the IC-705 in late October 2020, I didn’t get that much chance to enjoy it at the dike: After a couple of initial tests and 2 nightly “FYBO” MW DX sessions in November, a way too long and wet winter struck the German North Sea coast, with nighttime temperatures recovering to 2-digit Celsius figures only in the past few weeks. I took the opportunity to do more experiments with loops, preamps and a phasing unit to improve the RFI-stricken reception at home, so I could at least listen to European hams on 80 and 40m raving about their new 705s and start to write my own musings about that lovely little radio, recently posted here.

SSB DX

June 1st, 202

Finally, acceptable temperatures at night! But they come with a downside: When I connected the vertical around 8:00pm (local time), it was still almost 2 hours before sunset and a lot of thunderstorms in Europe made even 14 MHz very noisy, my hopes for some nice catches were immediately taking a dive. A short scan of the bands brought up nothing special, the only notable thing being the CB and 10m bands being moderately open. I should’ve known better: As soon as the sun splashed into the ocean, grayline propagation worked its magic!

Grayline while receiving Japan, June 1st

As the image probably hints, a couple of Japanese “big guns” produced some nice, comfy signals on the monopole, in addition to the South American and Carribbean stations usually booming in here!

Video: A short collection of ham stations heard around midnight

After midnight I noticed a residue signal of WWV on 20 MHz and still a few EU beacons on 10m. Both incredibly weak with QSB making them disappear but that’s where the 705 really shines – it’s not only picking up these grassroots signals just fine, it shows me that they’re there, or that they were there – a waterfall display keeps on proving that a perceived lack of activity on a band is often pure bad luck – you can tune across an entire band without hearing anything because on each frequency with some activity there’s the other (inaudible to you) station speaking right now, QSB is dipping the signal just when you tune past it…

June 5/6, 2021

That evening the Japanese stations were missing on 20m, I thought I picked one up on 17m, and like so often, the one odd Australian station came in on 20m. After midnight I noticed the 10m beacons again, there were even a few more of them. This time I brought my Belka DSP to the dike so I could compare it with the IC-705, after all the Belka proved to be my most sensitive portable before! The devastating result is likely owed to the fact that the Belka is pretty picky about passive antennas not being matched very well to its input (which is much optimized for the whip) but it picked up diddly squat. If it isn’t a testimony for the sensitivity of the IC-705, it might be one for its aptitude to cope with all sorts of antennas.

Then I tuned into the 10m SSB range and I was veeeery surprised to hear VO1FOG from St. Johns, Canada! This is the first time I heard a transatlantic signal on 10m in a solar minimum ever, but it was with condx only elevated enough for some daytime DX within the EU…and literally in the middle of the night! The signal was very unstable though, he later switched to the 12m band which worked better. Back to what I said about the waterfall display above: Without it, I could’ve missed this station with a pretty high probability simply because I didn’t expect any activity up there, so I wouldn’t have tuned across that band for very long, and without seeing the signal while the VFO is already somewhere else…

I also heard another new country (Ecuador) in SSB, the usual collection of Carribbean islands and some participants of the “Museum Ships Weekend Event” including NI6IW, which is the vanity call of the history-charged USS Midway in San Diego. The “Japanese” station JW4GUA turned out to be on Svalbard island, with the main town Longyearbyen being the northernmost town in the world, only 650 miles from the north pole, and I don’t hear stations from there very often!

Video: June 5th

June 10/11

The past days saw the SFI passing 80 and 11/10m becoming quite busy. By the time I parked the car at the dike, SFI had dropped to 73. That evening the grayline confined itself to colorizing the horizon. 10m and 11m were still full of signals, I could still hear 2 British chaps chatting on 27 MHz at 3:00 in the morning, but nothing really “extraordinary” was coming in – the one odd VK, more Carribbean islands, one Argentinian but not much from other parts of South America, it never gets boring how this all defies predictability. But as always I heard most of the North American continent, not booming in much that night but I followed 2 POTA activations for a while, which are usually at most 100W stations working a lot of other “barefoot” stations and I heard almost all of them. In the morning grayline window for the west coast I finally got one solid signal from Oregon. All my radio life, the US west coast has been a tough target for some reason.

The signal had that typical “over the pole” sound, a relatively quick phasing imprinted into the signal by the charged particles converging over the pole, causing northern lights in the region and that exiting feeling when observing really big, planetary scale physics in realtime, over here at my listening post. The magic of shortwave. 🙂

Broadcast bands

After the post touting the IC-705 as a SWL/BCL receiver, demonstrating it on the broadcast bands seems mandatory to me. However, capturing cool BC DX is a very different business than waiting on the ham bands for interesting stations coming and going and collecting spectacular (-ish) results in a single night this way. Broadcast schedules have to be studied, current “hardcore” DX targets identified… and I have to admit that I’m out of that loop currently. Just turning the knob and recording whatever is populating the bands, and doing that between 21-22:00 UTC, when all programs are directed towards anywhere except Europe turned out to yield pretty boring results. Here it goes anyway:

Video: Browsing the most important BC bands

CONDX and antenna:

The antenna I was using in these videos was a simple wire running up a 10m/33′ fiberglass pole, forming a very archetypical “monopole” or “Marconi” antenna, just a vertical wire, no counterpoise, no matching network, no un-un, transformer or flux capacitor. I planned on using this to make some experiments about the practical benefits (for reception) of all the components it’s now lacking, but it already demonstrates that the beauty of receive-only antennas is that they often don’t require crazy efforts: On the conductive soil at the dike it works pretty well (good signals all over the bands and sufficiently low takeoff angle) as it is.

The evening and the 2 full nights at the dike once again had condx that nobody would phone home about:

SFI, A and 3-hourly K-indices while I was at the dike.

It’s not that these numbers always fully explain actual and current condx but decreasing SFI and rising A/K-indices mean low expectations. Despite the condx still characterized by the solar minimum that way, the location is always delivering proper DX for my radios. Unless stormy or severely unsettled geomagnetic conditions give DX a day off, there’s almost always something to take home, be it a new country, a rare island, unexpectedly loud signals from the other end of the planet at unusual times and/or on unusual bands or other ionospheric mysteries.

Speaking of location: These videos demonstrate the properties of that listening post as much as the capability of the IC-705 to harvest them, and they don’t put that into relation to other radios, so you have to rely on my word on this: Compared to what I brought to that place so far it’s jaw-droppingly good, but a big contributor to that is that only few of my other radios can really cope with the antennas I like to use out there in first place. A radio like the IC-705 is sure making the most out of location and antenna, but it’s not the key component because a low-noise location is everything, it always was and it is today more than ever. Without it, radios and antennas can’t really play their jokers.

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The Icom IC-705: Is this really a new holy grail SWL/BCL receiver?

Many thanks to SWLing Post contributor, 13dka, who shares the following guest post:


The Icom IC-705: Is this really a new holy grail SWL/BCL receiver?

by 13dka

When Thomas got wind of its development in 2019 he immediately asked “could the Icom IC-705 be a shortwave listeners holy grail receiver?”. I usually wince a little when I hear “holy grail” because it means very different things to different people, it’s also a moving target with many people aiming at the spot where it was decades ago. But Thomas certainly had a very level-headed assembly of technical performance, quality and practicality requirements in mind when he used that term, and I thought he might be onto something!

There are some excellent, trustworthy reviews of the IC-705 out there. The following is not one of them, I just want to share an opinionated breakdown on why I think this is an interesting radio for SWLs/BCLs indeed, also deliberately ignoring that it’s actually a transceiver.

Jumping shop

While the era of superhet/DSP-supported tabletop holy grails ended with the discontinuation and sell-off of the last survivors more than a decade ago, powerful PC-based SDR black boxes were taking over the mid-range segment and it became very slim pickings for standalone SWL receivers: Thomas just recently summed up the remaining options here.

Between the steady supply of inexpensive yet serviceable Chinese portables, upgraded with a least-cost version of DSP technology, and the remnants of the high end sector there’s very little left to put on the wish list for Santa – that doesn’t need to be paired with a computer that is.

No surprise that SWLs/BCLs in search of new quality toys with tangible controls are taking a squint over the fence to the ham transceiver market: Hams are still being served the best and the latest in radio technology in all shapes and sizes, and even entry-level rigs usually come with feature-rich general coverage receivers. But transceivers never had SWLs much in their focus in the past decades, and particularly not BCLs: Frontend adaptation, additional AM filters, switches and functions would’ve meant increasing costs and so transceivers were never perfected for that purpose. DSP and SDR technology allowed for improvements on that without actually adding (much) hardware and so some interesting alternatives surfaced in the past years, but most of them still come with little downers, at least for BCLs.

Continue reading

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Icom IC-7300 and IC-705 SWL frequency files?

Many thanks to SWLing Post contributor, Dave, who writes asking if any Icom IC-705 or IC-7300 owners have created a database of SWL frequencies that could be imported into memory. I think this is a great idea as both transceivers are quite capable shortwave listening receivers.

If you have a database file and would like to share it, please comment!

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Giuseppe compares the Icom IC-R8600 with the IC-705

Many thanks to SWLing Post contributor, Giuseppe Fisoni, who reached out a few weeks ago noting that he was very impressed with the Icom IC-705‘s receiver performance even compared with his Icom IC-R8600 wideband receiver.

I asked Giuseppe if he would perhaps write up a short informal report to share here on the SWLing Post. He just sent me the following notes:


Hi Thomas,

[…]Consider this more of a qualitative comparison – just S meter readings with a few brief notes.

My overall impression is that the IC-705 is a fantastic SW receiver, as you’ve already made clear on all your posts. In most cases, it holds up well against the IC-R8600, and even performs better in some cases. I have some notes below, which you are welcome to share with your readers if you’d like. For a while I also had two IC-705s in my hands, so I even got to test “replicas” with the 705 (there was no major difference but it was still fun to do).

A few things about my comparisons:
1. All tests were done using a 50’ long wire antenna (house to tree) with an un-un.
2. The IC-R8600 was operated using an ICOM AC adaptor (creating a disadvantage), while the IC-705 was run on battery. However, I tried to only compare stations where the noise floors were comparable and the 8600 didn’t have any RFI.
3. I tried my best to normalize the RF gains on each radio, but this became somewhat difficult. I’m not sure if they are on the same scale (i.e. does 80% RF gain mean the same thing on both radios?). Also, I very quickly noticed that turning up the RF gain on the 8600 only increased the S meter reading and apparent noise floor on the waterfall spectrum, but it did not actually make the audible signal or noise audibly stronger. This was especially true from 50% and up on the RF gain. In contrast, the RF gain on the 705 operated as you’d expect – the more you turned it up, the higher the gain on the signal (and noise), evenly across 0-100%.

Test #1

2021.02.08
0211 UTC
3,330 kHz CHU

IC-705: weak signal but audible, S6
IC-R8600: no signal!

Winner: clearly 705. Shocked the 8600 couldn’t pick up CHU!

Test #2

2021.02.08
0219 UTC
3,215 kHz WWCR Nashville

IC-705: S9+20
IC-R8600: S9+20 to S9+40.

Winner: Tie – although the 8600 had a stronger signal on the S meter, it didn’t really sound any better than the S9+20 on the 705.

Test #3

2021.02.18
1958 UTC
9,690 kHz Radio Espana Exterior

IC-705: S9 to S9+10
IC-R8600: S9+20

Winner: Another tie – the stronger signal didn’t make much of a difference. The 8600 only sounded slightly better because of its speaker, not the receiver, so I’m calling it a tie.

Test #4

2021.02.18
2001 UTC
10,000 kHZ WWV

IC-705: S3, very weak
IC-R8600: S7 to S9 but high atmospheric noise

Winner: 8600

Test #5

2021.02.18
2006 UTC
11,820 kHz Radio Riyadh

IC-705: S1, barely detectable
IC-R8600: S5 to S7, intelligibility unstable

Winner: 8600

Test #6

2021.02.18
2012 UTC
15,000 kHz WWV

IC-705: S3 to S5
IC-R8600: S9, slightly clearer and crisper tones

Winner: 8600, but not by much

Test #7

2021.02.18
2015 UTC
15,580 kHz VOA Selebi-Phikwe, Botswana

IC-705: S1 to S3, in and out with fading
IC-R8600: S9, much more stable signal

Winner: 8600

Test #8

2021.02.19
00016 UTC
7,780 kHz WRMI Slovakia International

IC-705: S9 solid, stable signal
IC-R8600: S9, same

Winner: Tie

Test #8

2021.02.18
0022 UTC
6,604 kHz USB Gander VOLMET

IC-705: S5 to S7
IC-R8600: S9

Winner: Tie, no real difference

Test #9

2021.04.09
2335 UTC
11,940 kHz Radio Exterior Espana

IC-705: S5 to S9 solid signal with some fading
IC-R8600: S9

Winner: Tie – no obvious difference

Test #10

2344 UTC
9,420 kHz Helliniki Radiophonia, Greece

IC-705: S9 +20. Excellent signal
IC-R8600: S9+ 20-30. Excellent signal

Winner: Again, a tie. But the wonderful Greek music reminds you again how much better the speaker is on the 8600.

Overall

Here’s the important thing: even though in most cases the IC-R8600 pulled in a much higher S meter reading, it often didn’t matter unless the difference between the two radios was a lot. In cases where it mattered, I could have turned up the RF gain or preamp on the 705 to match the signal on the 8600 (unless it was really weak on the 705), but I was trying to avoid that for the sake of having some baseline for comparison. How comparable are RF gain levels across ICOM radios?

IC-705 pros/cons take aways for me:

    • High level of portability and ability to operate on battery
    • Has desktop-like features and controls
    • Ability to use tripod or custom stand offers custom ergonomics (I found it easier to look at and interact with than the 8600, which has a lower angle of display)
    • All-in-one package: SWR + HF/VHF/UHF transceiver
    • Built-in audio speaker leaves a lot to be desired, definitely not desktop receiver audio quality
    • No stereo headphone jack

My verdict

I am quite impressed with the IC-705! I am looking to downsize my radios and these comparisons have convinced me that the 705 can really check a lot of boxes for what I am looking for in a radio. I think it really offers a lot in a small footprint, which I find very impressive. So, since I have no use in monitoring anything above UHF, I will be looking to sell the IC-R8600, even though it is also a very great radio.

All the best,
Giuseppe


Fascinating report, Giuseppe! Thank you so much for taking the time to perform these comparisons and sharing them with us.

Like you, I believe the IC-705 could replace a number of my other radios. I originally purchased it for my review and planned to sell it after, but quickly realized there’s no way I’m selling it. In fact, it could convince me to sell other radios it effectively makes redundant.

For SWLs who have limited space for a listening post in their home and who like to take their radio to the field, the IC-705 is a no-brainer. It’s an investment at $1,300 US, but I believe it’s a quality rig and certainly an outstanding, feature-packed unit.

I’ve found that the IC-705’s performance on HF and Mediumwave is truly DX-grade. I imagine its FM performance is as well.

It’s funny that you mention the IC-705 front-facing speaker as a con, because I often tout it as a pro. Thing is, I’m most often comparing the IC-705 with other field-portable QRP transceivers. Compared with them, the IC-705 speaker is amazing.  But compared to the IC-R8600 or, say, a Drake R8B or SW8? Yeah, I agree with you 100%–it’s just not in the same league with those tabletop receivers. Of course, you can port out the audio to a better speaker if needed. (Indeed, the IC-705 even has built-in Bluetooth!)

Thanks again for sharing your notes with us, Giuseppe!

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Lemons into Lemonade: Nick is taking advantage of Texas power outage to play radio

Many thanks to SWLing Post contributor, Nick Booras, who writes:

I am stuck in the house in Texas, bored and with no power. So I decided to make a couple videos with my phone. One nice thing about a power outage… no RFI [Radio Frequency Interference].

This Icom 705 is an awesome radio! Perhaps your viewers might like these.

Thank you for sharing these, Nick! Yes, as we’ve noted before, power outages are an ideal time to play radio and indulge in a low-noise environment! And I agree with you: the IC-705 is a superb shortwave broadcast receiver.

I hope our readers in Texas will have power restored soon–this has been a rough week for many.

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Armed with loops, fences, and an Icom IC-705, 13dka battles transatlantic MW DX

Many thanks to SWLing Post contributor, 13dka, who shares the following guest post:


Dipping my toes into transatlantic MW DX

by 13dka

Most of my SWLing life I wanted to dig into MW DX but never managed to make that really happen for some reason. Then last November, I fetched my first transatlantic station while I wasn’t even trying, in a rather surprising setting:

I have to explain that my home and neighborhood got so infested with a multitude of QRM sources that I did not put my outdoor antennas back up after a storm blew them out of the trees in winter 2018/19. I just used an ML-200 loop indoors, which also has to put up with my own additional QRM sources in my den, consisting of 3 computers running 24/7 and a couple of switching power supplies, a TV, LED lighting… allowing for very basic reception as long as my neighbors don’t watch TV or use the internet. On top of that, medium wave is badly beaten by a mowing robot’s boundary wire here, making reception on several portions of the band completely impossible.

I never expected receiving any US stations on MW in that noise, but I couldn’t sleep that night and scanned the bands a bit with the IC-705 hooked up to my new YouLoop hanging over my bed for testing. I had seen the characteristic transatlantic carriers on MW many times before on my SDRs, but for some reason I never picked up anything intelligible on them in any winter season, now a lot of these carriers were there again but on 1130 there was actually modulation and it wasn’t the only station!

Small bedside loop: SWL’s dreamcatcher!

Bloomberg Radio 1130 came in with almost enjoyable quality at times, but Bloomberg is also kind of a surefire station for MW DX over here. I also picked up a station on 1120 and another one on 880 which was briefly so strong that it surmounted the strong interference from BBC Radio Wales on 882 kHz. 1120 was confirmed the next night to be KMOX in St. Louis, 880 kHz was *not* KCBS in NY – I checked that immediately, I have a KiwiSDR set to that frequency booknarked on my cellphone in case I have a craving for the 1-877-Kars-4-Kids commercial. Powerwise likely candidates for that would be CHQT (50kW) in Edmonton, CKLQ (10kW) in Manitoba or KRVN in Nebraska (50kW class B station) but this may be hard to verify due to the dominance of the BBC on that frequency. Anyway, KMOX wasn’t a bad catch for a small, passive indoor loop, that’s 7,150km or 4,440 miles from here!

Bloomberg Radio on the YouLoop:

Here’s KMOX:

This was A) quite encouraging for nighttime DXpeditions to the dike (brrr…cold!), B) a testimony for the YouLoop’s good performance on MW and C) a testimony for the IC-705 having pretty much all one could wish for in a capable MW DX radio – notch filter, passband tuning on AM, stable ECSS, waterfall display to detect stations and last but not least loads of sensitivity to make the most out of low-output antennas down on MW.

Going to the dike

Of course I just had to put on some long johns and drive to the dike around 3:00am local a few nights later, to try my luck with my ML-200 (lacking a better idea) with an 80cm diameter rigid loop. I was mildly surprised that reception wasn’t that much better than with the YouLoop at home. The overall yield wasn’t exactly outstanding compared to other people’s logs but a lot of stations were hidden in the frequency ranges that are submerged in QRM at home. My log has US/Canadian stations on 20+ different frequencies, unfortunately most of them UNID. Here are some recordings I made that night, hunting for unambiguous station IDs from North American broadcasters:

ML-200, Nov. 16th, 2020

1130 Bloomberg Radio on the ML-200:

Presumedly WABC 770 in NYC: In MW DX, never think you ID’d something properly just because you heard a city name and the frequency has a clear-channel station located there!

This is more unambiguously 1010 WINS in NYC (with a twist described later)

1030 WBZ Boston, MA – the first part of the clip is showing how it sounds when the signal is good, the second part demonstrates how reliably propagation is taking a rest while a station identifies itself.

The grandpa of AM broadcasting, 1020 KDKA:

Moving away from the east coast, this is WHAS 840 in Louisville, KY:

760 WJR Detroit, MI

Here’s a tough one, the religious content I heard with a great signal before doesn’t warrant a proper ID alone, and as per usual the station ID’d while fading out. I could ID this only with a set of big, closed headphones, which is a mandatory accessory for all extreme DX (CHRB 1140 in High River, Alberta):

Of course I was occasionally checking other bands too and got some serviceable signals from Brazil:

Clube do Para on 4885 kHz:

VOA Pinheiro from Belem, Brazil on 4960:

Going to another dike, this time it’s personal!

Time to try something completely different: A ~1,000m/3,000′ straight (and preliminary considered continuos) stretch of mesh fence along the dike heading ~345° (NNW), pointing roughly to mid-/western mainland North America. I had briefly tried its aptitude for being a “natural” Beverage antenna before – with mixed but encouraging results: Due to the fence not being terminated at the far end it may be kind of bidirectional, and according to my latest insights a Beverage style antenna doesn’t work well over very good (conductive) ground, probably even less so close (maybe 200′) to the ocean. Also, I forgot to pack the 9:1 balun I prepared for that purpose, so I just had some wire with alligator clip to connect the fence to the radio. Boo.

Accordingly, what I saw on the waterfall display didn’t look so much different than what I got from the ML-200 before – there were clearly more stations visible (as a carrier line on the waterfall) but nothing was really booming in. However, I managed to log a few more stations, such as WRKO in Boston and (the highlight of the night) 1650 KCNZ “The Fan” in Cedar Falls, IA which has only 1kW to boot at night to make the 6,940 km/4,312 mi to my dike. This may or may not be an indication that the “Beverage sheep fence” isn’t so bad after all!

“Fence”- reception, Nov. 18th, 2020:

VOCM 590, St. Johns, New Foundland, Canada’s easternmost blowtorch is like Bloomberg an indicator station for European MW DXers:

680 WRKO, Boston, MA:

1040 kHz, presumed to be WHO, Des Moines, IA: No ID, only a matching frequency and a commercial for “Jethro BBQ”, which has locations only in and around Des Moines:

Here’s 1650 KCNZ, Cedar Falls, IA with 1KW:

To put that into some relation, this is what 1KW sounds like on a very quiet 40m band in SSB (K1KW from Massachusetts on 7156 kHz producing a 9+20 signal that morning on the “Fence antenna”):

BTW, interesting bycatch – not the first time I caught WWV and WWVH on the same frequency but that morning was the first time I could hear both on 5 MHz:

 

So where have you been all my life, American AM stations?

A question remains – how could I miss the existence of these stations forever, then in modern SDR times see the carriers on the spectrum scope and still miss the modulation on these carriers? Or the other way around – why did I hear them now?

To begin with, when I started out with the radio hobby many decades ago, the reason for the occasional whine and whistle on some stations (particularly past midnight) wasn’t obvious to me: The last thing I suspected was that this could be interference from across the pond, with the pitch of the whine (or “het”) having a direct relation to the 9kHz vs 10kHz difference in channel spacing. Of course these stations were there all my life! Then, with just some regular radio you’d have to pick one of very few frequencies where a strong station from across the pond coincides with a nice silent gap in the local channel allocation. But until this millennium, European medium waves had no such gaps and a lot more local blowtorches.

Since that time many MW stations were turned off and demolished and whole countries abandoned MW here in Europe, so we’re in a much better spot now for transatlantic DX. Unfortunately the opposite is true for listeners on the left side of the pond, you guys still have a very crowded AM band but less potential DX targets in Europe. On the bright side, the remaining European stations are often not restricted to 50kW and you have another ocean with very distant and rewarding DX stations that are very, very hard to catch in Europe!

Wrong time, wrong place

Another bunch of factors are – of course – propagation, season and location/latitude. The MW DX season is roughly fall to spring nights (when TX and RX are in the dark) with a period of increased absorption in the middle (the “mid-winter anomaly”), signals are potentially stronger at lower latitudes and weaker at higher ones but the distance to the noisy equator and a lack of stations interfering from the N can be a huge advantage for using over-the-pole paths on higher latitudes. The big showstopper is solar activity: Good condx on shortwave can be rather bad for skywave propagation on medium wave, so a solar minimum is the long-term hotspot for (transatlantic) medium wave DX.

I’m glad that I learned how intense that relationship is right away: When I discovered that Bloomberg is pretty good on my indoor YouLoop at home, condx were pretty down with SFI in the low 70s and very little excitement of the auroral zones. 2 weeks later the SFI was only slightly higher in the 80s-100, many of the carriers were missing on the waterfall and Bloomberg could be heard only in much bigger intervals.

Speaking of which – even with favorable condx, a proper radio and a half-proper antenna, patience is key! In my very fresh experience the fading cycles on those over-the-pond signals are long! So far I have seen everything fading in and out over the course of a few minutes to half hours or more, with less favorable conditions or a worse antenna it may take much longer until it sticks out of the noise for a while. So you may have to park on a frequency for a long time to not miss the station coming up so much that it becomes readable at the right time to ID it. Multiple DX stations on the same channel can make identification difficult unless one station really dominates the other and that all may take hours or days until it happens. Here’s a lucky example on 1010 kHz:

Lucky because in this case one station is already known – it’s WINS but it often has another station underneath and I was curious what that station might be. On this occasion, the station ID’d itself as “Newstalk 1010” (which is CFRB in Toronto, 0:05 in the clip) just in a short talking break on WINS. Again, this can’t be heard on my laptop speakers but on headphones:

Waiting for a moment like this to happen isn’t exactly fun, that’s why spectrum recordings are incredibly valuable particularly on MW – you won’t miss a possible station ID on frequency A because you were listening to frequency B, but a part of me thinks this is taking a bit of the challenge away, like blast fishing. 🙂

Fancy equipment


The IC-705 fits snuggly-wuggly into my steering wheel for extra-comfy tuning!

Fun fact: While Bloomberg NY on 1130 was (kind of) booming in at home so I knew for sure it was there, I could hear it even on the XHDAtA D-808 with its tiny loopstick and only average sensitivity on the AM band! So for “easy”, loud and undisturbed stations some persistence and a simple portable radio may suffice to catch some transatlantic DX. But most of the stations will be hit by interference from closer stations, then the radio needs at least to be capable of stable sideband reception, with a corresponding narrow filter and proper suppression of the unwanted sideband – luckily this isn’t an unusual feature on inexpensive portables anymore. So if you already have an SSB capable radio that’s all you need to address the most common issue with transatlantic DX, US and EU stations being too close in frequency. Of course passband tuning and notch filters are most helpful assets in a radio for this, rescuing reception in even more severe interference situations and the spectrum/waterfall display on an SDR helps a lot with finding the carriers and SDRs also have all the nice tools but with some more patience you may find stations with many conventional receivers.

Of course antennas are the crucial component again: If conditions are excellent, even a loopstick may bring the first stations into the log, some small magnetic (wideband) loop could dig up some more stations, from there it’s quickly going a bit esoteric – AFAIK there are no commercial offers for multi-turn (tuned) loop antennas nor are FSL antennas easy to come by, you can’t buy EWE et al antennas either and Beverage antennas for MW are quite a project – not that hard to get a kilometer of wire and there are even kits to buy but it could be much harder to find a place to roll it out in the direction you’re interested in, in an area that doesn’t have electric fences or high voltage power lines within a radius of at least several miles. I guess once you become addicted, you’ll stop asking yourself whether or not it’s worth the effort.

So it’s pretty clear what happened: For catching TA DX stations, the ionospheric conditions must be good, to receive that with a loopstick they must be ideal and that’s what they are currently – it’s winter in what’s still a deep solar minimum and on top of that, some of my radios are very apt for MX DX and I was lucky to listen on the right time on the right frequency. When I started writing this article, my enthusiastic bottom line was supposed to be something like “MW DX isn’t rocket science”, which is certainly true but I think my history with it shows that it’s not exactly trivial either. Maybe that’s why it’s so rewarding, it sure is some hardcore DX challenge that complements the shortwave activity quite nicely and may give you something to look forward to when solar activity is down.

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The Icom IC-705 is about to achieve ‘Holy Grail’ status

In 2019, shortly after Icom announced the Icom IC-705, I speculated that this rig might be a contender for “Holy Grail” status.

I must admit…the more I use this radio, the more I love it. It is a proper Swiss Army Knife of a radio. Even though I’ve owned and operated it for a few months, I still haven’t explored all that it can do, and I keep finding features I love.

Case in point

Yesterday, I upgraded my IC-705’s firmware. Unlike other devices I’ve been evaluating recently, IC-705 firmware updates aren’t fixing numerous bugs and issues, rather they’re adding more functionality.

After completing the upgrade, I hooked the ‘705 up to my main antenna and worked a few Parks On The Air (POTA) stations off of the supplied battery pack (instead of a power supply). While I worked on other projects in the shack, I checked the POTA spots and work a few stations with a whopping 5 watts of output power.

After a couple hours on the air (mostly listening), the internal battery pack still had a good 60-70% capacity.

At one point, I tried a little daytime mediumwave DXing and cruised past 630 kHz which some of you might already know is the home of one of my favorite hometown radio stations, WAIZ.

From my home, WAIZ is a tough catch, so it was weak, but I could hear it.

This reminded me that I had made a recording of WAIZ with the IC-705 when in my hometown earlier this month.

Normally, I pull the MicroSD card out of the IC-705–which almost requires needle nose pliers and is one of my few complaints about this rig–and view the files on my PC or MacBook, but I was curious if perhaps the IC-705 software had a built-in file display.

Of course it does!

Simply press the MENU button, then the RECORD button on the touch screen, and you’ll see the following selections:

Press “Play Files” and you then see a list of folders organized by date:

Click on a folder and you’ll see a list of recordings made that day:

Here’s the genius bit for those of us who like to archive broadcast recordings…the IC-705 embeds the following meta data:

  • Date of recording
  • Start time of recording
  • Recording length
  • Frequency
  • Mode

These are some of the most important pieces of information I use to index my audio recordings and the IC-705 does this automatically.  In fact, if you allow the IC-705 to gather its time information from the internal GPS, the time stamp will be incredibly accurate.

The only thing I add to the file name after export is the broadcaster name/station callsign.

If that wasn’t enough, if you touch one of the recording files, the IC-705 will open it in an audio player:

The built-in player displays the meta data, and even includes a number of controls like fast-forward, rewind, skip to next or previous file. and pause.

I’m sure this is the same audio player found in the IC-7300, IC-R8600 and other late-model Icom SDR rigs. But in a portable battery powered transceiver? This is a genius feature.

As I type this post I’m listening to the audio from the WAIZ file shown above. I can imagine when I’m able to travel again (post-pandemic), how useful this will for one-bag air travel.

(If you’d like to listen to WAIZ, check out these ‘705 recordings.)

Not only is the IC-705 a QRP transceiver and wideband multi-mode general coverage receiver, but it’s a recorder and audio player with a built-in front-facing speaker. I can set this transceiver at my hotel bedside and listen to recordings I made in the field earlier that day or week.

Keep in mind that the IC-705 is an expensive radio–certainly one of the most pricey QRP radios ever produced at $1,300 US (at time of posting although I’m sure we’ll start seeing lower pricing this year). But if you’re an SWL and ham, you’ll find the IC-705 is the most versatile portable transceiver on the market. If you’re an SWL only, you can disable the transmit on the IC-705 and essentially have a portable battery-powered SDR receiver with built-in audio recording and playback with color touch screen spectrum and waterfall display.

Despite the price, this is Holy Grail territory in my book.

Icom IC-705 Review

If you subscribe to The Spectrum Monitor magazine, you’ll be able to read my (4,000 word!) review of the IC-705 in the upcoming February 2021 issue.

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