Category Archives: Portable Radio

Guest Post: Shortwave Recordings from Mount Kilimanjaro

Mount Kilimanjaro (Photo: Chris Johnson)

Many thanks to SWLing Post contributor, Chris Johnson, for sharing the following guest post:


Shortwave Recordings from Kilimanjaro

by Chris Johnson

Last month, I took a trip of a lifetime to Tanzania Africa to Climb Mount Kilimanjaro: Africa’s highest point and the world’s highest free standing mountain. It is also known as the “Rooftop of Africa” its summit stands at 19,341 feet or 5895 meters.

With this high elevation I figured that I could pick up a multitude of shortwave signals that I would normally not receive at lower altitudes. So I packed my Sony ICF- SW7600G to capture recordings of various signals, some common, others not so common.

Each night I unpacked my radio and extended the reel-wire antenna and scanned the bands. I came across an assortment of stations that I normally do not hear back home in the USA, but some were quite familiar such as the BBC, Radio Romania, and DW which had Africa as their target. In some cases their broadcast was targeted for Asia.

Below is a map of our trek along the Lemosho route and the camps where we stayed are listed with the recordings and the elevation (in meters) of each camp. The higher we climbed, the signals received were sometimes stronger but the surrounding mountains also limited the reception of others. I did find that the bands were congested with signals from stations that spoke Arabic, Swahili and Chinese, not surprising considering my location. For the purpose of this blog I only included the English speaking stations except for a few.

Unfortunately, the critical weight in our day packs was closely monitored and we could carry only the essentials on our climb from Barafu to the summit so I could not record at the summit of Uhuru Peak. Additionally, our time up there was limited to 15 minutes due to the lack of oxygen at that altitude. Below are selected recordings at each of the camps on the Lemosho route. Enjoy.

Click to enlarge

Mkubwa Camp Elevation 2650 meters 8 January 2017

Mkubwa Camp Elevation 2650 Meters BBC 7445 khz 1840Z 8 January 2017:

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Shira Camp II Elevation 3850 meters 9 January 2017

Shira Camp II Elevation 3850 Meters SW Africa Radio League 4895 Khz 9 January 2017 1645z:

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Shira Camp II Elevation 3850 Meters DW 9820 KHZ 1600z 9 January 2017:

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Shira Camp II Elevation 3850 Meters 1 9 2017 1538z Channel Africa 9625 kHz:

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Shira Camp II Elevation 3850 Meters All India Radio 13695 khz 1835z 9 January 2017:

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Baranco Camp Elevation 3900 meters 10 January 2017

Baranco Camp NBC Zambia Radio 11 January 2017 5915 KHZ 0317z:

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Baranco Camp 3900 Meters Voice Of Nigeria 7255 Khz 1 10 2017 1915z:

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Karanga Camp Elevation 3995 meters 11 January 2017

Karanga Camp Elevation 3995 Meters All India Radio 13695 Khz 11 January 2017 1753 Z:

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Karanga Camp 3995 Meters Voice Of Nigeria 7255 Khz 1812 GMT 11 January 2017:

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Karanga Camp 3995 Meters Channel Africa 9625 Khz 11 January 2017 1735z:

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Barafu Camp Elevation 4673 meters 12 January 2017

Barafu Camp 4673 Meters BBC Asia Target 7465 Khz 1429z:

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Barafu Camp 4673 Meters All India Radio 13695 Khz 1 12 2017 1044 Z:

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Barafu Camp 4673 Meters Radio Romania 15150 Khz 1210 Z:

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Chris: thank you so much for taking the time to write up this guest post and share your excellent recordings and photos. Amazing!

Post readers: I don’t know about you, but I’m inspired and ready to pack my bags and do some shortwave travel!

Click here to check out other posts by Chris.

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The Eton Satellit: my thoughts after 3 weeks of DXing and some recent catches…

Hi there, it’s been about three weeks now since I started DXing with the Eton Satellit and I thought it time to post an updated review, based on my experiences thus far, along with some recent catches. Noting that other radio hobbyists with a strong presence online have been posting neutral to negative reviews on this receiver, I would just like to point out, perhaps rather obviously, that no receiver is perfect and just as importantly, the criteria on which a portable radio is judged will be different from user to user, based on their listening habits. I am almost exclusively engaged in DXing with the Satellit, whilst others will be listening on the broadcast bands on a more casual basis. I know that for some, the ultimate quality and finish of a product is as important as performance and they would make their physical assessment in a very detailed manner. I on the other hand focus mainly on performance and as regards quality, I’m reasonably satisfied if it doesn’t fall apart in my hands, straight out of the box! That actually happened – and it’s sort of where I draw the line 🙂 I guess the point is, I try to respect everyone’s opinion, irrespective as to whether we are in agreement or not and I believe that’s healthy for the future of our hobby.

Ok, back to the Satellit. Firstly, I am able to confirm that in terms of ultimate sensitivity, this portable is very close to my Sony ICF-2001D – one of the most highly regarded portables ever made. The delta in performance between the two is most perceptible on the weakest of fading signals that intermittently deliver audio with the Sony, but can’t be heard on the Eton. On stronger signals, my experience is that either radio might provide the strongest and or highest fidelity audio. I have a series of comparison videos already in the can, which will be uploaded to the Oxford Shortwave Log YouTube channel soon.

In terms of selectivity, the digital bandwidth filters work very well, although I note that even on the narrowest setting (2 kHz) when operating in a crowded band, adjacent channel QRM can occasionally still sound quite pronounced, as compared to my Sony ICF-SW55 or ICF-2001D receivers. As regards synchronous detection, this is more of a hit-and-miss affair. Subscribers to my channel might notice that in nearly all of my reception videos featuring the Eton Satellit, I have not engaged the SYNC. That isn’t to say it doesn’t work, however, even with selectable sidebands, the SYNC mode often appears to increase the overall signal amplitude and noise floor, without positively influencing the SNR. However, it’s interesting to note that signals on the Satellit in AM mode often almost match the ICF-2001D in SYNC mode, in terms of overall SNR. More on that to come.

There are a number of ways to tune the radio; manually using the tuning knob (and this has a decent feel/ resistance to it), direct frequency input which requires pressing the ‘AM’ button to engage, automatic search and access to 700 memory locations, via 100 screen pages. In the real world – and by that I mean ‘my world’ which is most often in the middle of a field, or the woods, all of the above tuning options are as ergonomic as most of my other portables. With regard to SSB reception, there are fast, slow and fine tuning options with a maximum resolution of 10 Hz and this works very well to reproduce natural sounding speech in LSB and USB modes. The tuning speed/fine options are engaged by pressing the tuning knob inwards towards the set – quite a neat idea. With SSB and SYNC there’s always a little pause whilst the electronics engage – a set of chevrons appear on the screen to indicate the receiver is actually doing something. It’s similar to the Sony ICF-SW77 where you effectively toggle between SYNC USB and LSB and wait for lock. Not an issue for me, but it might annoy some, particularly those who have experience with the ICF-2001D, where SYNC engagement is instantaneous, if the signal is of sufficient strength. A small point, but worth making.

 

So, overall, a brilliant little radio that in my opinion is completely worthy of the ‘Satellit’ branding, at least in terms of ultimate performance. As I mentioned previously, one of the most experienced DXers I know, with more than 3 decades of listening to the HF bands and an owner of a number of vintage Satellit receivers noted that the Eton Satellit outperformed them – and by some margin. To further demonstrate this, I have included links to recent reception videos. In particular, I copied three of the regional AIR stations with signal strength and clarity that had never previously been obtained. I also copied HM01, the Cuban Numbers Station for the first time on the 11 metre broadcast band, Sudan and Guinea on the 31 metre broadcast band (a whopping signal from Guinea) and Polski Radio 1 on longwave. I hope you find them interesting. Since featuring the Satellit on my channel, one of two of my subscribers have purchased this radio and thus far have been very happy indeed with it’s performance.

Ultimately, I have to strongly recommend this portable to anyone interested in DXing and in particular those that embark on DXpeditions. I just hope that should you decide to buy one, you receive an example that performs was well as mine. Embedded reception videos and text links follow below, In the mean time and until my next post, I wish you all great DX!


Click here to watch on YouTube

Click here to view on YouTube

Click here to view on YouTube

Click here to view on YouTube

Click here to view on YouTube

Click here to view on YouTube

Click here to view on YouTube

Click here to view on YouTube

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.

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Troy updates the Tecsun PL-880 hidden features reference sheet

Many thanks to SWLing Post contributor, Troy Riedel, who has recently added the hidden bandwidth adjustment feature to Cap Tux’s excellent PL-880 reference sheet.

Here are links to download the updated sheet:

I will also add this to the Complete list of Tecsun PL-880 hidden features page: a place where you can comment if you note any previously unpublished PL-880 hidden features.

Thanks again, Troy!

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A quick view of my shack in Oxford, UK & recent transatlantic medium wave DX

Someone recently described my shack in Oxford as ‘an impressive mess’…. and that really is just about the most positive comment I’ve ever received regarding my listening post! So, my apologies for displaying the mess in public, but in response to having been asked many times by subscribers to Oxford Shortwave Log to ‘share my shack’, here it is, well most of it at least, in all it’s unadulterated glory.

 

The primary reason however for this post is to share my most recent transatlantic medium wave catches using the brilliant Elad FDM DUO and Wellbrook ALA1530 magnetic loop antenna. This excellent combination continues to pull in really nice DX, although not so much very recently as propagation has been fairly rubbish. However, since early to mid December, the dynamic duo have managed to pull in a number of transatlantic medium wave signals, including Radio Rebelde, Cuba on (670 and 710 kHz), KVNS Texas, CHIN Radio, Toronto, WFED Washington DC, WWNN Health and Wealth Radio, Pompano Beach, Florida, and huge signals from WMEX Boston and WWKB Buffalo, New York. Embedded reception videos and text links follow below and in the mean time, I wish you all great DX!


Click to watch on YouTube

Click to watch on YouTube

Click to watch on YouTube

Click to watch on YouTube

Click to watch on YouTube

Click to watch on YouTube

Click to watch on YouTube

Click to watch on YouTube

 

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.

 

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The versatile Kenwood TH-F6A

In reply to my recent post about the Yaesu VX-3R, SWLing Post reader Tha Dood comments:

[The Yaesu VX-3R] is a neat little HT, but the Kenwood TH-F6A is way more versatile.

How? Full 5W on 2m, 222MHz, and 440MHz, and will RX 150KHz to 1.3GHz in AM, FM, FM wide, NBFM, USB, LSB, and CW. All that in a size of a pack of cigs. Yes, it will overload easily, but something that wide banded and this small, I kind of expected that.

However, want to hear what your wireless FM innercom sounds like on 175KHz? You can do that. Want to hear what your 222.1MHz transverter sounds like on SSB? You can do that. Need to tune-in to local AM / FM radio when power goes out? You can do that. Want to listen to CB CH19 truckers gripe about traffic conditions? You can do that. Want to listen to aircraft traffic at an air show? You can do that. You want to monitor 6M 50.125MHz USB to hear when that band opens? You can do that.

No, it doesn’t have D-Star, DMR, Fusion, or even SW’s DRM, but analog-wise this HT is so versatile, what else is out there like it?

Thanks for sharing your thoughts about the TH-F6A!

A couple more things I like about the TH-F6A:

  • it meets MIL-STD 810 C/D/E standards for resistance to vibration, shock, humidity and light rain
  • It has a dedicated number keypad for direct frequency entry (something, sadly, the VX-3R lacks)

I’ll put the TH-F6A on my “wish list” this year and perhaps give it a thorough review. (Perhaps Santa Claus is listening!?)

Here’s a snapshot of TH-F6 pricing at time of posting:

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Dave’s Yaesu VX-3R notes

Many thanks to SWLing Post contributor, Dave Zantow, who shares the following in reply to my recent post about the Yaesu VX-3R:

The VX-3R has a tiny internal ferrite bar for AM/mediumwave broadcast listening.

Yes, it’s indeed true the VX-3R is discontinued and is already pretty much sold out.

Rumors of a VX-4R has been around for years and let’s hope that happens–?? Have a sneaky feeling that IF it come to pass it will include C4FM digital (Yaesu Fusion) ?? I actually preferred the older VX-2R over the 3, but that was me (have reviews on both models on my web page). But my two VX-3R test samples were very early production (lots of QC bugs).

http://webpages.charter.net/n9ewo2/vx2r.html
http://webpages.charter.net/n9ewo2/vx3r.html

As I cover on my news page Yaesu is coming out with a number of new HT’s soon.

Sorry no word of a tiny VX-3R replacement yet. Will of course cover that IF and when it happens on the web page.

http://webpages.charter.net/n9ewo2/news.html

Thank you, Dave!  I’ll certainly consider purchasing the VX-4R (if it comes to fruition) if for no other reason than to compare it with the VX-3R.

Again, I love this little all-in-one micro-sized HT as an Everyday Carry radio. If you’re interested in the VX-3R, your best bet will be to check with radio retailers like Universal Radio and Ham Radio Outlet for used/demo units. Of course, as I’ve mentioned before, you might also follow a VX-3R search on eBay where I recently purchased an open box unit for $119 shipped.

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The Eton Satellit: a poignant recording of ABC Northern Territories & further DX…

Hi there, I’ve just returned from a business trip to Genoa, Italy and took the Eton Satellit with me. Now, I’m sure many of you know from your own experiences that DXing from a noisy hotel room can be just about impossible – and so it was in the main. I did however manage to copy a very nice signal from BBC Radio 5 Live on 693 kHz medium wave and Chaîne 3, from Tipaza, Algeria on 252 kHz – the latter is a much more difficult catch back in the UK. Reception videos for these two signals also follow below and I have to say that given the very noisy environment, this was a pleasing result using the Eton’s internal ferrite antenna. Prior to my trip this week, I recorded a really nice signal from Radio Nacional Brasilia on 11780 kHz and the best signal from North Korea (Voice of Korea KCBS) I’ve ever copied on the 41 metre broadcast band. Both are testament to the Eton Satellit’s performance as an excellent portable reciever per se and it’s hard-core DXing capabilities. Finally, what now feels a very poignant recording, I managed to catch – ABC Northern Territories on 2325, 2485 and 4835 kHz during the same session and on one reception video. Embedded videos and text links to these videos on Oxford Shortwave Log follow below, along with a brief video review of the main functions and features of the Satellit.

With regard to the closure of ABC on shortwave, my full support goes out Senator Nick Xeonophon and his quest to introduce new legislation to force the ABC to reinstate their shortwave transmissions. There, I’ve said it and that’s enough politics for now lol. In the meantime, my plans to test the Eton Satellit against more established DXing portables remain in place and work commitments allowing, this should happen soon. Thanks for reading/watching/listening and I wish you all great DX!


 

Click here to view on YouTube

 

Click here to view on YouTube

 

Click here to view on YouTube

 

Click here to view on YouTube

Click here to view on YouTube

Click here to view on YouTube

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.

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