Category Archives: Manufacturers

The Bonito Boni Whip goes from strength-to-strength: hardcore DXing in compact package

Hi there, subscribers to the Oxford Shortwave Log YouTube channel and regular readers of this excellent website will be aware that I have been using a Bonito Boni whip E-field wideband antenna for a couple of months now. You may have seen my previous post here, detailing some excellent initial DX results achieved with the Boni Whip. What makes this antenna so compelling for a DXer such as myself is simply that it’s so light and compact; I can literally take it anywhere. Currently it lives in a small flight case (see above & below) on the back seat of my car, with either my Sony ICF-SW55 or Eton Satellit, a home-brew battery pack (that literally cost pence) and some peripheral bits and pieces; spare batteries, cables etc. I think it’s probably already clear that if you consider the Boni Whip’s performance as a function of portability and price, it’s out there on its own – I’m not aware of another antenna that can match it. Of course, there are H-field antennas, such as the excellent Wellbrook active loops that will effectively reject QRM, if that’s an issue for the user, but at a significant cost delta.

 

Since my last posting, I have continued to use the Boni Whip regularly on my DXpeditions and upload the reception videos to my YouTube channel. I have been nothing but totally impressed with this antenna, to the point that I’ve actually been surprised by the signals I’ve caught and recorded with it. Recent catches include a number of low-power stations from Brazil, including Radio Bandeirantes – Sao Paolo, Radio Voz Missionaria – Camboriu (on the 49 and 31 metre broadcast bands) and Radio Aparecida. Some of these signals are incredibly difficult to hear in Europe at all, let alone well and yet the ultra-compact Boni-Whip running off AA batteries, coupled to the (equally brilliant) Eton Satellit managed it with aplomb. Other catches include Zambia NBC Radio 1 – Lusaka and a signal from Bangladesh Betar that sounded as if the transmitter was 5 miles down the road!

All-in-all, I’m extremely satisfied with the performance of the Bonito Boni Whip and highly recommend it to those DXers requiring a high-performance, compact antenna, for use at home in electrically quiet environments or on any DXpedition. You certainly won’t be disappointed.

Please find embedded reception videos below and text links that will take you to the Oxford Shortwave Log YouTube channel. Thanks for reading/watching/listening and I wish you all great DX.


Click here to watch on YouTube

Click here to watch on YouTube

Click here to watch on YouTube

Click here to watch on YouTube

Click here to watch on YouTube

Click here 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.

International Crystal Manufacturing Closing Shop

(Source: ARRL via Ed Ganshirt)

International Crystal Manufacturing (ICM) of Oklahoma City has announced that it will be going out of business, probably at the end of May. Royden Freeland Jr., W5EMH, son of the company’s founder, posted a letter this week on the ICM website.

“We will be honoring all orders that we have already taken and will be able to fill a limited amount of new orders dependent upon raw materials available,” Freeland said. “We would like to thank you for your past business. The success of ICM over the previous 66 years has been largely due to its amazing customer base.”

International Crystal produces RF control devices — quartz crystals, oscillators, QCM crystals, filters, TCXOs/VCTCXOs, and precision crystals.[…]

Continue reading at the ARRL…

ICM has also posted the following message on their website:

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.

Tecsun S-8800 update

If you’re considering purchasing the Tecsun S-8800, this is an important post.

I’ve had the S-8800 for about two weeks and had planned to have audio clip comparisons prepared and posted by now. My exceptionally busy schedule has made this difficult–and there a few other complicating factors.

First off, the good news: in terms of sensitivity, selectivity and audio fidelity, I’m very happy with the S-8800. I’ve compared it a number of times with the Tecsun PL-880 and the Sony ICF-SW7600GR and it either holds its own or even has a leg-up on both radios in terms of overall performance. I find that the S-8800’s AGC is more stable than my 1st generation PL-880.

Of course, what will be most telling is what you, dear reader, think of the performance when compared in a blind audio test.

As I mentioned, though, there are complicating factors–It’s not just my schedule which has made the S-8800 review come to a halt.

Birdies…

Yes, birdies. Lots of them.

At first, I thought the noises were due to the fact my mobile phone and Zoom H2N digital recorder were too close to the S-8800.  I dismissed this interference as it didn’t sound like the typical steady tone/carrier birdies I’ve come to loath over the years.

As my testing continued, though, I quickly realized these variable heterodyne and digital hash noises must be internally-generated.

Quite literally, as I was outdoors testing the S-8800 and making this discovery last week, I received a message from SWLing Post contributor, Bertrand Stehle (F6GYY). You might recall, Bertrand provided us with an initial review of his S-8800e (the European version of the S-8800). He also started noticing the birdies and, like me, initially assumed they were due to an external source of RFI.

Bertrand kindly mapped out the extensive list of birdies he found on his S-8800e–he noted a total of 81 birdie/carrier locations:

  • 14 birdies on longwave
  • 4 birdies on mediumwave
  • 63 birdies between 1859 – 29095 kHz

Comparing notes, there are some differences between Bertrand’s S-8800e and my S-8800:

  • Only 50-60% of the birdies on my S-8800 are in the same frequency locations as those mapped by Bertrand on his S-8800e
  • The total number of birdies, however, are likely identical–I find birdies where Bertrand hadn’t noted them

The appearance and intensity of the birdies can vary depending on listening location and the strength of any nearby broadcast signals. I’ve noticed four distinct birdie sounds: a variable carrier, a steady carrier, digital hash, and something I might describe as digital variable noises.

I’ve even noticed some change slightly as you move the radio around.

Here are a couple of examples:

Example on 610 kHz:

Click here to view/listen via YouTube.

Example on 2009.15 kHz:

Click here to view/listen on YouTube.

Moving forward

Obviously, this is a major issue for an enthusiast-grade portable.

I’m sharing all of this information with Anna at Anon-Co. No doubt, she’ll share this information with Tecsun engineering. The last I heard, projected availability of the S-8800 from Anon-Co is late March 2017. Perhaps there will be time for Tecsun to eliminate these birdies by improving internal grounding and/or shielding?

Until the birdie issue is sorted out, I’m not proceeding with audio comparisons or a full review. It goes without saying that, at present, I couldn’t recommend purchasing the S-8800. Sad, because this is otherwise a great radio.

I hope Tecsun can sort this out, though.

I will share any/all updates here on the SWLing Post.

Follow the tags S-8800 Birdies or S-8800.

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.