Tag Archives: Sony ICF-2010

Sony ICF-SW77: recent DX & comparing performance with the ICF-SW55 & Tecsun PL-310ET

Some of you might remember the extensive tests I conducted last August, comparing this great portable receiver against the model it was introduced to replace – and arguably one of the best-ever portables – the Sony ICF-2001D/ICF-2010. I conducted a back-to-back series of comparison tests at the very quiet wood in Oxfordshire I use for my DX’peditions, using the same antenna for both recievers – the excellent Wellbrook ALA1530 active loop. In total, I made fourteen reception videos comparing the ICF-2001D and ICF-SW77 and posted them to my Oxford Shortwave Log YouTube channel. Both receivers performed very well, delivering excellent reception on the Tropical Band and elsewhere on the shortwave spectrum, however, the ICF-2001D proved to be the clear winner, with what proved to be far superior synchronous detection.

But that wasn’t the end of the road for my ICF-SW77. It remains a very capable receiver (one of my all-time favourite portables) and one which I continue to use regularly. However, every now and then, it surprises me with something exceptional. Since conducting the tests against the ICF-2001D, the SW77 has brought in my best-ever indoor reception of Radio Verdad, Guatemala on 4054.8 kHz….and when I say best-ever, I really do mean it; the audio was significantly clearer than anything I had copied previously at home with the Elad. More recently, I copied Zambia NBC Radio 1 on 5915 kHz on a DX’pedition with a far superior signal to anything I’d previously heard, with any other reciever, including the ICF-2001D and the Elad FDM DUO. Some of this of course is down to short-term conditions of propagation, however, the SW77 continues to prove why it has such a loyal following and continues to command premium prices on eBay. Text links and embedded videos to both reception videos on Oxford Shortwave Log follow below:


Further to these recent catches, I promised some of my YouTube subscribers that I would conduct another, similar test with the ICF-SW77, but against it’s cheaper ‘sibling’ the ICF-SW55. A review at the time of the ICF-SW55’s introduction concluded that the price premium of the ICF-SW77 may not be justified since the performance of the two receivers was very similar, despite the SW55 lacking synchronous detection. As someone who has extensive experience with the SW55 out in the field – it was my mainstay DXpedition receiver for more than a year – I was just as interested as my subscribers in how these two vintage Sonys would measure up against each other. The lineage is all very obvious from their respective industrial designs, but the lack of Synchronous detection on the SW55 might have been the one element of functionality resulting in poorer performance, particularly in challenging band conditions and in the presence of adjacent channel QRM etc. To mix things up a little, I have also thrown the brilliant Tecsun PL-310ET into this test. Such a sensitive and selective receiver for less than £40, it has provided more surprises with regard to it’s performance than just about any other radio I’ve owned. How would the Tecsun compare to these two vintage, but high-end Sony portables? Stay tuned to find out! Two reception videos follow, using signals from ABC Northern Territories (4835 kHz) and Radio Mali (9350 kHz), with more to follow on Oxford Shortwave Log and a further posting on swling.com/blog. Thanks for watching/reading/listening.

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.

Guest Post: Backpack-Shack radio listening

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


Illustration 1: Main contents

Backpack-Shack radio listening

by TomL

So, the Car Shack idea was good, but I felt constrained by lack of access to better locations to listen to shortwave radio. I took most of the original equipment and stuffed it into a photo backpack I was not using and now I have a portable listening station. Now I can listen in my car or in the field fairly easily.

LowePro350AW – The backpack has three main compartments, integrated carry handles, nice padded waist belt, and a couple of ways to stick a 3/4-inch PVC pipe into external tripod or water bottle pouches. My homemade 14-inch loop antenna with Wellbrook amplifier is light enough to be attached to a 3-foot PVC pipe attached to the backpack. The Palstar preselector (active antenna) and KIWA BCB filter are still part of the portable setup. I added a Daiwa two-position switch to cut out the KIWA BCB filter so I can listen to mediumwave. Power for all these devices are Powerex AA’s for the Sony 2010 and two 12V power packs made from three sets of XTAR 14500 lithium batteries + one dummy AA. I have mounted the electronics and wires using large cable tie-wraps to a 14×10 inch polypropylene kitchen cutting board (sturdy and easy to drill through).

Illustration 2: The electronics board fits neatly into the laptop section of the backpack

Illustration 3: Backpack Shack in operation

Here are some recordings from two test outings around 2100-2200 hours UTC. A local county park (“Forest Preserve”) purposely has few man-made structures (just a trail, picnic shelter made of wood and an outhouse). It is about 15 minutes drive from where I live; the reception is notably clear of local noise. There is an occasional wide-band noise that comes and goes but nothing else I can identify as detrimental noise and it is mostly just a nuisance.

Cuban Numbers station on 11635 kHz:

Click here to download.

VOA from Santa Maria di Galeria, Italy in French on 12075 kHz:

Click here to download.

All India Radio on 11670 kHz:

Click here to download.

BBC Ascension I. on 11810 kHz:

Click here to download.

R. Guinea with music and announcer on 9650 kHz:

Click here to download.

A big downside of the Forest Preserve, like most parks now, is that it is ONLY open from sunrise to sunset and strictly enforced. So, my personal quest for nighttime access to an RF-quiet location continues (I guess I will have to buy/build my own)! It begs for an even more portable setup than this one. That means buying an SDR (with control via a tablet), miniaturizing the antenna, and modifying the lithium power packs to fit in a very small backpack or fanny pack.

If I can miniaturize it enough, I will be able to use common parts of this setup at home, in the car, and at field locations for either mediumwave or shortwave listening. I could then pre-install the unique parts in those situations and just plug-and-play, so-to-speak!

It could be that the continuing tech wave of small, powerful, wide-band equipment is causing a revolution in general. A type of radio revival may be at hand where regional radio starts to take a foothold, catering to a multi-state area and not just to one local metro area – with its one-city mindset and control (Do I really care that the Big City is installing a downtown-only, 12 million dollar bike and jogging connection + hearing endless whining about how bankrupt pensions are putting that County at risk when I never go there and don’t care to?). Portable wide-band radios allow for hours of listening to various types of broadcasts!

An example could be to use digital broadcasts over longwave (somewhere from 150 kHz-500 kHz) which allows ground wave signals to travel hundreds of miles reliably during the day or night without depending on variable skywave propagation. Digital would enhance the listener experience in stereo. It would probably need a narrower type of digital modulation since the current “HD Radio” standard is really too wide and splatters everything at adjacent frequencies. Pure wishful thinking but the technology is available to make something NEW happen!!

Cheers from NoiZey Illinoiz,
TomL


Thank you, Tom! You certainly have the right idea: taking your radio to the field! Keep us informed about your progress and updates. No doubt, over time you will discover a year-round spot to play radio in the field!

Sony ICF-2001D/2010 vs ICF-SW77: The final result & next contender ~ The Eton E1

Hi there, after conducting a total of 14 reception tests comparing these two vintage – but excellent portable shortwave radios, there was a clear winner – the ICF-2001D. Interestingly, the second half of the testing identified yet another example of synchronous detection lock dropping out on the ICF-SW77 (during reception of Radio CANDIP, Democratic Republic of the Congo on 5066.4 kHz). Generally, however, and despite a fairly narrow performance margin, the ICF-2001D managed to deliver clearer audio across 5 of the remaining 6 reception tests, giving a final score of 9 to 3 in it’s favour. However, despite the clear win, there is no doubt in my mind at all that the ICF-SW77 is still a great portable receiver and in my humble opinion, remains one of the best ever made.

I believe this comparison test reveals the only likely remaining contender to the top-spot in portable shortwave receivers to be the Eton E1/E1XM. Originally to be marketed as the ‘Satellit 900’ (that never happened) and following a decade of development, involving RL Drake, it was finally introduced in 1995 – and then out of production within a few years. Fortunately, a couple of months ago, I managed to snag one in excellent condition on eBay, for a reasonable price. Now, these radios are not without issues, including, but not limited to; sticky rubber exterior casing, malfunctioning display, failing function keys and general all-round fragility. Not exactly what I would be looking for in a rugged, well-performing portable for my DXpeditions. However, as someone who is always exploring ways to ‘push the performance envelope’ and the obvious potential benefits of passband tuning, an allegedly superior synchronous detection circuit, 4 audio bandwidth filters and tuning resolution down to 10 Hz, the E1 was impossible for me to ignore. Thus, at some point in the near future, I will perform a similar comparison test with the Sony ICF-2001D and the Eton E1. Whichever camp you might be in, I hope you’ll enjoy the reception videos and find the results/conclusions informative.

For now, wishing you all excellent DX.

eton-e1l

The Eton E1; possibly the best portable shortwave receiver of all time?

 

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.

Which is the best? Sony ICF-2001D/2010 or ICF-SW77? Part two

sony-test

Hi there, after the first set of recordings were analysed, the score was 4-3 to the ICF-2001D, demonstrating how similar these two great receivers are in overall performance. There were a copule of notable differences however. The synchronous detection circuit on the ICF-2001D allows the user to effectively tune through a signal in 01. kHz steps, whilst the receiver automatically locks onto either the upper or lower sideband, depending on the frequency offset. The ICF-SW77 synchronous detection system differs in that the user must tune the signal and select the sideband. The results of this test confirmed that whilst the ICF-2001D almost always retained SYNC lock, the ICF-SW77 was very prone to losing lock, which of course affected the audio quality in many cases. The other issue was with the ICF-SW77 in that the narrow audio bandwidth filter often seemed to deliver ‘muddy’ audio. Whilst this feature proved to be excellent in terms of mitigating adjacent channel QRM, it also reduced signal clarity/ audio discernibility a little too much in my opinion. However, overall, sensitivity and selectivity was very similar between both radios – in fact, one recording had to be judged a draw (Radio Bandeirantes, Sao Paolo on 9645.4 kHz) – I simply couldn’t split them. Part two of the reception testing follows, using signals from Canda, DR Congo, Brazil, Cuba and Peru.

I hope you enjoy the recordings – text links and embedded videos follow below:


 

 

 

 

 

 

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.

Which is the best? Sony ICF-2001D/2010 or ICF-SW77?

sony-test

Hi there, subscribers to my YouTube channel Oxford Shortwave Log  will be aware that I currently operate both of these wonderful vintage portables. I purchased the ICF-2001D only 18 months ago from eBay, based largely on its reputation as one of the best performing portables ever made. Previously I had been using my excellent ICF-SW55 as the mainstay receiver for my numerous DXpeditions, coupled with irregular appearances from my Sangean ATS-803A and the excellent value-for-money Tecsun PL-360. The ICF-2001D proved to be a revelation in terms of sensitivity, selectivity and contrary to popular belief, with careful planning (to avoid crowded bands), is able to cope pretty well with very large antennas. As regards audio bandwidth filtering, SSB and synchronous detection, in my experience, the ICF-2001D is as good as it gets in a portable – or a vintage portable at least. I have lost count of the number of personal-firsts I’ve achieved using this wonderful receiver and as someone who likes to push the envelope a little, I soon started to wonder whether it’s replacement, the ICF-SW77 might prove to be an even better performer. Subsequent online research  confirmed there was no absolute consensus on this issue, with followers of these two great receivers firmly placed in both camps.

Sometime later, a good friend of mine, fellow radio hobbyist and subscriber to Oxford Shortwave Log very kindly offered to send me his cherished ICF-SW77 on long-term loan. Like me, he was intrigued to know how it compared to it’s venerable predecessor and thus the deal was done! Upon it’s arrival in July, I started planning a back-to-back series of comparison tests at the very quiet wood in Oxfordshire I used for my DX’peditions, using the same antenna for both recievers – the excellent Wellbrook ALA1530 active loop. In total, I made fourteen reception videos comparing the ICF-2001D and ICF-SW77 and posted them to Oxford Shortwave Log. Both receivers performed very well, delivering excellent reception on the Tropical Band and elsewhere on the shortwave spectrum from Bolivia, Brazil, Guatemala, amongst others. At the halfway stage, I generated a video to summarise the results to-date and this will follow in my next post to swling.com.  In the meantime, I hope you enjoy the first half of the reception videos; which follow below:



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.