Tag Archives: Paolo Viappiani (SWL I1-11437)

Comparing the Watkins-Johnson WJ-8711 & WJ-8712 with TEN-TEC RX-340 & RX-331 receivers

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

The WJ-8711 & WJ-8712 vs. Ten-Tec RX-340 & RX-331 Receivers

by Paolo Viappiani, Carrara, Italy

In recent years, a renewed interest has grown in regards to the best HF receivers using “first generation” DSPs, typically the HF-1000/HF-1000A, WJ-8711/WJ-8711A and WJ-8712 models by Watkins-Johnson and the RX-340 and RX-331 models by Ten-Tec. Even today, the aforementioned receivers are considered among the best performers of all times; this is a well-deserved fame in the case of the W-Js, a bit less with regard to the units manufactured by Ten-Tec, a firm that once had a good reputation but that has been recently acquired by a new owner (who sold the old facilities by transferring the company and distorting the sales, support and assistance policies of the previous company [2]). I therefore believe that this article serves as a dutiful information for the readers who are potentially interested in these receivers.

A Bit of History

In the years between the last and the present century, two receivers very similar to each other in terms of design and structure were released almost simultaneously by Watkins-Johnson of Gaithersburg, Maryland [1] and by Ten-Tec of Sevierville, Tennessee [2]: the WJ-8711 (later upgraded to the A and A-3 versions and followed for a short period by the HF1000 and the HF1000A “civilian” versions [3]) and the Ten-Tec RX-340; both of them are shown in Figure 1.

Figure 1: The WJ-8711A (above) and Ten-Tec RX-340 (below). Notice the similarity of the front panels of the two radios.

The WJ-8712/WJ-8712A and the Ten-Tec RX-331 receivers were released by their respective manufacturers in that period also (the latter one was preceded by the RX-320 and RX-330 models). All these types were nothing more than “black-box” units, that in all respects corresponded to the WJ-8711A and to the Ten-Tec RX-340 receivers but that had not been provided with true front panels, as they were controlled by special hardware interfaces or from a PC, look at Figures 2 and 3.

Looking at the appearance of the WJ-8711/HF1000 receiver series and of the Ten-Tec RX-340 units, a relative similarity to each other is evident, and it has led to various speculations regarding the design of both devices.

One of the theories was revealed by James (Jim) C. Garland W8ZR of Santa Fe, New Mexico [4], about which he claims to have obtained information from a Ten-Tec employee directly. James claims that in 1991 the US Government Agency NSA (National Security Agency), which used to purchase numerous HF receivers for surveillance and interception, decided that the current cost of the receivers were too high and formed a special group in order to study how to obtain a possible price reduction.

At that time the high-end HF receiver market was dominated by a few manufacturers: Watkins-Johnson, Racal, Cubic, Rockwell-Collins and a few others, and Ten-Tec applied for joining the group.

Figure 2: The WJ-8712A (above) and Ten-Tec RX-331 (below). While the Watkins-Johnson model is two rack units high and half wide, the Ten-Tec develops less in height (only one rack unit) and more in width (standard 19” rack). However, both receivers are quite deep (more than 20”-50 cm.).

Figure 3: The Tmate unit of the WoodBoxRadio is shown here; it is one of the possible accessories which, together with a PC monitor, allow using the “black-box” receivers via an RS-232 interface.

According to the information provided by Jim Garland, the Watkins-Johnson and the Ten-Tec designers worked together for about one year in order to agree on the technical characteristics and guidelines of the “radio of the future” which must meet all the requirements that the NSA requested.

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Paolo’s review of the Eton Elite Satellit

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

ETON Elite Satellit: an expensive flop

by Paolo Viappiani, Italy

Introduction

After various and sometimes conflicting announcements that have created strong expectations in radio listening enthusiasts, ETON has recently launched on the extra-European market (basically in the United States) what should have been its “top of the range” portable, the Elite Satellit model . Aesthetically (and also functionally) inspired by the previous E1 model, the new portable radio should have been free from the defects of its predecessor, in particular as regards the “sticky” coating of the plastic case but also with respect to other technical drawbacks repeatedly reported by users (display contrast and shading, etc.).

The new Elite Satellit was announced to look practically identical to the E1 model and to use the same cabinet, but with various additions and improvements: RDS, FM-HD reception, Air Band, etc. A frequency resolution of 10 Hz in the shortwave bands, a PBT (Pass-Band Tuning) facility, a large LCD display with the possibility of changing its background color were also provided.

It is therefore obvious that its release was highly anticipated, and the resulting expectation gave rise to numerous pre-orders of the radio in the United States, where the main distributor was (and still is) the well-known Universal Radio company owned by Fred Osterman [1].

Unfortunately, the initial boom in sales of the ETON Elite Satellit was followed by many return requests due to the poor performances of the radio and the numerous defects encountered by users, also reported in a lot of videos and negative reviews on the Internet [2].

Fred Osterman himself, disappointed by the performance of a radio that he should have sold as an excellent portable, began to test the individual devices in his own laboratory and to return to ETON all the units that did not meet the declared specs (basically the vast majority of those received for sale) [3]. All this caused great confusion at ETON, which was forced to somehow remedy its errors (mainly due both to a very approximate alignment of the circuits and to an almost non-existent final quality control).

Unfortunately, despite the precautions adopted “hastily” by ETON, most of the “overhauled” devices that were returned to Universal Radio continued not to comply with the specifications, so that Fred Osterman, who is a good technician and a very honest dealer, decided to cancel most of the orders received and to sell the very few radios found to be in good working order within the United States only, (see again note [3]). I myself placed an order from Universal Radio for an ETON Elite Satellit on August 8, 2022 (Order ID: #8992932, retail price $599.99 plus shipping and import customs duties), but Fred was forced to “drastically cut” the orders received and to cancel mine too, due to the impossibility of satisfying the many customers on this side of the pond. However, my desire to have an example of the ETON Elite Satellit in my hands, in order to be able to see, test and judge the new radio it was really great, and great was also the wish to realize if the many negative impressions circulating on the web were or were not justified and true.

So I decided to look for other ways to buy the “latest cry” of ETON. The opportunity presented itself to me, almost unexpectedly, by visiting the American site of Amazon [4].

The purchase and the arrival of the radio; my first impressions

I therefore ordered an ETON Elite Satellit portable radio on the Amazon.com website on January 17, 2023 at the price of $698.16 (including shipping and customs duties). I report in Figure 1 the screenshot concerning my order #113-3575479-2262609 which, as it appears, was delivered to me on January 23, 2023, after only five days; this demonstrates the truthfulness of my statements.

Figure 1: A Screenshot of my Amazon.com order dated January 17, 2023.

The shipment was delivered to me by UPS courier in the usual Amazon packaging in a plastic bag (Figure 2).

Figure 2: The UPS label and the Amazon plastic bag.

Inside the envelope was a cardboard box containing the radio, in understandably less than perfect conditions (Figure 3).

Figure 3: The cardboard box of the ETON Elite Satellit.

Figure 4: The contents of the radio box.

Once the package was opened, the contents of the box looked like in Figure 4: two shock-absorbing spacers held the device in position (inserted in a plastic bag) and its AC power supply (into a white box, and obviously with a 117V input voltage). There was also the “User Guide” in a paper version and a “mini-guide” to listening to short waves; completely absent was the CD that used to be enclosed in the box of the previous E1 version of the radio.

Continuing with the operations, I came across a sort of brown plastic cover intended for the protection of three sides of the radio (front, top and back) which can be held in position by some magnets and is provided with two circular holes in correspondence with the tuning knobs and volume of the radio (Figure 5).

Figure 5: The ETON Elite Satellit radio and its “case” (?)

I omit to make comments on this “protection”; I only say that in my opinion it is useless (and ugly too) and I believe that the gentlemen of ETON could have wasted their energies otherwise; but maybe someone likes it too…

Figures 6 and 7 show the front and back of the portable radio as soon as it has been removed from the protective plastic bag. Note the almost identical appearance of the cases of the Elite Satellit and of the previous E1 model.

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Radio Mods: Unblocking the YAESU FRG-8800 Frequency Coverage Limitations

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Many thanks to SWLing Post contributor, Paolo Viappiani (SWL I1-11437), who shares the following guest post. Note that, as with any radio modification, perform this operation at your own risk. This is a very simple mod, but if you feel it might be beyond your skill level, consider hiring a radio technician to perform it on your behalf:

Unblocking the YAESU FRG-8800 Frequency Coverage Limitations

by Paolo Viappiani

Figure I: An unblocked FRG-8800 receiver tuned to 29.999.9 MHz.

Introduction

It is well known that some receivers produced in the last decades of the last century suffered from a limited frequency coverage due to legislative restrictions in force in some countries (Germany, Australia, etc.).

In particular, in Germany it was forbidden to listen to HF frequencies higher than 26.1 MHz, while in other Countries shortwave were not allowed to receive frequencies below 2 MHz.
These restrictions led most radio manufacturers to produce “blocked” versions of their HF receivers in order to satisfy the various national requirements; almost classical examples are the world renowned SONY ICF-2001D and the PHILIPS D-2935/D-2999 portables.

The blocking/unblocking procedure of some frequency bands was quite simple in microprocessor-governed synthesized radios: usually it was sufficient to add (or remove) proper jumpers in the vicinity of the microprocessor to perform the task, and the correct procedure was often covered in the Service Manuals or in specific Technical Bulletins; in any case plenty of information can be found on the Internet. Continue reading →

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Paolo warns of persistent classifieds scams targeting radio collectors and advises how you can be scam savvy!

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Many thanks to SWLing Post contributor, Paolo Viappiani (SWL I1-11437), who shares the following guest post:

A recent resurgence of Internet scams involving quality radios

by Paolo Viappiani (SWL I1-11437)

After my previous post on this subject, I found on the Internet other very dangerous fraud attempts concerning high-quality radios offered at very convenient prices. Below, you’ll find the details of a recent attempt concerning the highly-desirable SONY CRF-V21 receiver.

The methods are always the same, but the scammers greatly refine their fraudulent techniques, even going so far as to carry out real identity thefts, as in this case.

Of course, I knew from the beginning that it was a fraud (I don’t let myself be fooled anymore!), but I tried to continue corresponding with the scammer in order to get as much data on his real identity as possible. At the same time, however, I reported the fraudulent advertisement to the site webmaster in order to prevent other users from falling into the trap. The ad was promptly removed, but the scammer noticed it and immediately he slipped away…

Here is the story…

I have been trying to detect and report Internet scams from some time (since I was scammed!), and recently I found an advertisement for a SONY CRF-V21 radio, described as working and in good cosmetic conditions, on the Italian website “Clasf”, look at the picture below:

The radio was offered for Euro 2.600 from a seller who supposedly resided in Rome, Italy.

I sent him a message through the “Clasf” site and almost immediately I received a reply from someone who claimed to reside in Reichertshofen, Germany.

Déjà vu… Germany, Spain or Portugal always seems to be the same story…

But this time the very serious thing is the fact that the scammer identified himself as an “implantology dentist”–a fake identity–also providing a counterfeit website:

From my investigation it appears that both the picture and the website were stolen from a true professional from Hamburg, Dr. Bernhard Brinkmann, look at the websites (here and here).

Of course I tried to contact Dr. Brinkmann and I still make all the documents available to him, in case he wants to prosecute the thief.

About the pictures I received from the scammer (you’ll find some of them below):

All photos were stolen from a Canadian eBay advertiser instead:

So, buyer beware! The number of frauds in the radio market on the Internet is growing day after day, and it always advisable to keep your eyes wide open, even in the rush to purchase a much desired item at an affordable price.

Today scam techniques are increasingly refined, as shown in the example reported above.
Sincerely I don’t know if this user has something to do with the other European scammers (supposedly from Spain and Portugal) I quoted in my former post. The Italian Postal Police, after having examined the headers of the e-mails that I received along with other documents, believe that such scammers can reside anywhere in the world.

Most scammed

Anyway, the three “most scammed” radios are currently the Panasonic RF-8000, the Panasonic RF- 9000 and the Sony CRF-V21 (pictures below):

Please also notice that a number of advertisements on the most popular classifieds sites (Quoka.de and ebay-kleinanzeigen.de in Germany, Subito.it, Clasf and AAAnnunci.it in Italy, Le Bon Coin in France, ComoFicho in Spain, etc.) still are mirrors for larks only, and you have to pay a great attention in order not to be scammed.

A recent trip over all the mentioned sites revealed that only a few ads are really true…

Red Flags

I repeat some notes about scammers and their usual techniques:

A.) The scammer advertises a very rare radio in like-new conditions at an unbelievably low price. The buyer does not want to miss the bargain, so he contacts the seller and promptly transfers the money to him without further ado, but after that he waits in vain for the delivery of his item.

B.) If you contact the seller, the item is always abroad. The alleged seller then proposes to handle the purchase through a “trust company”. The radio should be paid in advance and the amount sent via cash transfer, but after that you never hear anything from the seller again.

C.) Alternatively, the buyer is requested to to deposit the money to the eBay company account to get the product. But the account is fake (eBay HAS NO “Company Account” and never handles private transactions!), so the buyer loses his money and receives nothing in return. Please also notice that often the fraudulent sellers offer a free period for evaluating the item, saying that if you do not like the device you can send it back. Please don’t fall into this trap, it is only one of the means the scammers use to entice you to purchase, but IT IS NOT TRUE AT ALL!

I repeat also some useful advices in order to make secure and safe purchases on the Internet:

1.) Always beware whenever the item is in a place (or a country) different from the one that was specified in the advertisement; also there is a valid reason for suspicion when the name or the address of the advertiser does not match the seller’s ones;

2.) Do not completely trust the pictures sent by the seller (they could be stolen from the Internet) and don’t forget to proceed to a “Google Reverse Image Search” in order to find the sources of similar ones;

3.) Always ask the seller for some specific pictures or videos (radio precisely tuned to various frequencies and/or modes) and do not accept any runarounds about it (“you can try the radio for some days”, etc.);

4.) Never pay the item in advance by rechargeable credit cards, Western Union or other non-secured/guaranteed ways of payment. Also Bank Transfer (Wire Transfer) is not a secure form of payment in order to avoid frauds;

5.) Always ask the seller for paying by PayPal “Goods and Services” (NOT “Send money to friends”); via “Goods and Services”, your purchase will be fully covered by the PayPal warranty.

In the case you are a victim of a scam anyway, please always report the incident to the Police or the Judiciary of your Country, and don’t forget to also warn the site where the announcement was found.

Best regards!
Paolo Viappiani – SWL I1-11437

Thank you so much for sharing this, Paolo! All very solid advice for avoiding scams.

If you think about it, scammers want to optimize their scam profits per transaction–in other words, go for the “low-hanging fruit.” This is why quality, rare radios are their bait of choice. They know there are motivated collectors and buyers who need to act quickly in order to secure a deal. The stakes are very high if you’re purchasing a rare/vintage radio via online classifieds sites.

Bookmark this article. Before making a radio purchase, re-read this post and follow Paolo’s advice. I promise: real vintage/rare radio sellers will happy take specific photos and videos in order to prove that the radio is indeed in their possession and that it functions as specified. If you receive an excuse–any excuse–from the seller, consider that a major read flag and do not proceed.

Thank you again, Paolo! I hereby name you an honorary SWLing Post Investigative Reporter!

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Guest Post: Paolo’s Tips For Avoiding Internet Scams

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Many thanks to SWLing Post contributor, Paolo Viappiani (SWL I1-11437), who shares the following guest post:

Some Tips For Avoiding Internet Scams

by Paolo Viappiani – SWL I1-11437

[email protected]

Recently, I have been amazed by the growing number of frauds that foul up the radio market on the Internet (I was scammed too), so I decided to write a post in order to help anyone who is interested in buying anything on the web.

First, it’s worth saying that most scam attempts involve high-quality items that are offered at surprisingly low prices. One of the most significant examples involves some rare (and discontinued) high-end radios by National Panasonic, typically the RF-8000 and RF-9000 models. In this post, I make an example of the RF-8000, but scams also concern radios of other brands..

Generally speaking, a number of advertisements on the most known advertising/classifieds sites (Quoka.de and ebay-kleinanzeigen.de in Germany, Subito.it, Kijiji and AAAnnunci.it in Italy, Le Bon Coin in France, ComoFicho in Spain, etc.) are mirrors for larks only, and we have to pay a great attention in order not to be scammed.

But… how can we recognize a scam?

The most common scams use the following techniques:

The scammer advertises a very rare radio in like-new condition at an unbelievably low price. The buyer does not want to miss the bargain, so he contacts the seller and promptly transfers the money to him without further ado, but after that he waits in vain for the delivery of his item.
High quality radios offered very cheap. If you contact the seller, the item is suddenly abroad. The alleged seller then proposes to handle the purchase through a “trust company”. The radio should be paid for in advance and the amount sent via cash transfer, but after that you never hear anything from the seller again.
Alternatively, the buyer is requested to to deposit the money to the eBay company account to get the product. But the account is fake (really eBay has no “COMPANY ACCOUNT” and never handles private transactions–!), so the buyer loses his money and receives nothing in return.

Please also notice that often the fraudulent sellers offer a free period for evaluating the item, saying that if you do not like the device, you can send it back. Please don’t fall into this trap, it is only one of the means the scammers use to entice you to purchase, but it is not true at all!

In the following section I’ll recount some examples of real scams concerning the National Panasonic RF-8000 and RF-9000 radios (but, as I already mentioned, the scams involve many other radios and also high-quality electronic or electro-acoustic devices).

One of the most prevalent (and very dangerous) scams concerning the RF-8000 radio is (was) perpetrated by a Portuguese seller who offered (for about 2.300 Euro on the AAAnnunci.it and Quoka.de websites) a very nice appearing radio, look at the photos below.

Really a radio in like-new conditions, uh?

But it is just a trap: most of the Panasonic RF-8000 radios have the leather covers on all sides cracked like crocodile skin (look at the image below); only a very few units still have the covers in pristine condition and for sure they cannot be found at cheap prices!

Incidentally, all the pictures used by that scammer (including the two shown in the first two pictures above) were stolen from an old eBay advertisement of October 2018 and that wonderful appearing RF-8000 was sold to a radio collector in China for about $ 5,000 USD.

But the same images also recently appeared on some European advertisement websites (in Italy and in Germany too); if you ask for info, you’ll be contacted soon by a seller from Portugal who offers to handle the purchase through a “trust company” of his confidence, named TrafCargo (beware of this, it is a convincing but fake website!).

Then, the seller requests that the amount for the radio and its shipping costs be sent via a bank wire transfer to the fake transportation company.

After that you never hear anything from the seller again.

Very similar scams are also found in various advertisement/classified websites (Quoka.de, ComoFicho.com etc.), look at the images below as examples. If such items are offered cheap, it is for sure a scam:

A similar attempt of fraud is commonly perpetrated by other people, including a female seller from Spain. As you might suspect, she offers something that looks like a real bargain, but it’s only a scam. After you have asked for info on the product, you receive a message in which it is specified that the item is located abroad and you are asked to deposit money to a fake “eBay” account (note that eBay does not accept any payment outside their site!).

In order to be more persuasive, often the scammer attaches a copy of his/her passport of other identity documentation in order to appear as a serious seller–please do not trust them however!

Also, beware of the fake “eBay invoice” that sometimes the scammers send, and for anything that involves eBay, contact the eBay helpdesk, ask for specific info and report them the fraud eventually.

In the following section you’ll find some useful advice on recognizing scams and making secure and safe purchases on the Internet:

Always beware whenever the item is in a place (or a country) different from the one that was specified in the advertisement; also there is a valid reason for suspicion when the name or the address of the advertiser does not match the seller’s ones;
Do not completely trust the pictures sent by the seller (they could be stolen from the Internet) and don’t forget to proceed to a “Google Image” search in order to find the sources of similar ones;
Always ask the seller for some specific pictures or videos (radio precisely tuned on various frequencies and/or modes) and do not accept any runarounds about it (“you can try the radio for some days”, etc.); normally the scammers do not have the items they offer at hand, so they are not able to satisfy your precise requests.
Never pay for the item in advance by rechargeable cards like Western Union or other non-secure ways of payment. Also the Bank Transfer (Wire Transfer) is not a secure form of payment in order to avoid frauds;
Always ask the seller for payment by PayPal “Goods and Services” (NOT “Send money to friends”). If you choose Goods and Services, your purchase will be fully covered by the PayPal warranty.

And, in the case that you are a victim of a scam anyway, please always report the incident to the Police or the Judiciary of your Country, and don’t forget to also warn the site where the announcement was found.

Following the above advice should be sufficient to avoid any scam. So, good luck on your future web purchases!

This is excellent advice, Paolo. Thank you for sharing your experience!

One of my favorite bits of advice above–and one I use anytime I make a significant purchase via a classifieds website–is to ask the seller for specific photos or a video of the item. As you say, they don’t typically have the item on hand, so can’t comply and will make up excuses. That’s a major red flag!

Another red flag? If it sounds too good to be true, it probably is! Trust your instincts and avoid the hassle and headache.

Post readers: Please share any other advice you have about avoiding radio scams. Have you ever been the victim of a scam? How did it play out? Please comment!