Category Archives: Radios

Phil identifies mystery radio as the Digitech Audio AR1945

The Digitech AR1945 portable radio

The Digitech AR1945 portable radio (Click to enlarge)

SWLing Post reader, Phil, noticed the unidentified radio from this post as the Digitech Audio AR1945.

He comments:

This radio has been released in Australia via the Jaycar Electronics Stores as the Digitech Audio AR 1945. It has all the hallmarks of Redsun radios.

I bought one and overall the performance is very good on MW and SW, FM is ok and AIR band isn’t too bad. The big drawback is the SSB. It is dreadful, by far the worst SSB demodulation I have ever come across in a radio. This needs to be addressed and once done so, will be a good receiver.

Pity it doesn’t have Synchronous detection as, if you look at the display carefully, provision has been made for this feature. I wonder how it can be activated? I would appreciate any comments on a fix for the SSB

Phil, thanks so much for the mini review. Here’s a link to the AR1945 on Jaycar’s website: http://www.jaycar.com.au/productView.asp?ID=AR1945

Has anyone found a mod to activate a potentially dormant sync detector or to improve SSB demodulation? Please comment.

I’ve posted various views of the Digitech AR1945 below, along with this full description from Jaycar’s website:

The Digitech AR1945 portable radio“Ideal for a novice ham radio licensor, keen fisherman or even just the outdoors type, this radio has everything you will ever need in a radio with the added function of single-sideband modulation (SSB). SSB is used to obtain current weather reports, so it is perfect to take to sea to avoid changing weather conditions. However with great FM and AM coverage and battery operation it is also perfect for camping, BBQs and thanks to its world/local time selection clock and alarm, it can even be used as an alarm clock! Additional features include auto tuning saving, 500 memories and keypad direct entry. This is certainly a radio of many uses! Power options are 6 x AA (not included) used with supplied 6 x D size battery adaptors, 6 x D batteries (not included) or the supplied 9V PSU. Supplied with a carry strap.”

AR1945side• FM: 87.5-108.0MHz
• MW(AM): 522-1620kHz (9kHz); 530-1710kHz (10kHz)
• AIR: 118-137MHz
• SW: 1,711-29,999kHz
• LW: 144-450 kHz

Features:
• Large back lit LCD 
• RF gain control 
• Bass & treble controls
• Key lock
• IF output 
• Line in and out 
• Earphone socket
AR1945back• Speaker 5W/4 ohms
• Local/DX antenna switch
• External antenna connection 
• Internal full range speaker 
• Mains or battery operated 
• Dimensions: 310(W) x 195(H) x 100(D)mm

 

Of course, this radio is most likely available in other parts of the world under different brand names. Let us know if you’ve seen it.

Grundig G3 discontinued, Tecsun PL-880 on the way

The Grundig G3 shortwave radio.

The Grundig G3 shortwave radio.

Not really a surprise, but I’ve confirmed that the Grundig G3 has been discontinued. They are still available, for the moment, from Universal Radio and online sources like Amazon.com. I would not advise buying from Amazon as I’ve received numerous complaints that they’ve shipped faulty units. Universal Radio, on the other hand, is testing each an every G3 leaving their shop.

With the exit of the G3, this leaves Grundig with the following selection of shortwave portables:

TecsunPL-880Box

Tecsun PL-880

Tecsun, meanwhile, is adding to their extensive line of shortwave portables. Indeed, this morning, W4ASZ comments:

“I found this link courtesy of the manly men at Herculodge :

http://tecsunradio.com/2013/09/14/new-arrival-tecsun-pl880-fm-radio-dsp-stereo-speaker-coming-soon/9030

Looking pretty good !”

I agree and I do feel cautiously optimistic about the Tecsun PL-880. Could it be my new travel radio? Though I still happily travel with the Grundig G3, Sony ICF-SW7600GR and Tecsun PL-380, a guy can’t have too many radios to choose from!

I’ll plan to review the PL-880 once it’s available. I’m particularly interested in seeing how it stacks up against the venerable Tecsun PL-660.

Stay tuned!

Review of the RadioShack AM/FM portable digital radio, Model 12-587

The RadioShack Model 12-587 AM/FM Radio

The RadioShack Model 12-587 AM/FM Radio

Three days a week, my father––now in his seventies––takes a three mile walk through his home town, revisiting the neighborhoods of his youth. He began the walks upon retirement, and in my opinion, the routine has helped keep him in great shape. When he first started walking I learned he was carrying around a heavy AM/FM radio with him.  I bought him a bargain one-off Coby AM/FM portable that is not only lightweight but sports a handy neck strap. Dad’s loved it. Indeed––much to my surprise––it’s lasted about ten years, and is still playing, although starting to show signs of wear…

So I decided it was time to test drive a suitable replacement. After searching, I found the RadioShack Model 12-587 AM/FM radio. At a clearance price of $14.99 (US), there will be no loss of sleep if Dad misplaces it or drops it on the pavement.

Still, I couldn’t resist giving it the once-over, and thought I might share the mini review that resulted. As I always say for radios in this price range, my expectations were low.

Here’s a summary of this little AM/FM radio’s pros and cons:

Back of model RadioShack 12-587

Back of model RadioShack 12-587

Pros:

  • Very good FM selectivity and sensitivity
  • Excellent FM stereo lock
  • Scan function both useful and quick
  • 10 AM and 10 FM memories (see con)
  • Large, amber back-lit LCD display
  • Simple control lock switch on right side
  • AM (medium wave) sensitivity adequate
  • AM nulling above average
  • Plastic “blister” packaging very easy to open!

Cons:

  • Tinny sounding audio via built-in speaker
  • Headphone audio lacks high/low; mid-range only
  • Memory allocations supposedly volatile (when batteries are replaced)
  • AM frequency steps fixed at 10 kHz (cannot adapt to 9 kHz steps used in rest of the world)
  • AM (medium wave) sensitivity mediocre at best
  • Complete mute while tuning; not capable of band-scanning
  • Dimple on tuning knob not useful
  • Very sensitive to noise (QRM) on the AM band, resulting in static popping/crackling in audio

Obviously, this is not a radio for the radio hobbyist or world traveler, as it lacks any real medium wave sensitivity and cannot tune in 9 kHz steps. FM tuning is also locked on odd frequencies, thus will not work throughout parts of the world with even spacing. And though the radio is touted as having “extended bass,” the audio is tinny, even via headphones.

RadioShack-Model12-587-AMFMRadio-2BUT.  This is a perfect example of a situation in which, though cons outweigh pros, the RS Model 12-587 is a great match for its intended purpose: my father’s morning walks. Why? It’s a simple-to-operate radio with a large, back-lit display (Dad won’t need to put on his glasses to read it). It receives local AM and FM stations very well. The mid-range audio––while lacking ample fidelity for music––are perfect for the talk shows he listens to while walking. The radio is durable, lightweight, easy to tune, and has a lock feature. It is also remarkably easy to program memories: simply press the program button until preset flashes in the LCD display, use the scan up/down buttons to choose a memory number then press program again.  It’s also very affordable, so no problem to replace as necessary.

In conclusion, the RS Model 12-587 is not a performance radio––and I wouldn’t generally recommend it––but it suits my father’s needs very well.  Like to walk or run? Maybe it’s just what you’re looking for, too.

Redsun RP-3100 ready for pre-order

Redsun-RP3100Radio Flynn writes:

I found some information about the release date of the Redsun RP-3100 and posted it on Herculodge – lets hope it is real:
http://herculodge.typepad.com/herculodge/2013/09/not-to-fan-the-flames-of-redsun-rp-3100-lust-.html

The Redsun RP-3100 has been rumored for ages.  Glad to see it’s coming to fruition!

The Ten-Tec RX-320D and Model 1254 have been discontinued

Tthe RX-320D black box receiver

Tthe RX-320D black box receiver

I just confirmed with Ten-Tec that the RX-320D PC controlled receiver and the Ten-Tec Superhet receiver kit, the Model 1254, have both been discontinued.  A Ten-Tec representative told me the reason both of these models have been discontinued and removed from Ten-Tec’s product line is because one of the parts used in production is now obsolete.

A long run…

The RX-320 and RX-320D have had a very long product life as the RX-320 was introduced in the late 1990’s (1998, if memory serves)–pretty amazing.

I owned an RX-320D for a long time and thought that it was still a great value. Here’s a review I wrote in 2009.

The Ten-TEc Model 1254 "superhet" receiver

The Ten-Tec Model 1254 Superhet Receiver kit

As third generation SDRs have emerged, and become so affordable in the past few years, it’s hard to justify the purchase of a receiver whose control software was designed for Windows 95.

So long RX-320D, you’ve had a long run…

I have SWLing Post reader, Larry, to thank as his recent inquiry about the Model 1254 Superhet kit prompted me to call Ten-Tec for verification. 

A photo tour of the VOA radio shack, K3VOA

Last week, I visited my friend and fellow radio enthusiast, Dr. Kim Elliott, at the Voice of America headquarters in Washington DC. Kim gave me a tour of K3VOA, the ham radio club station of the Voice of America. K3VOA has a full ham shack, QSL card gallery, an SWLing station, some vintage gear and they even run a repeater site. Kim also took me on the roof to view the K3VOA antenna farm; not only is it impressive, but so, too, is the view of the Capitol Building.

Here is a gallery of the photos I took–click on the image to enlarge:

It’s hard to say goodbye: my Alinco DX-R8T lands on eBay

ALinco 021Alas–! It’s time to bid a fond farewell to my trusty Alinco DX-R8T. I’m only selling it to raise money to purchase hard drive storage for spectrum recordings and more review radios, which fuel this site.

Needless to say, it’s in great shape and reviews most favorably. Indeed, the sensitivity is so good, I’m a little reluctant to sell it…But sacrifices must be made; there are some 4TB SATA drives with my name on them (plus, admittedly, I still have five other tabletop receivers for consolation).

Click here to view the listing of my Alinco DX-R8T on eBay.