Propagation-Triggered Spectrum Recording

Many thanks to Jon Hudon of SDRplay who shared the following on the SDRplay Facebook page:

One of the SDRplay user community, Jukka, has started an interesting discussion on what he has called ‘propagation-triggered recording’ – he outlines the concept, and what he is doing, on our forum – see http://www.sdrplay.com/community/viewtopic.php?f=9&t=1839

The idea is that you monitor signals to determine if conditions are particularly good and can thereby trigger an I/Q recording of a whole band during that particular propagation high point -Jukka welcomes more comments on this idea.

Many thanks, Jon. I would certainly be a fan of this as so many times I’ve missed fantastic band openings while travelling. It would be nothing short of brilliant to come home to automatic SDR spectrum recordings taken during prime propagation. At the moment, propagation is so dismal, rare openings are worth recording!

As Jon points out above, check out the SDRplay forum for more details.

Spread the radio love

Ajit Pai designated as chairman of the FCC

FCC Commissioner Ajit Pai (R)

(Source: Forbes)

In one of his first official acts, President Trump designated Commissioner Ajit Pai as the new chairman of the Federal Communications Commission. He is the first newly appointed Republican chairman since Kevin Martin nearly 12 years ago. Many have asked: how will the FCC change under Chairman Pai?

Until recent years, the FCC was not a partisan agency. Having served with commissioners Mignon Clyburn and Michael O’Rielly, Chairman Pai is not expected to be particularly partisan.

Chairman Pai has served as a commissioner for nearly 5 years, and his views on a wide range of topics are publicly available on his FCC website that highlights his many Commission opinions, Congressional testimonies, speeches, publications, and blogs.

It is impossible to predict exactly where Chairman Pai will go with specific future policies such as network neutrality, particular mergers, and the aftermath of the disappointing and flawed broadcaster spectrum auction. But it is easy to describe broad themes of a Chairman Pai: follow the law, less regulation, and a folksy approach to government. […]

Continue reading at Forbes.com.

Spread the radio love

March 2-4, 2017: Join us for the 30th (!!!) NASWA Winter SWL Fest!

Leave a reply

Broadcasting a live performance of the Shortwave Shindig at the 2015 Winter SWL Fest.

Every year, I look forward to the only event I know that brings together both my avid interest in radio and my loyal radio-listening friends: the Winter SWL Fest. This is the one place where, among the 125-plus attendees, you can talk freely about all aspects of the shortwave hobby without any need of explanation as to why you find radio so fascinating. As a result, over the course of the eight years I’ve attended the ‘Fest, it has begun to feel less like a technical hobbyists convention and more like a (most enjoyable) family reunion.

The DoubleTree hotel where the Winter SWL Fest is held. Notice anything unique about the top floor of this hotel?

This year, the Winter SWL Fest is celebrating its 30th (!!!) Anniversary. The ‘Fest organizers have added an extra day to the convention making it a special three day event.

Here’s the description from the Winter SWL Fest website:

The Winter SWL Fest is a conference of radio hobbyists of all stripes, from DC to daylight. Every year scores of hobbyists descend on the Philadelphia, Pennsylvania suburbs for a weekend of camaraderie. The Fest is sponsored by NASWA, the North American Shortwave Association, but it covers much more than just shortwave; mediumwave (AM), scanning, satellite TV, and pirate broadcasting are among the other topics that the Fest covers. Whether you’ve been to every Fest (all 29, starting with the first year at the fabled Pink & Purple Room of the Fiesta Motor Inn) or this year’s will be your first, you’re sure to find a welcome from your fellow hobbyists.

For 2017, the 30th Annual (!!) Winter SWL Fest will have three days of sessions where you can learn about the latest developments in the radio listening hobbies, but there’s so much more going on. There’s a silent auction that takes place, where you’re bound to find something of interest. There’s the Hospitality Suite, where attendees partake of tuning oil and other treats and engage in spirited conversations. There is the closing Banquet, with after-dinner remarks by a luminary from the field, often one of the many broadcasters who attend the Fest, followed by the raffle, where you could win one or more of the dozens of prizes, ranging from pens from stations up to top-notch communications receivers. And of course, the infamous midnight ride of Pancho Villa that closes things out every year.

Early registration fees are available through the month of January, as an incentive to register early. We strongly urge you to do so as fees will increase for those registering January 28th and later.

Hotel Registration: The Doubletree Guest Suites offers a special $109 rate (single or double) that includes a full breakfast buffet. Reservations may be made by phone at +1-610-834-8300 or 800-222-8733 or online here; click on Special Rates and enter the group code NAS. If at all possible, please reserve hotel rooms using our group code, so we can maintain proper credit and keep costs down.

Fest Registration: A paper reservation form may be downloaded here; you may also register online via PayPal here.

Your hosts, Richard Cuff and John Figliozzi, work throughout the year to ensure that attendees have a great time over the weekend, and by all accounts, they succeed stunningly. How else could this event have lasted for 30 years (egad) and draw people from around the world to southeastern Pennsylvania? Won’t you join us?

This year, the grand prize at the Winter SWL Fest is the new Icom IC-7300 transceiver (which also happens to be an exceptional general coverage HF receiver).

If you can make a pilgrimage to Plymouth Meeting, PA, please do so. I think you’ll enjoy the diversity of programs and people who attend. I’ll be there along with a number of regular SWLing Post contributors. It’s a great time to exchange stories and ideas in person.

I always leave the Winter SWL Fest energized about a new aspect of our radio hobby. I think you will too.

Click here to register for the Winter SWL Fest online.

Spread the radio love

Used Tecsun PL-880 only $119.95 at Universal Radio

The Icom IC-R8600 shipping early 2017

30 Replies

The Icom IC-R8600 (Image source: Icom)

This morning, while browsing the latest ARRL QST magazine, I noticed an advertisement for the new Icom IC-R8600 wideband receiver. If you recall, last August, Icom made the announcement that it was introducing two new receivers: The IC-R8600 and the IC-R30 handheld.

The IC-R30 is the successor to the IC-R20 compact handheld receiver, but will have advanced receiving capabilities and be able to decode D-STAR, P25, NXDN and dPMR digital (conventional) modes.

Icom IC-R8600 back panel (Image source: Icom)

The IC-R8600, on the other hand, is more akin to the IC-7300 transceiver in terms of design, but has much more functionality than the IC-7300 and covers a wide range of frequencies (10kHz-3GHz).

The Icom IC-R8600 is essentially a tabletop SDR receiver.

Here are a few features mentioned on the IC-R8600 pre-release brochure:

Ultra-wide frequency coverage with RSSI (Received Signal Strength Indication) function
Fast moving, real-time spectrum scope and waterfall functions
Decodes multiple digital protocols, including D-STAR, NXDNTM, dPMRTM and APCO P25
Large 4.3 inch TFT color touch screen display
Clear audio quality using FPGA/DSP base architecture with superheterodyne circuitry
Optional RS-R8600 PC remote control software allows control of all receiver functions
I/Q signal output for use with third-party SDR software and/or external decoding
The SD card slot for received log, decode log and voice recording
Optional SP-39AD external speaker with integrated power supply

The back panel connections are pretty comprehensive (click to enlarge):

I will plan to review the IC-R8600 once it has become available. I have no clue yet what pricing will be.

I will post all IC-R8600 updates with the tag: IC-R8600

Spread the radio love

Another review of the Tecsun S-8800

6 Replies

UPDATE: Click here to read our full review of the re-engineered Tecsun S-8800. Note that the review below refers to a first production run S-8800e model.

In reply to our Tecsun S-8800e overview, SWLing Post contributor, Hymefly, comments:

I own this radio. Its performance on AM and shortwave is better than my Kaito 1103 and Sangean ATS-909x. My Grundig Satellit 750 beats it on SW. The 8800 is a bit better on AM than the 750, though.

The 8800 and my GE Super Radio 1 are just about equal on AM. The 8800 beats my Panasonic RF-2200 on SW, but not on AM. I didn’t compare it to my other radios on FM, as I really don’t listen to that band nor have any interest in it.

I did try out the FM band, though. It seems to have good sensitivity. The speaker provides good sound quality, but not “Super Radio” good. Display looks outdated. Not a fan of those amber/yellowish displays with spotty screen coverage. Not even close to the display on my 909x. But then again, no other radio comes close to the 909x’s display. Why can’t manufacturers implement nice bright white lit displays like the 909x?

The remote works ok. By the way, all comparisons were done utilizing each radios’ own built-in AM and telescopic antennas for SW. Overall, I can compare it more closely to the RF-2200, but with 8800 having slightly less sensitivity on AM and better on SW. The two even look almost the same. The 8800 seems to be an updated and refined modern design borrowed from the RF-2200. The RF-2200 has a more robust solid built, though. Overall, I give the 8800 a score of 7.5 [out of 10].

Thank you for your input, Hymefly. I’m pretty impressed the new S-8800 even comes close to the performance of the Super Radio 1 and the Panasonic RF-2200. I’m very curious what the price will be when the S-8800 hits eBay.

Spread the radio love

A Replacement Whip Antenna for Sony ICF-SW7600G

13 Replies

The Sony ICF-SW7600G (Photo: Universal Radio)

This is a guest-post by Eric, WD8RIF.

I’ve had my Sony ICF-SW7600G for almost twenty years. Early on, my very young son broke the receiver’s telescoping whip antenna and it was a simple and inexpensive matter to order a replacement whip assembly from Universal Radio, the Sony dealer from whom I had purchased the radio.

Recently, the receiver’s antenna failed at the pivot-point. First, the factory-supplied countersunk screw’s Phillips-head stripped out through repeated attempts to tighten the pivot over the years until finally I had to replace the screw. The best replacement screw I could find was a 2mm x 6 Allen-head screw from an R/C hobby shop that appeared to work fine until I managed to strip the antenna’s threads through over-tightening this screw. (Perhaps the Allen wrench simply provided too much torque for such a small screw.)

Clearly, it was time to actually buy a replacement antenna. This turned out to be easier said than done. Universal Radio is no longer a Sony distributor and has no access to parts for Sony products. A visit to the Sony website disclosed that service-parts are handled by two other companies, neither of which could provide the antenna—a surprising thing to discover since I think the antenna used in the ICF-SW7600G is the same part which is used in the current-model ICF-SW7600GR. A search on Amazon disclosed a seller offering the part for over $52, far more than I wanted to pay. Perhaps belatedly, I thought to check eBay where I found several listings, some offering the genuine Sony part shipped directly from Japan. I was intrigued, however, in the listing by stone_deng (link) who offered a non-OEM replacement antenna, shipped from Virginia, for $16.80 with free shipping. The description claimed the antenna was a perfect-fit replacement. Figuring the price would make this a good gamble, and because I wouldn’t have to wait weeks for delivery from Japan, I placed an order for one on a Monday evening and the postman delivered the antenna to my mailbox the following Friday. (I noticed as I was composing this post that stone_deng has raised the price for this antenna to $19.90 with free shipping.)

In comparing the replacement antenna with my original Sony part, the only difference I could see is that the metal tip of the replacement antenna is of a different style. Dimension-wise, the two antennas appeared to be identical.

Installation of the new antenna was simple. A single screw secures the antenna to the radio.

Remove this screw and pull the antenna straight out of the receiver.

It should be possible to slip the new antenna into the hole, twisting it to properly line up the mounting-flange, and run the screw back into place. In my case, the new antenna insisted on snagging on something inside the radio and I ended up removing the rear-panel entirely to install the new antenna rather than try to force the antenna into place. Fortunately, the rear panel is easily removed.

Remove the battery-cover and the four AA cells. Remove the five black Phillips-head screws that are marked on the rear panel with arrows. The rear panel will then lift straight up. Insert the new antenna into its hole, lining up the mounting flange with the screw-hole, and insert and tighten the screw. Carefully place the rear panel into place, lining up the four screw holes, and insert and tighten the five screws. Re-insert the AA cells and replace the battery cover.

I’m hopeful that this non-OEM antenna will prove to be rugged but time will tell. If this antenna proves to be inferior than the original in some way, I will post a follow-up to this post.

Obligatory disclaimer: I don’t know stone_deng, and I don’t have any financial interest in his company or products.

Eric McFadden (WD8RIF) is the author of this post and a regular contributor to the SWLing Post. Click here to visit Eric’s website which features QRP operation. Eric is based in Athens, Ohio.

Spread the radio love