Monthly Archives: March 2016

The Icom IC-R75 is being discontinued

I’ve learned through a couple of sources that the Icom IC-R75–which has been a staple tabletop shortwave receiver for 16 years–is being discontinued by Icom. Here’s what Dave Zantow (N9EWO) announced on his website:

“Last Call” ICOM IC-R75 Table Top HF Receiver : Yes, it’s true and is not a misprint (news as from a solid reliable source) , Icom has discontinued the IC-R75 HF receiver. It had a great 16 year run on the market. I would NOT look for Icom to replace the model. As I type this entry most US Icom dealers had limited remaining stock. But you can count on those to get slurped up fast !! So if you ever desired a NEW sample, you MUST do that NOW !!

Only a few weeks ago, in my presentation at the Winter SWL Fest, I noted that the IC-R75’s days–as one of the last “legacy” tabletop receivers–were certainly numbered. Since the R75’s introduction, a lot of the receiver market has shifted to SDRs and SDR-based tabletops (like the CommRadio CR-1a).

The IC-R75 must have one of the longest runs (with various iterations) of any tabletop receiver ever on the market–most impressive!

Universal Radio has a special package price of $619.98 for the IC-R75 which includes the DSP option and Joe Carr’s antenna book and free shipping. Click here to view on Universal Radio’s website.

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Mike’s Virtual Audio Cable (VAC) promotion

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SWLing Post contributor, Mike Ladd, has been working with vendors to lock in promotional pricing on products and accessories commonly used by SDR enthusiasts. Last week, for example, he shared an excellent promotion for high/low pass filters.

This time, Mike has reached out to the author of Virtual Audio Cable (VAC) who has also kindly offered a discount.

VAC is a fantastic piece of software that allows you to port audio from one application to another on your PC without loss of audio quality. For example, if you’re running an SDR and you want to port its audio to FLDigi (to decode SSTV, RTTY, PSK31, or another digital mode) VAC does this for you.

Mike’s discount allows you to purchase a self-support copy of VAC for $21.42 US (a $3.78 discount).

To get the promo price, you’ll need to use this link which has the embedded coupon code, then simply make the selections as shown below:

Click here to purchase VAC with promotional pricing.

Thanks again, Mike, for sharing discounts with the SWLing and ham radio communities!

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Empire of Noise: a documentary about jamming

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Many thanks to SWLing Post contributor, Gary Wise (W4EEY), who writes:

I stumbled over an interesting documentary on radio jamming. You have probably seen it, but just in case you haven’t, here is a link.

I had not seen this before, Gary. Thank you!

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Tuning the Scott Marine SLR-M at sea

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Many thanks to SWLing Post reader, Vendel Boeree (K2DSI), who writes:

Hi Tom, I just wanted to compliment you on your fine website. As a kid I would listen to Radio Netherlands which made me quite the hit with mom because she was homesick for our native Holland for quite some time. I was heart broken to find out that Radio Netherlands went dark not that long ago.

Back in 1967 my family moved to Australia and went there by freighter. Things didn’t work out as planned and we returned on an old American freighter, the “African Moon”.

I became friendly with the radio operator on that ship and he let me shortwave listen when he was off watch. The receiver was a “Scott” and appeared to be the same as yours. They also had a “Scott” receiver in the lounge that had a slide rule dial that was used for entertainment purposes. I was hooked. I wanted to be a radio operator.

Needless to say I didn’t follow through on that dream and I suppose that’s just as well seeing as how ROs are a thing of the past.

Take care and keep up the good work.

Vendel Boeree/ K2DSI

Thanks so much for sharing those memories, Vendel! I bet reception was nothing short of amazing while you were at sea. I’m guessing the slide rule model Scott you listened to in the lounge was the model SLR-F (click here for a photo).

Just the other day, my wife looked around my radio shack and asked what radio I would grab if the house were on fire. My answer was the Scott Marine SLR-M. It represents everything I love in WWII era receivers: built like a tank, great sensitivity, beautiful back-lit dial, built-in speaker, phono in, a magic eye and–since it was intended as a troop morale radio–beautiful room-filling audio.

Yep. Scottie’s a keeper!

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Google’s 96.4 kilowatt experimental transmitter

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Many thanks to SWLing Post contributor, Dan Robinson, for sharing the following story:

(Source: Hackaday)

[…]In a publication released last week, Google asked the FCC to treat some information relating to radio experiments as confidential. These experiments involve highly directional and therefore high power [96.4 kilowatt] transmissions at 2.5 GHz, 5.8GHz, 24GHz, 71-76GHz, and 81-86GHz. These experiments will take place at Spaceport America, a 12,000 foot runway in the middle of New Mexico occasionally used by SpaceX, Virgin Galactic, and now Google.

For the most part, this document only tells the FCC that Google won’t be causing harmful interference in their radio experiments. There few other details, save for what bands and transmitters Google will be using and an experimental radio license call sign (WI9XZE) that doesn’t show up in the FCC database.[…]

Read the full article at Hackaday…

Click here to read FCC File No. 0142-EX-PL-2016 (Google Public Redacted Version).

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FCC Commissioner outlines 2016 anti-pirate agenda

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Many thanks to an anonymous SWLing Post contributor who writes:

The FCC released this material [yesterday]. It consists mainly of letters to various organizations to ask their members to avoid cooperating with unlicensed radio stations.

The concern is that real estate owners may be harboring unauthorized stations, and that businesses may support such stations with advertising funds.

I would point you to an interesting opinion on the subject by Prof. John Anderson:

O'Rielly Outlines Anti-Pirate Agenda for 2016

John references this recent YouTube video clip of a Congressional hearing where FCC Chairman Tom Wheeler is questioned on the FCC’s enforcement efforts:

Again, I am not the source of the following material–the FCC is:

STATEMENT OF COMMISSIONER MICHAEL O’RIELLY ON PIRATE RADIO ENFORCEMENT ADVISORY.

STMT. News Media Contact: Robin Colwell at (202) 418-2300, email: [email protected] OCMO https://apps.fcc.gov/edocs_public/attachmatch/DOC-338021A1.docx
https://apps.fcc.gov/edocs_public/attachmatch/DOC-338021A1.pdf

Released: 03/01/2016. FCC ENFORCEMENT ADVISORY: PERSONS OR BUSINESSES OPERATING “PIRATE” BROADCAST STATIONS ARE SUBJECT TO ENFORCEMENT ACTION. (DA No. 16-159) This Enforcement Advisory discusses the rules that prohibit “pirate” radio, explains to the public at large what broadcast actions are illegal, why such activities may harm the public, and what do to in case someone suspects “pirate” broadcasts. EB . News Media Contact: Will Wiquist at (202) 418-0509, email: [email protected]

Note that the bulk of this report focuses on FM/AM radio pirates in local markets rather than shortwave pirates (though I’m sure, on occasion, shortwave pirates are on the FCC radar).

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Raspberry Pi 3 Available

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“Just when you thought it was safe to go back in the water . . .” From the Raspberrypi.org Blog blog comes news of a new board with greater processing speed and integrated hardware.

“In celebration of our fourth birthday, we thought it would be fun to release something new. Accordingly, Raspberry Pi 3 is now on sale for $35 (the same price as the existing Raspberry Pi 2), featuring:

A 1.2GHz 64-bit quad-core ARM Cortex-A53 CPU (~10x the performance of Raspberry Pi 1)
Integrated 802.11n wireless LAN and Bluetooth 4.1
Complete compatibility with Raspberry Pi 1 and 2

“The 900MHz 32-bit quad-core ARM Cortex-A7 CPU complex has been replaced by a custom-hardened 1.2GHz 64-bit quad-core ARM Cortex-A53. Combining a 33% increase in clock speed with various architectural enhancements, this provides a 50-60% increase in performance in 32-bit mode versus Raspberry Pi 2, or roughly a factor of ten over the original Raspberry Pi.

“Raspberry Pi 3 is available to buy today from our partners element14 and RS Components, and other resellers. You’ll need a recent NOOBS or Raspbian image from our downloads page. At launch, we are using the same 32-bit Raspbian userland that we use on other Raspberry Pi devices; over the next few months we will investigate whether there is value in moving to 64-bit mode.”

At $35 these computers are a steal, and now with Bluetooth and Wireless built in, they are even more affordable. I have a Raspberry Pi 2 already, but I have a feeling one of these will end up in my shack before too long!

Robert Gulley, AK3Q, is the author of this post and a regular contributor to the SWLing Post. Robert also blogs at All Things Radio.

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