Monthly Archives: November 2015

WWV History: Richard’s QSL cards

Sign from the original WWV tranmitter site in Maryland, currently posted outside of the Fort Collins, Colorado transmitter building. (Photo: Thomas Witherspoon)

Commenting on our post about Myke’s new release of At The Tone, SWLing Post contributor Richard Langley writes:

I must have first heard WWV shortly after putting together the Knight-Kit Span Master I received for Christmas 1963. I still have my log books from my high school days, which include an entry for Radio Habana on 29 December 1963 for which I subsequently received a QSL card. But I guess I didn’t log all my receptions. The first entry for WWV is dated 3 June 1966 in the last year of WWV’s operation from Greenbelt, Maryland (on government land that subsequently became the site of NASA’s Goddard Space Flight Center).

I have a QSL card for the reception of the 5 MHz signal featuring a drawing (in pink) of the Jefferson Memorial [see above].

The next entry is dated 1 December 1966, the first day of WWV’s operation from Fort Collins, Colorado.

I have one of the special QSL cards issued for confirmation of first-day reception for my report on the 20 and 25 MHz signals [see above].

I’m sure I heard WWVH early on too but my first log entry is dated 29 March 1967. I never did QSL them.

Richard: Thanks so much for sharing these special QSL cards. Wow! I had never seen the first day card from WWV Fort Collins before–what a treasure you have there!

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Paul’s SWLing videos

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Many thanks to SWLing Post reader, Paul Walker, who writes:

I think you and your readers might enjoy these videos.

I’ve upgraded from a Tecsun PL880 and Sangean ATS909X to a JRC NRD535D. I live in Camden, Arkansas which is in southern Arkansas, 75 minutes east of Texas and 75 minutes north of Shreveport, Louisiana

When DX’ing on shortwave, I often record a short video with my iPhone 6plus held up close to the radio so you can see the frequency and signal level meter.

I record videos anywhere between 20 seconds and 5 minutes depending on what I feel like at he moment and what I will be using the video for. Sometimes I record a shorter video to post on Facebook then record longer audio via an MP3 recorder in my phone to use in a reception report.

Sometimes I record long 3-5 minute videos and send those to the station instead.

I don’t record everything I hear but what I feel is a worthwhile catch or is interesting. My videos can be seen here:

https://www.youtube.com/user/OnAirDJPaulWalker

https://youtu.be/FfoakB1VIoI

Thanks for sharing a link to your videos, Paul! You’ve got some good catches in your library. That JRC NRD535D is a great receiver, too–noise floor seems quite low!

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FCC: Remarks on the Growth of Pirate Radio

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Many thanks to SWLing Post reader, Bob, who writes:

Remarks on the Growth of Pirate Radio from FCC Chairman Tom Wheeler, testimony before the House Energy and Commerce Committee, Communications and Technology Subcommittee, November 17, 2015:

“I know that this committee is concerned about pirate radio. During my tenure we have taken 280 enforcement actions against pirate radio, that’s in the last two years. Commissioner [Michael] O’Rielly has been a real leader in keeping us focused on this. We’re working with the NAB [National Association of Broadcasters] on a joint task force on pirate radio. But we need more tools.

“We’re playing whack-a-mole with pirate radio. Every time a pirate radio station pops up, we whack it. We need to have consequences for those who facilitate those stations popping up. The landlords who look the other way, because helping pirates is risk-free.

“Congress could make it illegal to aid or abet pirate radio operations. Denying them the opportunity to operate in this way would be a significant means of thwarting the continued growth of pirate radio.”

http://energycommerce.house.gov/hearing/oversight-federal-communications-commission-1

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Video: Shortwave listening and radio astronomy

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On Thursday I attended an event at the Pisgah Astronomical Research Institute (PARI)–location of the 2015 SWLing Post DXPedition.

During a break, I had a couple of free hours, so I reached in my messenger bag and pulled out the Sony ICF-SW100: a radio that has quickly surpassed all others as my favorite EDC (everyday carry) radio. It has so many useful features in such a small package!

Radio astronomy observatories are ideal locations for impromptu shortwave radio listening as there is little to no radio interference/noise present.

PARI’s “Building 1” and the 26 West (left) and 26 East (right) radio telescopes.

While the weather on Thursday was gorgeous, HF band conditions were…well…miserable. There was very little to hear other than China Radio International, Radio Havana Cuba and a few other blow torch broadcasters.

Still, time signal station WWV was on my mind since I had just purchased Myke’s new edition of At The Tone and have been reading your excellent comments with early memories of listening to WWV and WWVH.

I tuned to 15 MHz and, of course, there was reliable WWV in Fort Collins, Colorado on frequency. Though WWV’s signal was relatively strong (despite the conditions) I turned on the SW100’s sync detector because fading (QSB) was pronounced at times.

Here’s a short video of the ICF-SW100 on a picnic table in the middle of the PARI campus. That’s PARI’s 26 (meter) West telescope in the background:

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Scott’s Elecraft KX3 Go-Box

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Many thanks to Scott (AK5SD) who shares the following photos and bill of materials for his custom Elecraft KX3 go-box:

Bill of materials

The panel was custom laser cut by Front Panel Express. I have the CAD
file and I’m willing to share it with anyone who wants to reproduce my effort.

Amazon.com
Case B&W Type 1000 Outdoor Case with SI Foam
You won’t use the foam, so you can buy the version without it if you can find it cheaper.

Battery Anker Astro Pro2 20000mAh Multi-Voltage (5V 12V 16V 19V)
Portable Charger External Battery Power Bank
Avoid look alike batteries and the next generation model from Anker. The newer Anker
battery is only capable of delivering 1.5A from the 12V supply. Two look alike batteries
I tried did not have the auto-off feature that the Anker does.

Vetco.net
ACC2 and I/Q Jacks 2 x 2.5mm Stereo Jack Panel Mount (PH-666J-B)
Phone, Key, and ACC1 3 x 3.5mm Stereo Jack Panel Mount (High Quality) (PH-504KB)
Mic Jack 1 x 3.5mm 4 Conductor Jack Panel Mount (PH-70-088B)
12V IN and CHG IN 2 x 2.1mm DC Power Panel Mount Jack (PH-2112)
12V OUT 1 x 2.5mm DC Power Panel Mount Jack (PH-2512)

You also need plugs and wire for interconnects. I bought some 2.5mm (CES-11-5502)
and 3.5mm (PH-44-468 for stereo, PH-44-470 for 4-conductor) audio cables with right
angle plugs and just cut them to use for the signal lines going to the KX3. I did the same
thing for the 2.5mm (PH-TC250) and 2.1mm (PH-TC210) power cables. A couple of
caveats are in order. The Phone, Key, and ACC1 interconnects require low profile
right angle connectors. The cables I listed above won’t work. Vetco part number
VUPN10338 will work. The power cables I’ve listed above use 24 gauge wire. This
is a little light, but the runs are small so I think it is OK. You can use higher gauge
cables if you can find a source.

USBfirewire.com
USB OUT USB 2.0 Right Angle Extension Cable (RR-AAR04P-20G)

Digikey.com
L Brackets 8 x Bracket Rt Ang Mount 4-40 Steel (612K-ND)
These L brackets are used to mount the KX3 to the panel and the panel to the case.
For mounting the KX3, I use a little piece of stick on felt on the bracket to protect the
KX3’s cabinet from damage. Replace the KX3’s screws with #4-40 Thread Size, 1/4”
Length Steel Pan Head Machine Screw, Black Oxide Finish (see below). For the panel
mounting, use #6-32 Thread Size, 3/16” Length self tapping sheet metal screw. You
may need to cut the tip off in order to not puncture the outside of the case.

RG316 BNC Male Angle to BNC Female SM Bulkhead Coaxial RF Pigtail Cable (6”)
This is not the original interconnect I used for connecting the KX3’s antenna output to
the panel. However, I think it is a better option for new designs. The caveat is that you
will need to verify the hole in the panel matches the bulkhead connector on this cable.
There will be a little loop in the cable when you are done, but that is fine.

Micrfasteners.com
Screws for Sound Card 2 x FMSP2510 – M 2.5 x .45 x 10mm
Screws for KX3 Bracket Mount 4 x MSPPK0404 – 4-40 x 1/4
Screws for Countersunk Panel Holes 8 x FMPPK0403 – 4-40 x 3/16
Screws for USB Connector *** 2 x FMPPK0406 – 4-40 x 3/8

I’m pretty sure these are the right length for the USB connector. I am doing it from memory.

Amazon.com or eBay.com
Soundmatters foxL DASH A Wireless Bluetooth Soundbar (OPTIONAL)

Sonoma Wire Works GJ2USB GuitarJack 2 USB Portable Audio Interface (OPTIONAL)
(Make sure you get the USB model, not the 30-pin model.)

This is optional if you want a built-in sound card interface for a waterfall display using iSDR. Make sure to eliminate the holes in the upper left corner of the panel if you are not installing. You will also need 2.5mm x 10mm screws to mount this to the bottom of the panel (see below).

bhi Compact In-Line Noise Eliminating Module (OPTIONAL)

In my opinion, the KX3’s noise reduction is totally ineffective for SSB communications. This external noise reducing DSP is one solution, albeit an expensive one, to that problem. It is only for SSB, not CW or digital modes. It is also available from GAP Antenna Products.

Scott: you have done a beautiful job here and have spared no expense to make a wonderfully-engineered and rugged go-box. No doubt, you’re ready to take your KX3 to the field and enjoy world-class performance on a moment’s notice.

Though I’ve never used them personally, I’ve noticed others who have taken advantage of the Front Panel Express engraving service–certainly makes for a polished and professional front panel.

Again, many thanks for not only sharing your photos, but also your bill of materials which will make it much easier for others to draw inspiration from your design!

Speaking of designs, when I looked up Scott on QRZ.com, I noticed that he also sports a QSL card (above) designed by my good friend, Jeff Murray (K1NSS). Obviously, Scott is a man with good taste!

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