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Messages - Andrew Yoder

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2131
North American Shortwave Pirate / Re: UnId 6925.2 AM
« on: September 11, 2011, 0158 UTC »
WBNY

2132
North American Shortwave Pirate / Re: 6925.20 lsb UNID, 01:10z
« on: September 09, 2011, 0121 UTC »
WBNY. Pretty late in the evening, so maybe a relay?

2133
Thanks for the link. Looks like the columnist has somewhat of an interest in pirates or at least isn't really opposed to most.

One question that I've wondered about for the 20 or so years since I've heard about RF fingerprinting. What do mods do to that fingerprint. For example, when Poet did all kinds of mods to his Valiant, it had to change the RF fingerprint. I would think that just changing a tube could conceivably change it. I'd like to see some full-out studies on this technique.

For example, two unmodified Viking Valiant II transmitters should have more similar fingerprints than a Viking Valiant II and a Knight T-150, for example. But, if one of those Viking Valiant II transmitters is heavily modded (audio and RF sections), I would think that it not only wouldn't have the same fingerprint anymore, but it probably wouldn't even be in the same "family" of fingerprints as other Valiant IIs.

I guess what it comes down to, for the cautious pirate, is: if pirates are also hams, they should operate on HF with ham-only equipment. I doubt that the FCC would be sitting around, trying to fingerprint every ham transmitter to see if they can match with a pirate signal, but an ounce of prevention...

2134
General Radio Discussion / Re: The FRN
« on: August 29, 2011, 2059 UTC »
Snow is better by the yard

2135
Equipment / Re: AN/FRR-22, FRR-23, etc.
« on: August 23, 2011, 0138 UTC »
Hi OW,
Thanks much for the info! I had no idea that I'd get an experienced answer right away! Yeah, the SP-600 is much easier to scan quickly through the bands than the R-390A. But I like SSB reception with the BFO in the R-390A MUCH better! I could get about zilch with the BFO on the SP-600 when I was messing around in the ham bands with it yesterday. This SP-600 is in fair condition. Dents & scratches, no cabinet, no dial lock, and the crystal control has been electronically disconnected. On the plus side, it seems to work really well: signals are strong, audio is loud, no problems with scratchy controls or "crunching" when changing bands, works fine on all filters and all bands. Also, it seems that all of the black beauty caps have been replaced (at least the ones in the underside of the chassis have been), but I haven't opened up the decks or cans to see if those have been replaced. One cosmetically weird thing about this one is that the apparently original paint on this is all medium gray--including the dial escutcheons.

Thanks for the info on the SRR-21. Really interesting stuff. Funny that it's not nearly as good as an SP-600 or R-390A. It looks like lab-grade equipment...and then 29 tubes? You'd think this would be a monster receiver. Now the soldered-in tubes? Just idiotic design for maintenance compared to the other two. I don't think I'll go out of my way to get one of those receivers!

Thanks again for the info!
Andrew

2136
Equipment / AN/FRR-22, FRR-23, etc.
« on: August 22, 2011, 2125 UTC »
I bought a Hammarlund SP-600-JX26 yesterday at a hamfest. While searching around a little for variations between the different versions, lot numbers, etc., I found some info on other military receivers that are interesting.

Specifically, the SP-600, R-388, R-390, R-390A, & R-392 are hugely popular receivers. But, I never see anything about the AN/FRR-22 & An/FRR-23. These are general-coverage receivers (but no AM or 160m) made by RCA with 29 tubes (!) from the early '50s. They seem to have some interesting features (6 filter positions, dimmer control on the front-panel lights, 2 headphone jacks, separate volume control for headphones, etc.)

I found a pic at: http://www.navy-radio.com/rcvrs/images/frr22-01.JPG

Anyone have one of these receivers or know why they don't seem to be for sale? Were they much more expensive than the R-390As and SP-600s of the day? Did they have a design flaw?

Thanks & have a great day!
Andrew

2137
North American Shortwave Pirate / Re: UNID - 11920khz @ 0430 UTC
« on: August 14, 2011, 1633 UTC »
I haven't checked out their full sked, but on a quick search, I see that HCJB uses 11920 kHz and they do broadcast in low German

2138
North American Shortwave Pirate / Re: Radio True North 6925 AM
« on: August 10, 2011, 1335 UTC »
I had someone here at about 0415 or so. Not strong enough to easily hear an ID. I've been hearing RTN, NRS, and Southern Relay Svc frequently in this time frame with similar signal levels. But I believe it was a few hundred Hz lower than 6925, which would probably mean that RTN came back on. Guess I'll have to check my recording more closely. It seemed to go off (or faded out) around 0530.

Thanks for the log!
Andrew

2139
General Radio Discussion / New Artem's World Music
« on: August 08, 2011, 1506 UTC »
I received this e-mail from Artem, a regular pirate DXer & program producer in Russia:

Hi all again,

Here:

http://www.sendspace.com/file/k2xq08

You can find my program prepared for relay by any pirate or just for listening of all who is interested in. It is dedicated to World Music. Hope, you'll like it.

Yours,

Artem

2140
It's great to see the CODAR move out of 60m, but I didn't realize that some channels were available for ham use!
I wrote to Josh Kohut a few years ago to complain about CODAR interference to tropical band stations. Thought you might like to read his very nice and informative response:

Andrew,

     Thanks for your interest in the site.  We at Rutgers operate 4 systems
along the New Jersey coast, one site on Block Island, and another on
Nantucket Island.

A few years ago when we started operating these systems we had some
communication with several shortwave radio listeners who asked that we try
and avoid the 60-meter band.  At that time we had four sites all operating
at different frequencies between 4.4 and 5.2 MHz.  The shortwave listeners
that we spoke with had the same request as you, to stay below 4.8 MHz.  So
in our applications to the FCC we applied for frequencies below 4.8 MHz as
well as the 4.8 MHz band.  We kept the 4.8 MHz band in the license because
that is a frequency that the FCC has asked to use in the past.

Since that time CODAR Ocean Sensors (the manufacturer) has developed some
new hardware/software that allows us to operate many sites at the same
frequency, without any interference.  This is great for everyone because the
4 frequencies we were occupying for four sites reduced to one frequency.  It
uses GPS timing (pretty cool stuff).

Up until this past summer we were able to operate all of our four sites in
New Jersey at 4.55 MHz and the two sites in New England at 4.47 MHz (well
below 4.8), taking advantage of the GPS synchronization.  This changed when
the FCC instructed us to discontinue our use of the 4.47 band and switch to
another frequency.  Our only other choice in the license was the higher
frequencies (around 4.8 MHz).  So we had to move the sites in Block Island
and Nantucket to 4.8.

We are only one out of several groups around the US (including Gulf of
Maine, Gulf of Mexico, San Diego, Monterey Bay, and the Gulf of Alaska) who
are operating these systems.  I am not sure how many of these other sites
are operating with frequencies in the upper 4 MHz region.  The interference
in Texas could be from any of these stations (including us).

These stations are being used by a diverse user group including us (the
geeky scientists), the Coast Guard, NOAA Hazmat, local police, k-12
education.  Because of the large user base, these systems are beginning to
multiply along the coast.  With this large number of systems being deployed,
there is a need for us, as a community, to explore primary bands with the
FCC.  These bands would include frequencies that you suggest (4.4-4.7 MHz).
This way we can't be kicked off like we were last summer.  This is a long
process, we have to go beyond the FCC to the ICU for approval.

Our intention is certainly not to interfere with your transmissions.  We
have tried in the past and will continue to try to work with shortwave
listening community so that we can both operate without interference.  If
you have any more questions, please do not hesitate to ask.


Regards,

     Josh

2141
General Radio Discussion / Re: SPY VS. SPY 20th CENTURY STYLE
« on: August 02, 2011, 1207 UTC »
But were their cupcakes tasty?

2142
Hi Flibustier,
Sorry to reply here, but I don't have your e-mail address and I didn't see it in your profile. Could you send any information about your station for the 2012 edition of the Pirate Radio Annual to ayoder at hobbybroadcasting dot com  ? or

Andrew Yoder
POB 109
BRS, PA 17214
USA

Sorry I missed your show last night. I went up to the radio room & heard Captain Morgan blasting in on 6950, but unfortunately I didn't tune in any earlier.

Thanks for broadcasting & have a great day!
Andrew

2143
North American Shortwave Pirate / Re: UNID 6925u
« on: June 25, 2011, 1305 UTC »
Hi Lance,
This was KARR. Very few IDs & those that were played were electronic & difficult to copy unless you had a great signal.

2144
Cabinet Communications or Andrew Yoder...either will work.

Thanks!

2145
Update: After a few weeks of printer delays, the boxes of books finally arrived last night at 6. I printed some labels & have just started assembling & packing up the books. It'll probably take me a few days to get them all ready and out the door, but I hope to have most done tomorrow.

So, if you ordered and you're from the Northeast, expect your copy early next week. My guess is mid-week or late next week elsewhere. If you didn't order and want to, there are plenty of copies available right now :o)

Thanks!

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