Tuesday, September 28, 2021

September 28, 2021 - No comments

Ham Radio From Greece, 1973-74

 In 1973 and '74 I used the MARS* station (SV0WY) at the US Air Force base in Athens, Greece, when flying from Rota, Spain to various ships on Navy TAD* (DIRSUP)* trips. I was a Navy Cryptologic Technician, Maintenance (CTM3). The Air Force C-130 cargo planes that we used to transport the NavSecGru QUIC Vans to other ports for installation on Navy destroyers usually flew to Athens from our base at NSGA Rota.

Being Navy (not Air force) they wouldn't give me a key to the station so once in there I had to stay all night with no trips out for food, but a sacrifice worth all the fun!! Lots of paper logs, the Air Force MARS operator (a non-ham) told me I had to answer all the QSL cards that came for my radio contacts myself, ha..  I had to have QSL cards to send back printed, too.

The station had no straight key or any way to send Morse code and get on CW.  When I got on 20m SSB (voice) it was always a huge pileup, SSB wasn't the norm from everywhere yet (in 1974) and even Greece was fairly rare on SSB.  I've always been a CW op and didn't really enjoy fone operating but what the hell, you have to have fun where you can !!  The beautiful Collins S-Line radio and 30S-1 amplifier to a big log-periodic antenna aimed at the US did just fine even at the bottom of the 11 year solar cycle!!


  The "pileups" were incredible.  I had been a licensed ham since 1968 but had never operated fone, only CW (Morse code).  The first time I was there the AF guy showed me how to tune up the radio and the big amp, got things setup on 20m and he went home.  I tuned around the band and listened to two loud stations talking on the East Coast, I broke in and said hello from Greece!  They were shocked and happy to include me in their conversation, and one of them warned me that I would have LOTS of people calling when we finished and they signed off.


 He sure was right, dozens of people called and I started making short contacts and trying to copy callsigns out of the mess of stations calling, all calling at the same time, of course.  I worked a few people but it was getting worse and worse, so I called one of the two I had originally talked to.  He was still there, listening, so I told him "I'm a CW op, how should I handle this big fone pileup??!!".  He said to try going by call districts, work a few from 2 district, then move on to 3, maybe try 1, keep moving around to work a few from each part of the US as the propagation allowed.  Whew, that's what I did and I got experience with operating a SSB pileup for the first time...


 As it turned out, Greece wasn't as rare as where people THOUGHT I was operating from.  Normally the SV0 (zero) radio prefix is assigned to the islands of Crete and Rhodes, which were VERY rare to contact on the radio.  For some reason, the US military station in Athens was also assigned the SV0 prefix, and the huge pileups were because people thought I was on one of those islands.  So once I figured that out, I changed it so I always said the callsign as "SV0WY Athens", almost as if the Athens was part of the call.  It helped a little bit, but as noted before, Greece itself was fairly rare on SSB in 1973 and '74, even for other European hams.

Each time I traveled through Athens in 1973 and '74 I stopped at the MARS station to get on the air for a while.

*MARS - Military Affiliate Radio System, where military radio ops use amateur radio to pass messages from overseas locations to the US, many times making "phone patches" so soldiers, airmen and sailors could talk to their families at home.

*TAD - Temporary Additional Duty, other work away from your regular duty station.

*DIRSUP - Direct Support, where teams of operators with special training in intercepting various kinds of radio signals would be on a Navy ship to give extra intelligence to the Captain of the ship that he couldn't get from the normal equipment on Navy ships.


Friday, September 3, 2021

September 03, 2021 - No comments

DIRSUP (Direct Support) TAD Trips in the Navy, 1970's

  Our Navy DIRSUP shop in Rota, Spain put the SecGru 'QUIC vans' on a lot of FRAM-2 destroyers (affectionately called tin cans by destroyer sailors), we always "hid" them in the then-unused DASH hanger. We even tied into the 15 kHz IF of the ship's sonar and used a VLF receiver to tune it and listen to the Russians underwater "Gertrude" voice comms between their ships and subs.  We didn't transmit from our vans, receive only from VLF thru UHF, monitoring mostly Russian radio communications.

USS Brumby DE-1044, Indian Ocean.  The van was inside the hanger at rear of the ship.

 

QUIC (for Quick Intercept Capability) Van, Cryptologic Technicians' home aboard ship.

R-1401 VLF/LF Receiver, 1 Khz thru 600 Khz. Tied into ships SONAR receiver IF

 One FUN thing I did while on a ship for a few months was to sit the CTR posit while they got Midrats. The CT team on a destroyer would only have 2 guys to copy CW (the CTR rating). They stood Port and Starboard watches (something like 4 hrs on, 4 hrs off), usually copying Russian ships checking into their ship-to-shore nets, or CW signals from local countries in Africa, some were police nets on CW. At sea I didn't have much to do unless some equipment broke, so being a ham that only used CW, I helped them by sitting their posit to give the ops breaks, once they taught me the format they used for copying all the signals on a mill. At night I would copy the Russian traffic on an electric mill for the op on duty so he could get Midrats, the other CTR would be sleeping.

R-390A HF receiver

    Otherwise my job was to babysit the gear and fix things, and teach new ops on their first trip how to operate the shipboard equipment. Most CT ops (CTO, CTT, CTI types) never saw that stuff at the shore stations. 

KW-7 TTY Crypto
 
KW-7 showing plugboard wires.  The wire jumpers were changed each day to implement a different encryption (and decryption) "key" combination.

 We got all the screw-ups on the TAD trips, they were sent out on the ships as punishment. Unfortunately it actually was my job to go TAD on the ships. We had a separate shop inside the big Wullenweber HFDF antenna array at Rota where we repaired and did PM's on equipment from the vans when they weren't on a destroyer.