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|    AMATEUR_RADIO    |    Ham radio for when Armageddon strikes    |    2,531 messages    |
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|    Message 640 of 2,531    |
|    Holger Granholm to Ed Vance    |
|    Re: Your First SSB XMTR    |
|    17 Jun 14 10:11:00    |
      In a message dated 06-13-14, Ed Vance said to Holger Granholm:              GM Ed,              EV> I was thinking the other day about You saying that You built       EV> a SSB rig in the early 1950's.              Correct, this is the SSB history of Finland and the Aland Islands:              History Starts here ......              I have been licensed since 1951 and operated CW, AM and NBFM prior       to the SSB era.              I started the SSB era as OH2OJ in Finland 1955 by building a phasing       exciter similar to the Central Electronics 20A using the PS-1 phase       shift unit. The outboard VFO came from a BC-458 surplus transmitter.       With this rig I came on the air on nov. 26th 1955 as first OH on SSB.       In 1956 I built a Sideband Slicer la Central Electronics as an       addition to the Geloso G-207 receiver and also a 150 W Power amplifier       with a 4-65A tube.              1957 I built my second SSB transmitter, the "Cheap and Easy S.S.B." as       described in QST by W2EWL in the march 1956 issue. Also a phasing rig,       built on the chassis of a surplus BC-458 transmitter with only the VFO       and PA tubes remaining. The AF phase shift unit was a B&W 2Q4.              The receiver for this station was a surplus BC-453 receiver with an       outboard 14 MHz converter. I used this station to put OH0 on the SSB       map as OH2OJ/OH0 in the summer of 1957. The same year in november I       moved permanently to OH0.              END of history ---------              EV> I'd think You used the Phasing circuit, as the Central Electronics       EV> 10A, 10B and 20A SSB Transmitters did.              The first SSB exciter/transmiter used the CE Phase Shift Network and the       second used the B&W 2Q4 Phase shift network.              EV> Some AM'er didn't like it a bit.              Well, locally I was called Donald Duck but that was all.              EV> Back then, was it like that in Europe as it was with some AM'ers in       EV> the U.S.A., like the one Ham I met on the Navy Base that hated SSB       EV> with a passion?              Most stations i was talking to were americans stationed in Germany after       the war. Some early SSB starters in various countries were also worked.              EV> When someone used SSB on 80M around the Louisville, Kentucky area in       EV> the late 1950's, no one got excited about it, they just let the       EV> SSB'er do his 'Experimenting' and flipped their Beat Frequency       EV> Oscillator ON so they could hear what was said by the SSB'er.              I remember that I used the idle carrier of Radio Moscow on 40 meters       during some contests. There was no program sent during the night.              EV> Which made me want to ask You, does Your License allow You to use       EV> One Kilowatt of Input Power at Your QTH in the Aland Islands?              Well, I could update my license to 1 kW by just requesting it but I've       never felt a need for it. 100 - 200 Wo has always been enough and pse       remember; being in a rare country ups your signal several db.              EV> Oh, another thing came to mind as I was writing.       EV> My first experience using a Collins 32S-1 on CW made me think that       EV> That Collins XMTR was Illegal to operate on CW because it used an       EV> Audio Tone over the Supressed Carrier.              That has never been illegal here. With a well suppressed carrier the       only signal you hear is carrier.              73 de Sam, OH0NC              aka Holger              ___        * MR/2 2.30 * We learn from history that we do not learn from history.                     --- PCBoard (R) v15.22 (OS/2) 2        * Origin: Coming to you from the Sunny Aland Islands. (2:20/228)    |
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