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Author Topic: Icom 737 wont' trans on SSB.. help  (Read 1008 times)
K9CLW
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Posts: 1




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« on: July 31, 2010, 04:41:06 PM »

I just acquired my first HF rig, and Icom 737. I followed the manual's instructions to reset the radio. I have a dipole up and have been listening to K4CG on 14.250 for a while receiving the signal at a 5 9.

When I try to transmit on SSB, the RF out put doesn't move at all. When I press tune, the RF meter shows 100 while tuning. I have also tried 10 meters FM and it does seem to transmit, atleast the RF meter moves. Also tried AM and it appears to work.   I do have the mic gain up and the RF pwr up all the way.

Am I missing something simple? It just doesn't appear to transmit on SSB, upper or lower on any band.

73, Casey


NEVER MIND, ....

lol, stupid newbie me..... ok, I just didnt' understand SSB good enough and how it affects a meter compared to VHF.  ie, the meter doesn't move on SSB until you actually talk, unlike VHF where the meter moves with the carrier when you press the PTT.  I finally called the gentleman who sold it to me and he finally figured out what I was having a hard time understanding.
« Last Edit: July 31, 2010, 05:27:12 PM by Casey Wood » Logged
KE3WD
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Posts: 5689




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« Reply #1 on: July 31, 2010, 07:19:15 PM »

Good on you, Casey, for coming back and letting everyone know. 

Don't feel like the lone stranger on that one, either, it usually gets most noobs. 

Now you know. 

And that is what the hobby is really great for, the more you know, the more fun you can have with it. 

Keep on! 

73
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N6AJR
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Posts: 9912




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« Reply #2 on: July 31, 2010, 09:40:21 PM »

So true,  single side band means they removed the carrier and other side band from the am signal so no talk, no output.  for a rough indication tou can do the helloooooooooooo or a whistle so simulate a 2 tone signal, and hold it for a second or two, so the meter has a chance to catch up and stabilize its movement.   a typical meter will bounce around 30 or 40 watts on a normal ssb voice signal, ,  as you have found cw and fm  put out a carrier and show full swing on the meter.  We have just about all done this one a time or two.  the other one is grabbing the wrong end of the soldering iron, ....twice.. ouch.
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WW5AA
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Posts: 2086




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« Reply #3 on: August 01, 2010, 04:04:37 AM »

...and please check your out-put on a dummy load rather than whistling, grunting and burping over a DX station.  Shocked

73 de Lindy
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