| Author |
Message |
    
Rodder54
Member
Username: Rodder54
Post Number: 71
Registered: 12-2001
| | Posted on Monday, March 04, 2019 - 7:09 pm: | 
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i have a gray300 12 v amp it worked great in the house so i put it in my truck second day on high testing it on ssb it stays keyed with like a carrier only on ssb and high .i was thinking the power might be too much on driving it ,standing wave is low thanks any input will help thinking of ordering a dx99v2 to run the power down hate to spend the money if not needed, |
Scrapiron63
Advanced Member
Username: Scrapiron63
Post Number: 953
Registered: 12-2001
| | Posted on Tuesday, March 05, 2019 - 11:57 am: |
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You could be over driving it on SSB as most radios have a higher output on sideband. Does it run ok on low power on SSB, if so I would use it like that, you won't see that much difference on the other end anyway and it'll probably run cooler. I've seen this before in mobile amps with multiple power settings, one of them would hang the relays for some reason. Sometimes adding a jumper and wattmeter would correct it, which is crazy but I'm old and old school, if something worked I went with it. 
Scrapiron
CEF 108 |
Charliebrown
Advanced Member
Username: Charliebrown
Post Number: 668
Registered: 10-2002
| | Posted on Tuesday, March 05, 2019 - 12:46 pm: |
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WEll your ssb on the radio could be tuned wrong. The other that can go wrong is your switching transistor on the key up circuit could be bad and staying keyed up. One last thing is to much rf is getting back to the box where your antenna is to close to the box. What I would do is is run a ground from the box to the frame of the vehicle. Next run a separate ground from the radio to the frame. Also check to see if the body of the car or truck is grounded well to the frame. I suspect that the radio is mistuned. Most people always set everything wide open. big mistake. I had a radio tuned once ( not going to say who) and when I keyed the radio on ssb it had a steady carrier. So I check it for myself and low and behold everything was turned up wide open. So I tuned the radio myself. Fixed the problem. I will never pay another company to tune for me again. |
Rodder54
Member
Username: Rodder54
Post Number: 72
Registered: 12-2001
| | Posted on Tuesday, March 05, 2019 - 8:24 pm: |
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thank you you both and yes low does work fine thanks again. |
Charliebrown
Advanced Member
Username: Charliebrown
Post Number: 669
Registered: 10-2002
| | Posted on Thursday, March 07, 2019 - 9:58 pm: |
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If the radio in SSB mode is tuned correctly it should work on HIGH as well as low. Over tune SSB will cause this problem. Happen to me when I paid a so called tech to tune the radio before I go it. I had to retune SSB to get to work correctly. I can not tell you the tech location or company I had a friend that listen to me with just the radio on and it sounded so bad he could not tune me in or understand me until I had retune the radio. This is a common mistake that everyone in 11 meter's does. OVER TUNED OVER MODULATED BAD HARMONIC'S. |
Rodder54
Member
Username: Rodder54
Post Number: 73
Registered: 12-2001
| | Posted on Saturday, March 09, 2019 - 10:14 pm: |
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yes i checked and it was to high, i didnt want to change it so i had a 148gtl thats set lower and it works great on all modes thanks again everyone . |
Road_warrior
Senior Member
Username: Road_warrior
Post Number: 2476
Registered: 7-2004
| | Posted on Saturday, March 16, 2019 - 10:21 pm: |
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Awesome Rodder54!
Road Warrior / CEF 375
Tyrone, PA (Jim)
Local ch. 27.505 Am or LSB
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