| Author |
Message |
    
Sg569
Member
Username: Sg569
Post Number: 92
Registered: 12-2004
| | Posted on Friday, February 18, 2005 - 6:27 pm: | 
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Cobra XL 250, blue face, works on am, fm,ssb,cw; has a rotary knob for low, med, hi, and max. Seperate sw. for pwr, pre-amp, and am/fm ssb/cw.
Here's the prob. the amp sticks in a full on transmit if you key down w/ the amp on hi or max.
Yet if you key down w/ the amp on low, or med it works properly, not my amp, buddy wants me to fix it, he sometimes uses it on high, or did when it was working. Any info on this prob would be a great help, I really don't want to replace the relay unless I have to.
Thanks,
Walter |
Usa2112
Junior Member
Username: Usa2112
Post Number: 17
Registered: 2-2005
| | Posted on Friday, February 18, 2005 - 11:08 pm: |
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CHECK YOUR SWR!!! Reflected energy holding the relay. |
Racer_x
Junior Member
Username: Racer_x
Post Number: 10
Registered: 2-2005
| | Posted on Saturday, February 19, 2005 - 8:54 am: |
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It's not the relay if it doesn't happen on all power levels. It's probably just RF leaking into the jumper between the radio and the amp. Try a different jumper and see if it still happens. Grounding the case of the amp might fix it too. |
Pig040
Advanced Member
Username: Pig040
Post Number: 695
Registered: 7-2003
| | Posted on Saturday, February 19, 2005 - 10:01 am: |
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Racer X I had a similar problem, and I found a bad jumper that cured it! Good advice.
Rich |
Sg569
Member
Username: Sg569
Post Number: 95
Registered: 12-2004
| | Posted on Sunday, February 20, 2005 - 12:48 pm: |
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grounding it didn't work, I'll have to make a new jumper and see if that works.
Thanks for the info guys. |
Sg569
Intermediate Member
Username: Sg569
Post Number: 102
Registered: 12-2004
| | Posted on Monday, March 07, 2005 - 2:30 pm: |
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ok just tested this amp on air, and was told that my signal dropped, could this be a transistor prob??
Thanks sg569 |
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