| Author |
Message |
    
Smoken_joe
New member
Username: Smoken_joe
Post Number: 2
Registered: 10-2006
| | Posted on Wednesday, November 29, 2006 - 9:39 pm: | 
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when i key up and talk it talk backs through the amp and sounds muffled up. 3 watts dead key 25 swing input. any help |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 3403
Registered: 7-2004
| | Posted on Friday, December 01, 2006 - 3:56 pm: |
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lowering the 25 watt input would be a start....maybe even the dead key another watt down or so. |
Smoken_joe
New member
Username: Smoken_joe
Post Number: 4
Registered: 10-2006
| | Posted on Saturday, December 23, 2006 - 12:41 am: |
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no help still has the talk back through the amp |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 3434
Registered: 7-2004
| | Posted on Saturday, December 23, 2006 - 9:31 am: |
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bad coax jumper between box & radio, high SWR, too much modulation, bad coax between amp & antenna, poor/no ground, bad speaker transistors, could be any of a number of causes  . |
Hotwire
Senior Member
Username: Hotwire
Post Number: 2144
Registered: 1-2005
| | Posted on Saturday, December 23, 2006 - 2:51 pm: |
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Confirming that your drive power is set right be sure that your using fresh qaulity coax with PL259's soldered properly. The shield must be soldered well to the PL259. Be sure that your swr is acceptable. Very important to have proper RF grounding. Ground the box to chassis. Make sure antenna is grounded well to vehicle. Try moving the antenna to another location, none of the antenna against the side of the vehicle, feedpoint above the vehicle or as high as possible. If you are using a power mic give a noise canceling non amplified mic a try. All power wires as short as possible and all power wires hooked up directly to the battery. Hope I can help.
kenny
cef491 |
Mojo
New member
Username: Mojo
Post Number: 6
Registered: 10-2007
| | Posted on Monday, December 03, 2007 - 4:23 pm: |
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Ground Every Thing!!!! Engine to frame, chassis to frame, radio to chassis, amp to chassis. The best place to ground a radio and amp is with the bolt on the seat mount. They go right to chassis and in some cases frame. |
