29 ltd maybe oscillation issue help

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1iwilly
Dead Key
Dead Key
Posts: 10
Joined: Sunday 4th Jul 2010, 11:53
First Name: jose
Location: florida

29 ltd maybe oscillation issue help

Post by 1iwilly »

Radio Make and Model: cobra 29 ltd classic side mike
PLL Number:
Test gear available: bird meter 1000 hz tone generator ,soldering iron, digital meter ,300 watt dummy load
Symptoms: when checking power output on my 29 ltd with a 1000 hz tone and the top cover is on i see 9 watts rms from 2 watts dead key while watching the meter and i take the top cover off the watts drop off to 7 watts like if the radio was going in to oscillation.???
what do i need to look at that would cause this problem with the cover on then off different readings .????

What is working: everything is working

What has been tried: resoldering all the questionalble spot

Did it suddenly happen ?: about a week ago
Anything else that may be of help?: when use in the mobil with an amp it makes the amp show relfect it read 25 watts of reflect on the bird meter when audio is applied it swing back down to where it use to be at 2 watts. it never had this issue until a week ago amp is not in question here as when other radios are use it reads fine.
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