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Bloodyspirit058
New member
Username: Bloodyspirit058

Post Number: 1
Registered: 11-2019
Posted on Wednesday, November 27, 2019 - 11:57 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I have a cobra 146 I picked up on ebay that I've been trying to straighten out. When first turned on everything seems fine (rx and tx work). But after a while the tx cuts in and out (needle on the swr meter while reading power goes from showing power to showing 0 and than back when power returns, this is confirmed with another mobile setup). As far as I know the radio is stock but I'm not 100% sure, it doesn't seem to have any switch mods or anything done to it. Radio does this in mobile with a firestick antenna and coax as well as when hooked to home made loop antenna and a spare atv battery (mobile works fine with a cobra 29). I have this issue on am/lsb/usb.
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Tech833
Moderator
Username: Tech833

Post Number: 2444
Registered: 8-2002
Posted on Tuesday, December 03, 2019 - 11:21 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Sounds like it could be dried out electrolytic capacitors. Changing them would not be a job for the faint of heart.
Your radio 'Mythbuster' since 1998
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Bloodyspirit058
New member
Username: Bloodyspirit058

Post Number: 2
Registered: 11-2019
Posted on Wednesday, December 04, 2019 - 6:06 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Ya, I was hoping it wasn't that, guess I'll give replacing them a try and see what happens. (I'd guess they've been replaced once, is there a source to see what spec one's I need or should I just get a kit and have at it?)
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Mrnobody
Intermediate Member
Username: Mrnobody

Post Number: 103
Registered: 6-2003
Posted on Wednesday, December 04, 2019 - 6:43 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

eBay has a kit,
'WHATEVER'
CEF-107
DX #023

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