a320ca
27 posts
Sep 13, 2009
7:20 AM
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Ok, got Sparky's custom Cobra 25 installed along with a Wilson 5000 roof mount. Everything is great, except engine whine that follows the rpms. Good news is when I disconnect the antenna there is no change (the noise continues). So, I need a good filter for the power line. Would you recommend the 20amp inline power cord filter that Sparky has on his site???
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binrat
178 posts
Sep 13, 2009
8:07 AM
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you know, I have that problem as well and have been just too lazy to correct it.
binrat
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Secret Squirrel
297 posts
Sep 13, 2009
2:13 PM
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a320ca,
You need to give Al a call on this one. RF Limited makes a highly regarded power cord with 25 amp filter inline. Two ferrite cores on your existing power cord may fix the problem. Al will know the best fix for the big gun Cobra.
Secret Squirrel
Last Edited on 15-Sep-2009 6:35 PM
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a320ca
28 posts
Sep 15, 2009
4:49 AM
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Gonna try some Ferrite cores first on the power lines, then if needed I'll try the RF Limited power cord with inline filter. Since disconnecting the antenna makes no difference I'm guessing it's ok (may put some Ferrite cores on the coax anyway)...
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grandpaclint
6 posts
Sep 15, 2009
7:01 AM
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you know in the olden days of cb (60's70's) we diddnt
have all the noise limiters , so we ran some coax
directly from the battery to the cb power cord.
the shield was negative, the center was pos.
no more engine noise,,,,period
just my 2 cents
sears roadtalker 40 10m conversion
trs 449
ufo digiscan
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tagalong 108
347 posts
Sep 15, 2009
9:22 AM
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rat shack pt # 273-0067 will do the trick they are cheap and i used 2 on each side , + and -
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tagalong 108
WWPDX 108
To slow to run with the big dogs
cobra 29 ltd classic
galaxy 959 by sparky
Pred-10K Comp
in the pickup !
base
Galaxy melaka, skipper 300 driver,
maco v5000
7ele Maco 80' in the air
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