Tim
make sure of the rated rf power input for your model preamp.. I thought
some were just made for the 10 watt radios like the ic-451a
also note.. the Icom sends 12 volts down the coax during receive and
removes the power on tx.. the preamps are not rf switched or
anything, so you will have to mimic that also..
I see Down East microwave sells some injectors..
BT Pre amp DC power inserter, >1GHz Type "N" (F) conn 40.00
BTM Pre amp DC power inserter, >1GHz Type "N" conn (M) on Input, (F)
on Output 45.00
BTL Pre amp DC power inserter, < 1GHz. Type "N" (F) conn 40.00
BTLM Pre amp DC power inserter, < 1GHz. Type "N" conn (M) on Input,
(F) on Output 45.00
Ray J
Tim Coad wrote:
> I have a 432MHz ICOM mast mount preamp I used to use with my IC471. Though
> my new IC7000 hears tons better than the IC471 alone, it does not hear as
> well as the 471 + preamp.
>
> The Icom preamp DC is supplied via the coax from the 471, the IC7000 does
> not, (at least I cant find it), have this feature.
> Does some one make DC injectors to put 12V onto the feed line?
> Recommendations?
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>
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