Re: VHF radio mic problems

Duncan Wood <bodgedntp@[EMAIL PROTECTED]
> wrote in article
<op.t8rteupepmo3dt@[EMAIL PROTECTED]
>:
>On Sat, 29 Mar 2008 04:09:42 -0000, Tim Perry  
><timperry@[EMAIL PROTECTED]
> wrote:
>> I do not agree that extending the antennas will necessarily be the
"magic
>> bullet" you are looking for. Cable losses at these frequencies are
pretty
>> hefty.
>> example: RG -58  (depending on brand) about 5.5 dB per 100 feet.
>> http://www.ocarc.ca/coax.htm
>> a 6 dB low noise preamp would be needed to make up the loss for a coax 

>> this
>> long.
>
>Or use Rg213 ot CT125. Plus it tends to attenuate the noise as well as
the  
>signal & 20' of cable in this situation shold help a lot.

Moving the aerials out of the control room just to the other side of the
wall seems likely to a give an improvement in signal strength which will
out-weigh the signal loss in the cable over this distance.

Thanks to r.a.t.s. I think I've now got a good handle on the problem,
which is great...

-- 
John Legon