Re: [TenTec] TenTec Digest, Vol 63, Issue 7

["Bob McGraw - K4TAX" <RMcGraw@Blomand.net>]

Nope.  Remember the circuit has a good bit of gain so any change on the 
input is reflected by a magnitude of gain on the output.  My data stated was 
from testing of the Omni VII using an adjustable bench power supply metered 
at the radio connector with a highly accurate DVM for DC voltage measurement 
and a Bird 43P for power measurement and a 50.5 ohm dummy load.
73
Bob, K4TAX


----- Original Message ----- 
From: "jhreed" <jhreed@chilitech.net>
To: <tentec@contesting.com>
Sent: Wednesday, March 05, 2008 11:34 AM
Subject: Re: [TenTec] TenTec Digest, Vol 63, Issue 7


> Did you mean 99.0 watts?
>
>
>  From: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>
>  Subject: Re: [TenTec] Voltage drop
>  To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
>  Message-ID: <006601c87ece$6809bad0$c1b34ace@FAMILY>
>  Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>  reply-type=original
>
>  Ideally there should be none.
>
>  However, in practice, and we'll presume you are referencing the voltage
>  required to operate a 12 volt DC 100 watt transceiver, then 0.1 to 0.2 
> volts
>  would normally be acceptable.  This is about 1%  {13.8 * 1% = 0.138}  If
>  every thing operates in a straight line fashion, then the output of the
>  radio would not be 100 watts but less 10% or 90 watts.  Then we get into 
> the
>  dynamic regulation caused by the changing load due to CW or voice peaks.
>
>  Short power leads, good power supply regulation and #12 wire for runs of 
> 6
>  ft or less work quite well.  Be sure all terminals are soldered and not 
> just
>  crimped.  Makes for lower IR loss.
>
>  73
>  Bob, K4TAX