[TenTec] Voltage drop

[Bob McGraw - K4TAX]

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




----- Original Message ----- 
From: "Bill Harris" <w7kxb at msn.com>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Wednesday, March 05, 2008 1:58 AM
Subject: [TenTec] Voltage drop


>
> Is there a rule of thumb for maximum voltage drop through the primary DC 
> power lead.
>
> 73
> BillHarris w7kxb
>
>
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