[Rover] DC inverter for SWAN 250???

Sun, 2 Jun 2002 20:45:27 -0400

Hi Jacob,
Usually you should figure on 4 times the RF output power.
This is because the DC-RF efficiency is around 50%, and the
power-factor of the DC power supply is often around 0.5.  
This means the AC current into the rig's transformer is about 
twice what you would think, due to the reactive nature of
the power supply.

GL es 73,
Bill W3IY/R

----- Original Message ----- 
From: "Jacob Tennant" <[email protected]>
To: <[email protected]>
Sent: Sunday, June 02, 2002 8:32 PM
Subject: [Rover] DC inverter for SWAN 250???

| This may be a stupid question but, how big of a DC to AC inverter would I
| need to run a Swan 250 in a stationary rover situation?
| 
| Just got a Swan 250, 117XC power supply, and a Swan TV-2B 2 meter
| transverter for $10.00 at the Butler Hamfest and figured 240watts will go
| farther than 10 watts...
| 
| Jacob Tennant  K8JWT
| 
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