[VHFcontesting] inverters

dbubke at juno.com dbubke at juno.com
Mon Apr 14 13:25:27 EDT 2008


Steve,

I am transitioning my modest rover setup, just like you, from loops to yagis. When I looked at the cost of upgrading my 14V power wiring to supply 25-35 amps (AWG 2 or larger)at 14 volts with minimal loss (0.2volt) and adding an inverter for a rotor, I decided it was time to take a generator and power supply along instead. This is untried in the field as yet.

I ran some tests on RF output of my rigs, at voltages varying from 11.15 - 14.2 volts, and was surprised at the 25% reduction in RF power output at 13.8 volts and 50% reduction at 12.6 volts.

Also tried a well known dc-dc booster to maintain 14 volts. It worked okay at loads of 15 amps or less. Not what I need.

Just my 2 cents. 

Dan K6NKC

-- k4gun at comcast.net wrote:
OK... who has a "hash free inverter"?

Steve

-------------- Original message -------------- 
From: frank bechdoldt <k3uhf at hotmail.com> 

> 
> Most inverers will create RF hash along with most ac/dc converters for laptops. 
> You would need to ask wo has a hash free inverter on the market. 
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