Here's a direct link to the 600 watt True Sine Wave Inverter we are using
in our rover.
73's
Dave
W3DIO (K3LFO/R team)
> Hey fellow Rovers,
>
>
> Good power systems and power management are the key to successful
> roving. Unfortunately, I've been fighting the Inverter noise problem for a
> couple of years now. We've needed an Inverter to run our computer as well
> as the ac powered rotators. I've tried several cheap, modified sign wave
> units. They all emit unstable spurs and hash all over 6m and often on 2m
> and up as well. Every time you turn the beam the hash level increases and
> the spurs get broader. We have tried everything short of building a
> sealed and filtered box for it to go in like W3IY (sk) did. Bill had said
> that he still had a little hash due to the less than pure sign wave
> output.
>
> I've seen many very high priced inverters that probably would work well
> but at $ 1000.00 - $ 2500.00 the cost was prohibitive.
>
> Finally I ran across an ad from Power Stream advertising the
> PST-S600W-12, a Low Cost, Low RFI inverter. Checking further they
> claimed to have a pure sign wave output as well as well shielded and
> filtered switching circuit. I decided to order one but the web site said
> they were not available "at this time". After checking back for a couple
> of months I called them up and they took my order over the phone. It cost
> around $ 216.00 plus shipping.
>
> After installing it in the new rover we spent several hours testing
> under different loads and on different bands and there isn't a sign of RFI
> anywhere! The hash from the rotator running wasn't present either.
>
>
> Even though we now run a generator this allows us to run on DC power
> while under way as well as when in a generator restricted camp site.
>
> http://www.powerstream.com/Wire_Size.htm
>
>
> I hope this helps some of you out.
>
>
> 73,
>
>
> Jim K3LFO/Rover
>
>
> _______________________________________________
> VHFcontesting mailing list
> VHFcontesting@contesting.com
> http://lists.contesting.com/mailman/listinfo/vhfcontesting
>
>
_______________________________________________
VHFcontesting mailing list
VHFcontesting@contesting.com
http://lists.contesting.com/mailman/listinfo/vhfcontesting
|