[VHFcontesting] inverters

[Joe Serocki]

I BUILT THAT! That is just too funny. It was in an old Popular Science
decades ago. Loud as heck, especially since I used an old engine from a weed
whacker.

You need a regulator and some other stuff to make it work.

Overall, I will stick with my $100 750 watt generator and the nice 110VAC
power supply from DC Ace. It works for me, period. Inverters are nice, but
to get it to work you really need to separate it from the radios, mine is in
the front of the van and a power cable goes to the back. I needed the
separation to keep the hash out of the radios! When I got the generator it
was just, well, heaven.

I also built a cool generator trailer, if anyone want a pic of it, with the
two antenna masts on it, let me know and I will put it on the web someplace.

Joe Serocki, N9IFG
www.welcars.org
www.stonedmonkey.org
www.tke-nu-iota-alumni.org/
www.venturecrew743.org
www.foxlaketroop85.org
IRLP Node 4239
 
If you don't like it SPIN THE DIAL!
Quando omni flunkus moritati!
America is returning to the values Scouting never left.


-----Original Message-----
From: Zack Widup [mailto:w9sz at prairienet.org] 
Sent: Monday, April 14, 2008 2:42 PM
To: Joe Serocki
Cc: vhfcontesting at contesting.com
Subject: Re: [VHFcontesting] inverters


There was an article in one of the ham magazines within the last decade on 
how to build a 12 VDC generator using an automobile alternator and a small 
engine (such as a lawn mower engine).

It looked like something that can easily be built from "junk" parts and 
would power a small station pretty easily. Probably very clean DC output 
but maybe noisy sound-wise. I haven't built it yet but might give it a 
try. It would definitely handle my QRP-portable operations.

73, Zack W9SZ

On Mon, 14 Apr 2008, Joe Serocki wrote:

> Inverters are hash generators. I hate them for that reason. I have also
> decided that a generator would work out best, and I got this way cool 1K
> generator, perfect for a rover, from Menard's on sale for $78! I had a big
> generator, but that's best left at home. Face it a 1K generator is enough
to
> run a small shack, with a couple radios, with ease.
>
> Joe Serocki, N9IFG
> www.welcars.org
> www.stonedmonkey.org
> www.tke-nu-iota-alumni.org/
> www.venturecrew743.org
> www.foxlaketroop85.org
> IRLP Node 4239
>  
> If you don't like it SPIN THE DIAL!
> Quando omni flunkus moritati!
> America is returning to the values Scouting never left.
>
> -----Original Message-----
> From: vhfcontesting-bounces at contesting.com
> [mailto:vhfcontesting-bounces at contesting.com] On Behalf Of dbubke at juno.com
> Sent: Monday, April 14, 2008 12:25 PM
> To: k4gun at comcast.net
> Cc: k3uhf at hotmail.com; vhfcontesting at contesting.com
> Subject: Re: [VHFcontesting] inverters
>
> 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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