Re: for sale Heath swr meter

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From: John Spoonhower (jps@Kodak.COM)
Date: Thu Dec 08 1994 - 08:16:51 EST


just for everyone else's information....apparently you can modify the
HM-102 to be sensitive at QRP power levels.

John, kc2du
-------------------------------------------------------------

Pete, yup it's the one you've described...
John

> From rossi@VFL.Paramax.COM Tue Dec 6 17:24:03 1994
> >From spoon Tue Dec 6 17:24:03 1994
> Date: Tue, 6 Dec 94 16:36:01 EST
> To: jps@Kodak.COM
> Subject: Re: for sale Heath swr meter
> X-Lines: 25
>
> ->Everyone, well it's not necessarily QRP, but hey, seems like
> ->noone can agree what QRP is anyway..... I have a Heath HM-102
> ->power/swr meter for sale..excellent condition. I will sell
> ->for $45 plus shipping.
> ->72, John, kc2du, spoon@kodak.com
>
> Is this the one.. green case.. almost cube sized about 4-5 inches on
> a side. 200 and 2000 watt scales + SWR?
>
>
> If it is, I modified mine to have 200 and ** 20 ** watt scales. Not sure
> just how accurate it is but at least it gives some kind of decent indication
> at low power levels. Can't be too far off. I forget the exact details of
> what I did but basically it involved reducing the value of a fixed resistor
> that gets switched in when you are in the 2000 watt scale. I can double check.
> I think I just replace it with a pot and set to so that it read 5(00) watts
> when I fed 5 watts watts into the thing. So the 0-2000 watts scale is now
> 0-20 watts or there abouts.
>
> ---
>
> Pete Rossi - WA3NNA
> rossi@vfl.paramax.com
> Unisys Corporation - Government Systems Group
> Valley Forge Engineering Center - Paoli, Pennsylvania
>

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