[UK-CONTEST] Salmon Run....

[Dr K Kerr]

>
>
> >
> >Regarding MFJ DVK, one of the RF issues concerns how you power the
>unit.
> >The PP3 inside will not last a fraction of a major contest. Using all
>
> >manner of external mains 12V supplies has proved hopeless....RF, mains
>hum
> >etc. However, external beefy 12v battery (I actually use two 6V
>lantern
>
>Well I don't know about the mfj unit but my homebrew one is based on
>the ISD 2590 which is rated at 25ma operating , and only 1mua on
>standby.  I've used 4 AA batteries to power it and although its not had
>an awful lot of use yet it has had some, probably at least a  contests
>worth, and I haven't changed them since I built it last year.
>
>Andy

Maybe but in the MFJ unit there is a relay which operates the PTT on the 
rig and it drains a bit.
Keith




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------------
Dr Keith M Kerr,
Consultant and Clinical Senior Lecturer,
Department of Pathology,
Aberdeen University Medical School
and Aberdeen Royal Infirmary,
Foresterhill,
Aberdeen,
Scotland, UK,
AB25  2ZD
Tel 01224 552414   Fax  01224 663002
k.kerr at abdn.ac.uk