[Kenwood] TS-830S Power Reqt Question

[Durwydd MacTara]

>From: "John O. Newell" <jnewell@attbi.com>
>To: kenwood@mailman.qth.net
>Subject: [Kenwood] TS-830S Power Reqt Question
>Date: Fri, 23 Aug 2002 21:08:42 -0400
>
>Hello All --
>
>......  I have a
>question about the TS-830S.  According to the specs, it
>needs 295w on transmit...I assume that's for 100w out.  At
>120v nominal, that's abt 2.5 amps (295/120).  Am I missing
>something?  That doesn't sound right.  (I note that rx w/
>heater off it draws only 32w?)
>
>Where am I going with this?  I could run one of these off a
>300w inverter in a vehicle...doesn't sound right.  (FWIW,
>the inverter in question is supposedly good for 500w
>surges.)
>
>Any thoughts appreciated!
>
>73
>John Newell KB1FPM
>
The TS-830 S can indeed be run off an inverter, provided that you install a 
good "hash" filter, though 300W my be a little "light" for the job, due to 
losses in the filtering setup. I use a 400 Watt inverter feeding a 120 Volt 
isolaton transformer; this converts the square wave output of the inverter 
to a 60 Hz. sinewave. I still found  it necessary to use a couple of ferrite 
beads and .001 bypass caps to the output feeding the transceiver. If you use 
anything less than #6 stranded wire for your battery to inverter 
connection,you may also have to use a similar filter at the input to the 
inverter to keep it from "broadcasting" the hash to your receiver using the 
battery cable as an antenna.

  Words are cheap; I AM what I DO!
Durwydd MacTara, Pistol packin` pagan


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