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Subject:
From:
Patrick Byrne <[log in to unmask]>
Reply To:
Blind-Hams For blind ham radio operators <[log in to unmask]>
Date:
Mon, 23 Dec 2002 19:38:32 -0600
Content-Type:
text/plain
Parts/Attachments:
text/plain (52 lines)
Hi Tom,

I will agree with what others have said; either rig can feed separate
antennaes, but be pretty careful that both rigs don't get on the same
antenna.  I have a TS850 and a TS2000 both fed from an Astron 35 amp
supply.  Never a problem overloading the supply.  I have a coax switch
connected with the antanna (multiple side) to the outputs of the
transceivers and the common, (transceiver) side of the switch feeding
another coax switch, which selects my G5RV, TA53 or dummy load.  This seems
pretty obvious to me, but if I have misled you, please get back to me.  I
didn't mean that as a slam; often what is obvious to the "inventor", is not
well explained to the questioner.

To answer your original question, yes you can but use care.

Pat Byrne, K9JAUAt 07:53 PM 12/23/02 -0500, you wrote:
>Hi, all.
>
>This may be a stupid question, so when you read it, just be nice, and try to
>answer it as best as you can.  Remember:  It is the Christmas season!  HI!
>HI!  HI!
>
>Anyway, here's the deal:
>
>My son, who is also a ham, is helping me re-design my basement ham shack
>here at the house.  I want to have the capability of running two HF rigs
>simultaneously for either contesting, or emergency net work.  My main rig is
>an Icom 746.  It draws about 18 amps on full power, and is most likely the
>rig I would be transmitting with.  The other rig is an Icom 718, which draws
>about 3 amps on receive, and is the rig I would listen to other frequencies
>with.  I would like to run both rigs off the same power supply, which is an
>Astron RS35 supply, and the same antenna system if possible.  My antenna
>system consists of four HF antennas (used for different bands, of course),
>and a six-position antenna switch that I use to switch antennas as needed.
>
>Can I do this safely?  Can I transmit with the 746, and not cause damage to
>the 718 with this set-up?  Can I have the rigs located next to each other,
>or should I separate them by a considerable distance?  If so, how much?
>
>By the way, I should add that both rigs will be connected to a common RF
>ground.
>
>Any suggestions here would be appreciated.  I hope this isn't too stupid of
>a question, but I have never had two HF rigs to work with before, and I want
>to be safe, rather than sorry.
>
>Thanks much, and merry Christmas.
>
>Best 73 from Tom Behler:  KB8TYJ
>
>

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