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Re: [CQ-Contest] SO2R Hardware Question

To: Carsten Steinhoefel <carsten@steinhoefel.co.uk>
Subject: Re: [CQ-Contest] SO2R Hardware Question
From: John Geiger <af5cc2@gmail.com>
Date: Sat, 16 Dec 2017 14:48:54 -0600
List-post: <mailto:cq-contest@contesting.com>
One of the radios (Kenwood TS2000) has an RX ant jack.  The other radio
(Yaesu FT891) just has a SO239 for the antenna, no RX in or out jacks.  I
have found a couple of different devices that will allow dual receive using
these 2 radios.

73 John AF5CC

On Sat, Dec 16, 2017 at 12:33 PM, Carsten Steinhoefel <
carsten@steinhoefel.co.uk> wrote:

> Do the radios have RX antenna inputs/outputs?
>
> If you use radio 1 for transmit, connect the RX out to a 3dB splitter
> (e.g. Mini-Circuits) and one output back to RX ant in on radio 1 and the
> other to RX ant in on radio 2. Put the TX antenna port on radio 2 to a
> dummy load just in case. That way you have your TX ant for receive on both
> radios, albeit with 3dB loss but not a problem on HF.
>
> You only need to have some sort of audio switching now.
>
> Does that help?
>
> 73 Carsten G0SYP
>
>
> -----Original Message-----
> From: CQ-Contest [mailto:cq-contest-bounces@contesting.com] On Behalf Of
> Ria Jairam
> Sent: 15 December 2017 14:44
> To: John Geiger <af5cc2@gmail.com>
> Cc: CQ-Contest Reflector <cq-contest@contesting.com>
> Subject: Re: [CQ-Contest] SO2R Hardware Question
>
> Assuming you don't want to listen and transmit on the same band with the
> same antenna at the same time -
>
> You would need some sort of interlock device and a splitter.
>
> A much better approach is to use a SDR with two virtual receivers.
> Flex-6000, Anan, Elad, or even a Softrock would fit the bill.
>
> 73
> Ria, N2RJ
>
> On Wed, Dec 13, 2017 at 11:19 PM, John Geiger <af5cc2@gmail.com> wrote:
> > I have 2 radios that I would like to be able to use in dual receive
> > mode, meaning I can listen to both at the same time.  They would be
> > using 1 antenna, and only one radio would be used for transmitting.  I
> > would like to be able to use both on the same band for split frequency
> DX pileups.
> >
> > What sort of SO2R interface do I need to accomplish this?
> >
> > 73 John AF5CC
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