[CQ-Contest] SO2R Hardware Question

[Carsten Steinhoefel]

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 at contesting.com] On Behalf Of Ria Jairam
Sent: 15 December 2017 14:44
To: John Geiger <af5cc2 at gmail.com>
Cc: CQ-Contest Reflector <cq-contest at 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 at 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
> _______________________________________________
> CQ-Contest mailing list
> CQ-Contest at contesting.com
> http://lists.contesting.com/mailman/listinfo/cq-contest
_______________________________________________
CQ-Contest mailing list
CQ-Contest at contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest