Using RX ANT OUT for a second receiver

[Pete Smith N4ZR]

Any reason not to use a magic-tee splitter between the RX ANT OUT and RX
ANT IN ports on a K3 (no antenna tuner) to feed the received signals
simultaneously to a second receiver? I want to be able to use my main
antennas with my QS1R for Reverse Beacon functions. I realize that will
cost 3+ db on each port, but that doesn't look like a show-stopper.

--
73, Pete N4ZR
The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000 and
arcluster.reversebeacon.net, port 7000

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[Don Wilhelm-4]

Pete,

If the 3 dB does not bother you, then I would say "do it".

73,
Don W3FPR

On 5/6/2012 8:24 AM, Pete Smith N4ZR wrote:
> Any reason not to use a magic-tee splitter between the RX ANT OUT and RX
> ANT IN ports on a K3 (no antenna tuner) to feed the received signals
> simultaneously to a second receiver? I want to be able to use my main
> antennas with my QS1R for Reverse Beacon functions. I realize that will
> cost 3+ db on each port, but that doesn't look like a show-stopper.
>
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[gm3sek]

Pete Smith N4ZR wrote:
>Any reason not to use a magic-tee splitter between the RX ANT OUT and RX
>ANT IN ports on a K3 (no antenna tuner) to feed the received signals
>simultaneously to a second receiver? I want to be able to use my main
>antennas with my QS1R for Reverse Beacon functions. I realize that will
>cost 3+ db on each port, but that doesn't look like a show-stopper.
>

G4AON has been doing this for a long time, to feed his Perseus:

See <http://www.astromag.co.uk/k3>, half-way down the page.


--

73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek
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[w8fn]

I do this to feed my ancient R-4C as an auxiliary receiver. I built up a
special RX antenna relay switching matrix to manage feeds to the Main
and Sub receivers with a Mini-Circuits PSC-2-2 embedded in it for this
purpose. The splitter can be switched in or out to share the Aux R-4C
with the K3 Main input. It works great.

73...
Randy, W8FN

On 05/06/2012 07:24, Pete Smith N4ZR wrote:
> Any reason not to use a magic-tee splitter between the RX ANT OUT and RX
> ANT IN ports on a K3 (no antenna tuner) to feed the received signals
> simultaneously to a second receiver? I want to be able to use my main
> antennas with my QS1R for Reverse Beacon functions. I realize that will
> cost 3+ db on each port, but that doesn't look like a show-stopper.
>
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[Joe Subich, W4TV-4]

Pete,

I've been doing that to feed my SDR-IQ and it does not seem to be
a sensitivity problem.

*NOTE* the RX Out/In loop is *after* the transmit lowpass filters
and as such they will impact the ability of your QSR-1 to receive
on bands above the one in use on the main receiver.

73,

    ... Joe, W4TV


On 5/6/2012 8:24 AM, Pete Smith N4ZR wrote:
> Any reason not to use a magic-tee splitter between the RX ANT OUT and RX
> ANT IN ports on a K3 (no antenna tuner) to feed the received signals
> simultaneously to a second receiver? I want to be able to use my main
> antennas with my QS1R for Reverse Beacon functions. I realize that will
> cost 3+ db on each port, but that doesn't look like a show-stopper.
>
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