[amsat-bb] Antenna switching

John john at amber.org.uk
Sun Apr 15 07:53:17 UTC 2018


Hi Rolf et al,

My solution to this problem (or at least a very similar question) was to fit
a sub-rx tap to my FT-847 - one of the HupRF PAT-V boards to be exact.

They are now being sold by sdr-kits I think, and involve about ten solder
joints being made at the most. The result, for me certainly, wqs that I have
a dedicated "SDR Port" on the back of my rig, presented as an SMA, and a
short bridge lead from the rig to the Funcube Pro+. I don't know which rig
you use, but it might be worth looking down this route?

73, and a firm left handshake,
John (XLX)

-----Original Message-----
From: AMSAT-BB <amsat-bb-bounces at amsat.org> On Behalf Of Rolf Krogstad
Sent: 14 April 2018 22:18
To: <AMSAT-BB at amsat.org> <amsat-bb at amsat.org>
Subject: [amsat-bb] Antenna switching

In the shack I am finally starting to use my Funcube Dongle Pro Plus with
SDR-Console 3 and really am liking the combo, especially for the linear
birds.

The one downside is having to manually unscrew coax connectors to swap the
antennas from receiver to transmitter and vice versa when going from V/U to
U/V and U/V to V/U.

I don't want to use multiple antenna switches because if I or a guest op
doesn't set them properly I could blow the front end of the receiver.

Does anyone have an idiot-proof solution for throwing one switch and having
the two antennas swapped between rcvr and xmtr?

Tnx es 73
Rolf  NR0T
EN34it
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