Hi All
I want to make sure my tx antenna doesn't upset my RX antenna they are about
20m apart,
I plan to disconnect the feed line to the TX antenna when in RX but do I leave
it floating or ground it,
I will be using a shut capacitor to match the antenna so it will be grounded
will this cause
Hello Trevor,
Read this link - it might be helpful to detune your TX antenna.
" Impact of Resonant TX antennas on the Radiation Pattern of RX Directional
Antennas. Detuning of TX Antennas."
http://www.lz1aq.signacor.com/docs/resonance-impact/resonance-impact.pdf 73
Chavdar LZ1AQ
Trevor,
as well as the link from Chavdar, you might look at this You Tube video I
made on detuning the TX antenna for reducing RX noise:
https://www.youtube.com/watch?v=38G-awzhQH0&t=13s
73, PeteR N8PR
To: topband@contesting.com
Subject: Topband: RX/TX Antenna decoupling
H
The answer to a lot of these either/or station wiring quandaries on
RX/TX/RX transitions is a slow-relay assert-TX signal. This is a signal
that would properly drive the frame relay RX/TX/RX in an un-QSK'd AL1200.
This is available in any WinKey or WinKey based device like MicroHam. In
contest setu
: Pete Rimmel N8PR
To: topband@contesting.com
Sent: Thu, 05 Oct 2017 19:00:05 +0100 (IST)
Subject: Topband: RX/TX Antenna decoupling
Trevor,
as well as the link from Chavdar, you might look at this You Tube video I
made on detuning the TX antenna for reducing RX noise:
https://www.youtube.com
Thanks Iain
That's what I am planning too hope it works out for both of us,
See you in the pile ups,
73
Trevor
EI2GLB
- Original Message -
From: iain haywood
To: ei2...@eircom.net
Sent: Mon, 02 Oct 2017 17:31:18 +0100 (IST)
Subject: Topband: RX/TX Antenna decoupling, (OFF LIST
I discovered my rx antennas worked much better if my tx antenna was
completely disconnected from the station. Most coaxial relays or T/R
switches only break the center conductor. That's not good enough.
There has to be a complete disconnection which I provided by using an
open frame relay mounte
> Thanks for sharing this info.
> Would you please provide more information on the relay model number and how
> it is wired into your system.
I used a P&B open frame relay 4PDT but a single throw will work.
What's important is that the relay use metal other than steel (or
other magnetic metal) for
Sorry to let you know that a brilliant light that was Price was dimmed on the
21st. Price is a silent key now. He will be missed.XYL Inge
From: Rob Atkinson
To: topband@contesting.com
Sent: Friday, October 6, 2017 5:15 AM
Subject: Re: Topband: RX/TX Antenna decoupling, (OFF LIST
