Jamie,
The PTT is simple. Either transmitter's PTT can turn on the PA. RX is via a
separate antenna port, so there is no RX/TX switching in the PA.
George
On Sun, 08 Sep 2024 01:28:43 +0000 WW3S wrote:
I'm still trying to wrap my head around the PTT for the amp.....and imagine the
duty cycle, that amp must be cooking !!!
73 (thanks for the N5J new one)
Jamie WW3S
------ Original Message ------
From "GEORGE WALLNER" <aa7jv@atlanticbb.net>
To "Rudy Bakalov" <r_bakalov@yahoo.com>
Cc "Rudy Bakalov via Topband" <topband@contesting.com>
Date 9/7/2024 9:14:33 PM
Subject Re: Topband: CY9C
As Jim points out: This is non-trivial.I have not published the details as so
far nobody has asked for them.
Indeed, it has to be a serious DXpedition to justify the effort needed.
George,AA7JV
On Sat, 7 Sep 2024 17:07:01 -0400 Rudy Bakalov wrote:
Is this only for 160? Are the schematics published?
Rudy N2WQ
Sent using a tiny keyboard. Please excuse brevity, typos, or inappropriate
autocorrect.
On Sep 7, 2024, at 4:59 PM, GEORGE WALLNER <aa7jv@atlanticbb.net> wrote:
Rudy,Info at https://www.qrz.com/db/C6AGU73,George
On Sat, 7 Sep 2024 14:17:45 -0400 Rudy Bakalov via Topband wrote:
How does this work? IF this is indeed the case, this would be agreat solution
for multi-op contest stations.
Rudy N2WQ
Sent using a tiny keyboard. Please excuse brevity, typos, or inappropriate
autocorrect.
On Sep 7, 2024, at 2:01 PM, Jim Brown <jim@audiosystemsgroup.com> wrote: George
developed a sophisticated combining network that allowed the two best weak signal modes, CW
andFT8, to operate simultaneously into the same TX antenna, and to use the same weak signal
RX antennas, allowing them tobe active all night every night! The magnitude of this
achievement technically is to realize that the two modes areworking within 20 kHz of each
other, and listening within 10 kHz, and the CW station is running high power!
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