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Re: Topband: CY9C

To: "GEORGE WALLNER" <aa7jv@atlanticbb.net>, "Rudy Bakalov" <r_bakalov@yahoo.com>
Subject: Re: Topband: CY9C
From: WW3S <ww3s@zoominternet.net>
Reply-to: WW3S <ww3s@zoominternet.net>
Date: Sun, 08 Sep 2024 01:28:43 +0000
List-post: <mailto:topband@contesting.com>
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/C6AGU
73,
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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