Graham,
Congratulations. Looks like a nice design. Are you using a TUH-1
mixer? Looks like the one that is used in DEMI transverters. Also
does not look difficult to put on 10.472 MHz using an external 10-MHz
reference osc. This would be ideal running the K3 in TEST mode.
I don't see LP filters on the output. Might be good to have that so
the 2nd Harmonic does not cause BC RFI on 944-KHz.
If you are going into production, probably not much sense for me to
try, too. The market belongs to he who is first. I would add a 25w
PA for running 1w ERP (typically with short vertical antennas). I
get a calculated 4.15w ERP on my inverted-L by running 100w RF output.
At my station I could drive my 100w transmitter with the SGA5586
stage, or possibly directly with the mixer output. I currently run
on 495-510 KHz using the mw output of the K3 running in TEST.
73, Ed - KL7UW
--------------
Date: Mon, 25 Mar 2013 14:52:57 -0700 (PDT)
From: grumss <[email protected]>
To: [email protected]
Subject: Re: [Elecraft] 472KHz transverter for KX3
Message-ID: <[email protected]>
Content-Type: text/plain; charset=us-ascii
Prices are yet to be confirmed,
the kits should be around AUS$80 and
fully built boards AUS$200
It may seem a little expensive but I hand built them, tune and test which
takes a few hours.
(a limited number of fully built ones are available already at this price)
73, Graham VK3XDK
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
