[600MRG] U3S with T/R relay

[Edward R Cole]

Hans,

Impressive kit.  Good that you are agreeable to writing in extra code 
to implement Tx delay functioning.
Probably a good solution for those with no 630m transmit capability.

I have a K3 which operates down to 490-KHz with mw output and after I 
update with the new synth board designed for the K3S, it will operate 
down to 2200m.  I converted a 100w NDB transmitter by removing the 
xtal osc. and capacitively coupling 0.1mw able to get full 
output.  So I run digital modes via computer interface.

The K3 is used for eme on 6m/2m/23cm with JT65.

73, Ed

At 11:04 AM 11/2/2016, Hans Summers wrote:
>Hi all
>
>I am the designer of the Ultimate3S kit http://qrp-labs.com/ultimate3/u3s
>and all the QRP Labs kits, and I'm a member here for a while now. Though a
>quiet member ;-)
>
>Ed - KL7UW - the Ultimate3S is a standalone transmitter kit. You configure
>it with your transmission schedule (frequency, times etc), callsign, and
>locator (or connect a GPS to get that for you, and also discipline
>time/frequency). All it needs is a power supply and an antenna system. It
>is not controlled by WSPR software running on a PC. The RF output is
>typically around a 1/4 watt but varies depending on band; more transistors
>can be fitted to allow higher PA voltage and several watts are then
>possible.
>
>Steve KK7UV did ask this question on the QRP Labs YahooGroups forum and I
>offered a couple of suggestions - but I think it will be a little tricky to
>set up, as it is now.
>
>I think John WA3ETD is right... "Hans needs to add code to the WSPR mode to
>assert a PTT signal at the 2 min." - I will try to find codespace to
>squeeze it into the next firmware release, coming soon!
>
>73 Hans G0UPL
>http://qrp-labs.com
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>
>
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73, Ed - KL7UW
http://www.kl7uw.com
     "Kits made by KL7UW"
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