Jim,
the transverter is in the prototype / breadboard stage.
It is original in the way that it is my own design, but it is just a
classic transverter:
- Kenwood TS440 on 4.5MHz (in fact 4.5024MHz USB for WSPR) at minimum
power (abt. 1 Watt)
- 30dB attenuator (1W to 1mW)
- DBM (SBL-1) fed with a 4MHz xtal osc as downmixer to 500kHz (502.4kHz)
- single transistor (BC550c) post amp, about 10mW out at 50 Ohm
- 5 pole LPF
- PA 10mW to 50W
- 7 pole LPF
- antenna
I will be transmitting WSPR tonight (11-11) if WX stays dry.
73, Rik ON7YD - OR7T
Quoting "[email protected] NOT" <[email protected]>:
transverter design original? could I see details?
11 November would be a possibility for me to monitor for you.
73,
Jim
---- Rik Strobbe <[email protected]> wrote:
Hello Jim,
> Not tonight, Rik--I am committed to compared 160 WSPR with VE2DC in
> Quebec (who will also be
> Participating in the 500 kHz experiments and has already copied an
> M0 there); anyhow, I
> Have to leave before 2200 for a meeting this evening. Tx is on 160
> WSPR and I'll turn spotting back
> on as I leave the house. (Still dial-up around here, so it's either
> internet or telephone!)
>
> Would be happy to do it some other evening, though!
No problem, we will try another night.
> How do you generate a WSPR signal on 500 kHz?
Kenwood TS440 on 4.5MHz into a homebrew transverter 4.5MHz -->
500kHz + 50W PA
73, Rik ON7YD
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