Re: receive works great, but no trans power, #ubitx-help

Jerry Gaffke
 

Yes, an RF probe is a good idea to have around when debugging a uBitx.

That looks like a reasonable circuit, but good luck finding a GEX66.
Seems to be a germanium point contact diode from 50 years ago, meant for UHF,
5v max reverse voltage.
I'd just use a Schottky diode such as the 1n5711 or a BAT54*.
And maybe adjust those cap values, 100pf at the input seems low for under 100mhz. 

See this post, and the thread around it.
    https://groups.io/g/BITX20/message/52563

Jerry



On Sun, Jul 15, 2018 at 09:47 PM, Clark Martin wrote:
Build yourself an RF Probe such as at: http://www.qsl.net/g3pto/probe.html.  You can use it to trace the signal (or lack thereof) through the transmit path.
 

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