Re: Simple UBITX Test Set

Ashhar Farhan

We do sell a test set, it is called Antunio!
Except for the dummy load, the Antuino is really all you need to align any HF radio set. It can be used to test any radio well into UHF range as well as individual filters, including duplexers, amplifiers, mixers, etc. It can also measure input or output impedance match, antenna vswr and even act as a vtvm.
End of the plug.
- f

On Mon 26 Oct, 2020, 4:02 AM Jerry Gaffke via, <> wrote:
Page 6 has the test set Allen mentioned:

A 7.050mhz crystal oscillator with an attenuator suitable for checking out a 40m receiver.
And a 50 ohm dummy load for the transmitter.

That would definitely be better than nothing at all for debugging a uBitx,
but hardly sufficient.

Could tell if the receiver works on 40m.
And could drive the uBitx power amp to check it out on 40m as well
if you do away with the cute trick of using one connector for
both signal generator and dummy load.

Jerry, KE7ER

On Sun, Oct 25, 2020 at 02:25 PM, Allen Hill wrote:
Check out the TX/RX test circuit in January 2015 issue of QRP Quarterly on page 6 (shared by K1MBO).
Very simple and low cost.
This particular issue is the free download from their website. 



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