[Lowfer] Some surprise discoveries.....at XSV

[Lee]

Very cool indeed. Thanks for that Neil!


-----Original Message-----
>From: Neil Klagge <w0yse.7 at gmail.com>
>Sent: Apr 26, 2014 6:38 PM
>To: 600mrg at w7ekb.com
>Cc: lowfer group <lowfer at mailman.qth.net>
>Subject: [Lowfer] Some surprise discoveries.....at XSV
>
>I discovered a few surprising things this weekend :
>
>1. I discovered that I can now use my TenTec QRP transceiver to monitor my
>630 meter signal by setting a 10 MHz TCXO next to it and tuning the xcvr to
>10.474200 MHz. Apparently the signal is being mixed in the front end of the
>xcvr.
>
>2. Then, when I removed the battery from the TCXO circuit, I discovered
>that the carrier of WWV on 10 MHz was still doing the job for me. Totally
>unexpected to say the least!
>
>3. Next, I decided to try transmitting a PSK31 signal from my main 630m
>transverter thru my *Class D* (i.e. non-linear) amplifier. I was able to
>decode my PSK signal on the TenTec (with the TCXO right next to it). To my
>surprise it even appeared to look pretty clean.
>
>4. Then I enlisted the help of Mark, ku7z, who lives about 11 miles from
>me, to check my PSK signal for spurs or distortion. He reported a clean
>signal with no spurs.
>
>I did notice that my RF ammeter at the output of the Class D amplifier was
>showing that the average was current below the peak current, so I suppose
>it was running as a linear amplifier at that time.
>
>Who’da guessed !!
>
>There is fun and excitement with every experiment on MF/LF.
>
>73, Neil Klagge, wg2xsv
>
>
>*"I use the original form of social networking: Amateur Radio." *
> *(my ham radio sites are at 'w0yse.webs.com <http://w0yse.webs.com>'  and
>'wg2xsv.webs.com <http://wg2xsv.webs.com>' )*
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