[Elecraft] Yet another product idea

Joe Subich, W4TV lists at subich.com
Sun Apr 10 18:23:36 EDT 2011


 > IMD could be better <http://www.qsl.net/f1jrd/800wR.JPG> at least on
 > 144MHz.

-35 dB doesn't look too bad compared to a lot of the stuff out there
today - even if it is a PEP (ARRL) measurement.  If it is referenced
to one of the two tones, it's significantly better than most of the 
currently available transceivers.

 > FWIW, Freescale claims that these devices are candidates for
 > broadcast applications.

It would still be nice to see some manufacturer's specifications
and test data in linear service.  Given the raw gain and the
unmatched design, it should be possible to do an 800 - 900 watt
broadband block without overly stressing them ... two amps would
be an interesting at 1500 W PEP output assuming the IMD did not
increase too much at reduced power output (another reason for
manufacturer's specs/test data).

At $275 each (Q=1) a pair is competitive with an 8877.

73,

    ... Joe, W4TV


On 4/10/2011 5:27 PM, Toby Deinhardt wrote:
>  > Nice for pulsed or CW devices. How about specs for AB1 service
>  > including standing current and IMD? Standing current (bias) is
>
> IMD could be better <http://www.qsl.net/f1jrd/800wR.JPG> at least on
> 144MHz.
>
> Graph taken from <http://www.qsl.net/f1jrd/MRFE6VP61K25H.html>.
>
> FWIW, Freescale claims that these devices are candidates for broadcast
> applications.
> <http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MRFE6VP61K25H>
>
>
> vy 73 de tooby, DD5FZ
>
>


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