[TenTec] 6N2 observations

Duane - N9DG n9dg at yahoo.com
Sun Jul 9 23:11:17 EDT 2006


Not sure where the notion that a 2 dB NF is sufficient for 2M
SSB/CW work comes from. I suspect though that it is a figure
that has persisted for years in ARRL Handbooks. I would argue
that a NF in the .6-.8 dB range is a more realistic minimum
to shoot for. I run a transverter that is factory spec'd at
.8 dB at the end of a coax run with a measured loss of .8 dB
and still find occasions where I could use a lower NF. If you
are running an antenna with a clean pattern, low loss
feedline, and have quiet radio horizons at VHF a 2 dB NF in
the RX is simply not low enough for 2M. 

Duane
N9DG


--- "Dr. Gerald N. Johnson" <geraldj at storm.weather.net>
wrote:

> All this adds complexity
> that wouldn't be there if the radio had a 2 dB NF instead
> of 12 dB.
> 
> 
> -- 
> 73, Jerry, K0CQ,
> All content copyright Dr. Gerald N. Johnson, electrical
> engineer


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 


More information about the TenTec mailing list