[Elecraft] OT: Dayton New Equipment Show

[Geoffrey Mackenzie-Kennedy]

It will be interesting to hear if the Flex 6000/6700 when used in Europe can 
deal with the European 40m BC stations.

Some data.

Over a period of several months when I was in Scotland, I measured the level 
of these 40m BC signals with which a receiver must cope.  Using a 40m dipole 
at 70ft AGL firing N-S, not a beam, the level of the -carrier- of most of 
the European 40m BC stations at the shack end of the feeder would reach + 5 
to +10 dbm under "normal" conditions of propagation.

And there were many BC signals of similar strength "on air" at the same 
time.

In this part of Europe the 40m BC signals are not as strong, probably due to 
being closer to the BC transmitters, which could benefit Flex's sales in 
Europe.

73,
Geoff
LX2AO

On May 20, 2012 at  2:46 AM, Joe Subich, W4TV wrote:

<snip>

> However, when one has five or six -33 dBm "local signals" (easy
> on 160 or 80 meters during a major contest ... or 40 meters in
> Europe with the superpower broadcasters just outside the band)
> the required signal handling is many orders of magnitude higher
> than just two -23 dBm (S9+60 dB) signals.  Instantaneous peak
> voltages do not add linearly ... they add exponentially.