In . net, "Jim Pennell"
wrote:


----- Original Message -----
"Frank Gilliland" Wrotee:

Is this band still allocated for low power experimental use without a
license?

Yep, limited to 1 watt power input to the final, and the total
antenna/ground
system is limited to 50 feet.




Yes, the Transmit is limited to that power and antenna. However, the Rx
is not and I'd use a fairly large antenna or tuned antenna loop with a FET
follower at these frequencies.

For the rest of the Rx, a converter is a good way to go and the FET will
give a low enough output impedance for a regular mixer of some sort.

Jim Pennell
N6BIU


I've played around on this band for a few year now, and I've noticed a few
things. It doesn't seem to matter what receiver you use because the noise on the
band is almost always much higher than the receiver's front-end noise. Increase
the receiver's sensitivity and you increase the noise. Instead, work on the
receiver's selectivity. Or send the audio output from the receiver into your
computer's sound card and use one of those great FFT programs designed for
weak-signal work. Do that and you can see signals well below the noise floor.

As far as antennas are concerned, loops are popular but there are plenty of
other options. Remember that the band is for experimentation, and part of the
fun comes from experimenting with different antennas. But even with all the
noise on the band, you can still work 20+ miles CW with nothing more than a wire
in the tree and any old receiver that will tune the band.






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