[Lowfer] (no subject)

[BOB RIESE]

FWD from the RSGB reflector


Hi to all,

i have received by Crystalonics the CP666 High Performance FET  for the
AMRAD E Field Antenna, so in this weekend i have realized it.
The first impression is that i can't believe that with a 1 meters long
whip was possible listen from the DC to up 30 MHZ, an outstanding
design!!!!!!
Compared here with my big magnetic loop in 160/80/40 ( 4 meters dia.) is
about the same, a little better is the magloop for high angle, on higher
band is really better than my little magloop on the DX.
In LF i can hear signal from 12 Khz, where i listen Omega and Alpha also
signal i think, in 136 this morning i have recorded I5TGC with DF6NM in
dfcw, with Amrad antenna DF6NM was T/O, with my ferrite antenna with fet
pre nothing!!
The 2 antenna are at about 8 meters high on my roof at a distance one
from the other about 10 meters, so for my first impression is  the
antenna work very well, and the Crystalonics fet is really very good, no
presence of intermodulation at the output of the pre with my EKD300
receiver, while with my IC738, there is some IMD on 160, the limiting
factor is the receiver!!!!
So, i agree at 100% with all the impression wrote by Derek Atter, G3GRO
about this antenna.
Again, the ferrite antenna is much vulnerable with magnetic man made
signal, local signal very high on the ferrite disappear on the vertical
whip, incredible.
I have ordered 15 pieces of this FET, 10 are for I2PHD Alberto, may be
that him want to made a 136 khz four square array??? hi hi hi.
73 to all the IK2DED Giulio Scaroni.

Ahh, without a good ground connection near the whip the antenna is so
noisy that a piece of random wire in the shack is better!!
=============
and the ground is the thing. doesnt take much but should be separated
for best results. I measured a 6 Db increase in noise using the station 
ground compared to an 18 inch copper pipe in the ground

Bob  K3DJC