IR4B is IK4AUY Special Contest Call Contest page UNDER CONSTRUCTION |
My Sunrise - Sunset local time (for low bands grey line propagation)
My amateur radio station is composed by:
set-up a) and set-up b)
set-up a):
HF antennas:
10-15-20 meters one
Hy-Gain TH7 up about 17 meters from ground, top of home roof.
12-17-30 meters one rotative dipole by
Cushcraft D3W below (because we have added it
only lately and it was difficult to add it above the TH7) at 90° (to
minimize
mutual pick-up with the three bands yagi)
40-80 meters one mor-gain dipole, 20 meter long with 3
closed spaced wires and center
fed with coaxial cable, for limited space)
VHF antenna: 144 Mhz 5 el short yagi by Fracarro mounted top of TH7 at 18 meters from ground.
set-up b) - at country qth, flat area:
HF antennas:
10-12-15-17-20-30-40 one vertical antenna by Cushcraft R7, at 2
meters from ground.
40-80-160 one vertical
Butternut HF2V antenna heavily toploaded with 4 equal length
sloping
wires, each about 5 meters long, ground mounted with 5, 20 meters long, radials.
Rx only antenna:
40-80-160 with one direction only Beverage about 177 meters long, at 2 meters
from
ground.
I use our own designed
SRC-02 Front-End unit (with passive RX
passband filters, pre-ampl, variable attenuator and ant 1, ant2, RX antenna only
switching control).
RIGs:
Kenwood
TS570DG <<<click here for LX3SKY review, and audio files in page 2 DSP)
I4FAF home built trx (as back-up rig, second receiver only)
Amplifier:
One, home built by I4FAF,
4CX800A tetrode tube linear amplifier for HF bands, legal
limit power 500 Watts, only if necessary.
PC: Pentium lap top for real time logging with CT9 by K1EA
CW Paddles:
Begali
Simplex,
Bencher.
Wattmeters:
Coaxial Dynamics 83000-A, Drake WH7.
(last update: 21 Jan 2004)