swiss shortwave radio station
HB9AWJ
qth : Zurich locator
: JN47GH operator : Giorgio licensed since
1973
ITU Zone : 28 CQ zone : 14
qth locator Italy (temporarily) : JN53HH
Special interests: low loss transmission by choosing the optimal antenna coupler and the optimal feed line. End fed wire antennas.
Planning and pre-calculations for optimized antenna systems regarding hf-energy losses.
To see examples click buttoms on the right: <balanced antenna tuner> <end fed half-wave antenna> <air core balun>
technical data / working conditions (Zurich) :
transmitting / antenna systems :
tx/rx : Yaesu FTDX-10 ; SSB 100 W , CW qrp 10 W
ant / coupler: 1.81 MHz : T-antenna (dipole 2x17m short-outed at the beginning end of the ladder-line, excited against ground); low loss unbalanced Cs-Lp-network
ant / coupler: 3.5 MHz / 5.3515 MHz / 7.1 MHz / 10.1 MHz: NVIS-dipole 2 x 17m, height 4.5 to 8 meters / 600 Ω symmetric feed line / coupler at 6m over ground:
low loss symmetric Cs-Lp- (high-pass) -network
ant / coupler: 14.0 MHz / 18.1 MHz / 21.0 MHz / 24.9 MHz / 28.0 MHz for each band: monoband ground plane, feed point 6m over ground with coupler at the feed point:
LC-network (C serial and L parallel to discharge electrostatic charge)
technical data / working conditions (Italy) :
tx/rx: Xiegu G90: 20 W / optionally Hardrock-50 power amplifier : 50 W
ant : 3.5 MHz - 29.7 MHz : dipole 2 x 20 m, about 10m above ground / 600 Ω symmetric feed line / coupler : low loss symmetric Ls-Cp- (low-pass) -network
qrv (Zurich) :
1.81 - 2.0 MHz: 20 W
5.3515 - 5.3665 MHz : 15 W EIRP
3.5 - 3.8 MHz, 7.0 - 7.2 MHz: 100 W
20m, 17m, 15m, 10m : 100 W
operating modes: CW / SSB HF-Propagation analysis with: Reverse Beacon Network (RBN), websdr/kiwisdr, WSPR
qsl : electronic qsl (if requested) via : www.eqsl.cc
contact : hb9awj [at] de-suisse.ch
qth locator Italy (temporarily) : JN53HH
Special interests: low loss transmission by choosing the optimal antenna coupler and the optimal feed line. End fed wire antennas.
Planning and pre-calculations for optimized antenna systems regarding hf-energy losses.
To see examples click buttoms on the right: <balanced antenna tuner> <end fed half-wave antenna> <air core balun>
technical data / working conditions (Zurich) :
transmitting / antenna systems :
tx/rx : Yaesu FTDX-10 ; SSB 100 W , CW qrp 10 W
ant / coupler: 1.81 MHz : T-antenna (dipole 2x17m short-outed at the beginning end of the ladder-line, excited against ground); low loss unbalanced Cs-Lp-network
ant / coupler: 3.5 MHz / 5.3515 MHz / 7.1 MHz / 10.1 MHz: NVIS-dipole 2 x 17m, height 4.5 to 8 meters / 600 Ω symmetric feed line / coupler at 6m over ground:
low loss symmetric Cs-Lp- (high-pass) -network
ant / coupler: 14.0 MHz / 18.1 MHz / 21.0 MHz / 24.9 MHz / 28.0 MHz for each band: monoband ground plane, feed point 6m over ground with coupler at the feed point:
LC-network (C serial and L parallel to discharge electrostatic charge)
technical data / working conditions (Italy) :
tx/rx: Xiegu G90: 20 W / optionally Hardrock-50 power amplifier : 50 W
ant : 3.5 MHz - 29.7 MHz : dipole 2 x 20 m, about 10m above ground / 600 Ω symmetric feed line / coupler : low loss symmetric Ls-Cp- (low-pass) -network
qrv (Zurich) :
1.81 - 2.0 MHz: 20 W
5.3515 - 5.3665 MHz : 15 W EIRP
3.5 - 3.8 MHz, 7.0 - 7.2 MHz: 100 W
20m, 17m, 15m, 10m : 100 W
operating modes: CW / SSB HF-Propagation analysis with: Reverse Beacon Network (RBN), websdr/kiwisdr, WSPR
qsl : electronic qsl (if requested) via : www.eqsl.cc
contact : hb9awj [at] de-suisse.ch