Activity from 472 kHz to 432 MHz, all modes.
Phased verticals for 80m
Set-up for 472 kHz
Overview: TS480 (RX), HEXFET TX and power supplies
HEXFET TX. Low pass filter on the rear side, Output toroid under the fan. Oscillator is a DDS unit (30 Euro, ebay) on 944-958 kHz, followed by a (keyed) divider 4013, providing two outputs with 180 degrees phase shift, and driving two driver ic's ICL7667. FETS are IRFP360LC. Tx runs maximal 600 Watts. Efficiency 85%. The power supply is a surplus 50V telecom unit from a fleamarket ($30). TX/RX relay and CW-VOX on the right side of the board.
Tuner for tuning the 160m inverted L to 472 kHz. Estimated efficiency of the antenna: 5%
Transceivers: Kenwood TS480, Yeasu FT100, Elecraft K3, KX1.
Home made transverters and transmitters for 500 kHz, 70 MHz.
Linear: home made with 3x813, Expert 2K-FA.
Steppir 3 elements for 7-50 MHz with 1 extra director for 50 MHz and 3 extra elements for 70 MHz (thanks G4EZT, see his webside).
I no longer use the ''trombone element" for 30/40 meters. It was not reliable. Instead, I made a 5 m long dipole 8 inch above the boom, with the director/reflector as a (tunable-) top load. Impedance about 12 Ohm, so you have to insert a 1:4 balun, but that is not very difficult (I refer to: QST june 2007). This is a very good and cheap alternative for the ''trombone"
Inverted L(s) for 1,8 MHz.
(Phased) vertical(s) for 3,5 MHz.
Sloping dipole for 7/10,1 MHz with traps.
Beverages in 4 directions; DHDL loops.
DXCC: nr 1 Honor roll (340) mixed and SSB, 339 CW.
160m: dxcc 309 worked and 309 cfmd, WAS and WAZ (40 zones).
DXCC challange: around 3130 band points.
50 MHz: WAC, WAZ 30 zones, DXCC 169 countries worked.
Winter time, few years ago: house, beam and inverted L
1890905 Last modified: 2015-04-20 17:41:39, 2815 bytes
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