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Active from 472 kHz to 432 MHz, all modes.


Phased verticals for 80 meter during the winter. In the summer only one vertical for 80/60m.

 

 

Set-up for 472 kHz, good for trans atlantic QSO's with VO1NA

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, ebay)  944-958 kHz, followed by a (keyed) divider IC 4013, providing two outputs with 180 degrees phase shift, and driving two drivers  ICL7667. FETS are IRFP360LC. Output with 50 Volts on the FETS is 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%

 

Equipment:

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.

 

Antennas:

Steppir 3 elements for 14 - 28 MHz (since 2003) with 1 extra director for 50 MHz and 3 extra elements for 70 MHz (thanks G4EZT, see his website).

Inverted L(s)  for 1,8 MHz.

Vertical for 5,4 MHz

(Phased) vertical(s) for 3,5 MHz.

Sloping dipole for 7/10,1 MHz with traps.

Dipole for 10,1 MHz

Beverages in 4 directions;  DHDL loops.

 

Results:

DXCC: nr 1 Honor roll (353, deleted included) Mixed and SSB, 338 CW.

160m: dxcc 312 (deleted included) worked and 312 cfmd, WAS (50 States) and WAZ (40 zones).

DXCC challenge: around 3150 band points.

50 MHz: WAC, WAZ 31 zones, DXCC 179 countries (deleted included) worked.

Winter time, few years ago: house, beam and inverted L

8473256 Last modified: 2017-11-25 08:55:13, 2615 bytes

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