My Equipments

 

 MY HomeBrew satellite antenna

 

 

 

 

 

The CP switching relay inside the boom

at the base of the Gama match covered by

box as in the picture .The delay coax  loop behind

the box.

 

 

UHF CP X YAGI

 

 

A Homebrew VHF - UHF cross  yagi with a changable CP 

 

----------------------------------------------------------------------------------------------------------------------------

 

 

  A SIMPLE   VHF UHF YAGI  ON A SINGLE BOOM

 

------------------------------------------------------------------------------------

 

 

ANOTHER SIMPLE YAGI FOR VHF

 

------------------------------------------------------------------------------------

 

HomeBrew L Band Q-yagi

a project from ARRL HandBook

-------------------------------------------------------------------------------------

 

 

 

HOMEBREW HELICAL UHF SATELLITE ANTENNA

 

------------------------------------------------------------------------------------

 

 

 

HOMEBREW EGGBEATER

 

------------------------------------------------------------------------------------

 

A Homebrew CI-V

 

 

 

Homebrew CI-V using MAX 232 IC

 

--------------------------------------------------------------------------------------

 

HomeBrew - FODtrack

 

 

 

 

Homebrew FOdtrack Rotator Interface

I added a 4 blue  Relays to drive a 120  AC volt  Rotator.

Notice the multie heavy wires from the relays

are going direct to the rotator.

calbration of the rotator by a variable multi turn pot

for the AZ. and one turn variable pot for EL

calabrated  by  the gravity.

 

 

----------------------------------------------------------------------------------

 

Homebrew Rotor modification

multi turn pot for AZ with homebrew mechanical device

 

 

--------------------------------------------------------------------------------------

 

Another HomeBrew FODtrack for G5500 yaesu rotoator

 

 

 

------------------------------------------------------------------------------------

 

HOMEBREW VHF PRE AMP

 

 

------------------------------------------------------------------------------------

 

HOMEBREW SOUNDCARD INTERFACE

 

 

-------------------------------------------------------------------------------------

 

ANOTHER HOMEBREW  SIMPLE PC KEYING INTERFACE CIRCUIT

 

 

73 DE ST2NH