W4ZT UHF Repeater
 
Union City, Georgia
442.125 MHz (+5 MHz) tone required 100 Hz
 
Down East Microwave DEM70LNAK - 70 cm GaAs-FET Pre-Amplifier kit
Gain=17 db and Noise figure <.7 db
 
 
(click the small pictures to see a larger picture in a new browser window)
This is the preamp kit as it comes.
 
These are the small parts. The surface mount GaAs-FET is in the small square package on the lower left. The other SMDs are in the little plastic tubes with the pointed ends.
 
The box top with the connectors and feed-through capacitor mounted.
 
The circuit board is mounted on the underside of the top with the connectors and feed-through capacitor connections coming through holes in the board. All the other components are then soldered to the board.
 
Closeup of the board components.
 
The completed pre-amp.
 
Other pre-amps are available from http://www.advancedreceiver.com


Last update March 27, 2005