[SMCARA] 64 Repeater

[Clarke, Tom AIR4.0P NATOPS]

All,

The 146.64 K3HKI repeater had a problem yesterday and is now fixed.  The temporary PA broke into oscillation, locked in the transmit mode, and was transmitting garbage which caused noise and  frequent random resets of the controller.  When I got to the site the amp was too hot to touch.

I have replaced the PA with a new one and installed a fan on the heat sink to help cool it.  The AC in the hut is not working, so the fan may help.  The power is still about 8-10 watts into the duplexer, with 5-6 making it to the antenna (6 db gain).

Still working on replacing the regular 110 watt repeater PA, which we run at 1/2 throttle for longevity.

73 Tom/W4OKW

Tom Clarke
Wyle Labs,  Aeronautics
NATOPS Program Support Specialist
USN/USMC National Airworthiness Office
Naval Air Systems Command, AIR-4.0P
(301) 995-3793/DSN 995-3793
Fax: (301) 757-6599
Cell (301) 904-2053
frederic.clarke at navy.mil