GB3LEX is a 3cm Microwave Beacon.

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Tx Freq
Power
Antenna
Locator
Keeper
Status
10368.955Mhz
1w (erp)
Slotted Wave guide
IO92IQ
Geoff G3TQF
On Air

 

The transmitter comprises a 108.010MHz ovened xtal oscillator F2 modulated. The frequency is locked using the reverse DDS technique to a GPS referenced 10MHz source. 

The output of the 108.010MHz source is fed to a mast mounted box containing a frequency multiplier and amplifier producing a filtered output at 10368.955MHz of 1.0Watts.

The antenna is a waveguide slotted on both sides thus producing an approximately omni radiation pattern with a peak erp of 10dBW.


Comments  

+1 #5 admin 2019-03-31 10:07
After extensive testing, GB3LEX was returned to service on 31st March 2019.
#4 admin 2018-11-29 22:24
After receiving a report of interference from a local user, the beacon was taken off-air for investigation at 14:50UTC on 29th November 2018
#3 admin 2018-06-08 11:27
The beacon has now been returned to service as of 07 June 2018.
#2 admin 2016-11-03 07:40
Further to our investigations, the beacon appeared to be operating at much reduced power so it has been removed from the mast for further investigation.
#1 admin 2016-10-29 21:05
We have received a report that the beacon is currently off-air and we are investigating.