GB3UM is a 6m narrowband FM phone repeater operated by the Leicestershire Repeater Group. 

Tx Frequency
Rx Frequency
Power
Antenna
Access
Locator
Keeper
50.740Mhz
51.240Mhz
25w (erp)
Folded Center Fed
CTCSS C:77hz only
IO92IQ
Nigel M1NAS

The Leicestershire Repeater Group launched a new repeater for the six-meter band. This is GB3UM (Uncle Mike) which has been built and dedicated specifically to the memory of 'Jack Hum G5UM' who's story follows:

Biography of Jack Hum G5UM by Deryk Wills G3XKX.