Latest news As of 22nd August 2024: GB3CAM HAS BEGUN OPERATING FROM ITS  NEW SITE AT HADDENHAM A great deal of thanks are owed to John G4NPH and Aidan 2E1NPH for hosting the beacons at the family QTH The old web site is archived here:  http://www.earf.co.uk/GB3CAMarc.htm

The Haddenham site is some 27m asl, with both antennas at 8m agl.

A 'heywhatsthat.com' picture with line-of-site overlay reveals the following:

For more information on the individual beacons contact:  Bernie G4HJW (3cm) or John G4BAO (1.2cm )

Both red and infra-red optical beacons that were installed at Wyton were retired from service when the beacons were moved to Haddenham
 
___________________________________________________________________________________

Extra notes and links:

Latest 3cm beacon frequency measurement: 88Hz high (21.09.24)
                                                              350Hz high (17.02.25)
                                                        148Hz high (30.12.25)
                                                  91Hz high (01.02.26)
                                                150Hz high (11.03.26)
                                           58 Hz high (18.04.26)
                                        149 Hz high (15.05.26)

Detailed information on the 3cm transmitter can be found here

Two easy ways to monitor the 3cm beacon band