23cms ATV

The 23cms band is the most commonly used band for ATV.

Frequency allocations

The UK allocation is from 1240MHz to 1325MHz and common ATV useage is as follows:

• 1248 - 1249 MHz = repeater input

• 1255 Mhz = simplex

• 1275 MHz = simplex or alternative repeater input as determined by the CAA (primary user).

• 1300 - 1325 = repeater outputs

For details of current 23cms ATV repeaters see https://www.ukrepeater.net/tvr.htm?filter1=23cm

For 23cms UK bandplan see https://thersgb.org/services/bandplans/html/rsgb_band_plan_2018.htm

For other 23cms information see the UKmicrowave group wiki page.

23cms equipment

The most commonly used FM ATV was made by Comtech - see this page for more details: https://wiki.batc.org.uk/Comtech_module

During the 1980's, Wood & Douglas produced a range of 1.3GHz FM TV equipment that gave many amateurs their first taste of microwave ATV operation. See this page for more details: https://wiki.batc.org.uk/Wood_%26_Douglas_FM_TV_equipment

For 23cms Power amplifier designs see https://wiki.batc.org.uk/23cms_amplifiers

For details on filters for 23cms see https://wiki.batc.org.uk/23cms_filters