Correction on 118.00 list in a few tables as an air to air frq but only in UK with it allocated to a few places and operations. Not well defined legaly.
123.45 is an international air to air frq but only over remote areas and oceans with no contact to a ground station, so not legal over southern England.
Only other international frqs are as expected 121.5 also 123.1 SAR frq used during an emergency if needed.
Always thought it a bit stupid there is no reserved air to air haling frq.