VHF Low Level (LL) Common Frequency

The VHF Low Level (LL) Common Frequency is being permanently introduced in the UK.

With an ever-increasing trend of Military versus Civilian aviation AIRPROX below 2000 FT AGL, the aim of the LL Common Frequency is to improve the barriers to mitigate against Mid-Air Collisions in the UK Low Flying System (UKFLS).

The channel assigned is 130.490 MHz and is to be known as the “LL-Common Frequency”.

Details of the LL Common Frequency can be found in AIC P 047/2023