Kees Verruijt wrote in
ll.nl:

Type "swr meter vhf site:uk" and up they pop. Most of them seem radio
ham oriented, but I was quickly able to find one that's GBP 29.95, which
sounds reasonable.



Just make sure they are for the 156 Mhz range in their specs. Many ham
radio SWR meters are only for frequencies below 30 Mhz...the HF band.