Russian FPV control uses multi-band reception and wide FHSS to resist jamming

Ukrainian EW specialist Serhii Flash reports growing difficulty jamming FPV control links (notably VT40) because Russian operators are using distributed command reception across multiple bands and expanding frequency-hopping (FHSS) bandwidth to ~200–500 MHz. This is a communications/EW resilience tactic that reduces effectiveness of fixed-spec jammers and forces defenders to do active frequency detection and sector-specific tuning rather than broad, blind jamming.