Tender For supply of supply of vhf air band transeiver sets at chennai airport : :-vhf ground to air band base radio , supply of vhf ground to air band mobile or vehicle radio , supply of vhf ground to air band hand held radio , supply of 13 point 5v or 10amps ac dc smps power supply unit cum battery charger , programming software for windows pc , rechargeable li ion 7 point 2 v battery , desktop chargers , suitable headset , supply of rg58 cable of 10 mtrs legnth , daily rouine checkup and maintenance charges