Tender For supply of trans-receiver handheld 5-watt digital vhf set along with two set of oem approved recharge able battery including one as spare, quick battery charger, helical antenna and belt clip conforming to rds o specification no. rdso/spn/tc/107/2018 rev 2.1 or later. additional requirements: 1) spot frequency - 1 61.150 mhz 2) technical parameter of vhf set should be as per ci 5-b (without display) of rdso specification rdso/spn/tc/107 /2018 ver. 2.1 or later with following special feature - "operate in both anal og and digital mode, it should switch over to analog/ digital mode automatically as per received signal irres pective of presently selected mode (analog/digital)" 3) battery type - li-ion. 4) battery capacity - minimum 2300 mah. 5) one number of tuning kit with software to program shall be provided per 200 sets. 6) spare antenna for vhf set: 10% of total vhf set quantity antenna shall be provided as spare. 7) warranty - warra nty for radios and rapid chargers shall be covered for at least 5 years, warranty for battery packs shall be f or at least 1 year. [ warranty period: 60 months after the date of delivery ]