supply of 5 watt vhf handheld transreceiver set5 watt vhf handheld transreceiver set,5 watt vhf handheld transreceiver set for the use of driver-guard and other than driver gu ard communication over indian railway complete with battery along with all accessories as per rdso speci fication no. rdso/spn/tc/107-2018 ver. 2.0 or latest. ( i ) single unit radio battery rapid charger 230 v wit h adopter grounded/earthed 3 pin connections. ( type d ) ( ii ) spring action belt clip ( iii ) helical antena ( i v ) user and operation manual ( v ) spare battery. specified item as per clause 10 of rdso specifications: c lause 10.1 spot frequency: full band frequency i.e. 146 mhz to 174 mhz. clause 10.2 technical parameter : as per clause 5a. clause 10.3 battery type : ni-mh/li-ion. clause 10.4 battery capacity- 2300 mah or more. clause 10.5 not applicable. clause 10.6 not applicable. clause 10.7 not applicable. [ warranty period: 30 months after the date of delivery ] ]