procurement of vhf accessories procurement of vhf accessoriesat iocl vadinar , intrinsic safe battery for vhf handheld radiomake : motorola , model : xir-p8668i , specs : 7 . 4v rechargeable lithium ion battery , 7 . 4v with 2900mah capacity , part no . : pmnn4489a ( as per technical sepcifications and summary of requirments ) , helical antenna , motorola , xirp8668 ( as per technical sepcifications and summary of requirments ) , power knob ( switch ) for vhf handheld radiomake : motorola , model : xir-p8668i ( as per technical sepcifications and summary of requirments ) , channel knob ( switch ) for vhf handheld radiomake : motorola , model : xir-p8668i ( as per technical sepcifications and summary of requirments ) , intrinsic safe battery for vhf handheld radiomake : motorola , model : gp 638 plus , specs : 7 . 4v rechargeable lithium ion battery , 7 . 4v with 11 . 8wh capacity , part no . : pmnn4073a ( as per technical sepcifications and summary of requirments ) , helical antenna for vhf handheld radiomake : motorola , model : gp 638 plus ( as per technical sepcifications and summary of requirments ) , power knob ( switch ) for vhf handheld radiomake : motorola , model : gp 638 plus ( as per technical sepcifications and summary of requirments ) , channel knob ( switch ) for vhf handheld radiomake : motorola , model : gp 638 plus ( as per technical sepcifications and summary of requirments ) , volume knob , gp-338 ex-proof radio ( as per technical sepcifications and summary of requirments ) , channel knob suitable for motorola gp-338ex-proof radi0 ( as per technical sepcifications and summary of requirments ) , microphone for vhf base: motorolapart no . : pmmn4007a ( as per technical sepcifications and summary of requirments )