bids are invited for custom bid for services - maintenance contract of 216 nos of fog safe devices a paul make of fzr ldh juc asr ptk jat and bdgm with supply of spares on need basis during fog season 2023 24 for three months , custom bid for services - supply and replacement of 70 nos gps antenna for fsd a paul make or similar 1575 to 42 mhz 3 0 5 volt the wire should be nonbreakable , custom bid for services - supply and replacement of 62 nos a paul make battery or similar approved as per rdso spec no rdso spn 201 2010 and shall be sufficient to provide 18 hours backup when fully charged , custom bid for services - supply of 40 nos battery charger compatible to a paul make fsd sets spec 140 v rated current 338 milliamp rated power 30 w with led indicator frequency range 47 to 63 hz protection 901 10 constant current mode and over ..