KOTA-CHITTORGARH & KOTA-RUTHIYAI Section - Provision of VHF (Very High Frequency) based approaching train warning system for track maintainers & petrolmen (28 No. VHF Transmitter & 307 No. hand Held Receiver).

Item Breakup - A-NS items

Supplying, installation and commissioning of Each digital signal modulator - Portable UP, DN & UD transmitter - "DSM25SUDM-1" for transmitting the train approaching UP, DN & UD signals to the corresponding digital signal receiver - (RAKSHAK) including maintenance for Two years. Specifications :- Working on VHF frequency 160.45 MHz. with antenna and cable, built in battery 12V / 7AH, battery charger working on 220VAC, incorporated with 12V DC battery with charger. charger should have a 13.8 V/2Amp CVCC mode for charging battery. portbale UP/DN transmitter should have following facility: mode switch to start & stop transmitter. mains socket to connect 230VAC through mains cord, for charging battery. manual trigger switch, UP & DN for transmitting signal manually. External terminal block screw connector (4way) for connecting :- "UP" trigger contact from relay room. "DN" trigger contact from Relay room. dimension of 'portable UP/DN Transmitter" :- shall be less than 200x275x200mm (WXDXH). net weight " portable UP/DN transmitter" shall be less than 9kg. Note:- rate inclussive of all i.e. Excise tax, VAT/GST and installation charges.

Supplying and commissioning digital signal Each receiver RAKSHAK to receive signal transmitted from digital signal modulator "DSM25S-UDM-1" including maintenance for Two years Specifications: working on VHF frequency 160.450MHz., inbuilt battery. Housing in small pocket model (mobile phone type) with built in antenna and rechargeable battery. facility to connect external battery charger. battery charging status is indicated by LED. belt-hanging arrangement. dimention of "RAKSHAK":- shall be less than 20x50x150 (WXDXH), (H=100 unit + 50 Antenna = 150). Net weight "RAKSHAK":- shall be less than 150Gms. 5mm LED indication:- UP Signal received Blue LED DN Signal received Yellow LED. Bi Directional received Green LED. Note:- Rate inclusive of all i.e. Excise tax, VAT /GST and installation charges. Total 23827386.00