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Tender For tender for supply of 50w vhf duplexer with bnc female connectors on tx, rx & n female on antenna port, wide frequency band,low vswr, low attenuation accuracy, widely usedfor inbuilding solutions,frequency range136- 174mhz,vswr≤1.4 bandwidth±150khz,rx-tx min. spacing 3mhz, insertion loss≤1.2db, isolation≥80db,max. i/p power 50w, normal impedance 50ω, connector , repeater interface units- audio in- 400mv, audio out10mv-2v adjustable, ptt sink- open collector (0v24v), channel spacing- 25/20/12.5khz, busy signalhigh to low, low to high (jumper selection), supply +12v dc, current- 100ma front panel switch-repeater mode/ local mode,front panel led- rpt,cor, pwr, back panel- power on/off swtich,d-type 15 pin connector for radio in/out signal, repeater type- bi/uni directional, licensing (if required) shall be in party scope , smps power supply for vhf static/ mobile radio- dc current capacity- max 10a,type- smps/ linear, input voltage- 230v±10% at 50hz, output voltage- 13.5v dc±5% on min 80% load, continuous duty operation, float and boost charging, protection- short circuit and reverse polarity protection,efficiency 11 battery cable- more than 80% forsmpsand more than 50% for linear power supply,weight- less than 5kgs