tender for procuring four 10w walkie-talkie for the use of range special protection camps and inter section special protection camps under periyar range during the year 2025-26 , cost of procuring micro plus vhf handset digital radios, 10w max power, li-ion 2600 mah heavy battery, single unit charger, standard vhf antenna, 2 belt clip, etc. including gst specifications general frequency coverage: [tx/rx] 136.000-174.000mhz mode: f3e (16k0f3e (wide band) /8k5f3e (narrow band)) programmable channels: 198 channels frequency stability: ±2.5ppm power supply requirement: 7.4v dc usable temperature range: -10°c~+60°c dimensions (projections not included/approx.): 61mm(w) x 125.5mm(h) x 36.5mm(d) inches weight: approx.280g inclusive of battery pack and antenna. projections are not included in the declared dimension values. transmitter output power: approx.10w/5w/1w modulation system: variable reactance fm spurious emissions: less than -27db max. frequency deviation: ±5khz(wide band),±2.5khz (narrow band) receiver receive system: direct conversion sensitivity (12db sinad wide/narrow): =0.2?? audio output power: 0.5w audio distortion: less than 5%