The Sirio SDB 702 is a compact, dual-band VHF/UHF mobile antenna engineered in Italy for 2-metre and 70cm amateur radio use. Covering VHF 141–149 MHz and UHF 430–440 MHz with no tuning required on either band, it delivers 0 dB VHF gain and 2 dB UHF gain (referenced to a λ/4 whip) with 100W CW power handling. Compatible with 2m HAM, 70cm HAM, ORBCOMM M2M, TETRA, CDMA-450, and ISM/SIGFOX/LoRa 433MHz, it's a versatile and discreet mobile antenna for a wide range of applications. Supplied with a 5m (16.4ft) RG58 coax cable and designed for thru-hole mounting, it stands at just 470mm (1.54ft) tall and weighs only 360g. Note: connector not supplied. Constructed from chromed brass, stainless steel 17/7 PH, and nylon. Key Features 100W CW power handling VHF: 141–149 MHz — no tuning required UHF: 430–440 MHz — no tuning required Gain: 0 dB VHF / 2 dB UHF (ref. λ/4 whip) Compatible systems: 2m HAM, 70cm HAM, ORBCOMM M2M, TETRA, CDMA-450, ISM/SIGFOX/LoRa 433MHz Omnidirectional radiation pattern Linear vertical polarisation VHF: 1/2λ design | UHF: 5/8λ design Supplied with 5m (16.4ft) RG58 coax cable Thru-hole mounting for a clean, integrated vehicle fit Height: 470mm / 1.54ft Weight: 360g / 0.79lb Note: connector not supplied (bare cable end) Premium materials: chromed brass, stainless steel 17/7 PH & nylon Made in Italy by Sirio Technical Specifications Type: VHF 1/2λ / UHF 5/8λ dual-band mobile antenna Radiation: Omnidirectional Polarisation: Linear vertical VHF frequency range: 141–149 MHz (no tuning required) UHF frequency range: 430–440 MHz (no tuning required) Systems: 2m HAM, 70cm HAM, ORBCOMM M2M, TETRA, CDMA-450, ISM/SIGFOX/LoRa 433MHz Gain: 0 dB VHF / 2 dB UHF (ref. λ/4 whip) Max power: 100W CW Cable: 5m (16.4ft) RG58 Connector: Not supplied Height: 470mm / 1.54ft Weight: 360g / 0.79lb Mounting: Thru-hole Materials: Chromed brass, stainless steel 17/7 PH, nylon Country of origin: Italy
