Diamond SRH770S Handheld Multiband Antenna

Further details of Diamond SRH770S Handheld Multiband Antenna

The Diamond SRH770S is a dual-band antenna designed for handheld radios with an SMA antenna connection. It is intended for use on the 2-meter and 70-centimeter amateur radio bands. The antenna measures 70 cm when assembled and features a detachable two-piece construction with steel and flexible radiating elements.

Diamond SRH770S dual-band antenna technical specifications

• Brand: Diamond
• Model: SRH770S
• Product type: handheld radio antenna
• Frequency bands: 2 m and 70 cm amateur radio bands
• Specified frequencies: 144 MHz and 430 MHz
• Electrical length at 144 MHz: 3/8 lambda
• Electrical length at 430 MHz: 3/4 lambda
• Assembled length: 70 cm
• Construction: detachable two-piece design
• Connector: SMA

SRH770S antenna construction

• Longer antenna element: 45 cm steel rod with threaded end
• Shorter antenna element: 25 cm, made from flexible, bendable material
• The two antenna elements are connected through a matching coil
• The antenna elements can be unscrewed and transported separately when not in use

Diamond SRH770S connection and accessories

• SMA antenna connection
• Included rubber ring fits over the radio's SMA connection
• The rubber ring provides dust sealing and helps reduce mechanical impact
• The antenna consists of two connectable elements

Applications and handling considerations

The SRH770S is designed for amateur radio operation with handheld transceivers. Its detachable construction allows the two radiating elements to be transported separately when the antenna is not in use.

Due to the antenna's 70 cm length, particular attention should be paid to mechanical stress on the radio's antenna connector and housing. Handheld radios are generally designed to withstand the mechanical loads imposed by their supplied antennas.