The Diamond SRH795 is a premium wideband telescopic handheld antenna engineered for radio scanners, frequency counters, and portable transceivers. Manufactured in Japan to Diamond Antenna’s rigorous engineering standards, it covers an ultra-broad continuous frequency spectrum from 70 MHz up to 1000 MHz (1 GHz), delivering substantially higher reception sensitivity and gain compared to standard OEM rubber duck antennas.
Featuring a multi-section telescopic mast that extends to an impressive 113 cm (44.5 in) yet retracts down to just 17 cm (6.7 in), the SRH795 strikes an exceptional balance between portable convenience and maximum RF performance. Electrically designed as a 1/4-wave radiator across 70–300 MHz and a 5/8-wave element across 300–1000 MHz, it delivers 2.15 dBi of gain while supporting up to 10 W of transmit power in FM mode. Equipped with a standard SMA Male (SMA-P) connector, it screws directly onto handheld radios and scanners featuring a chassis-mounted SMA Female jack.
Recommended Applications
Wideband Scanner and Receiver Monitoring
Ideal for monitoring civil and military VHF/UHF airband, amateur radio (2 m and 70 cm), marine channels, emergency services, and public safety trunking systems up to 1000 MHz.
Portable Field Operations
Collapses down to an ultra-compact 17 cm for easy packing in gear bags, allowing full 113 cm extension on demand when pulling in weak or distant signals.
Handheld Transceiver Operations
Supports RF transmission on licensed frequencies with power levels up to 10 W FM, allowing element length adjustments to optimize resonant tuning.
Why Choose the Diamond SRH795?
Unlike fixed-length whip antennas that compromise broad reception bandwidth, the Diamond SRH795 utilizes high-grade brass telescoping sections engineered for minimal contact resistance and maximum durability. Its broad extension ratio enables operators to physically adjust the antenna length to match target wavelengths, significantly reducing ambient noise and improving signal-to-noise ratio across complex RF environments.
Technical Specifications
| Feature | Specification |
|---|---|
| Brand | Diamond Antenna |
| Model | SRH795 |
| Frequency Range | 70 – 1000 MHz (Wideband) |
| Electrical Type | 1/4 λ (70–300 MHz) / 5/8 λ (300–1000 MHz) |
| Gain | 2.15 dBi |
| Maximum Power Rating | 10 W (FM) |
| Nominal Impedance | 50 Ohms |
| Connector Type | SMA Male (SMA-P with internal threads and center pin) |
| Extended Full Length | 113 cm |
| Retracted Length | 17 cm |
| Weight | 50 g |
Key Highlights
- Continuous wideband reception coverage from 70 to 1000 MHz.
- Dual electrical configuration: 1/4-wave (70–300 MHz) and 5/8-wave (300–1000 MHz).
- 2.15 dBi gain for superior long-range signal acquisition.
- Handles up to 10 W FM RF transmit power.
- Expands to 113 cm for peak reception; collapses to 17 cm for easy transport.
- Standard SMA Male (SMA-P) connector for direct radio attachment.
- Lightweight 50-gram build with genuine Diamond Antenna manufacturing quality.
Package Contents
- 1x Diamond SRH795 Telescopic Wideband Antenna (SMA Male).
Frequently Asked Questions
Does the antenna need to be fully extended at all times?
For general wideband scanning, fully extending the antenna provides maximum aperture and sensitivity. When transmitting on specific VHF or UHF amateur frequencies, tuning the physical length closer to the resonant fraction of the wavelength will optimize SWR and radiation efficiency.
What does connector “SMA-P” stand for?
“SMA-P” (Plug) indicates an SMA Male connector featuring internal threading with a protruding center pin. It connects directly to handheld radios, communications receivers, or scanners with a chassis-mounted SMA Female jack.
