BAOFENG SRJ-77 Dual-Band Antenna — 40 cm

The BAOFENG SRJ-77 is a flexible dual-band antenna, 40 cm long, with a reverse SMA female connector, designed to improve the radio performance of handheld radios used in airsoft over the stock antenna. It operates on the 144 MHz and 430 MHz bands, with a gain of 2.15 dBi and a maximum power handling of 10 W. Use of the indicated radio frequencies requires the appropriate licence: check the regulations in force in your country before operational use.

The 2.15 dBi gain over a standard quarter-wave antenna translates into more stable transmission and reception at the edges of the field, where signals tend to degrade. The difference is most noticeable in built-up or wooded environments with many obstacles, where stock antennas reach their limits. The flexible construction allows the antenna to be folded to reduce bulk when the radio is stowed or clipped to the body without protruding awkwardly.

One trade-off is worth spelling out: a longer antenna improves gain but increases lateral profile and can snag on vegetation or kit. At 40 cm, the SRJ-77 strikes a balance between performance and manageability, though operators working in very confined spaces may prefer a shorter antenna and accept the reduced range. Compatibility with the listed models is provided by the reverse SMA female connector, which is the BAOFENG standard: check the connector type on your radio before purchasing, as not all fittings of this format are interchangeable.

Key points

• Operates on 144 MHz and 430 MHz: a single antenna covers both bands used in portable VHF/UHF radios.
• The 2.15 dBi gain improves coverage over the stock antenna, particularly in scenarios with many obstacles.
• The flexible body absorbs mechanical stress and bends without damaging the connector when knocked or in contact with kit.
• Compatible with a wide range of radios: BAOFENG UV-5R and variants, UV-82 and variants, Yaesu FT-4X and FT-65, AnyTone AT-D868UV and AT-D878UV, Wouxun KG-UVD1P, Alinco DJ-500/MD5/VX50, Quansheng TG-UV2 Plus and UV-R50, Puxing with male SMA connector.
• Maximum power of 10 W: compatible with all handheld radios in this category without risk of overload.

In the box

• BAOFENG SRJ-77 dual-band antenna