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Diamond Antenna SRH320A Tri-band HT Antenna - SMA M

Diamond Antenna SRH320A

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CB Radio Technicians since 1986

Unlock the full potential of your radio with our in-house radio technican upgrade services. Don't leave any potential for performance on the table, and ensure your new radio equipment has been thoroughly tested and verified to operate at it's maximum potential.

Improved Range & Clarity

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Optimized for Ehanced Usability

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In Stock
$46.95
Product Highlights
  • High-performance tri-band antenna for handheld radios operating on 2 meter, 1.25 meter (220 MHz), and 70 centimeter bands. With a longer flexible design and improved efficiency, it delivers stronger transmit and receive performance across all three bands.
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⚠️ Please Note

The built-in SWR function will no longer work with this modification selected.

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  • Description

Built to cover 2m, 220 MHz, and 70cm, this antenna offers a noticeable upgrade over stock antennas, especially on UHF and 220 where performance is often lacking. Its longer design allows for better radiation efficiency and improved receive sensitivity, helping you reach repeaters and pull in weaker signals more reliably.


This antenna is a great fit for radios like the VX-6R, TH-F6A, and other tri-band handhelds where full band coverage matters.

SRH320A Features

  • Tri-band operation2m (144–148 MHz), 1.25m (220 MHz), 70cm (430–450 MHz)
  • Additional Features
  • Improved performance over stock antennas across all bands
  • Longer 13.75" design for better efficiency and range
  • Flexible whip construction for durability
  • Wideband receive capability (approx. 120–900 MHz)
  • SMA-Male connector (fits most HT radios with SMA-Female ports)

SRH320A Technical Specifications

Frequency Range (TX)144–148 / 222–225 / 430–450 MHz
Receive RangeApprox. 120–900 MHz
Gain~4.0 dB (relative)
Length~13.75 inches
Power Rating10 Watts
ConnectorSMA-Male
Impedance50 Ohms

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Contact Us

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  • Walcott Radio
  • 2940 N Plainview Rd Walcott
  • Walcott, IA 52773
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  • Phone Support
  • 1-844-925-2688
  • M-F 10am to 5pm CST
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  • Sun Closed
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