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9.5 Inch High Performance SCANNER RADIO Antenna (100 - 1500 MHz)

HRO Discount Price: $148.95*


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Current Stock Status At These Ham Radio Outlet Locations
SCAN-III Description     Hide

SCAN-III  Compact High Performance SCANNER RADIO Antenna  100 - 1500 MHz


  • Civilian - VHF & UHF Air bands, Amateur Radio, Weather Channels, etc.
  • Commercial - Trucking, Dispatch, Railroad, Aeronautical, etc.
  • Government - Public Service-Safety/Local, State, Federal Govt/Military Frequency Bands, Police, Fire, Sheriff, Emergency Medical, State Highway Patrol, Homeland Security, U.S. Federal, Military, Marine, Aircraft, etc.

Digital & Analog

Land Based and Satellite Communications

Antenna Type:  Unique Electric/Magnetic Field Diversity Science & Technology Patented Design    Patent No. US 9,407,001

With a special design construct of spiraled and cylindrical metal sheeting including ‘extended flat monofilar spiral Tesla-like coils’, all resistance, inductance and capacitance (matching) is efficiently done by the physical metallic geometric form of the antenna itself, as opposed to internal or external (lossy) components of other designs.

“Magnetic Field Resonator”:  This built-in resonating matching system is an effectual component of the electromagnetic E & H fields production, resulting in better performance than expected for such a small antenna.

With a particularly strong magnetic near field, proximity noise is reduced.

And resulting diverse effective electromagnetic fields (elliptical polarization and phase diversity) as well as broad elevation coordinate signal pattern provides stabilized signals in our common Non-Line of Sight environments, with temperature and humidity inversion pathways & tropospheric propagation, and satellite communications, further enhancing performance in our world of (dynamic) obstructions, mitigating signal drops, reducing flutter, and increasing reliable range.

Reliable leaf spring style NMO connector on antenna for standard center-stud style NMO mounts

Gain:  Nominal 5(+) dB-MEG

  • [Due to properties listed above, performance is greater than predicted based on gain alone in NLOS (Non-Line-Of-Sight) environments which is the world we live in.]

Base Station Antenna

The SCAN-III may also be used as a high performance 100-1500 MHz compact base station Scanner Radio antenna by utilizing the COMPACtenna CompacCounterpoise, a heavy duty ground plane counterpoise radial kit optimized for gain, pattern and SWR on VHF and UHF frequencies.

Each Antenna is quality checked and tuned. Keep antenna and mount contacts clean. Fine grit emery cloth, for example, may remove oxidation. Thread lengths and center contact heights of different NMO mounts vary; make certain of good contact by antenna leaf spring - at times pulling the antenna leaf spring downward slightly is helpful before screwing antenna onto mount, especially if changing to another mount. Removing, re-attaching antenna repeatedly is not recommended; dedicated vehicle & base station systems are best. Use lube provided for NMO threads, center contacts and gasket, hand tighten securely. Brushless car washes, hand washing reduce risk of antenna/mounting damage. The antenna side screw is an added measure for secure physical integrity; it is to be left alone.

    Manufacturer's Website

SCAN-III Accessories and Related Items


VHF/UHF Base Station Kit for PL-259 terminated feedline 144-512MHz