The low-frequency aperture provides omnidirectional coverage at the lower VHF bands with high gain performance by using an efficient matching network. The upper frequency aperture is comprised of stacked bicone elements located near the top of the assembly avoiding potential blockage by the vehicle. The bicone configuration provides superior pattern coverage from upper VHF through C band frequencies. The Q155 uses a proven assembly based on the Q71 JTIDS antenna, which has undergone full environmental testing, including the stringent “oak beam” impact tests. The design also incorporates a unique spring damper assembly that prevents the antenna from oscillating after an impact.
Q155 Series Antenna Specifications
Download the Q155 Antenna Spec Sheet| Port 1 | Port 2 | |
|---|---|---|
| Frequency range | Lower VHF | Upper VHF thru C band |
| VSWR | 3.5:1 | 2.5:1 |
| Gain | -12 dBi typical | -3 dBi typical |
| Pattern | ||
| Azimuth | Omnidirectional | Omnidirectional |
| Elevation | Figure eight | Figure eight |
| Power handling | 50 watts CW | 200 watts CW |
| Connector | BNC female /N female |
| Weight | 25 lbs |
| Options | 20 ft armored cables Bumper and fender mounting brackets, hardware |
| Finish | Epoxy CARC color green or desert sand |
| Operating temperature | -40° C to +65° C |
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