HF Vertical Antenna for 10-80M that requires no radials. An external antenna tuner may be required if the antenna is not placed in a clear area. Otherwise, an internal antenna tuner can be used for best results.
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SPECIFICATIONS
- Ground plane HF Vertical Antenna
- Height: 28.5 feet overall heigh (Deployed vertical element is 27 feet long)
- Frequency Coverage: 3.5 – 57 MHz TX, 2.0 – 90 MHz RX
- SWR less than 1.6 on amateur radio bands from 3.5 MHz to 57 MHz*
- Peak Power: 250 PEP SSB, 125 CW, or 25 watts for digital modes. NOTE – The MIL-STD-188 M110a digital communications mode is rated at bursts of 100 watts digital for up to 1 minute using the MIL-STD Data Modem Terminal (MS-DMT) and Automated Message Terminal (AMT) software applications
- Heat dissipation for the transformer occurs through 4 bolts to the 4-foot x 5-inch x 1/4-inch piece of aluminum
- Wind rating without ice: 85 MPH
- Weight: 11-pounds
- Selectable Mast Sizes: 1.25″ or 2″ mast sizes are available
- No Ground radials required (*Proper RF grounding of equipment is necessary)
- No manual adjustments of the antenna are required for tuning
INCLUDED
- Heavy duty mount and hardware for a standard 1.25″ mast, which can be customized for industry standard 2″ masts.
- Self-supporting telescopic Vertical Antenna element that is 27′ long once deployed, which consists of five 6′ sections and 4 Stainless steel clamps.
- Jumper wire to attach Vertical element to the Alpha Match, and
- Alpha Match with SO239 adapter
Analysis
| Average HF Antenna SWRs. | |
| Band. | SWR |
| 10 Meters. | 1,7:1. |
| 12 Meters. | 1,8:1. |
| 15 Meters. | 1,3:1. |
| 17 Meters. | 1,4:1. |
| 20 Meters. | 1,9:1. |
| 30 Meters. | 1,8:1. |
| 40 Meters. | 1,5:1. |
| 60 Meters. | 1,8:1. |
| 80 Meters. | 1,9:1. |