Professional Broadcast Quality Throughout
The FMA300A is a high gain, FM Broadcast Band log periodic type directional antenna. The antenna is designed for either horizontal or vertical mounting. A special vertical mounting bracket is enclosed for vertical polarization. This special bracket avoids negative influences from the mounting mast to the radiation pattern.
Forward gain of the FMA300 from 88~108 MHz is 7-8 dBi, with VSWR of less than 1.5:1 across the entire band. No tuning is necessary.
Mechanically, the FMA300 uses a specially designed, high quality aluminum boom that works as a phasing line. In addition, the pattern distortions in the vertical and horizontal planes have been minimized, and adjustment to the element alignment is not necessary. With no tuning or element adjustments required, assembly of the FMA300 is very easy.
The boom to mast brackets are made of a lightweight yet very rugged magnesium alloy for a secure and reliable installation. Mechanical assembly required.
SPECIFICATIONS
| Frequency | 88-108 MHz |
| Number of Elements | 6 Elements |
| Polarization | Horizontal or Vertical
(Special vertical mounting bracket included) |
| Forward Gain | 7-8 dBi (5-6dBd) |
| Front to Back Ratio, Average | 15 dB |
| Half Power Point | E-Plane 60-70°
H-Plane 110-120° |
| Impedance | 50 Ohms |
| Input Connector | SO-239 (UHF Female) |
| VSWR | 1.5:1 or less |
| Power Rating | 250W FM, 500W PEP |
| Longest Boom Length | 45 Inch (l.15 m) |
| Longest Element Length | 71 lnch (1 .8 m) |
| Mast Size | 1-5/8-2 Inch (42-50 mm) |
| Weight | 7 lbs 7 ozs (3.5 kg) |
| Wind Survival Rating | 90 mph (4O m/sec.) |
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