TH3JRS Tri-band HF 3 Elements Beam Covers 10, 15 and 20 Meters The antenna was designed for the Ham who has space limitations but still wants top performance on 10, 15 and 20 meters.
The TH3JR-S is constructed of taper-swaged aluminum tubing which offers low wind resistance. It can be rotated with a heavy-duty TV rotator. The light weight is ideal for rooftop or lightweight tower installations. The antenna features super strength stainless steel hardware and a boom-to-mast bracket that will fit masts up to 2 inches in diameter.
|Frequency|| : ||14/21/28 MHz|
|Number of Elements|| : ||3|
|Forward Gain|| : ||5,85 dBd|
|Front-To-Back Ratio|| : ||25 dB|
|Boom Length|| : ||3,66 m.|
|Longest Element|| : ||8,31 m.|
|Turning Radius|| : ||4,5 m.|
|Surface Area|| : ||0,31 m2|
|Accepts Mast|| : ||32 - 50 mm|
|Matching Sytem|| : ||Beta Match, BN-86 optional|
|Power Capability|| : ||600 W PEP, 300 W AM|
|Net Weight|| : ||9,53 kg|
Radiation Pattern: http://www.swschwedt.de/kunden/dm2ble/KW-HyGain/dok10-3.htm