1240 / 1260 MHz
Part #: 20636
Electrical Data
Radiation at 1255 MHz:
| Effective electrical length: | 12.83 l | |
| Isotropic gain: | 20.0 dBi | |
| Aperture angle at -3 dB: | E plane: | 2 x 7.9 ° |
| H plane: | 2 x 8.1 ° | |
|
First
side lobe set:
|
E plane: | -17,5 dB @ 22 ° |
| H plane: | -16,5 dB @ 22 ° | |
| Rear protection: | -22,5 dB | |
| Stray radiation: | E plane : | -35 dB |
| H plane: | -30 dB | |
General data:
| Gain bandwidth, at -1 dB: | 1205 thru 1271 MHz |
| Nominal impedance: | 50 W |
| Match bandwidth at SWR < 1.3/1: | 1251 thru 1267 MHz |
| Maximum RF power (SSB, peak): | 300 W |
Two antenna stacking: recommended distance from center to center of
element at 1255
MHz, for optimal "gain - side lobe"
compromise.
| E plane | H plane |
| Electrical distance: 3.40 l | Electrical distance: 3.40 l |
| Physical
distance: 0.82
m (2' 8") |
Physical
distance: 0.82
m (2' 8") |
Physical
data
| Boom and support leg: | Alum. alloy 3005, sq pipe 16.5x16.5mm, 1mm th. | ||
| Element material: | Copper wire, enameled, Ø 3mm | ||
| Assembly hardware and accessories: | Galvanized and stainless steel | ||
| Connector: | N | ||
| Overall length: | 3.07 m (10' 1") | ||
| Mass: | 2.5 kg | ||
| Windload | Horizontal polarization |
Vertical polarization | |
| Effective wind area: | 0.13 m2 | 0.11 m2 | |
| Approximate
wind load: 25m/s (90km/h 55mph): 45m/s (160km/h 100mph): |
5.0 daN 16.1 daN |
4,2 daN 13.6 daN | |
