|
GS-2/3/4 |
|
Applications:
Glide slope antennas are used to provide vertical guidance to aircraft during approach and landing of an aircraft under instrument flight rules. Features: The glide slope antennas are designed to withstand 100 mph wind, ½-inch radial ice, temperature range of -50C to 70C, and 100% humidity. All elements of the GS-2 and GS-3 are equipped with de-icing heaters and thermostats. Characteristics: Glide slope antennas operate on a frequency of 328 to 336 MHz on a nominal impedance of 50 Ohms and power up to 50 watts. A null reference glide slope antenna system is fed by two transmitters, one on the carrier frequency and the other on sideband frequency. A capture effect glide slope antenna system is fed by an additional clearance transmitter. (Refer to FAA Handbook 6750.6 for more information on null reference and capture effect systems.) A null reference glide slope antenna system consists of two antenna arrays, an external RF network, and a 40-foot tower equipped with safety climbing rail and obstruction marking and lighting. A capture effect system is a null reference system plus an additional antenna array, 20 feet of tower and a clearance cancellation bridge. |
|
|
|
| 1500-0149-201 | Null reference glide slope antenna system |
| 1500-0149-202 | Capture effect glide slope antenna system |
| 1000-0579-201 OR -202 | Glide slope antenna |
| 1000-0578-203 | Mounting frame |
| 1000-0580-401 | Integral monitor network, null reference (FA 8977) |
| 1000-0580-402 | Integral monitor network, capture effect (FA 8978) |
| 1000-0563-201 | 40' tower kit |
| 1000-0563-202 | 60' tower kit |
| GS-2 | GS-3 | GS-4 | |
| Heaters | Yes | Yes | No |
| Thermostats | Yes | Yes | No |
| Snow Cover | Yes | No | No |
| Full Dipole Cover | No | Yes | Yes |
|
|
|
| Frequency | 328-336 MHz |
| Impedance | 50 Ohms unbalanced |
| VSWR | 1.5:1 |
| Connectors | Type "N" |