Military Aircraft technicians use various Test Sets to check and certify proper operation of the aircrafts TACAN and IFF pulsed RF transmitters. To Avoid errant aircraft transmitter operation these Test Sets must be calibrated with high accuracy stable source of properly shaped RF pulses. The UBS' SCITTS Calibration Source provides military aircraft service technicians with such capabilities.
| Frequency Range |
960-1215 MHz (TACAN)
1025 to 1035 and 1085 to 1095 MHz (IFF) |
| RF Output Connectors |
Type “N” Female (high power port has interlock protection |
| High Power Port Duty Cycle |
0.002 maximum automatically enforced (limits some of the combinations of widths, repetition frequencies, and number of pulses per group that, individually, are within spec). |
Pulse Width (specified @ 50% voltage amplitude) |
Variable from 0.25 to 1.3 ± 0.025 m sec (IFF) ; 3.5 ± 0.5 m sec (TACAN) |
| Pulses per Group |
2 or 4 (IFF); 1 or 2 (TACAN) with variable spacing |
| IFF 2 Pulse: |
1.3 to 23 m sec ± 0.025 m sec in 0.05 m sec steps (subject to 0.6 m sec min in high power, 0.4 m sec min in low power between pulses) |
| IFF 4 Pulse:
(high power only) |
1.5 to 2.5 m sec ± 0.025 m sec in 0.05 m sec steps (subject to 0.6 m sec min between pulses) |
| TACAN: (high power only) |
8 to 50 m sec ± 0.1 m sec to 0.5 m sec steps |
| Frequency Control |
Selectable with 0.5 MHz resolution, accurate to ± 50 kHz |
| Pulse Group Repetition Rate |
Variable from 5 to 200 pps (TACAN); 25 to 1000 pps (IFF), 25 to 200 pps (IFF 4 pulse mode) |
| Synch Out |
A synch output pulse of +4 V into 50 ohms coincident with the start of each pulse group is provided for synchronizing external equipment. The pulse width is 1.5 m sec. A delay of up to 100 m sec between the synch out signal and the pulse group can be set in 0.1 m sec increments. Synch out pulse is present in both internal and external synch modes. |
| External Synch |
The 2760 normally operates in internal synch mode. However, operation from an external synch input is accommodated. The external synch requires a 3 to 30 volt pulse of 0.3 to 25 m sec in width. Duty cycle limiting in external synch mode is automatic. |
| Video Monitor |
A video monitor signal proportional to the RF level at the low power output is provided. The amplitude is 1 Vpp ± 15% for a low power output of +20 dBm. |