Ailtech 7514 Precision Automatic Noise Figure Indicators
Features:
- Resolution: An expanded meter scale that enables resolution to a few hundredths of a dB
- Range: Selectable offsets provide full scale ranges 0, 3, 6, 12, and 18 dB preserving the high resolution for most noise figure measurements
- Dynamic Range: Will provide accurate measurements over an input signal level window of better than 65 dB
- Level Indicators: LED indicators provide a positive indication that the input signal level is within the instrument's dynamic range
- ENR Calibration: Permits the user to calibrate the instrument directly from the front panel for a noise generator ENR range of 14.0 to 16.5 dB
Specifications:
| Input Frequency |
21.4, 36, 45, 60, 70 and 160 MHz switch selectable |
| 30 MHz direct input/td> |
| 10 MHz to 1000 MHz with an external local oscillator (double side band conversion) |
| Sensitivity (nominal) |
-80 dBm @ 30 MHz |
| -72 dBm @ switch selected frequencies |
| -66 dBm with external LO |
| Input Level Range |
65 dB minimum |
| ENR Calibration Range |
14.0 dB to 16.5 dB |
| Noise Source Output |
Manual On: |
+28 ±0.1V @ 60 ma. nominal |
| Manual Off: |
< 0.5V |
| Auto: |
0 to +28V pulsed, nominal 40% duty cycle |
| Full Scale Meter Ranges |
0, 3, 6, 12 and 18 dB |
| Bandwidth (nominal) - MT7514B |
6 MHz at 30 MHz input |
| 3 MHz at all other frequencies |
| Recorder Output |
50 mV nominal at full scale meter deflection, 5 kohm balanced |