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Modulation Meter
- Carrier Frequency Range, 10 MHz to 1.3 GHz
- Comprehensive Selection of Post-Detection Filters
- Automatic Tuning and Leveling
Specifications
RF Input
- Carrier Frequency Range: 10MHz - 1.3GHz
- Tuning: Automatic, typical acquisition time 100ms at 100MHz
- Sensitivity: 10mV RMS, 10MHz - 520MHz. 30mV RMS, 520 MHz - 1.3GHz
- Level Set: Manual or automatic for levels up to 1V RMS. Automatic
acquisition time, 2s typical
- Maximum Safe Input: 7V RMS
- Input Impedance: 50 ohm nominal
Frequency Modulation
- Deviation Ranges: 10, 100, 300kHz full scale
- Modulation Frequency Range: 30Hz to 100kHz
Phase Modulation
- Carrier Frequency: 10MHz to 1.3GHz
- Rates: 300Hz to 10kHz; typically usable to 100kHz with degraded performance
Amplitude Modulation
- Modulation Depth Ranges: 10%, 100%, 300% fs (300% range reads to 100% with
reduced resolution)
- Modulation Frequency Range: 30Hz to 100kHz
Audio Frequency Response
- Filters
| High Pass |
Low Pass |
De-emphasis |
| < 10 Hz |
3 kHz |
50 µs |
| 30 Hz |
15 kHz |
75 µs |
| 300 Hz |
120 kHz |
750 µs |
| 3 kHz |
200 kHz |
6 dB/Oct
(ref. 1 kHz) |
- Audio Output Level: 1V RMS nominal into 600 ohm load at 1000 counts on DPM
IF Output
- Frequency: 1MHz nominal
- Level: 0.223V RMS nominal into 50 ohm load (0 dBm)
DC Output
1.00V DC from 1000W source at 1000 counts on DPM
Display
- Modulation: 4 digit LED display indicates true peak; 1000 counts + 100%
overrange; +peak, -peak, or peak average indication
- FM Resolution:
| Range |
Resolution |
| 300 kHz |
1 kHz |
| 100 kHz |
100 Hz |
| 10 kHz |
10 Hz |
- AM Resolution:
| Range |
Resolution |
| 300% |
1% |
| 100% |
0.1% |
| 10% |
0.01% |
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