SPECIFICATIONS |
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OVERALL |
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Frequency Range: | VHF 169 |
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Working Range: | Up to 300 feet |
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Distortion: | Less than 1% (15kHz deviation) |
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Frequency Response: | 40Hz to 15kHz, 3dB |
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Dynamic Range: | Better than 100dB |
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S/N Ratio: | Better than 95dB |
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Operating Temperature: | 0°– 45°C (32°– 113°F) |
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Noise Reduction: | 2:1 logarithmic compressor/expander |
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Oscillator/Modulation: | Crystal Controlled/FM |
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| Transmitter | 31HT | 31LT | 31IT |
| 31XT | |
| Microphone Unit | Uni Dynamic | Omni Electret | N/A |
| N/A | |
| RF Output Power | 10mW (50mW max) | 30mW (50mW max) | 10mW (50mW max) | |||
| Input Impedance | 8K ohms | 2.2K ohms | 100K ohms |
| 47K ohms | |
| Audio Adj.Range | N/A |
| 30 dB |
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| Battery | AA (1.5V) | 9V (006P) |
| AA (1.5V) | ||
| Battery Life |
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| Size | 62X221mm |
| 86(H)X60(W)X21.5(D)mm | 86(H)X60(W)X21.5(D)mm |
| 33X120mm |
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| 2.44X8.7" |
| 3.4(H)X2.3(W)X0.84(D)" | 3.4(H)X2.3(W)X0.84(D)" |
| 1.3X4.7" |
| Weight | 213g (7.5oz) |
| 112g (4.0oz) | 152g (5.4oz) |
| 92g (3.2oz) |
Receiver (211R, 221R, 311DR and 311DRH) |
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Receiver type: | Super Heterodyne/Crystal Controlled |
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Image Rejection: | Better than 60dB |
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Reception Sensitivity: | Better than 15dBV |
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Reception Selectivity: | 60kHz |
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Audio Output Adj. Range: min. |
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Audio Output Impedance: | 2.2K ohms unbalanced (200R, 211R, 221R, 311DR, 311DRH) |
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| 4.4K ohms balanced (311DR, 311DRH) |
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Power Requirements: | 12V DC - 300mA |
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Size: | 215(W)x210.4(D)x44(H)mm – 8.4x8.4x1.7" (311DRH) |
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| 280(W)x120(D)x37(H)mm – 11x4.7x1.4" (311DR, 221R) |
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| 150(W)x120(D)x27(H)mm – 5.9x4.7x1" (211R) |
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| 141(W)x129.5(D)x24(H)mm – 5.55x5.1x0.95" (200R) |
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Weight: | 1.2kg (42.3oz) (311DRH) |
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| 830g (29.3oz) (311DR) |
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| 875g (30.8oz) (221R) |
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| 485g (17.1oz) (211R) |
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252g (8.9oz) (200R)
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