Overview
ATW-R900a receiver and ATW-T901a body-pack transmitter with omnidirectional lavalier microphone.
Specifications
| Overall System | |
|---|---|
| Operating Frequencies | VHF highband, 169 MHz to 172 MHz |
| Modulation Mode | FM |
| Maximum Deviation | +/-10 kHz |
| Frequency Response | 80 Hz to 13 kHz |
| Operating Range | 200' (60 m) typical Open range environment with no interfering signals |
| Total Harmonic Distortion | <1% (at 1 kHz, +/-10 kHz deviation) |
| Operating Temperature Range | 40° F (4° C) to 110° F (43° C) Battery performance may be reduced at very low temperatures |
| Notes | First-generation System 9 (original) components: ATW-R900 receiver ATW-T901 body-pack transmitter ATW-T902 unidirectional dynamic microphone transmitter Click here for the original System 9 Owner's Manual. |
| Handheld Transmitter | |
|---|---|
| RF Power Output | 10 mW |
| Spurious Emissions | Following federal and national regulations |
| Battery Type | Two 1.5V AA not included |
| Battery Life | 8 hours (alkaline) Depending on battery type and use pattern |
| Dimensions | 9.91" (251.8 mm) long, 2.11" (53.5 mm) diameter |
| Net Weight | 9.2 oz (260 grams) without batteries |
| Accessories Included | AT8456a Quiet-Flex™ stand clamp |
| Body Pack | |
|---|---|
| RF Power Output | 10 mW |
| Battery Life | 8 hours (alkaline) Depending on battery type and use pattern |
| Battery Type | Two 1.5V AA not included |
| Dimensions | 2.76" (70.2 mm) W x 4.08" (103.7 mm) H x 0.98" (24.9 mm) D |
| Input Connections | Four-pin Locking Connector Pin 1: GND Pin 2: INST INPUT Pin 3: MIC INPUT Pin 4: DC BIAS +9V |
| Net Weight | 2.8 oz (80.0 grams) without batteries |
| Spurious Emissions | Following federal and national regulations |
| Receiver | |
|---|---|
| Receiving System | Non-diversity, single-channel, dual antenna system |
| Image Rejection | 50 dB minimum |
| RF Sensitivity | 20 dBuV at 60 dB S/N ratio (50 ohms termination) |
| Power Supply | 100-240V AC (50/60 Hz) to 12V DC .5A (center positive) switched mode external power supply |
| Operating Temperature Range | 40° F (4° C) to 110° F (43° C) |
| Dimensions | 7.48" (190.0 mm) W x 1.82" (46.2 mm) H x 5.06" (128.5 mm) D |
| Weight | 12.0 oz (337 grams) |
| Accessories Included | Power supply |
| Audio Output | Nominal Output Level XLR, balanced: 350 mV (1 kHz modulation, 10 kHz deviation, 100k ohm load) 1/4" (6.3 mm), unbalanced: 700 mV (1 kHz modulation, 10 kHz deviation, 100k ohm load) |
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