| Color |
Black with silver colored silk screen and silver colored faceplate Optional: white colored faceplate |
| Power Supply |
Desktop style international power supply w/IEC line cord,100-240 VAC input, 50-60Hz, 24W; 48VDC output |
| DC Power Input |
2.5 mm ID barrel connector, 48 VDC, 0.4A center positive |
| Power Indicator |
Green LED |
| Sleep/Power Save Mode |
Shuts off carrier when no audio is present for 3 minutes |
| Modulation |
FM Wideband, ±50kHz deviation max, 50 μS pre-emphasis |
| Carrier Frequencies |
TX-75: 2.3 MHz (Ch1) and 2.8 MHz (Ch2) TX75B - 3.3 MHz (Ch1) and 3.8 MHz (Ch2) |
| Emitter IR Power |
0.7 W |
| Master Only Coverage Area |
5,000 sq. ft in single-channel mode with the RX22-4 receiver (464 sq. m) |
| Master Only Coverage Area |
3,000 sq. ft in single-channel mode with the RX15-2 receiver (279 sq. m) |
| Master Only Coverage Area |
2,000 sq. ft in single-channel mode with the RX18 receiver (186 sq. m) |
| Audio Inputs / Controls |
Line inputs: RCA jack for Ch1 and Ch2 accept line level, balanced or unbalanced audio |
| Audio Inputs / Controls |
Line in balanced/unbalanced switch: selects balanced or unbalanced line level audio for RCA jacks |
| Microphone input |
3.5 mm, stereo jack with signal and bias connected to tip, electret microphone compatible |
| Microphone gain adjust |
Rotary potentiometer |
| Microphone channel switch |
Selects microphone input to Ch1 or Ch2 |
| Audio indicators |
Yellow LED blinks at nominal audio level. One per channel |
| Indicators On/Off |
2-position switch turns on/off indicator lights |
| Slave Status Indicators (on “to slave” jacks) |
Green: Power/Unit Status Yellow: Transmit/Cable Status |
| Signal-to-Noise Ratio |
70 dB, (line input) |
| Frequency Response |
95Hz to 17.6kHz, -3dB re 1kHz (line inputs) 125Hz to 17.0KHz, -3dB re 1kHz (microphone input) |
| Total Harmonic Distortion |
|
| Operating Requirements |
0-50° C (32°-122°F) |
| Mounting Kit |
Wall or Ceiling mount: BKT 024 Omnidirectional mount Optional: slave linking bar (MLB 003) |
| Dimensions (H x W x D) |
1.5" (38.1 mm) x 10.0” (254 mm) x 3.1" (79 mm) |
| Weight |
0.6 lbs (0.3kg) |
| Receiver Style |
Body-Pack, dual-lens detector, lanyard |
| Color and Material |
Black |
| Lanyard |
3 ft (.91 m), allows receiver to be worn around the neck |
| Operating Temperature |
-10° C to +50° C |
| Battery Type |
2 x AA, alkaline (BAT 001) or NiMH (BAT 026) |
| Battery Life |
Alkaline: 60 hours, NiMH: 30 hours/charge |
| Battery Drain |
25 mA, nominal |
| Charging Contacts |
For use only with CHG 3512 |
| Carrier Frequency |
Channel 1: 2.3 MHz, Channel 2: 2.8 MHz Channel 3: 3.3 MHz, Channel 4: 3.8 MHz |
| De-Emphasis |
50 uS |
| FM Deviation |
±50 kHz |
| Signal-to-Noise Ratio |
60dB min. |
| Squelch |
Receiver squelches (mutes) at 40 dB S/N ratio |
| Frequency Response |
25 Hz to 16 KHz, +1 dB, -3 dB, electrical response |
| Total Harmonic Distortion |
Less than 1%, electrical response |
| Controls |
ON/OFF/VOLUME: combination thumbwheel knobChannel Selector: four-position rotary switch |
| Indicators |
Red LED “ON” indicator, flashes to indicate Low battery |
| Audio Output Jacks |
3.5 mm stereo mini phone jack Accepts 3.5 mm mono or stereo phone plug |
| Audio Output Power |
15 mW max at 32 Ω |
| Acoustic Output |
125 dB SSPL90 with HED 021; 110 dB SSPL90 w/ EAR 013 |
| Sensitivity |
Better than 1 nW/cm2 for 40 dB signal-to-noise ratio |
| Dimensions (H x W x D) |
1.2” (30.4 mm) x 2.85" (72.4 mm) x 4.1" (104.1 mm) |
| Weight |
0.279 lbs (127 g) with batteries |
| Style |
Mono, folding headphone |
| Plug |
3.5 mm mono |
| Cord |
39” |
| Driver Size |
30 mm |
| Nominal Impedance |
32Ω |
| Frequency Response |
20 - 20kHz |
| Max Power Input |
100 mW |
| Sensitivity |
110 dB @ 1kHz |
| Weight |
0.114 lbs (0.052 kg) |
