SR IEM G4
RF characteristics
| Modulation | Wideband FM stereo (MPX pilot tone) |
| Frequency ranges | A1: 470 – 516 MHz A: 516 – 558 MHz A30: 516 – 558 MHz AS: 520 – 558 MHz G: 566 – 608 MHz GB: 606 – 648 MHz B: 626 – 668 MHz B30: 626 – 668 MHz C: 734 – 776 MHz D: 780 – 822 MHz E: 823 – 865 MHz |
| Transmitting frequencies | Max. 1680 frequencies, adjustable in 25 kHz steps 20 frequency banks, each with up to 16 factory-preset channels, no intermodulation 6 frequency banks with up to 16 programmable channels |
| Switching bandwidth | up to 42 MHz |
| Nominal/peak deviation | ±24 kHz / ±48 kHz |
| MPX pilot tone (frequency/deviation) | 19 kHz/±5 kHz |
| Frequency stability | ±10 ppm |
| Antenna output | BNC socket, 50 Ω |
| RF output power at 50 Ω | switchable: Low: typ. 10 mW Standard: typ. 30 mW High: typ. 50 mW |
AF characteristics
| Compander system | Sennheiser HDX |
| AF frequency response | 25 Hz to 15 kHz |
| AF input BAL AF IN L (I) + MONO/ BAL AF IN R (II) | 2x XLR-3/¼” (6.3 mm) jack combo socket, electronically balanced |
| Max. input level | +22 dBu |
| Total harmonic distortion (THD) | <0.9 % |
| Signal-to-noise ratio (at nominal load and peak deviation) | >90 dB |
| AF output LOOP OUT BAL L (I)/ LOOP OUT BAL R (II) | ¼” (6.3 mm) stereo jack socket, balanced |
Overall device
| Temperature range | -10 °C to +55 °C |
| Power supply | 12 V DC |
| Current consumption | max. 350 mA |
| Dimensions | Approx. 202 x 212 x 43 mm |
| Weight | Approx. 980 g |
EK IEM G4
RF characteristics
| Modulation | Wideband FM |
| Frequency ranges | A1: 470 – 516 MHz A: 516 – 558 MHz AS: 520 – 558 MHz G: 566 – 608 MHz GB: 606 – 648 MHz B: 626 – 668 MHz C: 734 – 776 MHz C-TH: 748.2 – 757.8 MHz D: 780 – 822 MHz E: 823 – 865 MHz |
| Receiving frequencies | Max. 1680 frequencies, adjustable in 25 kHz steps 20 frequency banks, each with up to 16 factory-preset channels, no intermodulation 6 frequency banks with up to 16 programmable channels |
| Switching bandwidth | up to 42 MHz |
| Nominal/peak deviation | ±24 kHz / ±48 kHz |
| Receiver principle | Adaptive diversity |
| Sensitivity (with HDX, peak deviation) | < 4 μV, typ. 1.6 μV for 52 dBA rms S/N |
| Adjacent channel selection | Typically ≥ 65 dB |
| Intermodulation attenuation | Typically ≥ 70 dB |
| Blocking | ≥ 80 dB |
| Squelch | 5 to 25 dBµV, adjustable in steps of 2 dB |
| Pilot tone squelch | Can be switched off |
AF characteristics
| Compander system | Sennheiser HDX |
| Signal-to-noise ratio (1 mV, peak deviation) | approx. 90 dBA |
| Total harmonic distortion (THD) | ≤ 0.9 % |
| Output power at 2.4 V, 5 % THD, nominal deviation | 2 x 100 mW at 32 Ω |
| High Boost | +8 dB at 8 kHz |
| Limiter | –18 dB to –6 dB, adjustable in steps of 6 dB, can be switched off |
Overall device
| Temperature range | -10 °C to +55 °C |
| Power supply | 2 AA batteries, 1.5 V or BA 2015 accupack |
| Nominal voltage | 3 V battery / 2.4 V rechargeable battery |
| Current consumption | at nominal voltage: approx. 140 mA with transmitter switched off: ≤ 25 µA |
| Operating time | approx. 4 to 6 hours (depending on volume level) |
| Dimensions | Approx. 82 x 64 x 24 mm |
| Weight (incl. batteries) | approx. 125 g |
