EM300-500 G4

RF characteristics
Modulation Wideband FM
Frequency ranges Aw+: 470 – 558 MHz
AS: 520 – 558 MHz
Gw1: 558 – 608 MHz
Gw: 558 – 626 MHz
GBw: 606 – 678 MHz
Bw: 526 – 698 MHz
Cw: 718 – 790 MHz
Dw: 790 – 865 MHz
JB: 806 – 810 MHz
K+: 925 – 937.5 MHz
Receiving frequencies Max. 2880 receiving frequencies, adjustable in 25 kHz steps
20 frequency banks, each with up to 32 factory-pre-set channels, no intermodulation
6 frequency banks with up to 32 programmable channels
Switching bandwidth up to 72 MHz
Nominal/peak deviation ±24 kHz / ±48 kHz
Receiver principle True diversity
Sensitivity (with HDX, peak deviation) < 2.5 μV for 52 dBA eff S/N
Adjacent channel selection Typically ≥ 75 dB
Intermodulation attenuation Typically ≥ 70 dB
Blocking ≥ 75 dB
Squelch 5 to 25 dBμV in steps of 2 dB
Pilot tone squelch Can be switched off
Antenna inputs 2 BNC sockets

AF characteristics
Compander system Sennheiser HDX
EQ presets (switchable, act on line and monitor outputs)
Preset 1: Flat
Preset 2:
Low Cut (-3 dB at 180 Hz)
Preset 3:
Low Cut/High Boost
(-3 dB at 180 Hz,
+6 dB at 10 kHz)
Preset 4:
High Boost
(+6 dB at 10 kHz)
Signal-to-noise ratio (1 mV, peak deviation) ≥ 115 dBA
Total harmonic distortion (THD) ≤ 0.9 %
AF output voltage (at peak deviation, 1 kHz AF)
6.3 mm jack socket (unbalanced): +12 dBu
XLR socket (balanced): +18 dBu
Setting range “AF Out” 48 dB (3 dB steps)

Overall device
Temperature range -10 °C to +55 °C
Power supply 12 V DC
Current consumption 350 mA
Dimensions Approx. 202 x 212 x 43 mm
Weight Approx. 980 g

SKM 300 G4

RF characteristics
Modulation Wideband FM
Frequency ranges Aw+: 470 – 558 MHz
AS: 520 – 558 MHz
Gw1: 558 – 608 MHz
Gw: 558 – 626 MHz
GBw: 606 – 678 MHz
Bw: 526 – 698 MHz
Cw: 718 – 790 MHz
Dw: 790 – 865 MHz
JB: 806 – 810 MHz
K+: 925 – 937.5 MHz
 Max. 2880 frequencies, adjustable in 25 kHz steps
20 frequency banks, each with up to 32 factory-pre-set channels, no intermodulation
6 frequency banks with up to 32 programmable channels
Switching bandwidth up to 72 MHz
Nominal/peak deviation ±24 kHz / ±48 kHz
Frequency stability ≤ ±15 ppm
RF output power at 50 Ω switchable:
Low: typ. 10 mW
Standard: typ. 30 mW
High: typ. 50 mW
Pilot tone squelch Can be switched off

AF characteristics
Compander system Sennheiser HDX
AF frequency response 80 – 18,000 Hz
Signal-to-noise ratio (1 mV, peak deviation) ≥ 115 dBA
Total harmonic distortion (THD) ≤ 0.9 %
Setting range for input sensitivity 48 dB, adjustable in 6 dB steps

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: typ. 180 mA
with transmitter switched off: ≤ 25 μA
Operating time Typically 8 h
Dimensions Approx. Ø 50 x 265 mm
Weight (incl. batteries) approx. 450 g

SK 300 G4

RF characteristics
Modulation Wideband FM
Frequency ranges Aw+: 470 – 558 MHz
AS: 520 – 558 MHz
Gw1: 558 – 608 MHz
Gw: 558 – 626 MHz
GBw: 606 – 678 MHz
Bw: 526 – 698 MHz
Cw: 718 – 790 MHz
Dw: 790 – 865 MHz
JB: 806 – 810 MHz
K+: 925 – 937.5 MHz
Transmission frequencies Max. 2880 frequencies, adjustable in 25 kHz steps
20 frequency banks, each with up to 32 factory-pre- set channels, no intermodulation
6 frequency banks with up to 32 programmable channels
Switching bandwidth up to 72 MHz
Nominal/peak deviation ±24 kHz / ±48 kHz
Frequency stability ≤ ±15 ppm
RF output power at 50 Ω switchable:
Low: typ. 10 mW
Standard: typ. 30 mW
High: typ. 50 mW
Pilot tone squelch Can be switched off

AF characteristics
Compander system Sennheiser HDX
AF frequency response Mic: 80 – 18,000 Hz Line: 25 – 18,000 Hz
Signal-to-noise ratio (1 mV, peak deviation) ≥ 115 dBA
Total harmonic distortion (THD) ≤ 0.9 %
Max. microphone/line input voltage 3 Veff
Microphone/line input impedance 40 kΩ, unbalanced / 1 MΩ
Input capacitance Switchable
Setting range for input sensitivity 60 dB, adjustable in 3 dB steps

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: typ. 180 mA
with transmitter switched off: ≤ 25 μA
Operating time Typically 8 h
Dimensions Approx. 82 x 64 x 24 mm
Weight (incl. batteries) approx. 160 g

Brand

Sennheiser

Sennheiser

DM Music Ltd are a Sennheiser Professional Audio Premium Partner. We have been supplying Sennheiser equipment for many years and regard it as our leading microphone brand. If you require anything not seen below then call us on: 01582 761122

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