EM 300-500 G4
Frequency Range
AS: 520 - 558 MHz

Aw+: 470 - 558 MHz

Bw: 626 - 698 MHz

Cw: 718 - 790MHz

Dw: 790 - 865 MHz

GBw: 606 - 678 MHz

Gw: 558 - 626 MHz

Gw1: 558 - 608 MHz

JB: 806 - 810 MHz

K+: 925 - 937,5 MHz

size
Approx. 202 x 212 x 43mm

Compandor
Sennheiser HDX

THD, total harmonic distortion
≤ 0.9 %

weight
about 980 grams

Audio output
6.3mm plug (unbalanced): +12 dBU

XLR jack (balanced): +18 dBU

SNR
≥ 115 dBA

Adjustable frequency range
up to 88 MHz

maximum frequency deviation
±48 kHz

Nominal deviation
±24 kHz

modulation
Broadband FM

power supply
12 V DC

Antenna Connector
2 BNC jacks

current consumption
350 mA

adjacent channel rejection
Usually ≥ 75dB

intermodulation inhibition
Usually ≥ 70dB

receiving frequency
Up to 3520 receiving frequencies, adjustable in steps of 25 kHz, 20 frequency banks, each with up to 32 factory preset channels, no intermodulation, 6 frequency banks, with up to 32 programmable channels aisle

RF sensitivity
< 2.5 μV for 52 dBA eff S/N

squelch
5 dBμV ~ 25 dBμV in 2 dB steps

Equalizer
Preset 1: Straight

Preset 2: Low Cut (-3 dB at 180 Hz)

Preset 3: Low Cut/High Frequency Boost (-3 dB at 180 Hz, +6 dB at 10 kHz)

Preset 4: High Frequency Boost (+6 dB at 10 kHz)

temperature range
-10 °C to +55 °C

receiver principle
pure automatic diversity

noise reduction
≥ 75dB

SKM 300 G4-S
size
approx. Ø 50 x 265 mm

Compandor
Sennheiser HDX

THD, total harmonic distortion
≤ 0.9 %

weight
(including battery) about 450 grams

SNR
≥ 115 dBA

RF output power
Switching: Low: 10 mW typical, Standard: 30 mW typical, High: 50 mW typical

Adjustable frequency range
up to 88 MHz

maximum frequency deviation
±48 kHz

Nominal deviation
±24 kHz

operating hours
usually 8 hours

modulation
Broadband FM

power supply
2 AA batteries, 1.5 V or BA 2015 accupack

current consumption
At rated voltage: typically 180 mA

Emitter off: ≤ 25 µA

powered by
3 V battery / 2.4 V rechargeable battery

transmission frequency
Up to 3520 frequencies, adjustable in 25 kHz steps, 20 frequency banks with up to 32 factory preset channels each, no intermodulation, 6 frequency banks with up to 32 programmable channels

audio frequency response
80 – 18,000Hz

temperature range
-10 °C to +55 °C

frequency stability
≤±15ppm