I. Bộ nhân không dây Sennheiser EM 500 G4:
The EM 500 G4 Wireless True Diversity Receiver from Sennheiser is the latest addition to their evolution series of wireless receivers. It operates in the UHF frequency range and can be used with a companion transmitter and microphone (sold separately), as part of a wireless RF transmission system for live stage, theater, and presentation applications.
The half-rack receiver features 3250 frequencies and is tunable in 25 kHz steps. There are 20 fixed frequency banks with up to 32 compatible frequency presets and 6 user banks with up to 32 user programmable frequencies. This receiver is built with a menu-driven backlit OLED display showing current frequency, frequency bank and channel number, metering of RF level, volume level, line output level, lock status, battery status, muting function, and more.
Enclosed in a rugged metal housing, the EM 300-500 G4 receiver is equipped with a balanced XLR-3M audio output along with an unbalanced 1/4" audio output. A 1/4" headphone output with headphone volume control is provided along with an Ethernet port (RF45) for remote network-based monitoring and control, using Sennheiser's Wireless System Manager software. Two BNC-type sockets are for connecting the antennas. Finally, the half-rack receiver operates on the included 12V power supply and includes a GA3 rackmount set.
Đặc điểm nổi bật của Bộ nhận micro không dây Sennheiser EW 500 G4
- True diversity half-rack receiver in a full-metal housing with intuitive OLED display for full control
- Easy and flexible wireless synchronization between transmitter and receiver via infrared
- Up to 32 compatible channels
- Up to 88 MHz bandwidth with 3250 selectable frequencies, fully tunable in a stable UHF range
- Ethernet connection for Wireless Systems Manager (WSM) control software for advanced frequency coordination in multi-channel setups
- High RF output power (up to 50mW, adjustable in three steps 10/30/50) depending on country regulations
II. Thông số kĩ thuật của bộ nhận không dây Sennheiser EW 500 G4
| Frequency range |
AS: 520 - 558 MHz
K+: 925 - 937.5 MHz
JB: 806 - 810 MHz
GBw: 606 - 678 MHz
Gw: 558 - 626 MHz
Bw: 626 - 698 MHz
Cw: 718 - 790 MHz
Dw: 790 - 865 MHz
Aw+: 470 - 558 MHz
Gw1: 558 - 608 MHz |
| Dimensions |
Approx. 202 x 212 x 43 mm |
| Compander |
Sennheiser HDX |
| THD, total harmonic distortion |
≤ 0.9 % |
| Weight |
Approx. 980 g |
| Audio output |
6.3 mm jack socket (unbalanced): +12 dBu
XLR socket (balanced): +18 dBu |
| Signal-to-noise ratio |
≥ 115 dBA |
| Switching bandwidth |
up to 88 MHz |
| Peak deviation |
±48 kHz |
| Nominal deviation |
±24 kHz |
| Modulation |
Wideband FM |
| Power supply |
12 V DC |
| Antenna connector |
2 BNC sockets |
| Current consumption |
350 mA |
| Adjacent channel rejection |
Typically ≥ 75 dB |
| Intermodulation attenuation |
Typically ≥ 70 dB |
| Receiving frequency |
Max. 3520 receiving frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 32 factory-preset channels, no intermodulation, 6 frequency banks with up to 32 programmable channels |
| RF sensitivity |
< 2.5 μV for 52 dBA eff S/N |
| Squelch |
5 to 25 dBμV in steps of 2 dB |
| Equalizer |
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) |
| Temperature Range |
-10 °C to +55 °C |
| Receiver Principle |
True diversity |
| Blocking |
≥ 75 dB |
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