SHURE QLXD24A/B87-Q12 ไมโครโฟนไร้สายแบบไมค์เดียว คลื่นความถี่ 748-758 MHz

QLX-D Digital Wireless Specifications 

• RF Carrier Frequency Range : 174 – 216 MHz, 470 – 865 MHz, 1492 – 1525 MHz, 1785 – 1805 MHz,
• Image Rejection :>70 dB, typical
• Latency :<2.9 ms
• RF Sensitivity :-97 dBm at 10-5 BER
• Working Range :100 m line-of-sight
• Audio Frequency Range :20 Hz to 20 kHz
• Audio Dynamic Range :(System Gain @ +10) >120 dB, A-weighted, typical
• Total Harmonic Distortion :<0.1% (−12 dBFS input, System Gain @ +10)
• Operating Temperature Range :-18°C to 50°C

QLXD4 Receiver

• Dimensions :41 mm x 197 mm x 151 mm
• Weight :777 g, without antennas
• Housing :Steel
• Power Requirements : 12 V DC @ 0.4 A, supplied by external power supply (tip positive)
• Spurious Rejection :> 80 dB, typical
• Antenna Connector Type :BNC
• Antenna Impedance 50 Ω
• Gain Adjustment Range :-18 to +42 dB (in 1 dB steps)
• Configuration :¼” (6.35 mm): Impedance balanced (Tip = audio, Ring = no audio,Sleeve = ground ) XLR: balanced (1= ground, 2 = audio +, 3 = audio −)
• Antenna Impedance :¼” (6.35 mm): 100 Ω (50 Ω Unbalanced) XLR: 100 Ω
• Full Scale Output :¼” (6.35 mm): +12 dBV XLR: LINE setting = +18 dBV, MIC setting = -12 dBV
• Mic/Line Switch : 30 dB pad
• Network Interface :Single Port Ethernet 10/100 Mbps
• Network Addressing Capability :DHCP or Manual IP address

QLXD1 Bodypack Transmitter
QLXD2 Handheld Transmitter

• Dimensions
  QLXD1: 86 mm x 65 mm x 23 mm without antenna
  QLXD2: 256 mm x 51 mm L x Dia. Note: Final dimensions depend on cartridge.
• Weight
  QLXD1: 138 g, without batteries
  QLXD2: 347 g, without batteries Note: Final weight depends on cartridge.
• Housing
  QLXD1: Cast aluminum
  QLXD2: Machined aluminum
• Battery Type :Shure SB900A Rechargeable Li-Ion or AA batteries 1.5 V
• Battery Runtime :(@ 10 mW) Shure SB900A rechargeable: up to 10 hours
  alkaline: up to 9 hours
• RF Output Power :1 mW or 10 mW
• Occupied Bandwidth :< 200 kHz
• Modulation Type : Shure proprietary digital
• Mic Offset Range :0 to 21 dB (in 3 dB steps)