RF Carrier Range: 470–937.5MHz, varies by region (See Frequency Range and Ouput Power table)
Working Range: 100 m (328 ft)
Note: Actual range depends on RF signal absorption, reflection and interference.
RF Tuning Step Size: 25 kHz, varies by region
Image Rejection: >70 dB, typical
RF Sensitivity: −97 dBm at 10−5 BER
Latency: <2.9 ms
Audio Frequency Response
QLXD1: 20 Hz – 20 kHz (±1 dB)
QLXD2: Note: Dependent on microphone type
Audio Dynamic Range (System Gain @ +10): >120 dB, A-weighted, typical
Total Harmonic Distortion (−12 dBFS input, System Gain @ +10): <0.1%
System Audio Polarity: Positive pressure on microphone diaphragm produces positive voltage on pin 2 (with respect to pin 3 of XLR output) and the tip of the 6.35 mm (1/4-inch) output.
Operating Temperature Range: -18°C (0°F) to 50°C (122°F)
Note: Battery characteristics may limit this range.
Storage Temperature Range: -29°C (-20°F) to 74°C (165°F)
Note: Battery characteristics may limit this range.
24-Bit digital audio quality
Incredibly efficient RF spectrum usage
Quick syncing with a wireless receiver over IR at the push of a button
Clear, uninterrupted signal over the entire operating range
AES 256-bit encryption for secure transmission
Over 120 dB of dynamic range: no transmitter gain adjustment needed
1, 10 mW selectable RF output power
Optional Shure SB900 lithium ion rechargeable battery reports remaining runtime in hours and minutes
External charging contacts for docked charging
Backlit LCD with easy to navigate menu and controls
Selectable display mode showing group/channel, frequency, or battery runtime
Rugged metal construction
Frequency and power lockout
Rechargeable components? Yes
Battery Requirements 2 AA alkaline batteries or SB900 Lithium-Ion Rechargeable Battery
Battery Life Shure SB900: Up to 10 hours, Alkaline: Up to 9 hours
Typical Operating Distance 100 m (330 ft) line of sight