SPECIFICATIONS
oveRAll system sPeCIFICAtIons
Frequency Response .............................................................................................30Hz-18kHz, -3dB
Dynamic Range .........................................................................................................................120dB
Harmonic Distortion ............................................................................................. <0.5% THD, normal
RF Carrier Frequencies ...............................................................Factory installed channels between
902-928MHz and 944-952MHz
Frequency stability ................................................................................+/-0.005% Crystal Controlled
Modulation ......................................................................... FM +/-20kHz normal, +/-50kHz maximum
TSQ Frequency ..................................................................................................................32.768kHz
Operating Range .............................................................250 feet normal, 500+feet max line of sight
ReCeIveR sPeCIFICAtIons
Controls ....................................................................Power ON/OFF buttons, Volume/Mute Controls
Audio Output Level ....................................................Unbalanced Sum output: 360mV variable level
Balanced outputs; +/-24mV fixed level
Connectors ...................................... Balanced: XLR. Unbalanced: 1⁄4” TS DC in: 2.1mm barrel type
Indicators ................................................................................................ Power On, TX and AF LEDs
Mute Threshold ..................................................................................-65dBm to -95dBm (adjustable)
Image Rejection..........................................................................................................70dB, minimum
Power Requirement ...................................................................................................... 16.5VDC/0.4A
Antennas ............................................................................. 4.0” (10.2 cm) Dual telescopic antennas
Dimensions ..................... 17” x 6.25” x 1.75 [W / D / H] (43.18 cm x 15.88 cm x 4.45 cm) [W / D / H]
Weight .....................................................................................................................4.10 lbs (1.86 Kg)
tRAnsmItteR sPeCIFICAtIons
Models Available .................................................... UH-4 Handheld and UB-4 Bodypack transmitters
RF Output Power ................. +14dBm (25mW normal), +17dBm (50mW maximum allowed by FCC)
Harmonic/spurious........................................................................................................-50dBc normal
Antenna Type .....................................................
UH-4:
Integral.
UB-4:
External permanent attached
Controls ................................... Transmitter ON/Mute/OFF switch, Audio Input level control (LT/HM),
Audio Input Levels ............................
UH-4:
24mV,
UB-4:
225mV (Instr.), 310mV (HM), 75mV (Lav.)
Input Impedance ...................................................
UH-4:
3.3kΩ,
UB-4:
500kΩ (Instr.), 2kΩ (HM/Lav.)
Connector ..................................................................................................
UB-4:
3.5mm locking jack
Indicator ................................................................................................Power and Low Battery LEDs
Battery Type ................................................................................ 9V alkaline or rechargeable battery
Battery Life ............................................................................................................ 8-10 Hours normal
Dimensions ..............................................................
UH-4:
9.5” x 2.0” [L / Dia.] (24.13 cm x 5.08 cm)
UB-4:
2.5” x 4.25” x 1.0 [W / D / H] (6.35 cm x 10.80 cm x 2.45 cm)
Weight (w/o batteries) ........................................................
UH-4:
6.6 oz (187 g),
UB-4:
3.1 oz (88 g)
13
Four UhF frequencies
Channel 14: 906.000MHz
Channel 16: 911.700MHz
Channel 10: 944.200MHz
Channel 12: 947.300MHz
FREQUENCY PLAN
Specifications and design subject to change for im prove ment purposes without prior notice.