Nady Systems OCTAVO U-81 Owner's Manual - Specifications
SPECIFICATIONS
OVERALL SYSTEM PERFORMANCE
RF Carrier Frequencies ........................................................Selected factory installed frequencies
between 902-928MHz and 944-952MHz
Frequency stability ......................................................................... +/-0.005% (Crystal Controlled)
Audio Deviation ..............................................................FM +/-20kHz normal, +/-50kHz maximum
Frequency Response ......................................................................................... 20Hz-20kHz, -3dB
Dynamic Range...................................................................................................................... 120dB
Harmonic Distortion ........................................................................................... 0.5% THD, normal
Operating Range ...........................................................250 feet normal, 500+feet max line of sight
RECEIVER
Reception ...................................................................................................Mono antenna reception
Antennas ..................................................................................10” (25.4 cm) Dual adjustable angle
Mute Threshold .......................................................................................-95dBm (none-adjustable)
Image Rejection ..................................................................................................... -70dB, minimum
Balanced output ....................................................Audio outputs: +/-24mV fixed level (600 Ohms)
Unbalanced MIX output ........................................Audio output: 360mV variable level (Open load)
Connectors ........................................................... Balanced: XLR, Unbalanced: 1⁄4” TS, Antennas:
TNC connector. DC in: 2.1mm barrel type
Indicators .............................................................................................Power On, RF and AF LEDs
Controls ...........................................................................Power ON/OFF buttons, Volume Controls
Power Requirement ................................................................................................15VDC/1200mA
Dimensions ................14.25” x 12” x 1.75 [W / D / H] (36.20 cm x 30.50 cm x 4.45 cm) [W / D / H]
Weight ................................................................................................................... 7.20 lbs (3.37 Kg)
TRANSMITTERS
Models Available .................................................................UH-81 Handheld and UB-81 Bodypack
Input Connectors
UH-81 Handheld .......................................Integral Nady DM-50D neodymium dynamic cartridge
UB-81 Bodypack .................................................................................... 3.5mm locking mini-jack,
Controls
UH-81 .......................................................................................................Power ON/STDBY/OFF
UB-81 ................................................................... ON/STDBY/OFF, Input Level Control (LT/HM),
selectable inputs—internal HM/LT switches
RF Power ........................................................... 20mW normal (50mW Maximum allowed by FCC)
Harmonics and Spurs ........................................................................................................< -50 dB
Antennas ....................................................................................... UH-81/UB-81: Internal antennas
LED Indicators
UH-81/UB-81 .............................Single LED flashes once for “ON”, lights steady for ”LOW BAT”
Battery
UH-81 ..........................................................................................2xAA Alkaline or NiMH batteries
UB-81 ......................................................................................Single 9V Alkaline or NiMH battery
Battery Life ......................................................................................................8-10 Hours (Alkaline)
Dimensions
UH-81 .........................................................................................10.5”x 1.875” (26.7 cm x 4.8 cm)
UB-81 ...................................................................4.25” x 2.5”x 1.0” (10.8 cm x 6.4 cm x 2.5 cm)
Weight ...............................................................................................................................................
UH-81 ..............................................................................................7.5 oz (213 g) without battery
UB-81 ................................................................................................3.1 oz (88 g) without battery
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