7.
Care and Maintenance
•
All screws should be tightened and free of corrosion.
•
The housing, visible parts, mounting supports and the installation location (e.g.
ceiling, suspension, trussing) should not be deformed, modified or tampered with;
e.g. do not drill extra holes in mounting supports, do not change the location of the
connections...
•
The electric power supply cables must not show any damage. Have a qualified
technician maintain the device.
•
Disconnect the device from the mains prior to maintenance activities.
•
Wipe the device regularly with a moist, lint-free cloth. Do not use alcohol or
solvents.
•
Do not open the receiver. There are no user-serviceable parts.
•
Contact your dealer for spare parts if necessary.
•
Remove power and batteries when the device is not used for a long time.
8.
Technical Specifications
System
frequency range ............................................................ UHF 863.500 - 865.000 MHz
modulation mode ...................................................................................... FM (PLL)
nominal/peak deviation ............................................................................. ± 20 kHz
frequency stability .................................................................... automatic calibration
frequency response ................................................................. 40 Hz-15 kHz ± 3 dB
S/N ratio at 1 mV RF and peak deviation .................................................. max. 95 dB
THD at nominal deviation and 1 kHz ............................................................ < 0.5 %
temperature range ....................................................................... -10 °C to + 55 °C
Receiver
sensitivity (peak deviation) ........................................................................... 7 dBuV
AF output voltage at peak deviation and 1 kHz AF out
balanced ..................................................................................... +10 dB (XLR)
unbalanced............................................................................ +4 dB (1/4" jack)
F/N ratio .............................................................................................. max. 80 dB
P/N ratio .............................................................................................. max. 80 dB
Transmitter
RF output power .......................................................................................... 10 mW
RF squelch ............................................................................................ max. 50 dB
Power Supply
receiver ........................................................................ 12 V, 500 mA (adapter incl.)
transmitter ................................................................... 2 x 1.5 V AA batteries (incl.)
V. 04 – 25/06/2021
MICW81
7
©Velleman nv