AVALON RF, INC.
Page 3 of 9
LC418/LC518/LC618 User’s Guide & Operating Manual
1.1
Video camera.
The LC618 has a built-in high-resolution high sensitivity black & white
video CCD camera.
1.2 Microphone.
The LC618 has a built-in sensitive electret microphone.
1.3 The LC618 lapel camera transmitter electronics.
The microphone audio output is amplified and modulated on a
6.2MHz subcarrier. This frequency may be factory preset to any
frequency between 4.8MHz and 7.5MHz.
The camera video output is buffered and combined with the
modulated audio subcarrier, then DC level restored, limited by a white
level clipping circuit, pre-emphasized and (VSB on LC418 series)
(FM on LC518/LC618 series) modulated onto the transmitter RF
carrier.
The LC618 antenna output is via a 50
Ω
(OHM) MMCX connector. RF
output power is 70mW at a SWR of 1.5:1.
2. Specifications
2.1 User
Interface.
The only user interface of the LC618 is an On/Off Switch. This switch
shuts off power to the entire transmitter.
2.2 Setup.
The LC618 lapel camera transmitters have the following setups:
a) Channel select switches (16 channels)
Units that have a manual synthesizer have a 4 position dip switch
that selects a channel number (from 1 to 16). The preset channel
numbers are defined by a label on the side wall of the transmitter.
b) Camera focus adjust.
