8
６．
How to Use
As a stereophonic transmitter
Connect the output of the sound source (LINE OUT) to the terminals Analog input Left (white)
and Analog Input Right (red), using audio cables. Output impedance of the LINE OUT should be
less than 1K
Ω
.
When the sound source and the transmitter are distant (5m or more), you may obtain noise
reduction by using a balanced cable (XLR connector) for connection. (Balance to unbalance
conversion will be required since this transmitter adopts unbalanced input.)
As a monaural transmitter
When stereophonic sound sources are connected by audio cables to Analog input Left (white) and
Analog input Right (red), left and right audio sound sources are mixed and will be transmitted as a
monaural broadcast. If you connect sound source A to Analog input Left (white) and source B to
Analog input Right (red), two channel-mixer output will be transmitted as monaural broadcast
Transmit the composite input
For transmission of the composite input (yellow), the transmitter’s audio characteristics are
determined by the signal characteristics of the connected composite input since VCO will be
directly modulated to FM (bypass those of input filter, pre-emphasis circuit, stereo multiplexer
circuit and multiplexer filter). Flatness of modulation characteristics of VCO is less than ±0.5dB
in the range of 30Hz
〜
100KHz. (High frequency characteristics left unchanged.)
７．
Battery Life
Refer to the table below for duration of battery under continuous transmitter use (approx.).
Batteries Output
voltage
Available life for
continuous duty
Connecting Cable
Size D alkaline batteries
(8, connected in series)
12V
25h, approx.
PCAB-02
Size C alkaline batteries
(8, connected in series)
12V
10h, approx.
PCAB-02
Sealed lead-acid battery
(12V, type 7.2AH)
12V
40h, approx.
PCAB-02
Car battery
13.8V
Long
PCAB-01
