Midland ALAN 48 PLUS MULTI B Instruction Manual
Alan 48Plus Multi B
” I N
STRUCTION GU I DE
UK
1
INDEX
Introduction .................................................................................................................. Pag. 1
Function and location of the controls..................................................................Pag. 2
Installation ...................................................................................................................... Pag.4
Power supply ................................................................................................................. Pag.4
Installing an antenna .................................................................................................. Pag.4
How to operate with your transceiver .................................................................. Pag.5
Frequency band selection ......................................................................................... Pag.5
Frequency band chart ................................................................................................ Pag.5
Technical specifications ............................................................................................. Pag.6
Your ALAN 48 PLUS MULTI B represents the state-of-the art in high-tech
engineering. Designed for the Citizen Band Mobile operation, this compact
package is big in performance. It is a quality piece of electronic equipment,
skillfully constructed with the finest components. The circuitry is all a solid-
state, mounted on rugged printed circuit boards. It is designed for many
years of reliable, trouble-free performance.The night-light buttons allow the
night use.Your ALAN 48 PLUS MULTI B has a built Channel Phase-Locked
Loop synthesizer circuit.
The PLL circuit achieves a new technique for generating all the required
frequencies with fewer crystals. The result is much tighter frequency control
and superior reliability.
2
FUNCTION AND LOCATION OF THE CONTROLS
1. Channel selector
2. Microphone jack: Insert the mic connector into this jack.
3. Multifunction backlighted display.
A. Channel selected number
B. The received signal strength and the power of the transmitting
signal
C. AM/FM mode
D. RX/TX: TX=transmit mode; RX=receive mode
E. SCAN mode
F. EMG mode
G. M1-M2-M3-M4: preset memory channels
H. DW: Dual Watch activated
I. Frequency band selected.
J. LOW: displayed when the radio transmits in low power (this mode is
possible with some frequency bands only – see the frequency band
chart).
K. LOCK: microphone (UP/DOWN buttons) lock enabled.
4. “ON/OFF Volume” Control: in ‘’off’’ position your transceiver is OFF. Turn
this control clockwise to switch on the unit. Turn the knob clockwise a
little more to set the audio level, until you get a comfortable reception.
With ‘’PA-CB’’ selector set in ‘’PA’’ position, the knob controls the audio
output level.
5. “Squelch” Control: for the maximum receiver sensitivity, the control
must be regulated exactly where the receiver background noise disappears.
6. “RF” (Radio Frequency) Gain Control: it controls the reception sensitivi-
ty. To increase sensitivity, simply turn it clockwise. Sensitivity decreases
turning it counterclockwise. Low sensitivity is useful when very strong
signals are present in the band.
7. “Mic (Microphone) Gain Control”: in TX mode, it controls the micropho-
ne amplification. To get the best results, use the microphone and set the
optimum position for both the distance from your mouth and for the
amplification level, asking your partner when the modulation comes out
better.
8. “M1-M2-M3-M4” buttons: These buttons allow the storing and recalling
of 4 preselected channels. How to store: select the desired channel and
press M1 for at least 3 sec to store the choosen channel in the M1 memory. Repeat these steps to memorise the other presets.
9. EMG button: Emergency channel. By pressing it, the unit will be auto-
matically positioned on CH 9 (emergency channel). The display will show
“EMG”. It will not be possibile to accidentally change the channel.
ALAN 48 PLUS MULTI
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