Alan PRORADIO User manual

1
INDEXINDEX
IntroductionIntroduction..............................................................................................................................................22
Coverage............................................................................................... 2
Safetyprecautions.................................................................................. 2
Cleaning................................................................................................ 2
Controls and IndicatorsControls and Indicators ..............................................................................................................33
ON/OFF/VOLUME Control...................................................................... 3
Channel (selection) keys........................................................................ 3
Display.................................................................................................. 3
Call button [call].................................................................................... 3
Charger control LED.............................................................................. 3
Function button [menu]......................................................................... 4
PTT Button (PTT) ................................................................................... 4
Charger jack/external PTT (optional)..................................................... 4
Adjustable microphone ......................................................................... 4
Auto Power Save.................................................................................... 4
Battery level indicator............................................................................ 4
To go into operationTo go into operation ....................................................................................................................55
To turn the unit on................................................................................ 5
To adjust volume .................................................................................. 5
To transmit and receive......................................................................... 5
Manual transmit mode (PTT) ................................................................. 5
Voice controlled transmit mode (VOX)................................................... 5
VOX activation....................................................................................... 6
VOX sensitivity ..................................................................................... 6
Delay adjustment.................................................................................. 6
Additional functionsAdditional functions........................................................................................................................77
Roger Beep (end transmission tone) ...................................................... 7
Keypad tone.......................................................................................... 7
Reset..................................................................................................... 7
SCAN..................................................................................................... 8
BSCAN................................................................................................... 8
DUAL WATCH........................................................................................ 8
Technical SpecificationsTechnical Specifications..............................................................................................................99
Restriction to the useRestriction to the use ................................................................................................................ 1010
If something doesn’t work...If something doesn’t work... ............................................................................................ 1111

2
IntroductioIntroductionn
PRORADIO keeps the advantages
of an rough capsuled headset, to
ensure the safety of hearing in
noisy working environments,
combined with the functions of an
modern PMR-transceiver, that can
be used without licence in quiet all
european countries.
CovCoverage:erage:
The operating band (446 MHz)
allows clear communication,
virtually free from atmospheric
interferences and –despite the
low power –will allow you to
communicate up to a distance of 2
km. The maximum range is
obtained operating in a open
space.
If you find communication is not
possible, many times this can be
solved by moving a few meters to
a new location. Range is also
reduces while operating in a
vehicle or metal building.
Safetyprecautions:Safetyprecautions:
• Never expose the unit to
extreme temperatures or
dust.
• Avoid contact with water.
• Use the supplied original
charger only. The charger is
adjusted specially to the
batteries of the unit. Different
charger may destroy the
batteries irreversible.
• To prolong the life of your
battery, avoid charging it
longer than necessary.
Subsequently 12 hours will
provide a full charge. An
overload effectively reduces
their capacity.
Cleaning:Cleaning:
Hanger, headset
and microphone
may be cleaned
several times with a
damp cloth only.
Do not use alcohol or harshDo not use alcohol or harsh
chemicals!chemicals!

3
Controls and IndicatorsControls and Indicators
1.1. ON/OFF/VOLUME ControlON/OFF/VOLUME Control
With this control you can switch
on or switch off PRORADIO and
adjust the volume to a
comfortable level. Turn the knob
clockwise to switch on the unit,
counterclockwise to turn it off.
2. an2. and 3. Channel (selection)d 3. Channel (selection)
keys up/downkeys up/down
With these keys you can select one
of the 8 following channels.
ChannelsChannels FrequenciesFrequencies
(MHz)(MHz)
1446,00625
2446,01875
3446,03125
4446,04375
5446,05625
6446,06875
7446,08125
8446,09375
4.4. DisplayDisplay
The display shows following
functions:
AChannel indicator
BVOX activated
CDual Watch activated
DKey Pad beep activated
ETransmitter -/Receiver icon
FPower Save on
GRoger Beep
HMode of channel monitoring
JBatterie level icon
5. Call B5. Call Button [call]utton [call]
By pressing the CALL-button your
PRORADIO is sending an audio
signal to others using the same
frequency.
If you keep pressed this button
while switching on the unit, you
are aible to set VOX sensivity and
RX return time too.
6. Charger con6. Charger control LEDtrol LED
Indicates when the batteries are
fully charged.

4
7. Function button [menu]7. Function button [menu]
By pressing this button you can
activate the additional functions
DW, SCAN, BSCAN, Roger Beep
and Keypad tone.
If you want to cancel all the
settings, you can make a reset by
pressing this button while
switching on the PRORADIO.
8. PTT Button (PTT)8. PTT Button (PTT)
By pressing the PTT-Button,
PRORADIO switches from receive
mode into transmit mode. By
releasing PTT it returns into
receive mode. The display shows
the icon for transmit mode and
the icon for receive mode.
9. Charger jack and external PTT9. Charger jack and external PTT
(optional)(optional)
You can connect this jack to the
charger for charging the batteries
in the device. You can connect the
jack to an external PTT (optional),
too.
10. Adjustable hanger10. Adjustable hanger microphonemicrophone
PRORADIO is equipped with an
noise cancelling electret
microphone, that reduces
irritating background noise for
clear audibility. For optimal noice
cancelling the microphone must
be adjusted exactly. During
transmission keep your mouth
approx. 1,5 cm distance to the
microphone at the end of the
hanger.
Power Save:Power Save:
PRORADIO is supplied with an
automatic current economy
circuit. If the transceiver receives
no signals for longer than 5
seconds the “Power Save Function”
automatically will be activated.
Power save is reducing at
minimum the consumption
extending the Standby-Time. The
Display shows “SAVE”. When
PRORADIO is reduced to a
minimum consumption
nevertheless you can receive
signals without restriction.
Battery level indicator:Battery level indicator:
The battery icon will flash on
the LCD when the batteries are in
need of charging. In that case it’s
necessary to recharge the NiMH-
batteries.

5
To go into operationTo go into operation
Turn on the unit:Turn on the unit:
To turn on PRORADIO, slightly
rotate the ON/OFF/Volume control
clockwise until you hear a „clic“.
Four successive tones are
signalling that the transceiver is
turned on. The display starts an
autotest for approximately 1 sec.;
than it returns to channel 1.
To adjust volumeTo adjust volume
To adjust the volume, select with
the buttons <upup> and <downdown> a
channel with carrier and low
background noise. Rotate the
volume dial clockwise until you
reach a comfortabel listening
level.
To Trasmit and Receive:To Trasmit and Receive:
Select with the buttons <upup> and
<downdown> the desired channel.
Please recommend that
communication with other stations
is possible only when the units are
operating on the same frequency.
To confirm the receiving mode,
the display shows the RX icon .
Manual transmit mode (PTT):Manual transmit mode (PTT):
To transmit, press the PTT-button
(8) on PRORADIO or external PTT-
button (optional) connected to the
charger/PTT-socket (9).
PRORADIO is now ready to
transmit. The display shows the
transmit icon . At the same time
you hear your voice at the
loudspeaker. PRORADIO will be on
transmission until you release the
PTT-button again. After releasing
the PTT-button the unit will turn
back to RX mode.
Voice controlled transmit modeVoice controlled transmit mode
(VOX):(VOX):
The VOX-function permits the
hands-free use of PRORADIO. The
transmission can start as soon as
you speak close to the
microphone. For control the
display shows the transmit icon .
PRORADIO will be on transmission
until you speak to the
microphone. When you finsih
speaking, the unit turns back to
RX mode. The voice controlled
transmit mode works only until a
special background noice level.
In sites with extreme loud
background noice, it’s better to
use the manual transmit mode,
because over a special intense
noice level the unit activates the
TX mode.

6
VOX activation:VOX activation:
Keep pressed again the <menumenu>
button for more than 2 seconds.
The dispaly shows “VOX” to
confirm that voice controlled
transmit mode has been activated.
To deactivate voice controlled
transmit mode, keep pressed the
button <menumenu> for more than 2
seconds again.
VOXVOX--sensivity setting:sensivity setting:
1. Turn off the unit.
2. Keep the button <callcall>
pressed and restart the unit.
The display shows:
3. Press the buttons <upup> or
<downdown>, to select the
desired sensitivity level. L3
(lower sensitivity) is
recommended in very noisy
sites, L1 (higher sensitivity)
is recommended in quiet
sites. To confirm the
operation, turn the unit off.
Delay adjustment:Delay adjustment:
There will be a brief delay
between finish talking and
transmit mode. The automatical
delay time will be activated after
setting the desired return time
from transmit mode into receive
mode. This delay is adjustabel in 3
level and allows you to speak in
your own inflexion without the
reception mode starts.
1. To set the RX return time,
turn the unit off.
2. Keep pressed the <call>call>
button and restart the unit.
The Display shows:
3. Press one time the <menumenu>
button.
4. The display shows now:
5. With <upup> or <downdown> you
are aible to select the
desired delay level. “d1“
signs for the shortest return
time and „d3“ for the longest
return time.
6. To confirm the operation
turn off the unit.

7
Additional functions:Additional functions:
Roger Beep (end transmissionRoger Beep (end transmission
tone):tone):
When you finish transmission, a
beep signalling the end
transmission is heard by the other
partner station. The tones will be
sent automatically at the end of
transmission.
To activate this function, follow
these instructions:
1. Press the <menumenu> button
until the display shows “oFoF”
and the icon blinks.
2. If you desire end transmission
tone select with the <upup>
button “oNoN” .
3. To confirm the operation
press once again the button
<menumenu>. Now the icon
remains in the display without
flashing.
Key pad tone:Key pad tone:
By turning on PRORADIO and
pressing any key, the unit sends
out a beep.
1. To deactivate the beeps,
press <menumenu> until the
display shows “oNoN” and
”BEEPBEEP” blinks.
2. If you desire no tone select
with the <upup> button “oFoF” .
3. To confirm the operation
press once again the button
<menumenu>.
4. “BEEPBEEP” is not any more
shown in the display.
Reset:Reset:
PRORADIO can be set easily to
conditions of delivery. This is
recommended in case of
malfunctionings or if you want to
cancel all settings. To make a
reset keep pressed the button
<menumenu> by turning on the unit.
After that all settings are
cancelled.

8
SCAN and BSCAN:SCAN and BSCAN:
SCANSCAN monitors continuous busy
channels with carriers. When the
unit notifies a carrier, it stops
scanning about 5 seconds, than it
restart monitoring.
To activate SCANSCAN follow the
instructions:
1. Press the <menumenu> button
until in the display “SCAN”SCAN”
blinks.
2. Press <upup> or <downdown> to
start the SCAN function.
3. To interrupt the SCAN press
<ccallall> or the PTT-button.
BSCANBSCAN monitors the first free
channel (without carrier) for 5
seconds amongst the 8 available
channels. BSCAN always skipps
channels with carrier.
To activate BSCANBSCAN follow the
instructions:
1. Press the <menumenu> button
until in the display “BSCAN”BSCAN”
blinks.
2. Press <upup> or <downdown> to
start the BSCAN function.
3. To interrupt the BSCAN press
<callcall> or the PTT-button.
DUAL WATCH:DUAL WATCH:
This function allows to monitor 2
channels at your choice. To
activate DUAL WATCH follow the
instructions:
1. Turn on PRORADIO.
2. Select with the <upup> or
<downdown>buttons the first
channel you want to
monitor.
3. Press repeatly the <menumenu>
button until the display
shows "DW".
4. Select the second channel
you want to monitor by
means of <upup> or <downdown>
buttons.
After approximately 1 sec. the
second channel is fixed and the
DUAL WATCH function will start.
Now the dual watch between the
two prefixed channels starts and
stops when a carrier is heard on
one of the two channels. Dual
watch restarts when the carrier
disappears.
To stop dual watch function, press
the <callcall> button for a short time
or press the PTT-button.

9
Technical Specifications:Technical Specifications:
General:General:
N° of channels: 8
Channel spacing: 12,5 kHz
Channel 1: 446,00625 MHz
Channel 2: 446,01875 MHz
Channel 3: 446,03125 MHz
Channel 4: 446,04375 MHz
Channel 5: 446,05625 MHz
Channel 6: 446,06875 MHz
Channel 7: 446,08125 MHz
Channel 8: 446,09375 MHz
Battery: 3 x NiMH-battery, 1,2V Mignon
Consumption: RX: 33 mA
Save: 21 mA (intermedia)
TX: 270 mA
Operating time: more than 15 hours (20% TX-mode)
Charging time: 10-12 hours
Operating temperature: -40 °C to +55 °C
Frequency control: PLL synthesiser
Weight: 485 g
Receiver:Receiver:
Sensitivity: better than 0,35 µV for 12dB SINAD
Squelch: automatic
Audio output: 0,3 W (max)
Intermediate frequency: 1. IF: 21,7 MHz
2. IF: 0,450 MHz
Spurious rejection: within the european terms
Image rejection: within the european terms
Intermodulation: within the european terms
Transmitter:Transmitter:
Output Power: 500 mW ERP
Type of modulation: FM
Modulation capability: 2,5 kHz (max.)
Frequency tolerance: ±2,5 ppm

10
Restriction to the use:Restriction to the use:
Chart derived from ERC/DEC (98) 25Chart derived from ERC/DEC (98) 25--2626--2727
CountryCountry PMR446 introducedPMR446 introduced Deviations to ERC directive andDeviations to ERC directive and
comcommentsments
Austria YES Licence free
Belgium YES For inhabitants of Belgium licence
required, free for travellers up to 3
months
Denmark YES Licence free
Finland YES Licence free
France YES Ch 1 and Ch 2 not allowed to be used
Germany YES Licence free
Greece YES Licence free
Hungary YES Licence free
Iceland YES Licence free
Ireland YES Licence free
Italy NO Not established
Luxemburg YES Licence free
Netherlands YES Licence free
Norway NO Not established
Portugal YES Licence free
Spain YES Licence free
Sweden YES Licence free
Switzerland YES Licence free

11
If something doesn’t work...If something doesn’t work...
It’s impossible to connect the partner station.It’s impossible to connect the partner station.
Did you turn on the unit?
Did you adjust the right volume level?
Did you select the same channel like your partner station?
It’s impossible to turn off the unit.It’s impossible to turn off the unit.
Connect the PRORADIO to the charger. If now PRORADIO can be turned on, the
batteries are discharged. Turn off PRORADIO again and wait, until the
batteries are fully charged.
If it is impossible to turn on the unit, control if protection fuse lost
connection. You’ll find the fuse on the top of board inside of the left
earphone. For substitution use only fuses of same type and and capacity (1
Ampère).