Motorola Ap73 Portable Radios User Manual

							Memory Mode Operations
332-Year Warranty
NOTEThe radio remains in MHz mode after successfulprogramming of the channel.
CAUTIONIf the selected memory channel was already pro-
grammed (channel number lit continuously), the
new frequency information overwrites the previous
information.
Loading A Memory Channel
The data of a memory channel (receive and transmit
frequencies, TX offset type and offset frequency) can
be copied over into the MHz mode.
This allows you to tune the radio in the MHz mode
from the point speciÞed by the memory channel data.
In Memory mode:
Ê
Rotate theSelector Knob (2) to the desired mem-
ory channel number.
ËPress and holdToggle Light / Enter and Parame-
ter Transfer Button (4) for about 3 seconds.
NOTEAvalid keypresstone sounds when the memory
channel data has been successfully copied over to
the MHz mode. 
						

							Scan Operations
342-Year Warranty
Scan Operations
Scan operation tells the radio to monitor a number of
frequencies or channels. When there are some activi-
ties at a particular frequency or channel, the radio
stops scanning and changes to that frequency or
channel.
Scan modes supported by the radio are:
(i) Programmable Band scan (MHz mode)
(ii) Memory Channel scan (Memory mode)
NOTEEach frequency or channel is given the same prior-ity i.e.non-priority scan.
IMPORTANTThe radio will not recall the scan state if it is pow-ered off while scanning.
Programmable Band Scan
In the MHz mode, the radio scans over a prepro-
grammed range of frequencies usually speciÞed in
memory channels 19 and 20.
NOTEUser can specify the frequency range for scanning
by programming the frequency limit into memory
channel 19 (usually the lower limit) and memory
channel 20 (usually the upper limit) (see
ÒPro-gramming A Memory ChannelÓon page 32).
Scanning A Frequency Range
In MHz mode: 
						

							Scan Operations
352-Year Warranty
ÊPress  to begin scanning the preprogrammed
frequency range.
NOTEThe frequency range is scanned according to the
frequencies speciÞed in channels 19 and 20, and the
selected frequency step size. If the operating fre-
quency before scanning starts is within the scan
range, the radio starts scanning from that fre-
quency, otherwise, it starts from the frequency
speciÞed by memory channel 19 (or the lowest fre-
quency in the band if channel 19 is blank).
NOTEWhen the ÔSCANÕ indicator ßashes, scanning is in
progress and the currently scanned frequency is dis-
played.
To change the scan direction:
¥ Rotate the Selector Knob (2) anti-clockwise.
NOTEIf activity is detected, the radio stops scanning and
stays on the active frequency. The ÔSCANÕ indicator
remains on, and you will hear the conversation, pro-
vided the PL/DPL code (if required) is correct.
IMPORTANTRadio resumes scanning after approximate
5 seconds (even if activity is still received). If
received activity ceases, the radio resumes scan-
ning after another 7 seconds, unless receive activ-
ity resumes.
Ë
Press  to stop scanning.
N-DELDSCAN
N-DELDSCAN 
						

							Scan Operations
362-Year Warranty
NOTEPressingPush-To-Talk (PTT) Button (6), a digit on
the numeric keypad,  or  also ends the
scanning.
NOTEThe ÔSCANÕ indicator turns off when scanning is
terminated and the radio displays the frequency
where scanning stopped.
IMPORTANTIf both memory channels are left blank (unpro-
grammed), the radio scans the entire frequency
band. If channel 19 is programmed but channel 20
is blank, the upper frequency limit becomes the
highest frequency in the band. If channel 20 is pro-
grammed but channel 19 is blank, the lower fre-
quency limit becomes the lowest frequency in the
band. If the frequency stored in channel 19 is lower
than that stored in channel 20, then scan proceeds
in an incrementing order otherwise, scan proceeds
in a decrementing order.
Transmitting During Band Scanning
When the scan is locked at a frequency:
¥ Press Push-To-Talk (PTT) Button (6).
IMPORTANTAs soon asPush-To-Talk (PTT) Button (6) is
pressed, the radio exits band scanning and trans-
mits the TX frequency which corresponds to the
active RX frequency, plus or minus any selected TX
offset. If the
user-deÞned mode is selected (Ô+Õ and
ÔÐÕ indicators both on), the radio transmits theuser-deÞnedTX frequency. 
						

							Scan Operations
372-Year Warranty
Memory Channel Scan
In the Memory mode, the radio scans allprogrammedmemory channels that are also in the channel scan
list.
NOTEThe scan list is edited using the Special Program-
ming mode (seeÒSpecial Programming Mode(SPM)Óon page 46).
NOTEChannels may be temporarily removed from the
scan list using a Nuisance Channel Delete feature
(seeÒNuisance Channel DeleteÓon page 38).
Scanning Memory Channels
In Memory mode,
Ê
Press  to begin channel scanning.
NOTEWhen the ÔSCANÕ indicator ßashes, scanning is in
progress and theHome Channel (the active channel
before  was pressed) is displayed until activity is
received on another channel.
The channels are scanned in an increasing order
(from lowest to highest). To scan in a decreasing
order:
¥ Rotate the Selector Knob (2) anti-clockwise.
N-DELDSCAN
N-DELDSCAN 
						

							Scan Operations
382-Year Warranty
NOTEThe radio scans through all channels in the prepro-
grammed scan list. If activity is detected, the radio
stops scanning and stays on the active channel.
The ÔSCANÕ indicator remains on, and you will hear
the conversation, provided the PL/DPL code (if
required) is correct. In Carrier squelch and Coded
squelch modes, when activity is over and a 7-sec-
ond Òhang timeÓ has expired, the display reverts to
theHome Channel and scanning resumes.
To stop scanning:
¥ Press .
Transmitting During Channel Scanning
When the scan is locked at a channel:
¥ Press Push-To-Talk (PTT) Button (6) to talk,
release to listen.
IMPORTANTThe radio transmits on the current active TX fre-
quency. But, ifPush-To-Talk (PTT) Button (6) is
pressed before the scan is locked at any channel,
theHome Channel TX frequency is used.
Nuisance Channel Delete
When the radio is scanning, it would stop at any chan-
nel within the scan list that has activity. A channel that
generates unwanted signals continuously is called a
Nuisance Channel. To temporarily remove the chan-
nel from the scan list:
¥ Press and hold  for about 3 seconds while scan
locks on theNuisance Channel.
N-DELDSCAN
N-DELDSCAN 
						

							Scan Operations
392-Year Warranty
NOTETwo medium-pitched ÒbeepsÓ are sounded indicat-
ing the radio has temporary removed theNuisanceChannel from its scan list.
IMPORTANTTo add a deleted nuisance channel back into the
scan list, exit and reenter the scan function or
restart the radio. 
						

							DTMF Telephone Interconnect
402-Year Warranty
DTMF Telephone Interconnect
Dual Tone Multiple Frequency (DTMF) tones are
encoded by the radio to dial into (access) the landline
telephone network and return (deaccess) to conven-
tional radio operation.
Once the telephone network has been accessed,
phone numbers can be dialled either manually or from
memory. The keypad provides support for DTMF digits
0 to9, and the charactersA,B,C,D,* and#.
NOTEThe radio is capable of storing a maximum of 9 pre-programmed phone numbers (up to 12 digits each).
Placing a Telephone Call
To place a call:
Ê
Press and hold the Push-To-Talk (PTT) Button (6).
ËDial the access code manually using the DTMF
keys or press  then  to send the prepro-
grammed access code.
ÌRelease thePush-To-Talk (PTT) Button (6) and
wait for a dial tone.
ÍPress and hold the Push-To-Talk (PTT) Button (6)
and either manually dial the telephone number or
press  and the phone number location that
stores the preprogrammed telephone number.
ÎPress thePush-To-Talk (PTT) Button (6) to talk;
release to listen.
NOTEIf you press a phone number location which has not
been programmed, the radio will sound an Invalid
Button Press tone and no further action is taken.
MEM
MEM 
						

							DTMF Telephone Interconnect
412-Year Warranty
To hang up:
Ê
Press and hold the Push-To-Talk (PTT) Button (6).
ËManually dial the deaccess code or press
then  to send the preprogrammed deaccess
code.
Last Number Redial
Manually dialled phone numbers (up to 16 digits long)
are stored in numeric location Ô0Õ for quick redial capa-
bilities.They are sent exactly as preprogrammed tele-
phone numbers are. After you receive a dial tone:
¥ Press and holdPush-To-Talk (PTT) Button (6),
then press  and .
NOTELast Number Redial only stores manually dialled
numbers and NOT preprogrammed telephone num-
bers. The number set is stored in phone location 0
until the radio is turned off or until another DTMF
sequence is manually dialled.
NOTEIf you attempt to perform a last number redial where
no manual numbers have yet been dialled since
radio power-up, the radio will sound an
Invalid But-ton Press tone.
Storing a Phone Number
A maximum of 9 telephone numbers (up to 12 digits
each) can be stored into the radio memory. Each
phone number is stored and recalled via a unique
number on the keypad in the range of1 to9. The fol-
lowing procedure can also be used to store the access
/ deaccess codes (up to 8 digits each):
MEM
MEM 
						

							DTMF Telephone Interconnect
422-Year Warranty
ÊPress and hold  until you hear a second Valid
Button Press tone (takes about 2 seconds).
ËEnter a phone number location (in the range of1to
9) to store a phone number or press  to store
the access code or  to store the deacess code.
ÌEnter the phone number (up to 12 digits long), or
access / deaccess code (up to 8 digits long).
NOTEValid digits are DTMF digits0 to9, the charactersA,B,C,D,* and#, and pause digits.
NOTEPause digit ( )causes the radio to wait in
between transmission of the digits programmed
before and after it. One or more pause digits can be
entered between successive digits of the phone
number (or access / deaccess code). When a
pause digit is successfully entered, two beeps are
heard; the display changes from ÔAÕ to Ô-Õ. Pause
digits placed at the end of a phone number are not
remembered by the radio.
NOTEIf you make a mistake, press  to scroll the cur-
sor to the left and erase the incorrect entry. To view
a numeric sequence of more than 6 digits, press
 or  to scroll the cursor to the left or right.
MEM
(ßashing cursor)
MODE
OFSMEM