your ID, in Code Memory 1. You can store up to six other Individual Codes of stations you
call often, in Code Memories 2 - 7. When someone else transmits your Individual Code your
display shows Code Memory "0" blinking in the memory box, with the other station's
Individual Code appearing in place of the operating frequency, so you can see who called.
Group Codes
This type of code identifies a group of stations. You would generally share a Group Code
with other club members or friends. When you receive a call with a Group Code the Code
Memory number (2 ~ 7) in which you stored that 3-digit Group Code appears blinking in the
memory box, with the corresponding 3-digit Code number (in which you stored that code) to
the right.
Note that for a Group Code, the display does not show the ID and code of the caller, but
those of the group instead. Code Memories 2-7 can be used to store either Individual Codes
(for calling purposes only) or Group Codes (for both calling and receiving), as you desire.
When either an individual page directed to you, or a call to a group is received, the PAGE
indicator starts blinking, and continues until you reset it (unless you have activated the auto-
transpond feature, described in the box on page 31). This is convenient to let you know if
someone called while your attention was elsewhere. Also, the ringer sounds once, or every
two minutes, according to how you have it set (page 26).
Remember, with code squelch operation (but not with paging), you can only receive a call on
the currently-selected Code Memory, and the display does not change, nor the ringer sound,
when a call is received. So for code squelch, as mentioned before, the Individual/Group dis-
tinction does not apply (although you must still store the 3-digit Code Memories).
Storing Code Memories
The first thing to do before using the paging or code squelch systems is to store your Individ-
ual Code in Code Memory 1.
O Activate the DTMF Code Memory display by pressing F/W —> PAGE CODE. The
current Code Memory number appears blinking in the memory box, and the frequency
display is replaced by the corresponding 3-digit DTMF Code ("000", if not used before).
O Turn the selector knob to select Code Memory 1 (the Code Memory digit can be set to 0 -
7, with 0 being "read-only", and 2-7 programmable with group or other individual's IDs).
Code Memory 1 is for your personal DTMF paging ID Code.
O Press either the MHZ PRI button or the UP button on the microphone. The Code
Memory num ber will stop blinking, and the first digit of the 3-digit DTMF Code will start
blinking.
O Turn the selector knob to select a DTMF Code digit between 0 and 9, corresponding to
the first digit of the personal ID code for your station (whatever you wish to use).
O Press MHZ PRI or the microphone UP button again to cause the next digit to the right to
blink, and again turn the selector knob to select the next digit of your ID code.
O Repeat the above step to set the last digit.
At this point, if you want to go back and change one of the three code digits, you can press
the OWN button on the microphone.
Your ID code is now stored in Code Memory 1. You can press PAGE CODE to return to the
frequency display now, or you can store other code memories in the same way: press MHZ
PRI or the microphone buttons again to get the Code Memory number in the memory box
blinking, turn the selector knob, and repeat the above steps. However, before storing more
Code Memories, you will need to consider an additional feature for Code Memories 2 ~ 7,
described next.
Generally, you store another station's ID Code so you can page them, but you probably do
not want to have your transceiver ringing every time someone else calls them. On the other
hand, you store group codes with the intention of receiving any pages to the group (so you
want your squelch to open and the transceiver to ring, if paging).
During the Code Memory storage procedure described above, when storing Code Memories
2 ~ 7, you have an opportunity to decide whether your transceiver should respond to in-
coming paging calls on a particular Memory Code. At any time when a Code Memory is
displayed, you can press the F/W button to toggle DTMF squelch paging capability on and
off. When on, that is, when the decoder is enabled to receive paging calls with this Code
Memory, an underbar appears beneath the memory box.
Therefore, if you are setting a Group Code, you want to have the underbar on, and if setting
another station's Individual Code, you want it off. As already mentioned, this distinction does
not apply to code squelch only (non-paging) operation: code squelch behavior is the same,
regardless of this setting.
Note that the underbar is displayed permanently on Code Memory 1, since this is your own
ID (that you will always want to receive when paging is activated). Also, the underbar never
appears on Code Memory 0, since this is reserved for display of the ID of incoming paging
calls.
Replying to a DTMF Page, and Resetting
After setting a Code Memory, even before returning to the frequency/memory display (by
pressing PAGE CODE), you can receive DTMF Paging calls directed to you. Any DTMF-
equipped station can call you by sending your 3-digit code, followed by their 3-digit ID
Code. If you monitor with the code squelch activated ("CODE" displayed), your squelch will
open when you receive the currently-selected DTMF Code - even if it is not your ID in Code
Memory 1. If you are monitoring with the DTMF Paging feature activated ("PAGE"
displayed, blinking after a call is received), the transceiver reacts according to how you
stored your Code Memories, as described above. The paging ringing tones can be set as
described in the box on page 26, to suit your preference. For paging, you can also have your
transceiver respond automatically when you are paged, as described in the box at right.
If you press your PTT switch after receiving a call, the Code (either Individual or Group) is
transmitted automatically, and if paging is enabled, your ID Code is sent as well.
To respond to an individual call, when your display shows Code Memory 0, pressing your
PIT switch causes your transceiver to transmit your ID Code and the other station's ID Code
automatically (that is, the one displayed in Code Memory 0), and resets the blinking indi-
cator. The other station will then hear a ring from their receiver, as their squelch opens.
You will probably want to switch from paging to code squelch mode once contact is estab-
lished, or your transceiver will continue to ring every time the other station transmits. To do
this, both stations must both have the same 3-digit code selected, so at least one of you will
have to change your Code Memory selection (recall that when a DTMF paging contact is es-
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