Motorola HT 1000 ユーザーズマニュアル

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Appendix A- 6
Enable Secure On Desired 
Channels
To actually use the secure option, Secure must be enabled on the 
channels for which it is desired. A channel can be strapped to secure-
only, or clear-only, or secure/clear-selectable.
For conventional channels, proceed as follows: Press F4 at the Main 
Menu to see the CHANGE/CREATE/VIEW menu. Press F6 to see 
Conventional Systems, Personalities, MDC, Options. Press F3 to see 
Conventional Personalities, Options. Press F6 to see the SECURE 
OPTIONS screen. Press Tab to select the Secure/Clear Strapping field.
For trunking channels, proceed as follows: Press F4 at the Main Menu 
to see the CHANGE/CREATE/VIEW menu. Press F4 to see Trunking 
Systems, Personalities, Call Lists, Options screen. Press F4 to see 
Trunking Personalities: Talk Groups, Emergency Options, etc. Press Tab 
to select the Strapping field. An Announcement Group must be 
specified for the Strapping parameter to appear. This selects the 
Announcement Group Strapping. Press F7 to select Talk Groups. Press 
Tab to select the strapping of each Talk Group.
Other Secure Options
There are other secure options that can be changed on a per-channel 
basis, such as: Proper Code Detection, Transmit XL, or CFB. For 
conventional channels, these options are found on the same screen as 
Secure/Clear Strapping (F4/F6/F3/F6). These options are XL Transmit, 
Scan Holdoff Strapping, RX Modulation, and Proper Code Detect. For 
trunking channels, the only selectable option is Proper Code Detect. 
This can be found by going to the MORE OPTIONS screen (F9) from 
the screen that was used to select secure/clear Strapping for trunking 
channels.
Secure Retrofit Tuning
After installing a secure-retrofit board into a radio, the secure TX 
deviation and the secure RX discriminator level must be tuned. Follow 
the procedure outlined in Section 9 “Secure Alignment Procedure” 
in this publication for the tuning of these two secure-related 
alignments.
The TX deviation balance (compensation) does not need to be 
performed as part of the secure retrofit procedure. Use the transmit 
deviation balance (compensation) procedure as outlined in this 
appendix, only when a complete radio alignment is being performed 
with a secure board installed.
Secure Alignment 
Procedure
General
For optimum radio performance, the secure transmit deviation and 
the receive discriminator level must be set. Refer to Section 5, “Radio 
Alignment Procedure”
, for a description of the radio alignment test 
setup, an RSS service menu overview, and for general radio tuning 
procedures. All normal radio tuning should be performed in the 
proper sequence before proceeding with secure tuning.
Note that the transmit deviation balance (compensation) tuning must 
be performed differently if a secure board is installed in the radio. 
Follow the procedure changes outlined below when tuning transmit 
deviation balance, and complete the normal tuning. Then proceed