Motorola Astro Digital Spectra Digital Spectra Plus Basic 6881076c20 E Manual

6881076C20-EFebruary 3, 2003
Encryption: Erase a Key7-3
7.2.2 Models W4, W5, W7, and W9
To load an encryption key into a Model W4, W5, W7, or W9 radio:
7.3 Erase a Key
This feature allows you to select any one, or all, of the encryption keys to erase.
7.3.1 Model W3
1. Turn on the radio and set the volume level.
The position of the 
D button is not important.
2. Connect the cable from the key-variable loader (KVL) to the 
microphone connector on the radio.
3. Load an encryption key into the radio’s...

February 3, 20036881076C20-E
7-4Encryption: Erase a Key
7.3.2 Models W4, W5, W7, and W9
The Select Key to Erase feature allows you to manually select any one, or all, of the encryption keys 
to erase.
1. To enter the Advanced 
Secure menu, press 
and hold the 
 button 
until a tone sounds.
2. Turn the Mode knob (W4) or press the Mode rocker switch 
(W5, W7, W9) to scroll to the 
ERASE KEY option.
3. Press the Sel button to enter the Key Erase menu.
The display changes to show the last key that was...

6881076C20-EFebruary 3, 2003
Encryption: Erase a Single Key (Model W3)7-5
7.4 Erase a Single Key (Model W3)
To erase a single key:
7.5 Erase All Keys
7.5.1 Model W3
To erase all keys at the same time:1. Press the 
 button 
below 
SNGL to request 
erasure of the 
selected key.
ERASE SNGL KEY, YES 
and 
NO are displayed.
2. Press the button 
below 
YES.
The internal selected 
key is set to zero.
ERASED is alternately 
displayed with the key 
name confirming the 
erasure.
3. To exit the menu without...

February 3, 20036881076C20-E
7-6Encryption: Over-the-Air Rekeying
7.5.2 Models W4, W5, W7, and W9
7.6 Over-the-Air Rekeying
The over-the-air rekeying (OTAR) feature allows the dispatcher to reprogram the encryption keys in 
the radio remotely.1. To enter the Advanced 
Secure menu, press 
and hold the 
 button 
until a tone sounds. 
2. Turn the Mode knob (W4) or press the Mode rocker switch 
(W5, W7, W9) to scroll to the 
ALL option.
3. Press the Sel button to erase all the keys in the radio.
The display...

6881076C20-EFebruary 3, 2003
Encryption: Over-the-Air Rekeying7-7
7.6.1 ASTRO Digital Spectra Model W3
1. Press 
 until REKY 
appears.
2. Press 
 below 
REKY.
REQUEST REKY is 
displayed.
3. Press the PTT button 
to send the rekey 
request.
PLEASE WAIT is 
displayed.
4. One of the following 
occurs:
The radio sounds five 
tones when the 
dispatcher has 
received the request.
NOTE:Any subsequent pressing of the PTT button will exit 
the feature and allow you to transmit in the normal 
manner. Pressing 
...

February 3, 20036881076C20-E
7-8Encryption: Over-the-Air Rekeying
If the display shows NO 
ACK
 and a bad-key 
tone sounds, then the 
dispatcher has not 
acknowledged your 
request after the radio 
has tried five times to 
send it.
The radio then returns 
to the display 
message in step 2, 
allowing you to retry 
the request.
If the request is 
accepted and the 
radio is successfully 
rekeyed, the display 
momentarily shows 
REKEYED.
If the display 
momentarily shows 
DENIED and a bad-key 
tone sounds,...

6881076C20-EFebruary 3, 2003
Encryption: Over-the-Air Rekeying7-9
7.6.2 ASTRO Digital Spectra Models W4, W5, W7, and W9
1. To enter the Advanced 
Secure menu, press 
and hold the 
 button 
until a tone sounds.
2. Do one of the following;
Model W4: Using the Mode knob, scroll to the 
REKY option.
OR
Models W5, W7, or W9: Using the Mode rocker switch, scroll 
to the 
REKY REQ option.
3. To enter the rekey request menu, press and release the 
SEL 
button.
4. To initiate a rekey request, press and release...

February 3, 20036881076C20-E
7-10Encryption: Advanced Secure Operation
7.7 Advanced Secure Operation
NOTE:The Advanced Secure feature is available only on radios that have been equipped by the 
factory to support it. The radio must also be equipped with an encryption module.
Advanced Secure incorporates the Multikey feature and a dual-encryption feature into the existing 
secure system. Multikey allows a radio to be equipped with multiple encryption keys. A default key is 
included and is associated with...

Chapter 8 Disassembly/Reassembly Procedures
8.1 Introduction
This section details the procedures necessary to remove and replace the printed circuit boards in the 
ASTRO Digital Spectra and Digital Spectra Plus radios. After troubleshooting and determining which 
board needs to be replaced, disconnect the test equipment, the antenna cable, and unhook the dc 
power.
Locate the exploded view drawing of the radio in 
Chapter 11: Exploded Views and Parts Lists. Keep 
it handy for reference when disassembling...

February 3, 20036881076C20-E
8-2Disassembly/Reassembly Procedures: Replacement Procedures
8.2.1 Required Tools and Supplies
8.2.2 Control Head Boards
8.2.2.1  Model W3
NOTE:Numbers shown in brackets in the following procedure refer to item numbers in Figure 11.1: 
“Model W3 Hand-Held Control Head Exploded View,” on page 11-2
, and in Table 11.1, “Model 
W3 Hand-Held Control Head Exploded View,” on page 11-2
.
1. Remove the strain-relief boot (part of cable assembly [15]) from the housing assembly [7] by...