Freedom R8100 SERIES User Manual

119
Field
Mnemonic
Bits
Note
Network Identifier
NID
16
Network Access Code
NAC
12
Data Unit ID
DUID
4
See Table 2.2.7.3.1.3-3
Header Word
120
Message Indicator
MI
72
Encryption is not supported
Manufacturer’s ID
MFID
8
Not displayed
Algorithm ID
ALG
8
Encryption is not supported; 80 is
unencrypted
Key ID
KID
16
Encryption is not supported
Talk-group ID
TGID
16
Not displayed
Link Control
LC
72
Format varies
Format
LCF
8
Protected flag
P
1
Encryption is not supported
Standard Format
SF
1
Opcode
LCO
6
Content
56
Low Speed Data
LSD
32
Status Symbols (6)
SS
12
See Table 2.2.7.3.1.3-2
Table 2.2.7.3.1.3-1. P25 Voice Frame Fields
Note: Although encryption is not supported, Header Word fields and the Link Control Format (LCF) will
be displayed correctly because they are not subject to encryption. Therefore, if these fields indicate
encryption, other fields will not be displayed correctly. Fields that are subject to encryption include the
vocoder information and Link Control information content.
Value (binary)
Note
Transmitter
00
Unknown, use for talk-around
subscriber
01
Inbound Channel is Busy
base station/repeater
10
Unknown, use for inbound or outbound
subscriber
11
Inbound Channel is Idle
base station/repeater
Table 2.2.7.3.1.3-2. P25 Status Symbol Codes
Note: Status symbols are combined by concatenating their binary values but are displayed in hexadecimal.
For example, an idle channel that just became busy is displayed as D5 (11010101).

Freedom R8100 SERIES Specifications

General

Model	R8100 SERIES
Category	Measuring Instruments
RF Generator	Yes
RF Analyzer	Yes
Manufacturer	Freedom Communication Technologies
Measurement Functions	Frequency, Power, Modulation
Power Supply	100-240 VAC, 50-60 Hz