Atec Agilent-E4433A-1E5 User Manual
Page 4
11
The "channel spacing" determines the offset size of the adjacent and alternate
channels: 1st Alternate Channel = 2 x channel spacing, 3rd Alternate Channel =
4 x channel spacing.
PHS (Option UN3 or UN4)
Modulation Format: pi/4 DQPSK
Data Rate (default): 384 kbits/sec
Adjustment Range: 320 to 605 kbits/sec
Filter:
Root-Raised Cosine or Raised Cosine
Default Value:
alpha = 0.5
Range (alpha ): 0.3, 0.35, 0.4, 0.5, 0.6
Error Vector Magnitude (% rms)
12
[see table 5]
Channel Spacing: 300 kHz
Adjacent Channel Power
12
(ACP)
(Low ACP Mode, dBc, typical)
[see table 6]
Supported Burst Types: Custom, TCH, Sync
Scramble Capabilities: yes
12
Specifications apply for the frequency range, data rates and filter factors
(alpha) specified at power levels >=+7 dBm.
13
The "channel spacing" determines the offset size of the adjacent and alternate
channels: 1st Alternate Channel = 2 x channel spacing, 2nd Alternate Channel =
3 x channel spacing.
TETRA (Option UN3 or UN4)
Modulation Format: pi/4 DQPSK
Data Rate (default): 36 kbits/sec
Adjustment Range: 31 to 37.8 kbits/sec
Filter:
Root-Raised Cosine or Raised Cosine
Default Value: alpha = 0.35
Range (alpha): 0.3, 0.35, 0.4, 0.5, 0.6
Error Vector Magnitude: (% rms)
14
[see table 7]
Channel Spacing: 25 kHz
Adjacent Channel Power
14
(ACP)
(Low ACP Mode, dBc, typical)
[see table 8]
Supported Burst Types: Custom, Up Control 1 & 2, Up Normal,
Down Normal, Down Sync
Scramble Capabilities: Yes
14
Specifications apply for the frequency range, data rates and filter factors
(alpha) specified at power levels >=+4 dBm.
15
The "channel spacing" determines the offset size of the adjacent and alternate
channels: Adjacent Channel Offset = 1 x channel spacing, 1st Alternate Channel =
2 x channel spacing, 2nd Alternate Channel = 3 x channel spacing, 3rd Alternate
Channel = 4 x channel spacing.
16
ACP for TETRA is measured over a 25 kHz bandwidth, with an 18 kHz root-raised
cosine filter applied.