Atec Agilent-E4421B-24B-32B-33B-35B-36B - Manual (Page 12)

12
I/Q baseband generator
(continued)
Digital communications standards
NADC PDC PHS TETRA DECT GSM (DCS, PCS)
Error vector magnitude 1 (% rms)
Burst
Burst Burst Continuous Burst N/A N/A
N/A
N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A
30 25 300 25 1,728 200
3 (2, typ)
Burst Burst Burst 2
−35
−80
−82
−84
−34
−78
−81
−83
−74 −72
−81 −79
−80
−80 −78
−79
−69 4
−80
−81
−81
−64
−78
−80
−80
Burst
−37
−72
−82
−82
−37
−71
−80
−81
Custom,
up/down TCH Custom,
up/down TCH,
up Vox Custom,
TCH, sync Custom,
up control 1 & 2
up normal,
down normal,
down sync Custom,
dummy B 1 & 2,
traffic B,
low capacity Custom, normal,
FCorr, sync,
dummy, access
Yes Yes
Global phase error
1
(rms/pk)
Deviation accurac y 1 (kHz)
Channel spacing (kHz)
Supported burst types
Scramble capabilities
(Low ACP Mode, dBc, typical)
at adjacent channel 3
at 1st alternate channel 3
at 2nd alternate channel 3
at 3rd alternate channel 3
Adjacent channel power 1 (ACP )
Burst
0.6 °/2.2°
0.3 °/1.3° (typ)
_ _
_ _
_ _
_ _
0.7
0.4
1.0 1.4
1.1
1.4 0.9
0.6
0.8 1.3
0.9
1.0 0.9
0.6
0.9 0.9
0.7
0.9 0.8
0.5
0.9 1.7
1.3
1.5 Low EVM mode
Low EVM mode (typical)
Low ACP mode (typical)
Continuous Continuous Continuous
Continuous Continuous Continuous Continuous Continuous
1. Specifications apply for the symbol rates, root raised cosine filter, filter factors (a or BbT) and default scaling factor specified for each standard, and at power levels
≤+7 dBm (≤+10 dBm, Option UNB).
2. ACP for TETRA is measured over a 25 kHz bandwidth, with an 18 kHz root raised cosine filter applied at power levels ≤+4 dBm (≤+8 dBm, Option UNB).
3. 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, etc.
4. TETRA ACP performance is typically <-72 dBc with Option H99 in continuous modulation mode.