GENERAL INFORMATION
1-15
Linearity:
Adjacent Channel Power (ACP), in ACP mode for continuous and discontinuous signals
at RF output levels ≤ 0 dBm, over the temperature range 23°C ± 5°C:
TETRA GSM 900 / 1800
/ 1900
GSM EDGE
(Enhanced Data
rate for GSM
Evolution)
802.11a
Wireless Lan
(Spectral Mask)
at RF o/p level
≤ − 4 dBm
IS-95 (CDMAone)
Frequency
range(s)
130 MHz–1 GHz 850 MHz–1 GHz
1700–1900 MHz
5.15–5.825 GHz 824–894 MHz
1850–2000 MHz
ACLR (continuous
and discontinuous)
< −70 dBc @
25 kHz offset
typ < −80 dBc @
50 kHz offset
typ < −80 dBc @
75 kHz offset
< −35 dBc @
200 kHz offset
< −70 dBc @
400 kHz offset
< −80 dBc @
600 kHz offset
< −25 dBr @
11 MHz offset
< −45 dBr @
20 MHz offset
typ < −60 dBr @
30 MHz offset
< −65 dBc @ 885 kHz
offset
< −75 dBc @ 1.25 MHz
offset
< −80 dBc @ 1.98 MHz
offset
3GPP/WCDMA NADC (IS-54,
IS-136)
JDC/PDC PHP/PHS
Frequency
range(s)
1855–2200 MHz 824–894 MHz
1850–2000 MHz
810–826 MHz
940–956 MHz
1429–1513 MHz
1895–1918 MHz
ACLR (continuous
and discontinuous)
< −70 dBc @ 5 MHz
offset
typ < −72 dBc @
5 MHz offset
< −40 dBc @
30 kHz offset
typ < −78 dBc @
60 kHz offset
typ < −80 dBc @
90 kHz offset
< −65 dBc @
50 kHz offset
typ < −80 dBc @
100 kHz offset
< −75 dBc @ 600 kHz
offset
< −80 dBc @ 900 kHz
offset
RF burst control
A digital control bit is used to generate an analog ramp (up or down) of the RF output.
The burst gate control signal can either be generated internally as part of the optional
internal baseband source, or provided externally by the user on the rear-panel connector.
When internally generated, the burst gate control signal appears on the rear-panel
auxiliary connector, which then serves as an output.
On/off ratio:
For the temperature range 23°C ± 5°C:
> 90 dB for carriers ≤ 3 GHz
> 80 dB for carriers ≤ 4 GHz
> 65 dB for carriers ≤ 6 GHz
Ramp profile:
Rise and fall time after the L to H and H to L transitions of the burst control bit
respectively can be defined by the user, from 10 µs to 999 µs in 0.1 µs steps.
RF ramp can be adjusted in time by ±50 µs in increments of 0.1 µs with respect to the
trigger event.
Burst gate control input:
TTL level (HCT), 50 Ω impedance BNC input on the rear panel.
RF burst attenuation control
A digital attenuation control bit (in conjunction with the ramp control bit) is used to
decrease the RF level from the set level to an alternative level during burst modulation.
The burst attenuation trigger signal can be provided internally as part of the optional dual
arbitrary waveform generator (ARB), or externally on a rear-panel connector. When
internally generated, the burst attenuation trigger control signal appears on the
rear-panel auxiliary connector, which then serves as an output.
RF burst attenuation requires electronic attenuator Option 003.
Attenuation range available:
0 to 70 dB
Burst attenuation control input:
TTL level (HCT), 50 Ω impedance signal on the rear panel AUX connector.
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