E1987A Datasheet, PDF (17/27 Pages) Keysight Technologies – cdma2000/IS-95/AMPS

17 | Keysight | E1962B cdma2000/IS-95/AMPS Mobile Test Application - Technical Overview
CDMA RF generator
Channels
Additive white gaussian Yes
noise source
AWGN bandwidth
Typically 1.8 MHz < BW < 2.1 MHz
CDMA channels
CDMA code channels (PREV ≤ 6):
F-Pilot: Fixed at Walsh code 0
F-Sync: Fixed at Walsh code 32
F-Paging: Fixed at Walsh code 1
F-QPCH (IS-2000 only): Fixed at Walsh code 80
F-FCH: Selectable Walsh code from the follow-
ing set: 10, 14, 26, 30, 42, 46, 58, or 62
F-SCH (IS-2000 only): Fixed to Walsh code 3
F-OCNS: Selectable Walsh code from the fol-
lowing set: 5, 13, 21, 29, 37, 45, 53, and 61
CDMA PN offset
Selectable from 0 to 511
Frequency
Frequency range
–– US cellular band (860.04-893.97 MHz, channels 1-799,
–– 991-1023, 1024-1323, 1324-1424)
–– Japan CDMA band (approx. 832-869.9875 MHz, channels 1-799,
801-1039, 1041-1199, 1201-1600)
–– US PCS band (1930-1990 MHz, channels 1-1199)
–– Korean PCS band (1840-1870 MHz, channels 0-599)
–– NMT-450 band (420-494 MHz, channels 1-300, 539-871,
–– 1039-1473, 1792-2016)
–– IMT-2000 band (2110-2169.950 MHz, channels 0-1199)
–– Secondary 800 MHz band (approx. 851-869 MHz, and 935-940 MHz,
channels 0-719, 720-919)
–– US PCS 1.9 GHz band (1930-1994.950 MHz, channels 0-1299)
–– AWS band (2110-2154.950 MHz, channels 0-899)
–– Cellular upper 700 band (776-788 MHz, channels 0-240)
–– 400 MHz European PAMR band (420-494MHz, channels 1-2016)
–– 800 MHz PAMR band (915-921MHz, channels 0-239)
–– 700 MHz public safety band (757-769MHz, channels 0-240)
–– Lower 700 MHz band (728-746MHz, channels 0-360)
Frequency setting
By channel number or MHz (IS-2000 test mode
only)
Frequency setting
resolution
Typically 1 Hz
Amplitude
Output port control
User control of RF source routing to either the
RF IN/OUT port or the RF OUT ONLY port
RF IN/OUT composite Sum of the user-set values of the CDMA cell
signal level
power and the AWGN source power
RF IN/OUT CDMA cell
output level range
(AWGN off)
−120 dBm/1.23 MHz to −13 dBm/1.23 MHz
RF IN/OUT AWGN
output level range
−120 dBm/1.23 MHz to −20 dBm/1.23 MHz,
over-range available with reduced performance
to −15 dBm/1.23 MHz
RF IN/OUT CDMA cell
absolute output level
accuracy (AWGN off)
RF generator level accuracy is derived from
99th percentile observations with 95 percent
confidence (corresponds to an expanded un-
certainty with a 95 percent confidence (k = 2))
at ambient conditions, then qualified to include
the environmental effects of temperature and
humidity.
< ± 1.1 dB, −109 to −15 dBm/1.23 MHz
Typically ±0.62 dB, −109 to −15 dBm/1.23 MHz
RF IN/OUT composite
absolute output level
accuracy (AWGN on)
< ± 1.2 dB, −109 to −20 dBm/1.23 MHz
Typically ± 0.7 dB, −109 to −20 dBm/1.23 MHz
Amplitude (continued)
RF IN/OUT reverse
power
+37 dBm peak (5 W peak)
RF IN/OUT VSWR
< 1.14:1, 400 to 1000 MHz
< 1.2:1, 1700 to 2000 MHz
< 1.32:1, 2010 to 2180 MHz
RF OUT ONLY composite Sum of the user-set values of the CDMA cell
signal level
power and the AWGN source power
RF OUT ONLY CDMA
cell output level range
(AWGN off)
−115 dBm/1.23 MHz to –5 dBm/1.23 MHz
RF OUT ONLY AWGN
output level range
−115 dBm/1.23 MHz to −12 dBm/1.23 MHz,
over-range available with reduced performance
to −7 dBm/1.23 MHz
RF OUT ONLY CDMA cell < ± 1.1 dB, −109 to −7 dBm/1.23 MHz,
absolute output level
accuracy (AWGN off)
Typically < ± 0.62 dB, −109 to −7 dBm/1.23 MHz
RF OUT ONLY composite < ±1.2 dB, −109 to −12 dBm/1.23 MHz,
absolute output level
accuracy (AWGN on)
Typically < ±0.7 dB, −109 to −12 dBm/1.23 MHz
RF OUT ONLY reverse +24 dBm peak (250 mW peak)
power
RF OUT ONLY VSWR
Typically < 1.3:1 for 400 to 500 MHz, < 1.4:1 for
800 to 1000 MHz, and < 1.45:1 for 1.7 to 2.2
GHz
Isolation (from RF OUT
ONLY port to RF IN/OUT
when the RF source is
routed to the RF OUT
ONLY port)
Typically > 40 dB
F-pilot relative level
−20 to 0 dB or off
F-sync relative level −20 to 0 dB or off
F-paging relative level −20 to 0 dB or off
(PREV ≤ 6)
F-FCH channel relative Settable from −30 to 0 dB with 0.01 dB
level
resolution or off
F-SCH channel relative Settable from −20 to 0 dB with 0.01 dB
level
resolution or off
AWGN channel relative Settable to ± 15 dB relative to the user-set
level range
CDMA cell power with 0.01 dB resolution
F-OCNS Walsh code
length
Fixed to 64 bits
F-OCNS relative level
range
Automatically calculated from other code
channel relative levels to provide the set CDMA
cell power (range of −30 to 0 dB or off)
Relative CDMA channel Typically < ± 0.2 dB
level accuracy
CDMA modulation
Modulation type
Parallel BPSK for IS-95 channels and IS-2000
pilot, sync, and paging channels, and complex
QPSK for the F-FCH per IS-2000
Modulation quality
IS-95, F-RC1, and F-RC2 residual rho:
> 0.98, typically > 0.995
F-RC3, F-RC4, and F-RC5 residual rho (pilot
only): > 0.98, typically > 0.995
Residual EVM
< 10%, typically < 3.1%
Carrier feedthrough
Typically < −25 dBc