Atec Anritsu-MG3670 Series User Manual
Page 6
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RADIO COMMUNICATIONS, EMI MEASURING TEST INSTRUMENTS
6
Applicable communication system
GSM, DCS1800 (PCN), CT2
Modulation system
GMSK
I/Q signal:
≤1˚ rms, ≤3˚ peak (at 1 Vrms/50 Ω output, 25˚ ±5˚C, after 30 min. warm-up)
Phase error
≤2˚ rms, ≤5˚ peak (at 1 Vrms/50 Ω output)
RF signal:
≤1˚ rms, ≤3˚ peak (at ≤+5 dBm output, 25˚ ±5˚C, after 30 min. warm-up)
≤2˚ rms, ≤5˚ peak (at ≤+5 dBm output)
Internal modulation data
Pseudorandom pattern: PN15, PN9, free 4-bit repetition pattern (ex: 1010, 1111)
DATA CLOCK: Covering ±5% of bit rate, DATA: Digital data synchronized with DATA CLOCK
External modulation data
*
TTL level, BNC connector, polarity selectable
Selectable 50
Ω or CMOS (600 Ω), BNC connector
50
Ω setting (modulation data: 0000): 1 Vp-p ±2% (MG3670A/B/C, MG3671A/B), 2 Vp-p ±2% (MG3672A)
CMOS setting (modulation data: 0000)
I/Q signal output
Variable in 10% steps over range of 10% to 100% of 1 Vp-p ±2%, variable offset voltage: 0 to 4 V in 1 mV steps
(MG3670A/B/C, MG3671A/B), Variable in 10% steps over range of 10% to 100% of 2 Vp-p ±2%, variable offset voltage:
0 to 4 V in 1 mV steps (MG3672A)
Carrier wave frequency range:
1 to 2250 MHz*
1
(incorporated in the MG3670B/C), 1 to 2750 MHz (incorporated in the MG3671A/B and MG3672A)
GSM/PCN (DCS1800)
Bit rate: 270.833 kbps
Baseband filter: Gaussian filter BbT = 0.3
Carrier wave frequency range: 300 kHz to 2250 MHz*
1
(incorporated in the MG3670B/C),
CT2
300 kHz to 2750 MHz (incorporated in the MG3671A/B and MG3672A)
Bit rate: 72 kbps
Baseband filter: Gaussian filter BbT = 0.5
*
1: The upper frequency is limited by the specifications of the mainframe in which this unit is installed.
MG0305A GFSK Modulation Unit (incorporated in the MG3670B/C, MG3671A/B and MG3672A)
MG0302A GMSK Modulation Unit (incorporated in the MG3670B/C, MG3671A/B and MG3672A)
Applicable communication system
DECT
Modulation system
GFSK
Vector error
I/Q signal:
≤12 kHz (at 1 Vrms/50 Ω output), RF signal: ≤12 kHz (at ≤+5 dBm output, modulation data: FFFF)
Internal modulation data
Pseudo-random pattern: PN15/PN9, Free 16-bit repetition pattern (ex: 0F0F, 00FF)
DATA CLOCK: Covering ±5% of bit rate, DATA: Digital data synchronized with DATA CLOCK
External modulation data
*
TTL level, BNC connector, polarity selectable
Selectable 50
Ω or CMOS (600 Ω), BNC connector
50
Ω setting (modulation data: 0000): 1 Vp-p ±6% (MG3670A/B/C, MG3671A/B), 2 Vp-p ±6% (MG3672A)
CMOS setting (modulation data: 0000)
I/Q signal output
Variable in 10% steps over range of 10% to 100% of 1 Vp-p ±6%, variable offset voltage: 0 to 4 V in 1 mV steps
(MG3670A/B/C, MG3671A/B), Variable in 10% steps over range of 10% to 100% of 2 Vp-p ±6%, variable offset voltage:
0 to 4 V in 1 mV steps (MG3672A)
Phase polarity
Polarity reversal of frequency deviation during modulation is possible.
Carrier frequency range:
5 to 2250 MHz*
1
(incorporated in the MG3670B/C), 5 to 2750 MHz (incorporated in the MG3671A/B and MG3672A)
DECT
Bit rate: 1152 kbps
Deviation ratio: 70% (202 kHz), 90% (259 kHz), 100% (288 kHz), 140% (403 kHz), at BbT=0.5
Baseband filter: Gaussian filter BbT = 0.4, 0.5, 0.6, at deviation ratio = 100%
*
1: The upper frequency is limited by the specifications of the mainframe in which this unit is installed.
MG0307A
π/4 DQPSK Modulation Unit (incorporated in the MG3670B/C, MG3671A/B and MG3672A)
Applicable communication system
PACS, WCPE, PHS
Modulation system
π/4 DQPSK
Vector error
I/Q signal:
≤1.5%rms (at 1 Vrms/50 Ω output), RF signal: ≤1.8%rms (at ≤+5 dBm output)
Pseudo-random pattern: PN15, PN9
Internal data mode
Free 16-bit repetition pattern (ex: 0F0F, 00FF): WCPE
Free 4-bit repetition pattern (ex: 0101, 0011): PACS, PHS
DATA CLOCK: Covering ±5% of bit rate
External data mode
DATA: Digital data synchronized with DATA CLOCK
SYMBOL CLOCK: Clock specified by DATA synchronized with DATA CLOCK
TTL level, BNC connector, polarity selectable
Selectable 50
Ω or CMOS (600 Ω), BNC connector
50
Ω setting (modulation data: 0000): 1 Vp-p ±5% (MG3670A/B/C, MG3671A/B), 2 Vp-p ±5% (MG3672A)
I/Q signal output
CMOS setting (modulation data: 0000)
Variable in 10% steps over range of 10% to 100% of 1 Vp-p ±5%, variable offset voltage: 0 to 4 V in 1 mV steps
(MG3670A/B/C, MG3671A/B), Variable in 10% steps over range of 10% to 100% of 2 Vp-p ±5%, variable offset voltage:
0 to 4 V in 1 mV steps (MG3672A)
Phase encode function
Invertible phase polarity at modulation
Carrier frequency range:
1 to 2250 MHz*
1
(incorporated in the MG3670B/C), 1 to 2750 MHz (incorporated in the MG3671A/B and MG3672A)
PACS
Bit rate: 384 kbps
Baseband filter: Root Nyquist (
α = 0.5), Nyquist (α = 0.5)
Carrier frequency range:
5 to 2250 MHz*
1
(incorporated in the MG3670B/C), 5 to 2750 MHz (incorporated in the MG3671A/B and MG3672A)
WCPE
Bit rate: 1152 kbps
Baseband filter: Root Nyquist (
α = 0.5), Nyquist (α = 0.5)
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