Atec Anritsu-MG3670 Series - Manual (Page 5)

RADIO COMMUNICATIONS, EMI MEASURING TEST INSTRUMENTS
294 www.anritsu.com For product ordering information, see pages 4-7.
Internal modulation Depends on installed modulation unit (MG0301C/0302A/0305A/0307A/0310A/0311A/0312A/0314A)
For MG3670B/C, MG3671A/B
Any modulation using I/Q input signal
Input frequency: DC to 1.2 MHz*
3
Input level:
√
I 2 ± Q 2 ≤0.5 Vrms, BNC connector
* I/Q ≤1.5 Vp-p (50 Ω), I/Q ≤10% to 100% of 1.5 Vp-p (CMOS)
Digital External Vector error: ≤1.8%rms (I/Q input level: 1 Vrms/50 Ω, at ≤+5 dBm output)
modulation modulation For MG3672A
50 Ω input
Input frequency: DC to 30 MHz (BW: 3 dB, 18˚ to 30˚C), Input level:
√
I 2 ± Q 2 ≤1.0 Vrms, I/Q ≤1.5 Vp-p
CMOS input
Input frequency: DC to 1.2 MHz, Input level:
√
I 2 ± Q 2 ≤1.0 Vrms, I/Q ≤1.5 Vp-p
I/Q output Outputs I/Q signal at internal modulation (MG0301C/0302A/0305A/0307A/0310A/0311A/0312A/0314A installed)
Pulse
Input TTL level, BNC connector, polarity selectable
modulation
On/off ratio ≥40 dB (at ≥0 dBm output)
Transition time ≤2 µs, minimum pulse width: 10 µs
Memory Frequency memory 1000 carrier frequencies (save and recall)
function Parameter memory 100 panel settings (save and recall)
Relative display Carrier frequency, output level
I/Q signal adjustment Variable offset, balance, phase (only output) of I/Q input/output signal (DC to 1.2 MHz)
Other Backup Last settings stored at power-off
functions
Reverse power
protection
Maximum reverse input power: 50 W (<1000 MHz), 25 W ( ≥1000 MHz), ±50 Vdc
GPIB
All functions except power switch and panel lock switch controlled
Interface function: SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT0, C0, E2
Operating temperature 0˚ to 50˚C
Power 100 to 120/200 to 240 Vac (switchable), 47.5 to 63 Hz, ≤550 VA
Dimensions and mass (426±5) W x (221.5±4) H x (451±5) D mm, ≤27 kg
EMC* 4 EN55011 (1991, Group 1, Class A), EN50082-1 (1992), Harmonic current emissions EN61000-3-2 (1995)
Safety EN61010-1: 1993 (Installation Category ΙΙ, Pollution Degree ΙΙ)
* 1: Internal reference oscillator accuracy: 2 x 10 –8 /day (23˚ ±5˚C), calibrated after 24 h operation
* 2: Depended on the specifications of each units when MG0310A or MG0314A unit are installed.
* 3: Refer to the “Frequency response for I/Q external modulation (typical value)” on page 262 for the input frequency range. Typical values are given for refer-
ence only to assist in the use of this instrument, and are not guaranteed specifications.
* 4: Electromagnetic compatibility
MG0301C π/4 DQPSK Modulation Unit (incorporated in the MG3670B/C, MG3671A/B and MG3672A)
Applicable
communication system
PDC, PDC_H, PHS, NADC, TFTS
Modulation system π/4 DQPSK
Vector error I/Q signal: ≤1.5%rms (at 50 Ω output), RF signal: ≤1.8%rms (at ≤+5 dBm output)
Internal modulation Pseudorandom pattern: PN15, PN9
data Free 4-bit repetition pattern (ex: 1010, 1111)
DATA CLOCK: Covering ±5% of bit rate
External modulation DATA: Digital data synchronized with DATA CLOCK
data 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 (TFTS: 1111)]: 1 Vp-p ±2% (MG3670A/B/C, MG3671A/B), 2 Vp-p ±2% (MG3672A)
CMOS setting [modulation data: 0000 (TFTS: 1111)]
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 frequency range:
300 kHz to 2250 MHz* 1 (incorporated in the MG3670B/C), 300 kHz to 2750 MHz (incorporated in the MG3671A/B and MG3672A)
PDC, PDC_H
Bit rate: 42 kbps
Baseband filter: Root Nyquist (
α = 0.5), Nyquist (α = 0.5)
Carrier frequency range:
1 to 2250 MHz* 1 (incorporated in the MG3670B/C), 1 to 2750 MHz (incorporated in the MG3671A/B and MG3672A)
PHS Bit rate: 384 kbps
Baseband filter: Root Nyquist (
α = 0.5), Nyquist (α = 0.5)
Adjacent channel power ratio: ≤–74 dB (600/900 kHz offset, ±96 kHz band, ≥10 MHz)* 2
Carrier frequency range:
300 kHz to 2250 MHz* 1 (incorporated in the MG3670B/C), 300 kHz to 2750 MHz (incorporated in the MG3671A/B and MG3672A)
NADC
Bit rate: 48.6 kbps
Baseband filter: Root Nyquist (
α = 0.35), Nyquist (α = 0.35)
Carrier frequency range:
300 kHz to 2250 MHz* 1 (incorporated in the MG3670B/C), 300 kHz to 2750 MHz (incorporated in the MG3671A/B and MG3672A)
TFTS
Bit rate: 44.2 kbps
Baseband filter: Root Nyquist (
α = 0.4), Nyquist (α = 0.4)
* 1: The upper frequency is limited by the specifications of the main frame in which this unit is installed.
* 2: Applicable when this unit is installed in MG3670B/C, MG3671A/B and MG3672A. Not applicable when this unit is installed in MG3670A.