Atec Rohde-Schwarz-ESU-40 - Manual (Page 16)

16 R&S ® ESU EMI Test Receiver Version 02.00, October 2007
Modulation
Modulation format
external I/Q, AM, FM
full scale
AM, FM, V pp 1 V
Input voltage
I/Q
= + 2 2
q i
U U 0.5 V
AM f
center
> f
mod
, span = 0 Hz
Modulation depth 0 % to 99 %
0 Hz to 5 MHz 1 dB Modulation frequency response
0 Hz to 30 MHz 3 dB
FM f
center
> f
mod
, span = 0 Hz
Frequency deviation full range: 100 Hz, 1 kHz, 10 kHz,
100 kHz, 1 MHz
deviation ≤10 MHz 0 Hz to 1 kHz Modulation frequency range
deviation ≤1 MHz 0 Hz to 100 kHz
Modulation frequency response 0 kHz to 100 kHz 1 dB
I/Q modulation f
center
> f
mod
, span = 0 Hz
0 Hz to 5 MHz 1 dB Modulation frequency response
0 Hz to 30 MHz 3 dB
Modulation deviation of tracking
generator I/Q modulation, typical values, baseband signals generated by the R&S ® AMIQ
NADC/TETRA/PDC
RMS 2 %
peak 4 %
PHS
RMS 2 %
EVM
peak 5 %
GSM/DCS1800/PCS1900
RMS 1.5° Phase error
peak 5°
Rho factor IS-95 CDMA 0.997
Inputs and outputs (front panel)
RF output
N female, 50 Ω
100 kHz ≤ f < 2 GHz 1.2 VSWR
2 GHz ≤ f ≤ 3.6 GHz 1.5
Inputs and outputs (rear panel)
TG I/AM IN
BNC female
Impedance 50 Ω
Input voltage V
pp
1 V
TG Q/FM IN BNC female
Impedance 50 Ω
Input voltage V
pp
1 V