User Manual

Digital Reprogrammable Software Radios R&S M3SR 7
AF outputs (WB) (valid for A9E and F9E in plain and fixed-frequency mode)
Line output
Impedance
Level with input signal –47 dBm,
f
m
= 1 kHz, m = 0.9 or ±6.25 kHz FM
deviation
600 : ±10%
1.4 V peak-peak nominal
(1 V to 8 V peak-peak settable) into
600 : unbalanced
AF response
With input signal –47 dBm, m = 0.9
Extended frequency range on request
30 Hz to 12000 Hz with ±2 dB
25000 Hz with d–10 dB (f
ref
= 1 kHz)
30 Hz to 16000 Hz with ±2 dB
THD (with input signal –79 dBm to
+3 dBm, m = 0.9, f
m
= 1 kHz and 600 :
termination)
d10%
AF outputs (data) (valid for ASK and FSK/MSK)
Data rate max. 32 kbit/s, higher data rates on
request
16 kbit/s baseband or diphase
m = 0.9; 'F = ±6.25 kHz
RF AGC
With modulated input signals AM
(m = 0.6) or FM (±4.66 kHz deviation)
–107 dBm to +1 dBm (LN mode) or
–101 dBm to +7 dBm (LD mode)
For values with guard receiver
installed, see page 9.
d3 dB AF output variation
Transmitter data
Unless stated otherwise, specs refer to the antenna terminal and involve an
antenna impedance of 50 : (max. VSWR = 1.1 and nominal power supply).
Output power
AM carrier power 30 W nominal, 1 W to 30 W adjustable
FM/FSK 100 W nominal, 1 W to 100 W adjust-
able
Power setting quasi-continuously and independently
for AM and FM
Power reduction
for VSWR d2
for VSWR !2
for 26 V (FM)/28 V (AM) to 19 V DC
d1 dB
graceful degradation
graceful degradation from nominal
power
Permissible mismatch without
damage
short circuit to open circuit, all phases
Duty cycle continuous transmission
Thermal protection integrated temperature-controlled fans
Unwanted emissions
Harmonics suppression VHF (108 MHz to 173.975 MHz)
UHF (225 MHz to 399.975 MHz):
t80 dB for 2nd harmonics
t65 dB for 2nd harmonics
t80 dB for 3rd harmonics and higher
Nonharmonic spurious suppression
(for !100 kHz from carrier frequency)
t80 dBc, 90 dBc typ.
Phase noise attenuation
at 'f = ±25 kHz from carrier
at 'f = ±1% from carrier
at 'f = !±10 MHz
t120 dBc (1 Hz) (VHF)/
t110 dBc (1 Hz) (UHF)
t150 dBc (1 Hz)
165 dBc (1 Hz)
AM modulation depth tolerance with
specified input level at AF inputs
80% to 98%
FM frequency deviation
Voice
WB/data
configurable acc. to the mode used;
examples
3.5 kHz
6.25 kHz
AF inputs (NB voice) (valid for A3E and F3E in plain and fixed-frequency mode)
Nominal input level voice audio 0 dBm
AF line input voice –15 dBm to +10 dBm settable, into
600 : ±10% balanced; transformers
with center tap for phantom circuit;
500 V minimum isolation against
ground
AF response
With 25 kHz channel spacing and
nominal input signal
With 8.33 kHz channel spacing and
nominal input signal
300 Hz to 3500 Hz with ±2 dB
d100 Hz with d–20 dB (f
ref
= 1 kHz)
t5000 Hz with d–25 dB (f
ref
= 1 kHz)
300 Hz to 2500 Hz with ±2 dB
d100 Hz with d–20 dB (f
ref
= 1 kHz)
t3200 Hz with d–25 dB (f
ref
= 1 kHz)
AF inputs (WB)
Nominal input level wideband 1.4 V peak-peak
AF line input WB/data 1 V to 8 V peak-peak adjustable,
into 600 : ±10%
AF response (valid for A9E)
With nominal input signal
Extended frequency range on request
30 Hz to 12000 Hz with ±2 dB
30 Hz to 16000 Hz with ±2 dB
AF response (valid for F9E)
With nominal input signal
Extended frequency range on request
300 Hz to 12000 Hz with ±2 dB
300 Hz to 16000 Hz with ±2 dB
AF inputs (data) (valid for ASK and FSK/MSK)
Data rate max. 32 kbit/s, higher data rates on
request
16 kbit/s baseband or diphase
m = 0.9; 'F = ±6.25 kHz
Distortion AM/FM
(with 0 dBm input (300 Hz to 3500 Hz))
d8%
ALC (automatic level control) function
selectable
Modulation depth variation for
±15 dB, with input level setting
–15 dBm to 0 dBm
m = 0.8 to 0.98
Noise modulation (S+N/N) (m = 0.9,
1 kHz; f
m
= 5 kHz) t40 dB
Special tones and PTT
Test tone 1 kHz/m = 0.9; generator included as
standard; for local and remote tests
Sidetone
(in plain AM/FM (normal voice) mode,
level related to adjusted RX output)
sidetone derived from carrier (AM) or
power monitor (FM) and introduced
into normal AF output
0 dB to 10 dB adjustable
PTT signalling variety of methods (configurable):
parallel (ground or voltage), serial or
via audio inband tone (e.g. 2040 Hz) on
request