SYNAPSE30
30W FM Exciter
User Manual
TECHNICAL SPECIFICATIONS
GENERAL
Power Output
30W
RF Output Impedance
50
Ω
RF Output Connector
“N” Type
Monitor RF
-54 dBc - BNC connector
Frequency Range
87.5 – 108 MHz
VSWR
1.5:1 Maximum
Frequency control
Synthesizer
µ
processor controlled
Lock-in time
Typically 4 secs
Modulation mode
Mono, Stereo, Multiplex, AUX
Off-lock attenuation
> -80 dB
RF harmonics
Exceeds ETSI, EBU/CCIR/FCC requirements
RF spurious
Exceeds ETSI, EBU/CCIR/FCC requirements
Pre-emphasis
Flat/50/75
µ
s selectable from back panel
MONAURAL OPERATION
Audio frequency response
±
0.15 dB 20 Hz to 15 kHz (+0/-2%)
Audio input Level
-3 to +9 dBm
Audio input impedance
600 ohm balanced, 10 KOhm unbalanced
Input Connector
XLR female ([6] fig. 2)
Audio frequency response
±
0.1 dB, 30 Hz to 15 KHz
Total Harmonic dist noise
0.05% @ 400 Hz
Intermodulation Distortion
0.05%, 1 KHz/1.3 KHz, 1:1 ratio
Transient Intermodulation Distortion
0,05%, 2.96 KHz square wave and 14 KHz sine wave.
FM S/N Ratio
-
82 dB RMS detector, -80 dB below ±75 KHz deviation, 50 µs
de-emphasis, weighted.
Distortion
0.05%, 2.96 KHz squere wave and 14 KHz sine wave
Pilot frequency
19 KHz ± 1 Hz
Phase Pilot
± 2° adjustable
Output Pilot
1 Vpp., BNC female
Audio filter Attenuation
≥
-45 dB @ 19 KHz, > -40 dB 20 KHz to 100 KHz.
Modes
Stereo, Mono L+R, Mono L, Mono R.
MPX OPERATION (External coder)
Input Connector
BNC female ([5] fig. 2)
Composite input impedance
1,2 KOhm unbalanced
Composite input level
+6 to +12 dBm
Composite amplitude response
±
0.2 dB 30 Hz to 100 kHz
THD+N on encoded channels
30 Hz to 15 kHz
<
0.05% @ 400 Hz
IMD
Measured with a 1 KHz and 1.3 KHz tones; 1:1ratio at FM 75 kHz
D2<-75 dB D3<-80 dB Typ. D2<-80dB D3< -85 dB
TIM (DIM30)
Measured with a 2.96 kHz square wave and a 14 kHz sine wave
FM S/N Ratio
-
83 dB RMS detector, -80 dB below ±75 KHz dev.50 µs de-
emphasis, weighted.
