Marti Electronics SRPT-40A - Specifications and Ordering; Technical Specifications

8/7/2003
4
Models SRPT-30 and SRPT-40A
Remote Pick-Up Broadcast Transmitters
SPECIFICATIONS & ORDERING
Conditions (unless specified otherwise): 1.5 VSWR, 110 VAC input with B+ = 13 Volts, 25ºC ambient
Frequency Bands and
Maximum Output Power:
See ORDERING INFORMATION below.
Frequency Agility and
Accuracy
SRPT-40A (450 models and
less)
An executed “dialed-in” frequency that operates within model frequency
range will have an accuracy within:
(1) ± .00004% for frequency divisible by 5 or 6.25 KHz, or
(2) ± .00015% for MOST frequencies NOT divisible by 5 or 6.25 KHz*
Frequency Agility and
Accuracy
SRPT-40A (800 models and
greater)
An executed “dialed-in” frequency that operates within model frequency
range will have an accuracy within:
(1) ± .00004% for frequency divisible by 10 or 12.5 KHz, or
(2) ± .00015% for MOST frequencies NOT divisible by 10 or
12.5 KHz*
Frequency Selection and
Accuracy
SRPT-30 (450 models and less)
Two frequencies only, F1 and F2, determined at time of order, must
operate within model frequency range and will have an accuracy within:
(1) ± .00004% for frequency divisible by 5 or 6.25 KHz, or
(2) ± .00015% for MOST frequencies NOT divisible by 5 or 6.25 KHz*
Frequency Selection and
Accuracy
SRPT-30 (800 models and
greater)
Two frequencies only, F1 and F2, determined at time of order, must
operate within model frequency range and will have an accuracy within:
(1) ± .00004% for frequency divisible by 10 or 12.5 KHz, or
(2) ± .00015% for MOST frequencies NOT divisible by 10 or
12.5 KHz*
Operating Temp. Range:
-10ºC to +45ºC
Frequency Stability (over
operating temperature range):
0.0001%
Deviation:
Adjustable, ± 20 KHz max
Audio Bandwidth:
Standard: 7.5 KHz
Available: 5 KHz, 10 KHz, specials upon request
Signal-to-Noise:
≥ 53 dB, 5 KHz deviation, 75 µsec pre/de-emphasis
Frequency Response:
± 1.5 dB from 50 Hz to Audio Bandwidth, 75 µsec pre/de-emphasis
Distortion:
≤ 2% from 50 Hz to Audio Bandwidth, 75 µsec pre/de-emphasis
Spurious Emissions:
More than 60 dB below carrier
RF Connector:
Type N-Female
RF Output Impedance:
50 Ohms
Audio Inputs:
Four balanced microphone (150 ohms) inputs (XLR-3) with mixing
controls. One input switchable to balanced line level at microphone #4
input and D connector on rear panel.
Audio Input Levels:
Microphone: -68 to -35 dBm
Line: 0 to +10 dBm, 6-800 Ohms
Modulation Control:
Broadcast-quality compressor/limiter built in.
Encoding:
Sub audible 27 Hz. tone encoder built in.
Metering/Indicators:
Illuminated meter indicates forward and reverse power, PA current, B+,
and audio compression. LEDs indicate TRANSMIT, AFC LOCK,
HIGH VSWR, and HIGH TEMP.