Introduction
The Marti Model RPT-30 Transmitters are
designed to operate in the Remote Pick-Up
Broadcast Service as defined in Part 74, Subpart
D, of the FCC Rules and Regulations. Refer to
“Specifications” for a listing of the available
bandwidths. These transmitters, when used with
the recommended companion receiver, provide a
remote broadcast link having audio quality not
approached by conventional voice communica-
tion radio equipment. The RPT-30 transmitter
operates from both 115 volt, 50 - 60 Hz. AC
commercial power and 11 to 14 volt battery
(NEGATIVE GROUND) supply in fixed, port-
able, or mobile, service. Four audio input chan-
nels are provided with individual mixing gain
controls. A meter and selector switch are pro-
vided for monitoring audio compression, RF
output, and power supply voltage. The solid-
state audio processing technique pioneered and
proven by Marti Electronics in thousands of re-
mote pick-up broadcast transmitters over the
past 25 years has been applied to this model, re-
sulting in the highest audio quality possible,
consistent with transmission bandwidth and
other factors.
The RPT-30 has been designed to operate
with other Marti equipment to form large com-
munications systems capable of covering large
areas with broadcast-quality audio, while pro-
viding continuous-duty operation. The RPT-30
finds applications in mobile repeaters, fixed
automatic repeaters, base stations, and TSL
(transmitter-to-studio data links).
RPT-30 Features:
•
Continuous-duty output - 45 watts at 150 MHz. - 30 watts at 450 MHz.
•
Four balanced microphone mixing inputs, one switchable to balanced line level.
•
Dual-Frequency
capability.
•
Sub-Audible
Encoder.
•
Internal FM Compressor-Limiter.
•
Internal Noise Reduction System (2:1 Audio Compander - optional)
•
Flashing LEDs indicate antenna VSWR problems and over-temperature conditions
•
Illuminated VU Meter.
Summary of Contents for RPT-30
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