R a d i o S y s t e m s , I n c .
T R - 6 0 0 0 M a n u a l
P a g e 5
TR-6000 AM Broadcast Transmitter
Operating Instructions
Overview
The TR-6000 is a solid-state, class D AM transmitter specially designed for traveler’s information, carrier
current, roadside radio, and other low-power broadcast band AM applications.
The unit features a frequency synthesized oscillator, full remote control, LED power and audio meters,
0 to 10 watt output power, short circuit protections, balanced audio inputs, and monitor and headphone
outputs. The TR-6000 is shipped factory set for 10-watt operation. 10-watt units are provided with a 24-
volt external power supply. The TR-6000 can be powered by storage batteries (not supplied).
The TR-6000 is FCC certified for TIS operation anywhere within the AM broadcast band.
Available Options
• brackets for wall or 19’ EIA rack mounting
Front Panel Controls
Power switch
-
supplies
DC
to
the
unit
Do not power up without a 50 ohm output load.
Meter switch - illuminates power and VU LED meters.
Leave off to increase efficiency for battery or solar operation.
Power Adjust
-
sets
RF
output
level
Set (with no modulation required) to desired carrier level on 10 watt scale
Mod(ulation) adjust - set for 100% modulation on VU meter
For TIS operation the internal audio filter must be engaged. Consult the internal parts layout diagram for
location.
Connections
CAUTION: Make all connectors prior to applying DC voltage via the supplied transformer or any
external DC source.
RF out
-
Connect
to
50
ohm
load
Audio input - Apply line-level balanced audio source
DC in - Apply 24 volts to 24 volt terminals via DC transformer connect or DC input
screw terminals (do not apply both inputs simultaneously, however DC may be derived from the
DC terminals for low-current applications when the transformer is utilized).
Relay contacts - (Depending on internal strap programming) This relay can control or be controlled by
the transmitter for external device remote control.
Switched monitor audio control - controls the audio output feed to a remote location for remote
monitoring.
Switched monitor audio out - balanced/switched (see above) monitor feed.
Monitor audio out - balanced/non-switched audio feed.
Summary of Contents for TR-6000
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