DESCRIPTION
The J-317MT and J317MST have been type accepted for
use under the 1991 FCC rule changes and meets or exceeds all past and present
applicable FCC part #74 requirements. this unit has been TYPE ACCEPTED
for 5 to 12 watts and is approved to drive higher powered amplifiers such
as Tepco's 250 Watt amplifier, model J3250, or
the 100 Watt amplifier, model J3100. The new, tighter
FCC frequency tolerance of +/-2000 Hz is easily met by this unit.
The J-317MST includes a stereo generator with optional
audio filtering and processing. The J-317MT is used for mono or with an
external stereo generator. The RF output is regulated for signal variation
and line voltage changes. Additionally, the output power stage is protected
in the event of serious load changes by a special power reduction circuit.
For locally originated announcements, as per FCC requirements, an optional
built-in audio exciter is available (see TC-2W under accessories). The
J-317MT/MST can be used for "SATALATOR" service, i.e.. mono, stereo, or
composite audio input; or as a low power FM station or backup..
Modular construction permits ease of access to all
components for service, test and part replacement. As much as possible;
standard, high quality parts are used throughout. Replacement parts are
available either directly from the Tepco Corporation, or through numerous
part suppliers. All units are environmentally tested at the factory under
operating conditions via a computer aided test program. A printout of this
accurate, unbiased data is shipped with each unit for verification and
future reference. The warranty covers all parts and workmanship for a period
of one year.
This transmitter model is ideal for solar powered
sites due to it's low power consumption. DC option (28VDC) available upon
request. A DC/DC converter is available: DC-40.
Frequency | Any frequency from 88 to 108 MHz |
Type of Emission | 180F3 |
Rated Output Power | 4 to 12 watts |
Power Output Regulation | Within 1% for any change In signal Input level or AC line variation of +/- 10% |
RF Output Impedance. UHF connector standard (other connectors available) | 50 or 75 Ohms |
Harmonics | -80dB or better |
Spurious Output (600 kHz removed) | -80dB or better |
FM Signal To Noise Ratio | -70dB or better |
AM Noise (Referred to carrier) Ratio | -65dB or better |
Modulator Audio Specifications | see FM modulator |
Stereo Generator Specifications | see FM-6 stereo generator |
Overall Frequency Stability | +/-1800 Hz from -30 to +50 deg C |
Power Requirements For 10 Watts RF out | +28 V DC 28 W max, 25 W typical
(+24 VDC 25 W max, 21 W typical 120 VAC 32 W max, 28 W typical) |
Power Required During Mute | 4 Watts |
Optional Audio Modulator | As per 74.1231f and 74. 123g |
Dimensions | 19" by 13" x 3 1/2" |
Weight | 13 lbs (Approx. 17 lbs. shipping) |
For more information, e-mail us at tepco@rapidnet.com.
Tepco Corporation
2603 S. Hwy 79
P0 Box 1160
Rapid City, SD 57709
Phone: 605-343-7200
FAX: 605-343-7240
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