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TABLE 1. STL–10A ELECTRICAL AND PHYSICAL SPECIFICATIONS
PARAMETER
ENVIRONMENTAL
OPERATING TEMPERATURE
RANGE
* Voltage must be specified with order.
** Requires APS–28/18 Power Supply
UNPACKING AND INSPECTING.
This equipment was factory tested, inspected, packed, and delivered to the carrier with utmost care. Do not accept
shipment from the carrier which shows damage or shortage until the carrier's agent endorses a statement of the irreg-
ularity on the face of the carrier's receipt. Without documentary evidence, a claim cannot be filed.
Unpack equipment immediately upon receipt and thoroughly inspect for concealed damage. If damage is discov-
ered, cease further unpacking and request immediate inspection by a local agent of the carrier. A written report of
the agent's findings, with his signature is necessary to support the claim. Check your shipment against the shipping
papers for possible shortage. Do not discard any packing material until all items are located. Small items are often
thrown away with packing material.
The packing material should be retained until equipment testing is completed. Any equipment returned to the
factory should be packed in the original cartons, insured, and pre–paid.
INSTALLATION.
Install rack–mounted equipment in a well ventilated, grounded, and shielded rack cabinet. Do not locate solid–state
equipment in a rack above tube–type equipment which produces high temperatures. Problems can also be avoided
by locating this unit away from other equipment which has transformers that produce strong magnetic fields. These
fields can induce hum and noise into the Marti equipment thus reducing performance. Strong radio–frequency (RF)
fields should be avoided where possible. Extensive shielding and filtering have been incorporated into this equip-
ment to permit operation in moderate RF environments. All equipment racks, cabinets, etc., should be bonded
together by wide copper grounding strap to ensure that all system elements are at the same RF ground potential.
STL–10A TRANSMITTER INSTALLATION.
1. Program audio output is connected to balanced audio input screw terminals. Use shielded wire. Program audio
level required is +8 dBm, 600 ohms balanced and isolated from ground. For dual channel stereo repeat
instructions at second transmitter. Audio processing requirements will be discussed in OPERATION.
2. Connect a Remote Control or Subcarrier Generator (modulator) to the jack marked "J1 SUB IN". The subcarrier
source may be 50 to 600 ohms impedance, and the input level required is approximately one (1) volt RMS.
Subcarrier frequencies may be between 39 KHz and 67 KHz. Systems factory supplied with 200 KHz IF
bandwidths will carry subcarriers up to 92 KHz. For other subcarrier frequencies or narrow IF bandwidth
systems contact the factory. A second subcarrier generator can be connected to J3. If a dual channel stereo STL
is used connect one subcarrier generator to J1 on each channel's transmitter.
(Sheet 2 of 2)
INSTALL RACK–MOUNTED EQUIPMENT IN A WELL VENTI-
LATED, GROUNDED, AND SHIELDED RACK CABINET.
SPECIFICATION
–20 C to +50 C (–4 F to +122 F).
5
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