Operating Instructions

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ST600 TRANSMITTER

OPERATING INSTRUCTIONS

1892 1273

PL1

PL3

PL2

Figure 1 Physical Arrangement

These operating instructions are intended to provide the user with sufficient information

to install and operate the unit correctly.

The Wood and Douglas ST600 UHF transmitter is intended to fulfil the numerous OEM

applications by virtue of its highly flexible synthesized design approach, miniature size

and cost-effective performance. The transmitter can accept analogue and digital data

input and provides an RF output power of 125mW (adjustable down to 1mW, refer to

Sales Office for details).

INSTALLATION

NOTES: Pin spacing on all connectors is 2.54mm (0.1")

All dimensions in millimetres

For 7 pin connector version position is shown dotted.

Summary of content (8 pages)

PAGE 1
ST600 TRANSMITTER OPERATING INSTRUCTIONS 1892 1273 These operating instructions are intended to provide the user with sufficient information to install and operate the unit correctly. The Wood and Douglas ST600 UHF transmitter is intended to fulfil the numerous OEM applications by virtue of its highly flexible synthesized design approach, miniature size and cost-effective performance.
PAGE 2
CONNECTION Connection to the ST600 transmitter is via PL1, PL2 and PL3 which plug directly into the user's own equipment. The location of these connectors is shown in Figure 1 and detailed in the following tables. (The unit is fitted with a 10 pin connector when parallel frequency select facility is provided).
PAGE 3
FREQUENCY PROGRAMMING The ST600 has an internal memory which can store up to 128 RF channels (16 randomly programmed and 112 sequentially programmed). The frequency and set-up information is programmed into the unit by a synchronous PCM interface protocol. The software supplied with the ST600 transmitter is the STSRn00.exe program. The software can be run on a PC with the serial port connected to PL1 of the ST600 transmitter via a suitable adaptor as shown in Figure 2.
PAGE 4
RUNNING THE SOFTWARE 1. Connect ST600 to a suitable supply and to the PC using the programming adaptor. 2. Insert the STSRn00.exe disk into drive A and type: A:STSRn00 3. The user is then prompted to enter the serial port number of his PC which is used to communicate with the ST600 receiver. Enter 1 or 2. 4. Next there is a prompt to select STn00 or SRn00. Enter 1 for the ST600 5. Next is the prompt to select freq.
PAGE 5
STSRn00 Programmer v.1.0.02 Chan Chan Chan Chan Chan Chan Chan Chan Chan Chan Chan Chan Chan Chan Chan Chan 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 458.5 MHz << 458.5125 MHz 458.525 MHz 458.5375 MHz 458.55 MHz 458.5625 MHz 458.575 MHz 458.5875 MHz 458.6 MHz 458.6125 MHz 458.625 MHz 458.6375MHz 458.65 MHZ 458.6625MHz 458.675 MHz 458.6875MHz Start table 458.7 MHz Max. Freq. 458.95 MHz Table step 1 x 12.5 kHz Comparison freq. 12.5 KHz Ref. (TCXO) freq. 12.
PAGE 6
Parallel channel selection To enable parallel channel selection mode press the F4 (Parallel channel mode) function key, The screen then displays ‘parallel channel selected’. Three inputs RB1, RB3 and RB3 applied via PL3 to pin 8, pin 9 and pin 10 respectively, select the operating channel as shown in the following table.
PAGE 7
Programming from customer equipment In the event of a customer wishing to program the ST600 transmitter from his own equipment then the following data sequence must be used allowing 5ms between the characters in the data stream: 1200 baud, RS232 levels, 1 start bit - 8 bit data - no parity - 1 stop bit 40 (decimal 64) synchronising code 7 bit channel 0 - 127 (bit 7 = 0) 95 (decimal 149) confirmation byte RANGE INFORMATION The following table gives an indication of the typical ranges to be expected between
PAGE 8
TECHNICAL SPECIFICATION Frequency range Switching bandwidth Frequency stability Number of RF channels : : : : RF output power into 50 ohm : : : : Adjacent channel power TX switching time Modulation input analogue : digital : Frequency response : Deviation 25kHz channel spacing : 20kHz channel spacing : 12.5kHz channel spacing : Channel switching delay : Channel spacing : Modulation type : Spurious emissions (conducted & radiated) : Supply voltage : Supply current at 7.