Hal Communications ST-7000 Manuals

Manuals and User Guides for Hal Communications ST-7000. We have 1 Hal Communications ST-7000 manual available for free PDF download: Manual

Hal Communications ST-7000 Manual

Hal Communications ST-7000 Manual (53 pages)

HF Demodulator for Packet Radio

Brand: Hal Communications | Category: Modulator | Size: 2.3 MB

Table of Contents

Table of Contents
2
Chapter 1. Unpacking and Inspection

4
Chapter 2. Installation

5
- DC Power
  7
- HF Radio Connection
  7
- HF Receive Audio
  9
- HF Transmit Audio
  9
- HF PTT Connection
  10
- HF GROUND Connection
  10
- Packet Controller Connections
  11
- TNC AUDIO Interface
  11
- TNC TTL I/0 Connections
  12
- RPC-2000 RS232 I/0 Connections
  15
- VHF RADIO Connection
  17
Chapter 3. Operation

18
- Controls and Indicators
  18
- HF/VHF Switch
  18
- SHIFT Switch
  18
- THRESHOLD Control
  19
- Tuning Indicator
  19
- Use of the ST-7000
  21
- General Considerations
  21
- HF Packet Operation
  21
- Hf Rtty and Amtor Operation
  22
- HF PTT Control
  22
- HF RX Data Squelch
  23
- HF Transmit Tone ON/OFF
  23
Chapter 4. Theory of Operation

25
- AF Input Filters
  26
- Receive Audio AGC
  26
- Mark Filter - 600 Hz Shift
  26
- Space Filter - 600 Hz Shift
  27
- 200 Hz Detector and SHIFT Switch
  27
- HF Transmit Tone Generator
  28
- RS232 and TTL I/0 Interface
  29
- TNC Audio Modem
  29
- TNC Audio Interface and PTT
  30
- Power Supplies
  30
- Tuning Indicator
  31
- Threshold Circuit
  31
- ST-7000 Circuit Board Arrangement
  31
Chapter 5. Test and Alignment

46
Chapter 6. Specifications

52
- Limited Warranty
  53

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