Watkins-Johnson Company WJ-8711A, Installation, Operation And Maintenance Manual

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TABLE OF CONTENTS WJ-8711A DIGITAL HF RECEIVER
xii
TABLE OF CONTENTS (Continued)
SECTION III (Continued)
LOCAL OPERATION
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Page
3.5.2
Selecting a Detection Mode ..................................................................................... 3-29
3.5.3 Selecting an IF Bandwidth ....................................................................................... 3-30
3.5.3.1 Including an IF Bandwidth Filter for Selection ....................................................... 3-31
3.5.4 Setting the Squelch Level......................................................................................... 3-31
3.5.5 Attenuating or Amplifying Input Signals Via the RF Input Path Selection............. 3-32
3.5.6 Selecting the Gain Control Mode............................................................................. 3-32
3.5.7 Aiding CW Detection with the BFO Function......................................................... 3-32
3.5.8 Passband Tuning in CW Detection Mode ................................................................ 3-33
3.5.9 Blanking Out Noise Interference.............................................................................. 3-34
3.5.10 Using the Tunable Notch Filter................................................................................ 3-34
3.6 Storing Current Receiver Parameters in Memory .................................................... 3-36
3.7 Changing Receiver Parameters to Those Stored in a Memory Channel .................. 3-36
3.8 Operation in the Scan Mode..................................................................................... 3-36
3.8.1 Using the Dwell Timer ............................................................................................. 3-37
3.8.2 Scan Setups .............................................................................................................. 3-37
3.8.2.1 CHANNEL Scan Setup ............................................................................................ 3-38
3.8.2.2 Frequency-to-Frequency (F1
→
F2) Scan Setup........................................................ 3-39
3.8.2.3 Frequency-to-Frequency with Lockouts (F1
→
F2 w/Lock) Scan Setup .................. 3-39
3.8.3 Placing the Receiver in Scan Mode.......................................................................... 3-40
3.8.4 Pausing and Restarting Scans................................................................................... 3-40
3.9 Running the Built-In-Test Function (BITE)............................................................. 3-41
3.10 Displaying the Receiver's Current Internal Control Software Version.................... 3-42
3.11 Setting Remote Operation Configurations from the Front Panel............................. 3-43
3.11.1 Selecting the RS-232 or the CSMA Interface for Remote Operations .................... 3-43
3.11.2 Selecting the Baud Rate for Remote Operations...................................................... 3-43
3.11.3 Selecting the Receiver's Address for CSMA Remote Operations............................ 3-43
SECTION IV
RS-232 REMOTE OPERATION
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4.1
Introduction .............................................................................................................. 4-1
4.2 Interfacing With the WJ-8711A ............................................................................... 4-2
4.3 Command Message Formatting................................................................................ 4-3
4.3.1 Terminators for Commands and Queries ................................................................. 4-3
4.3.2 Formats of Query Responses.................................................................................... 4-3
4.3.3 Representations of Numeric Arguments .................................................................. 4-3
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