Contents
8700 General Specifications ....4
8700 Declaration Of Conformity 5
8700 Frequency Source/Measure GPS Standard 6
Introduction........................................................6
Main Features ....................................................6
Preparing the Unit for Use .......7
Initial Inspection .................................................7
Positioning the Standard ....................................7
Positioning the Antenna......................................7
Rear Panel Connections ....................................8
Setting and checking the line voltage .................8
Powering up the Instrument................................9
RS232 Interface .................................................9
USB Interface.....................................................9
Ethernet Interface ..............................................10
GPIB Interface ...................................................10
Front Panel Connections .........11
Output Connectors .............................................11
Input Connectors................................................11
Input Characteristics ..........................................11
Operation ................................12
Front Panel Controls ..........................................12
GPS Status Display............................................13
Source Functions.....................14
GPS FREQUENCY [10MHz REFERENCE].........14
GPS FREQUENCY [DIVIDER MODE] ................15
LF SOURCE [DDS SQUARE WAVE] ..................16
LF SOURCE [DDS SINE WAVE].........................17
LF SOURCE [A-B PHASE] .................................18
HF SOURCE [VCO]............................................19
Measure Functions ..................20
LF Measure........................................................20
HF Measure .......................................................21
Frequency / Period Display Select......................22
Gate Time ..........................................................22
Sensitivity ..........................................................22
High Frequency Filter.........................................22
AC/DC Coupling.................................................22
Trigger Level ......................................................22
Function Menu.........................23
Config 1 [Page 1] Menu ...........23
Instrument Information .......................................23
Set System Password ........................................24
Regional Settings...............................................24
Interface.............................................................25
Backlight Timeout...............................................25
Firmware Update................................................26
Config 2 [Page 2] Menu ...........27
System Time & Date...........................................27
Activate Screensaver .........................................28
GPS History Logging ...............29
View GPS History [Last 100 Events]...................30
Export GPS History [USB Data Port] ..................31
Print GPS History...............................................31
Backup & Reset GPS History [USB PORT].........32
Remote Commands .................33
Introduction........................................................33
Programming Overview ......................................33
Compound Commands.......................................33
Response / Error Codes.....................................34
Frequency Source - 10 MHz Output ...................34
Frequency Source - 1Hz - 5MHz Divided Output 34
Frequency Source - Low Frequency 5V Pk-pk ....35
Frequency Source - Low Frequency Sine ...........35
Frequency Source - High Frequency ..................36
Frequency Source - A-B Relative Phase.............37
LF Measurement ...............................................38
LF Measurement - Gate Time.............................38
LF Measurement - Trigger Level.........................39
LF Measurement - Sensitivity .............................39
LF Measurement - High Frequency Filter............39
LF Measurement - AC / DC Coupling..................40
LF Measurement - Frequeny / Period Display.....40
HF Measurement - Gate Time ............................41
HF Measurement - Trigger Level ........................41
HF Frequency Measurement - Sensitivity ...........41
HF Measurement - High Frequency Filter ...........42
HF Measurement - AC / DC Coupling .................42
HF Measurement - Gate Time ............................42
HF Measurement - Trigger Level ........................43
HF Measurement - Sensitivity.............................43
HF Measurement - High Frequency Filter ...........43
LF Measurement - AC / DC Coupling..................44
Frequency Measurement - Period ......................44
GPS Data ................................45
GPS Status : Fix ................................................45
GPS Status : Number of Tracked Satellites ........ 45
GPS Status : Number of Tracked Satellites ........ 45
GPS Status : Location........................................45
GPS Status : Date [UTC]....................................45
GPS Status : Time [UTC]....................................46
Theory of Operation.................47
Circuit Description..............................................47
Traceability ........................................................48
