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AT Command Reference
80-99208-1 Rev. D 6-73
Results Returned
Use Van Jacobsen Header Compression ($QCVJ)
Syntax
$QCVJ[=<usevj>|?|=?]
Description
Allows Van Jacobsen header compression to be turned on or
off for the next negotiated connection.
Valid Value(s)
<usevj>
Missing Parameter Default Value(s)
Power-On/Reset Default Value(s)
Result Code Condition
OK The values entered into the
command were correct.
ERROR Incorrect syntax, value out of range,
or incorrect number of parameters
$QCTCP: <tcpmod>,
<lowertxmss>,
<uppertxmss>,
<rxmss>,<minrto>,
<maxrto>,<minato>,
<maxato>,
<tcpmaxbackoff>
? is used to query current setting.
$QCTCP: (0-1),
(0-1500), (0,1500),
(0-1500),(0-54464),
(0-54464),(0-1000),
(0-6000),(0-100)
=? is used to query acceptable range
if the <value> parameter
0 Turn Van Jacobsen header compression off.
1 Use Van Jacobsen header compression.
1 Use Van Jacobsen header compression.
<usevj> = 1
- TABLE OF CONTENTS 2
- Table of Contents 4
- 80-99208-1 Rev. D v 4
- 80-99208-1 Rev. D vii 6
- 80-99208-1 Rev. D ix 8
- LIST OF FIGURES 10
- LIST OF TABLES 12
- REVISION HISTORY 14
- ABOUT THIS MANUAL 16
- How This Manual Is Organized 17
- Notational Conventions 18
- Abbreviations and Acronyms 19
- About This Manual 20
- 80-99208-1 Rev. D xxi 20
- Related Documentation 22
- Cautions and Warnings 23
- 1 GETTING STARTED 24
- GSP-1620 Modem Overview 25
- 1-4 80-99208-1 Rev. D 27
- Getting Started 28
- 80-99208-1 Rev. D 1-5 28
- Asynchronous Data 28
- Conceptual Overview 29
- 80-99208-1 Rev. D 1-7 30
- 80-99208-1 Rev. D 1-9 32
- 1-10 80-99208-1 Rev. D 33
- 2 QUICK BENCH SET-UP 34
- A Quick Tour of the Modem 35
- Quick Bench Set-Up 36
- 80-99208-1 Rev. D 2-3 36
- Connecting the Modem Cables 37
- Connecting Antenna Cables 39
- 005AA_01 41
- RX Antenna connector 43
- TX Antenna connector 43
- (labeled on antenna base) 43
- O-Ring groove 43
- Mounting the Modem 44
- Grounding the System 44
- Providing Power to the Modem 45
- 80-99208-1 Rev. D 2-13 46
- Testing the Modem Setup 49
- Where to Go Next 53
- 3 SERVICE-PROGRAMMING MODEMS 54
- UTPST Overview 55
- Using the UTPST 55
- Bulk-Programming Modems 60
- Upgrading Modem Software 60
- 4 MAKING SIMPLE DATA CALLS 62
- Entering Online-Command Mode 66
- 4-6 80-99208-1 Rev. D 67
- DEVELOPING MODEM APPLICATIONS 68
- Recommended Development Tools 69
- SCADA Application Components 69
- 80-99208-1 Rev. D 5-3 70
- Modem Application Scenarios 72
- 5-6 80-99208-1 Rev. D 73
- Working with Modem Features 74
- Port Arbitration Behavior 76
- AT Command Processing Modes 79
- 80-99208-1 Rev. D 5-13 80
- Globalstar Satellite Service 83
- Short Messaging Service (SMS) 84
- SMS Message Field Information 85
- SMS AT Commands 85
- Globalstar Service Alerts 86
- Service Status Message 87
- Using Packet Data 88
- Data Rate and Throughput 89
- Dynamic IP Addressing 90
- Fixed IP Addressing 91
- Finding IP Addresses 91
- Dormant Mode Service 92
- ■ Use the ATD#777 command 94
- 80-99208-1 Rev. D 5-29 96
- Using Asynchronous Data 97
- Integrator’s Reference Manual 101
- 5-34 80-99208-1 Rev. D 101
- 80-99208-1 Rev. D 5-35 102
- +++ (surrounded by 104
- 5-38 80-99208-1 Rev. D 105
- 6 AT COMMAND REFERENCE 106
- AT Commands Overview 112
- Basic AT Commands 113
- Results Returned 114
- Command Echo (E) 114
- Get Info (I) 114
- Monitor Speaker Loudness (L) 115
- Monitor Speaker Mode (M) 116
- Select Pulse Dialing (P) 116
- Result Code Suppression (Q) 117
- Select Tone Dialing (T) 118
- DCE Response Format (V) 118
- Basic Action Commands 123
- Repeat Last Command (A/) 124
- Dial (D) 125
- Hook Control (H) 127
- Basic S-Registers 129
- Automatic Answer (S0) 130
- Comma Dial Modifier Time (S8) 134
- Silent Retry Timeout (S777) 136
- is assumed to be 1 138
- Set Character Framing (+ICF) 140
- Set Local Flow Control (+IFC) 141
- Online-Command Mode Commands 145
- Dormant Mode Commands 153
- Packet No Dial ($QCPKND) 155
- SMS Commands 156
- SMS Print ($QCSMSP) 157
- See Table 6-5 158
- SMS Lock ($QCSMSL) 161
- SMS Alert ($QCSMSA) 162
- SMS Info ($QCSMSI) 163
- Error Log Services Commands 164
- Clear Error Log ($QCCLR) 165
- Service Status Commands 166
- Service Status ($QCSTATUS) 167
- Time of Day ($QCTOD) 169
- Markov Statistics ($QCMSTATS) 173
- Set Mode ($QCMODE) 174
- TCP Stack Changes ($QCTCP) 175
- is set to zero, the rest 176
- INTEGRATING GSP-1620 MODEMS 180
- OEM PRODUCTS 180
- Modem Mechanical Description 182
- 7-4 80-99208-1 Rev. D 183
- 80-99208-1 Rev. D 7-5 184
- Modem Antenna Connectors 185
- Data and Control Ports 185
- Control Port Signals 187
- Data Port Signals 188
- Diagnostic Port 191
- Diagnostic Port Pinouts 192
- DC Power 194
- Surge Protection 195
- EMI Filtering 195
- Power Consumption 195
- Power-On 196
- Grounding 197
- Modem Mounting Guidelines 198
- 80-99208-1 Rev. D 7-21 200
- Mounting Antennas On-Site 201
- Antenna Dimensions and Weight 202
- Antenna Depiction 202
- 7-24 80-99208-1 Rev. D 203
- Antenna Cable Specifications 204
- when calculating 206
- Securing Antenna Cables 207
- Mounting Multiple Antennas 208
- Environmental Specifications 209
- ENVELOPE 210
- NON-OPERATIONAL ONLY 210
- CONSTANT 39.1C DEW POINT 210
- Altitude 211
- Vibration 211
- Mechanical Shock 213
- Acoustic Noise 213
- RF Connector Durability 214
- Materials 214
- Shipping 214
- Temperature/Humidity 214
- Thermal Radiation 215
- Icing/Freezing Rain/Snow 216
- 7-40 80-99208-1 Rev. D 219
- 8 TROUBLESHOOTING 220
- ■ Both the AC power 221
- ■ DTR is not asserted on a 221
- ■ Command echoing has been 221
- ■ Make sure the baud rate in 221
- A GLOBALSTAR BACKGROUND 222
- Space Segment 223
- Ground Segment 223
- Coverage 223
- Globalstar Background 224
- 80-99208-1 Rev. D A-3 224
- Carriers 225
- 80-99208-1 Rev. D A-5 226
- A-6 80-99208-1 Rev. D 227
- RF CERTIFICATION/RESTRICTIONS 228
- B-2 80-99208-1 Rev. D 229
- RF Restrictions 230
- Pacemakers 231
- Hearing Aids 232
- Other Medical Devices 232
- B-6 80-99208-1 Rev. D 233
- C WARRANTY 234
- C-2 80-99208-1 Rev. D 235
- D PRODUCT SUPPORT 236
- Order Fulfillment Information 237
- Website Information 238
- Contact information 239
- Product Support 240
- 80-99208-1 Rev. D D-5 240
- D-6 80-99208-1 Rev. D 241
- E SPECIFICATION SUMMARY 242
- E-2 80-99208-1 Rev. D 243
- [1] q = 0 is zenith 245
- [3] at Tsky = 200 K 245
- 80-99208-1 Rev. D Index-1 246
- Index-2 80-99208-1 Rev. D 247
- 80-99208-1 Rev. D Index-3 248
- Index-4 80-99208-1 Rev. D 249
- 80-99208-1 Rev. D Index-5 250
- Index-6 80-99208-1 Rev. D 251
- 80-99208-1 Rev. D Index-7 252
- Index-8 80-99208-1 Rev. D 253
- 80-99208-1 Rev. D Index-9 254
- Index-10 80-99208-1 Rev. D 255
- 80-99208-1 Rev. D Index-11 256
- Index-12 80-99208-1 Rev. D 257
- 80-99208-1 Rev. D Index-13 258
- Index-14 80-99208-1 Rev. D 259
- 80-99208-1 Rev. D Index-15 260
- Index-16 80-99208-1 Rev. D 261
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