Multitech MultiModem Cell MTCBA-C1 User's Guide Page 114
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Chapter 19 – Antenna Commands
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C) 114
Notes:
1. If periodic antenna diagnostic checking is enabled and the modem enters sleep mode, it will
awaken at the intervals specified to perform the antenna checks. Disable periodic checking if
you do not want to wake from sleep for periodic checking.
2. If a failure (open or short) of the secondary antenna is detected and the antenna is powered,
we recommend that you disable power to the antenna and suspend GPS operation while the
fault condition persists. This will reduce power consumption of the modem while the antenna
is not usable.
3. For hardware versions 2.1 and later, the diagnostic status of the secondary antenna cannot
be determined in the un-powered state (AT+WANT=0) and will report NORMAL.
4. If the hardware version is 2.1 or later and a shorted condition occurs on the secondary
antenna in the powered state, the hardware will automatically disable power to the secondary
antenna to prevent damage to the modem. In this case, you must re-issue AT+WANT=1 to
re-enable power to the secondary antenna.
Configure Antenna Diagnostics ADC +WANTADC
Description: By default, the antenna diagnostics feature uses an internal ADC for reading the primary and
secondary antenna voltage divider. A primary CDMA antenna design that does not use the
modem’s primary antenna connection can still take advantage of antenna diagnostics. Using the
AT+WANTADC command, the modem can be instructed to monitor one of the external ADC’s to
read the voltage divider network of the external antenna rather than the internal ADC.
The AT+WANTADC setting is persistent across power downs.
Syntax: Command Syntax: AT+WANTADC=<sel>
Command Possible Responses
AT+WANTADC=1
Note: Selects ADC_0 to read the primary antenna voltage
divider
OK
AT+WANTADC
Note: Sets the internal ADC to read the primary antenna voltage
divider
OK
AT+WANTADC=0
Note: Sets the internal ADC to read the primary antenna voltage
divider
OK
AT+WANTADC?
Note: Display the ADC used to read the primary antenna voltage
divider
+WANTADC: 0
OK
Values: <sel>
0 Use the internal ADC to read the primary antenna voltage divider
1 Use ADC_0 to read the primary antenna voltage divider. ADC_0 is available on the
system connector.
2 Use ADC_1 to read the primary antenna voltage divider. ADC_1 is available on the
system connector.
- CDMA-C1 AT Commands 1
- Contents 3
- Chapter 1 – Introduction 7
- Chapter 2 – AT Commands 8
- Overview 8
- Command Types 9
- Command Format and Syntax 9
- Input Command Syntax 10
- Other Syntax 10
- Output Response Syntax 10
- Parameter Defaults 10
- Unsolicited Message Syntax 11
- Attention AT 12
- Repeat Last Command A/ 12
- Echo E 12
- Bits +WUSLMSK 13
- Chapter 4 – Identification 15
- Commands 15
- Chapter 5 – Query Commands 17
- Chapter 6 – Global 18
- Configuration Commands 18
- Save Configuration &W 19
- Chapter 7 – Status Commands 20
- Chapter 8 – Communication 26
- Set Diagnostic Port +WDMX 27
- Set DCD Signal &C 27
- Set DTR Signal &D 28
- Set DSR Signal &S 28
- Automatic Answer S0 30
- Command Edit Character S5 31
- Chapter 9 – Call Control 33
- Hang-Up Command H 34
- Answer a Call A 34
- Incoming Call +RING 35
- Emergency Mode +WSOS 37
- Call Answered +WANS 38
- Call Connected +WCNT 38
- Call Ended +WEND 39
- Call Originated +WORG 40
- CPHS Command +CPHS 40
- Call Forwarding +CCFC 42
- Send DTMF Tones +VTS 44
- Chapter 10 – Network Service 45
- Signal Quality +CSQ 46
- Band Preference +WBND 49
- Service Indication +WSRV 50
- Roam Preference +WRMP 50
- Default Cell Band +WDCB 51
- Roaming Indication +WROM 51
- Chapter 11 – Provisioning 54
- Control Commands 54
- Excess SPC Failures +WLCK 55
- Download PRL +DPRL 56
- Commit Changes +WCMT 58
- Set IMSI +WIMI 58
- Slot Cycle Index +WSCI 60
- SID and NID +WSID 60
- Chapter 12 – OTASP / OTAPA 61
- Commit Successful +WOTC 62
- SPL Unlocked +WOTS 62
- NAM Download OK +WOTN 62
- MDM Download OK +WOTM 62
- IMSI Download OK +WOTI 63
- PRL Download OK +WOTP 63
- Chapter 14 – Short Message 70
- Service Control Commands 70
- Read Message +CMGR 71
- List Message +CMGL 72
- Delete Message +CMGD 73
- Chapter 15 – Audio Commands 79
- Microphone Gain +VGT 81
- Speaker Gain Control +VGR 82
- Digital Gain Receive +WDGR 84
- Echo Cancellation +ECHO 86
- Speaker Driver Gain +WSDG 87
- Audio Loopback &T 88
- Chapter 16 – Data Commands 89
- R-SCH Selection $QCMIP 90
- MIP Selection $QCMIPP 91
- Chapter 17 – TCP APP AT 98
- Chapter 18 – Sleep Commands 107
- Builds) 111
- Chapter 19 – Antenna 111
- Commands (Not for IP and GPS 111
- +WANTPOLL 113
- Auxiliary GPS Power +WANT 115
- Scenarios 118
- Call Processing 119
- Sending Binary Data 120
- TCP Socket Examples 121
- TCP Server Example 122
- ATZ, and AT&F 123
- Chapter 22 – CDMA 128
- Terminology and Acronyms 128
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