MTCBA-C1-N2 Multi-Tech Systems, MTCBA-C1-N2 Datasheet - Page 116
![no-image](/images/no-image-200.jpg)
MTCBA-C1-N2
Manufacturer Part Number
MTCBA-C1-N2
Description
MODEM CDMA RS232 DUAL
Manufacturer
Multi-Tech Systems
Series
MultiModem® Cellr
Datasheets
1.MTCBA-C1-N16.pdf
(135 pages)
2.MTCBA-C1-N16.pdf
(2 pages)
3.MTCBA-C1-N16.pdf
(29 pages)
Specifications of MTCBA-C1-N2
Function
Transceiver, CDMA, Modem
Modulation Or Protocol
CDMA2000
Frequency
800MHz, 1.9GHz
Applications
Sprint Networks (USA)
Interface
RS-232
Data Rate - Maximum
153.6 kbps
Voltage - Supply
9 V ~ 32 V
Package / Case
Module
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
881-1147
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MTCBA-C1-N2
Manufacturer:
Multi-Tech Systems
Quantity:
135
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Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C)
For Hardware Versions Earlier than 2.1
Set Secondary Antenna Diagnostic Limits
Set Primary Antenna Diagnostic Limits
Set Secondary Antenna Diagnostic Limits
This example shows how to calculate and specify antenna diagnostic low and high limit values for
hardware versions earlier than 2.1. The AT+ADC command is used to read the value of the
antenna voltage divider so that the limits can be determined. Please note that this is an example
only. Your antenna characteristics may be different.
Command
Attach active GPS antenna. Enable power to the antenna.
AT+WANT=1<cr>
AT+ADC=7<cr>
Request the secondary antenna ADC voltage.
Assume a +/- 5% variance in antenna ADC reading.
Powered low limit = 200 – (.05 * 200) = 190
Powered high limit = 200 + (.05 * 200) = 210
AT+WANTLIM=1,2,0,255,190,210<cr>
Set secondary antenna diagnostic limits.
AT+WANTS<cr>
Check antenna diagnostic status.
Command
AT+WANTADC=0
Note: Enable primary antenna internal ADC as the source
Attach primary antenna.
AT+ADC=6<cr>
Request the primary antenna ADC voltage.
Assume a +/- 5% variance in antenna ADC reading.
Low limit = 130 – (.05 * 130) = 123
Open limit = 130 + (.05 * 130) = 137
AT+WANTLIM=1,1,123,137<cr>
Set primary antenna diagnostic limits.
AT+WANTS<cr>
Check antenna diagnostic status.
Attach active GPS antenna. Enable power to the antenna.
AT+WANT=1<cr>
AT+ADC=7<cr>
Request the secondary antenna ADC voltage.
Assume a +/- 5% variance in antenna ADC reading.
Powered low limit = 200 – (.05 * 200) = 190
Powered high limit = 200 + (.05 * 200) = 210
AT+WANT=2<cr>
Enable non-powered testing of the antenna.
of the primary antenna diagnostic reading.
Response
OK
+ADC: 130
OK
OK
+WANTS: 1,1
OK
OK
+ADC: 200
OK
OK
Chapter 19 – Antenna Commands
Response
OK
+ADC: 200
OK
OK
+WANTS: 1,1
OK
116
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