8 TROUBLESHOOTING

If you are having a problem with a QUALCOMM Globalstar GSP-1620 Satellite Data Modem, try the troubleshooting tips in Table 8-1. If that does not solve the problem, you can contact QUALCOMM Globalstar Customer Service, as described in Appendix D.

Table 8-1. Troubleshooting Modem Problems

Problem

Possible Solutions

 

 

AT$QCSTATUS command

■ The antenna is not properly

returns RSSI: 0

 

connected, or is not outside

-or-

 

with a clear view of the sky.

■

Antenna cables may be

DTE application determines,

 

crossed (that is, the modem

 

Rx cable may be connected

after a service alert, that

 

to the antenna Tx Transmit

there is no Globalstar signal.

 

connector, and vice versa).

-or-

 

Make sure modem Tx is

 

connected to the antenna Tx

 

 

Current consumption of the

 

connector and the modem Rx

 

is connected to the antenna

modem with antenna

 

 

Rx connector.

connected is lower by about

 

 

 

30mA.

 

 

 

 

AT$QCSTATUS command

■ The modem may not be

returns Registration: No

 

service-programmed

 

 

correctly. See

 

 

Service-Programming

 

 

Modems on page 3-1 and

 

 

consult your SP to make

 

 

sure you have the correct

 

 

service programming

 

 

values.

 

 

 

Upon attempting a

■

HyperTerminal is connected

connection, the SELF TEST

 

to the wrong COM port.

RESULT is not received within

■ The modem is not plugged in

a few seconds.

 

to a power source.

 

 

 

80-99208-1 Rev. D

8-1

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Qualcomm GSP-1620 specifications Troubleshooting Modem Problems, Problem Possible Solutions
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GSP-1620 specifications

Qualcomm GSP-1620 is a powerful, cutting-edge SoC (System on Chip) that is tailored for the demands of modern mobile and embedded applications. Designed to deliver high performance, energy efficiency, and advanced connectivity, the GSP-1620 stands out in the competitive landscape of processor solutions.

One of the main features of the GSP-1620 is its multi-core architecture, which facilitates simultaneous processing of multiple tasks. This architecture ensures enhanced multitasking capabilities, allowing devices to run complex applications smoothly without compromising performance. The GSP-1620 integrates Qualcomm's latest Kryo CPU technology, which optimizes performance while maintaining lower power consumption.

The GSP-1620 excels in graphics performance, powered by Adreno GPU technology. This integration enables rich visual experiences, making it ideal for gaming, augmented reality, and immersive multimedia applications. The GPU's capabilities allow for high frame rates and stunning graphics, ensuring that users enjoy a premium visual experience.

In terms of connectivity, the GSP-1620 supports advanced wireless technologies, including 5G, Wi-Fi 6, and Bluetooth 5. With these capabilities, users can expect ultra-fast data speeds, low latency, and improved networking performance. The integration of Qualcomm’s Snapdragon X55 modem enhances the SoC's capability to deliver seamless connectivity in various environments, whether indoors or outdoors.

Moreover, the GSP-1620 features cutting-edge AI and machine learning capabilities, enabled by Qualcomm’s Hexagon DSP technology. This allows for efficient processing of AI tasks, supporting functionalities such as voice recognition, image processing, and real-time translation. It makes the GSP-1620 suitable for applications in smart devices, automotive solutions, and industrial IoT.

Security is a priority in the design of the GSP-1620. The SoC incorporates hardware-based security features that protect sensitive data and applications, ensuring robust defense against cyber threats. This is vital for applications requiring high levels of security, such as mobile payments and confidential communications.

Lastly, the GSP-1620 is designed with scalability in mind. Its modular architecture allows manufacturers to customize the chipset according to specific needs, making it a versatile solution for a broad range of devices, from smartphones and tablets to wearables and embedded systems.

In summary, Qualcomm GSP-1620 combines high-performance processing, advanced graphics capabilities, sophisticated connectivity options, AI support, and robust security features. With these characteristics, it sets a new standard for mobile and embedded platforms, driving innovation in a variety of industries.
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