Frequently Asked Questions; Hardware; Dsrc - Savari MW-1000 User Manual

11.2 Frequently Asked Questions

Hardware

1. How can I check the disk utilization in my MW-1000?

Login into your MW-1000 terminal,

Try df command to check out the disk free-space details:
> df -h

The command gives stats of total memory, used-space, available-space.
2. Where can I check my device version details?
MW-1000 software version is mentioned in SOBOS banner as SW_Release. Ex: "SW_Release:
MW1000-5.7.1.2".
Alternatively you can use the following command in MW-1000 terminal for viewing SOBOS
banner:
>cat /etc/banner
3. Can I use a power-supply other than 10W prescribed by Savari?
Yes, you can use a power-supply other than the recommended 10W standard power-supply.
Refer to section 3.1 'Hardware and Software Specifications' for power requirements.

DSRC

4. What is the maximum DSRC antenna range?
Theoretical range of DSRC is 1000 meters (0.62 miles). But a variety of configuration and
environmental factors can drastically bring down the DSRC range to less than 100 meters!
Sample list of factors affecting DSRC range:

Antenna power (configured in your MW/SW configuration file)

DSRC Antenna type and gain (Antenna hardware spec)

Position of the antenna on the vehicle

Vehicular-density (MW-1000 automatically scales down power to avoid network-
congestion)

Environment factors like - High-rise buildings obstructing the line-of-sight(LOS)
5. How can I configure my DSRC interface to continuous/alternating modes?
MW-1000 doesn't allow users to update DSRC interface to continuous/alternating modes.
Refer to section 5.3 'Default Configuration' for default values of DSRC interfaces (ath0, ath1)
6. How do I configure the applications priority order for DSRC antenna sharing?
Refer to section 6.4 'MW-1000™ Messaging layer Configuration' for updating configuration
parameters and their accepted values. List of application configuration parameters for updating
priorities:

'SPATMAPPriority' - For Spat-Map application.

'TIMPriority' - For TIM application.
MW-1000™ User Guide
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