Understanding Interlocks; System Considerations - microHAM micro2R u2R User Manual

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Table of Contents

micro2R provides several forms of interlock and timing protection. When a radio is locked, micro2R

immediately disables PTT to the "locked" radio. PTT remains disabled as long as the condition that

generated the lock continues.

There are two locks:

Transmit interlock (or "SO2R mode")

●

Same Band lockout

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Transmit interlock: is enabled by selecting the SO2R mode check box on the SO2R tab. Transmit

interlock can be "first one wins" or "last one wins." If selected, simultaneous transmission on both

radios is not allowed. When not checked, the radios can transmit at the same time. This lock works

independently of any logging software.

Same Band Lockout: disables both radios if micro2R detects two radios on the same band. When the

same band lockout is activated transmission on both radios is immediately disabled. and the TX

AUTO LED will start flashing. Transmission will be enabled when one radio is moved to another

band.

NOTE: Same Band Lockout functions ONLY with logging software that provides BCD band data to

the ACC port of micro2R using microHAM protocol.

micro2R can be used with a wide variety of software applications. The capabilities of those packages will

have a large impact on the level of computing power needed to utilize micro2R.

DOS Applications: micro2R can be used as a traditional SO2R controller with DOS loggers like CT, TRlog

and NA. In this mode, micro2R requires a PC compatible computer running Windows 2000, 64 MB RAM,

CDROM, and USB 1.1 port for configuration purposes only. micro2R is controlled through the LPT input in

"classic" mode and the advanced features provided by microHAM Router are not available.

Windows Applications: When used with Windows based contest logging applications like CTWin, N1MM

Logger, Win-Test, and WriteLog or Windows based general logging applications like DXBase, DXLab Suite,

DX4WIN, Logger 32 and others, the microHAM control and interface application "microHAM Router" must

run along side the application program. Since both the logging programs and microHAM Router are real-

time applications, system performance will be dependent on both CPU speed and the amount of available

RAM.

While microHAM Router will run on slower computers, the minimum tested system is a 1.6 GHz Pentium IV,

Windows 2000, 512 MB RAM, CD-ROM, and USB 1.1 port. Whether Router can run as designed on slower

machines with less memory and leave enough resources for application programs has not been

determined. microHAM Router is not supported on any 16 bit version of Windows (95, 98, ME, SE).

In order to provide sufficient performance for simultaneous operation of microHAM Router, a logging

application, Internet connectivity and other accessory programs, the recommended system is a 2 GHz PC

compatible computer with Windows XP Home or later, 1 GB RAM, CD-ROM, root USB 2.0 port, and two

transceivers with supported CAT protocols. A parallel port is desirable for "classic" interface applications.