User's Manual

FreeWave Technologies Spread Spectrum Transceiver User Manual

900 MHz and 2.4 GHz

V5.0S

(5) Point-to-Point Repeater

FreeWave allows the use of up to four repeaters in a point to point

communications link, significantly extending the operating range. When

designated as a repeater a Transceiver behaves as a pass-through link. All

settings for the call book, baud rate, and radio transmission characteristics are

disabled. A repeater will connect with any master which calls it (the repeater must

still be set up in the master's call book).

The use of one repeater in a communications link will reduce the top data

throughput available when compared to a direct master to slave link (generally on

the order of 50%). This impact is generally noticed only when using the

Transceivers at 115.2 KBaud. The throughput does not decrease further if two or

more repeaters are used.

For more information of programming point to point links using one or more

repeaters please refer to Entering or Modifying numbers in the Call Book.

(6) Point-to-Point Slave/Master Switchable

Mode 6 is a versatile option which allows the transceiver to be controlled entirely

through software commands. When in mode 6, a number of key parameters in

FreeWave's user interface may be changed either directly (as if using the

Windows Terminal program) or through the use of script files. In addition, when

the transceiver is in mode 6 and not calling a slave it will be a slave itself and

accept any appropriate calls from other transceivers.

In mode 6:

♦ This mode only works through the data port with diagnostics turned off.

♦ The transceiver remains in slave mode until called by another Transceiver in

its Call Book or instructed to call another transceiver through an AT command.

The master will disconnect when DTR goes low.

♦ The user may change settings in the user interface without using the setup

button (this may be of particular value if the transceiver is not in an easily

accessible location).

♦ Predetermined script files may be used which allow any of the Transceiver's

settings to be changed upon execution of that file. This, in turn, allows the

user to establish push button command sets which will instruct the Transceiver

to call a predetermined slave.

Note: All AT commands issued to the transceiver in Mode 6 must be in ALL

CAPS.