User Manual Part 1

CHAPTER 3
PROGRAMMING
ESTEEM FEATURES
Revised: 15 Oct 03 3-1 EST P/N AA104
Listed in this chapter are the major ESTeem features and programming examples on how to use them. These features are
individual building blocks to solve your application needs. Remember your particular application may require one or more of
these features enabled.
DIGI-REPEATING
The Repeater feature allows an ESTeem to relay its respective transmission or packet through a maximum of three ESTeems to
increase the operating range of the unit. Any ESTeem in your radio network can function as a repeater for any other ESTeem.
This is independent of the fact that the ESTeem being used as a repeater is linked or connected to another node, therefore an
ESTeem can function as a repeater, operational node, or both at the same time. The data that is digi-repeated through ESTeem
will not output through the repeating ESTeem’s RS-232C port.
To specify one or more ESTeems as repeaters, the CONNECT command has been expanded to except up to three added
addresses as follows:
CONN r1,r2,r3,da
r1 = Address (1 to 254) of first ESTeem repeater.
r2 = Address (1 to 254) of second ESTeem repeater.
r3 = Address (1 to 254) of third ESTeem repeater.
Da = Address (1 to 255) of destination ESTeem.
Note: Address 255 is used for Global.
When transmitting packets through other ESTeems, the source ESTeem will automatically adjust it's FRACK time to allow
additional time for the packet to reach its destination and for the returned acknowledgment. Frack time takes into account the
packet size and the number of repeaters specified. The ACK still comes from the destination ESTeem, not the first or any
repeater.
For testing purposes, you can loop back a connection to yourself by placing your source address in the destination address of
the repeater string. Any data transmitted will repeat through the repeater address and display back on the screen.
Example:
CONN r1,Sa
r1 = Address (1 to 254) of first ESTeem repeater.
Sa = Address of local ESTeem.
Any ESTeem command in this manual that uses an address string can be configured to use the Digi-repeating feature.
Example:
SETC r1,r2,r3,da