User's Manual

Table Of Contents

MReX Transceiver User Manual v1.92 Firmware

Store Forward Commands

For the MReX this is an optional feature that by default is not supplied.

Store forward operation is when the unit is used to listen to transmissions in the area, decode the

messages and retransmit again to provide greater coverage than would normally be possible.

Note: In order to forward messages the decoded message CAP codes must fall within the con-

figured CAP ranges.

*STORE_FWD

Configures the store forward operation, this command uses 2 parameters as follows:

*STORE_FWD=XX,YY<CR>

Where:

XX is the Store Forward Operation

YY is the Duplicate Reject Operation

Store Forward Operation:

Setting to 0 disables the feature. The non zero value set is the delay in 100ms steps after each trans-

mission. This delay allows time for any downstream forwarding equipment to clear the message.

Max store forward delay is 24 seconds. All messages are immediately queued for transmission, and

up to 5 messages may be retransmitted after the store forward delay.

Duplicate Reject Operation:

Setting to 0 disables the feature, otherwise this is the number of seconds to reject identical messages

for up to 240 seconds. Duplicate rejection operates only on messages decoded for forwarding. This

means that receiving of duplicate messages is not prevented (nor the transmission of same messages

resulting from a protocol command), but when used as part of a simple store forward system re-

queueing of messages can be controlled. Duplicate reject only tests the previous 5 messages in the

historic transmit queue.

For example, to configure to use a 2 second clearing delay after each transmission and 10 second

message duplicate reject:

*STORE_FWD=20,10<CR>