Rev 1.7 (April 2018) 7
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DLP Design, Inc.
6.5.2
Press the RESET button on the transceiver to be paired. Immediately after the RESET button
is released, the DLP-RFS1280ACT will transmit a packet containing its ID. This ID is received by the
transceiver that is waiting. The ID is presented on the LCD and also stored to permanent memory so
that it automatically loads after the next reset or power cycle. (This pairing process can be repeated if
different transceivers need to be paired.)
6.6
RANGE TESTING
6.6.1
Press Button 1 on each transceiver until LORA Mode is shown on the LCD display of both
platforms.
6.6.2
On Transceiver 1, press and hold Button 5. While holding Button 5, press and release
RESET. Continue to hold Button 5 until you hear a beep, then release Button 5. Press and release
RESET on Transceiver 2. At this point Transceiver 1 will be transmitting packets to Transceiver 2,
which will beep with each received packet.
- Be sure to turn the volume up (blue knob next to the speaker) if you cannot hear the beep.
- A Range Test can be performed using any of three modulation modes: LORA, GFSK or FLRC.
6.7 PUSH TO TALK (WALKIE-TALKIE MODE)
The Push To Talk function is a rudimentary demonstration of packetizing and transmitting audio in
LORA Mode using Spreading Factor 6. This demonstration is not intended to provide high audio
quality.
6.7.1
Press Button 1 on each transceiver until LORA mode is shown on the LCD display of both
platforms.
6.7.2
Press Button 4 (labeled “PTT”), and speak into the microphone. Maintain a distance of about
12 inches between your mouth and the microphone to avoid overdriving the microphone pre-amp
circuit. Acquired audio will be reproduced on the paired transceiver. Make sure the volume control
(blue knob) is turned up.
- You may have to reset both transceivers to initiate this demonstration.
6.8 RANGING
6.8.1
Press Button 1 on each transceiver until LORA mode is shown on the LCD display of both
platforms.
6.8.2
On Transceiver 1, press and hold Button 6. While holding Button 6, press and release RESET.
Continue to hold Button 6 until you hear a beep, then release Button 6. At this point Transceiver 1
will be performing the Ranging function with Transceiver 2, displaying the range in both feet and
meters. Note that the most accurate results are obtained by using the whip antenna.