User's Manual

RFD900x User Manual V2.0
www.rfdesign.com.au
14
8/1/2019
9 Frequently asked questions (FAQ)
9.1 How many antennas do I need to use?
One is the minimum. Two is recommended.
9.2 How do I connect the FTDI cable to the modem?
The black cable of the FTDI (pin 1) should connect to pin 1 on the modem as shown in Figure 10-1.
Figure 10-1: An FTDI cable connected to the RFD900x modem
9.3 What do I need to upload the firmware or to change the modem
configuration?
Download the latest firmware (see “Useful Links”). Download the RFD900x Modem Tools (see “Useful
Links”). Connect the FTDI cable to the modem and to a computer. Use the RFD900x Modem Tools to
upload the latest firmware or to change the modem configuration (see “RFD900x Modem Tools User
Manual”).
9.4 I upgraded to asynchronous firmware and the modems don't connect
anymore?
The default setting for a modem is to have a NODEID set to 1 and DESTID set to 2. As communication
is addressed NODEID must be different for all units and DESTID will set the modems to connect to.
9.5 How do I configure 2 base stations and one Airborne platform with 3
modems? (Asynchronous)
Set the Airborne platform as follows: