User's Manual

Table Of Contents
MX800 Transceiver Options
5. Install the DCS daughter board into the socket for IC25 ensuring that the
daughter board has correct orientation with respect to pin numbering.
6. Install the 3x5mm screw (removed from step3) to secure the DCS
daughter board.
MX800 Controller Setup:
1. The DCS option is activated in the MXTOOLS ‘Configuration’ heading,
within the ‘Hardware’ folder with ‘DCS Option Installed’ selected.
2. The RF channels that are required to be DCS controlled should be
programmed with the required DCS code in the TX and/or RX channel
fields.
MX800 Testing:
1. If the MX800 had a CTCSS Option previously fitted, test the radio for
correct operation of the DCS Option in both the Transmit and Receive
modes.
2. If the Option T03 is not replacing a CTCSS Option then a ‘Peak
Deviation and Modulation Balance Alignment’ as per Section 5.1.9 of the
Technical manual will be necessary. This alignment is to be performed
without the CTCSS/DCS frequencies programmed into the alignment
channel, as the subtone levels will give a false indication of the peak
deviation levels.
© SPECTRA ENGINEERING 2008 Revision 4.3.1B
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