Radioddity Extended manual for Radioddity DB25-D, DB40-D & GD-88 v3.0
© Radioddity 2023 page 215 of 252
8. Optional, set ‘RX QT/DQT’ and ‘TX QT/DQT’ for any CTCSS or DCS encoding that
might be required for connection to the other station. If unsure, set both
parameters to ‘Off’ for not using any CTCSS/DCS decoding and encoding. That
will at least allow you to hear the other station, regardless of its CTCSS/DCS
settings.
Notes: Within a future version of the CPS the names of those two parameters will
be changed to ‘RX CTCSS/DCS’ and ‘TX CTCSS/DCS’.
9. Set APRS to ‘Off’ for now
Write your settings to the radio. Do not forget to switch to Zone ‘simplex FM’ and
select Channel ‘FM simplex’ at your Radioddity DB25-D, DB40-D or GD-88. Now
you are ready for your very first simplex analog FM QSO.
16.2 Duplex analog FM operation with a local analog FM-repeater
First, collect all information that is available for your local FM repeater that you
want to connect to. Best source for such is to check with your local HAM radio club
or some other local ham operator.
You will need the following details:
• TX frequency of repeater (becomes your RX frequency of your radio)
• RX frequency of repeater (becomes your TX frequency of your radio)
• Any CTCSS or DCS encoding or decoding required?
• Pilot tone required? Which frequency (e.g., 1750 Hz)?
In order to setup the radio for operating your local FM repeater, follow these
steps:
1. Add a new zone via ‘Zone[Channel]’ → ‘+Add’ and give it a ‘Zone Name’ of
‘duplex FM’. The new zone will be created and will already contain a channel of
either ‘CH mode’ being ‘analog’ or ‘digital’.
2. Setup the channel for ‘CH mode’ being ‘Analog’.
3. Give the channel a ‘CH Name’ of some name, e.g., ‘DB0OHL rpt’ (with DB0OHL
being the call sign of your local repeater).
4. Set the ‘RX Freq’ equal to the TX-frequency of your local repeater.
5. Set the ‘TX Freq’ equal to the RX-frequency of your coal repeater.
6. Set the output ‘Power’ to ‘Low’ if the local repeater is close to your location. If
the local repeater is some miles away, set it to ‘High’.
7. Set ‘Scan List’ to ‘off’ in order to avoid unexpected behavior.
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