TM8260 Installation and Programming Guide
Programming a Dual-Radio System
41
© Tait Limited
October 2014
Conv Key Settings
Conventional > Conv Key
Settings form
Dual body functionality such as dual transmit and
receive, and changing the foreground radio, can
only be accessed via function keys.
Add the Dual Body Mode and Single Body Mode
actions to separate keys, or Dual/Single Body
Mode to a single key.
Add the Switch Active Radio action to a different
function key.
Other Function Key Settings
and the Radio Menu
Conventional >
Conventional Menu form
The radio’s function key settings and menu must
be the same for all devices in the system.
Left Selection Key and
Scroll Keys
Conventional > Conv Key
Settings form
If options are programmed for the left selection
key and/or scroll keys, they must be the same for
all devices in the system.
UI Preferences and
Conventional UI
Global > UI Preferences
form, and
Conventional >
Conventional UI form
UI preferences must be configured identically for
all devices in the system. For example,
backlighting, keypress tones, the RSSI icon, and
the default dialling type.
Programmable I/O
Programmable I/O form
All radio body I/O pins are supported, and all
actions are supported except the output F1 to F4
Key Status. The control head I/O pin (CH_GPIO1) is
limited to outputs only, and those outputs will
always reflect the foreground radio.
The following actions are dependant on the
current mode, and state of the active radio body.
External PTT 1 and 2
: The radio body that the
PTT is connected to will transmit, unless
transmission is invalid (for example, that radio is
the background radio in single-body mode).
Toggle F1 and F4 Key LED
: The function key LED
will reflect the state of the relevant I/O pin on the
foreground radio.
Radio Ready
: The radio at the background in
single-body mode is not considered ready, so will
not activate the output pin.
Note: A cross-band linking cable requires specific
programmable I/O settings for both radio bodies.
For more information, see
Trunked MPT
Trunked MPT settings are currently not supported
with TM8260 radio systems. Do not attempt to
program these fields or enable the optional
feature for MPT 1327 Trunking.
Table 4.1
Recommended dual-radio settings (Continued)
Field/Feature
Location
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