Radioddity DB25-D - Private Call Type and RX Time Slot

Radioddity Extended manual for Radioddity DB25-D, DB40-D & GD-88 v3.0
© Radioddity 2023 page 178 of 252
13.12 Prompt
The radio will not respond when it receives an alarm call. The call prompt is
requesting the receiver either to call back the transmitter when they can
communicate. It is only available in the channel to receive the call tone. This option
is based per channel.
Options: Off Disable alarm call prompt
On Enable alarm call prompt
Recommended: Off
13.13 PCT (Private Call Type)
This function sets the Private Call Type of the current channel either to PATCS
(Press And Talk Call Setup) or OACSU (Off Air Call Set Up).
Options: PATCS There is no need to give the radio a respond, they can send
the voice to the radio directly.
OACSU It needs to give the radio a respond, then it will send the
voice to the radio.
Default: PATCS
Notes: This parameter is only available in digital mode.
13.14 RX TS
The Radioddity DB25-D, DB40-D and GD-88 are all based on TDMA technology and
can divide a 12.5kHz channel into two alternate TimeSlots.
When operating a digital repeater or duplex-hotspot with the Radioddity DB25-D,
DB40-D or GD-88, normally the digital repeater does have a TX-frequency
different to its RX-frequency and uses DMR Tier 2 for transmission. DMR Tier 2
makes uses of the TimeSlot technique, allowing two separate information
channels to be transmitted using the very same physical channel. Normally the
TimeSlots (TS) for TX and RX must be set to the very same TimeSlot, either 1 or 2.
Whereas, when operating a simplex station (such as a simplex hotspot), normally,
DMR Tier 1 is in place. DMR Tier 1 does not make use of those TimeSlots.
Whenever TX and TX-frequency are identical (which is the case in simplex mode),
a third option ‘On’ (for direct simplex mode) becomes available for such channel.
Options: Slot 1 Use DMR Tier 2, TimeSlot 1 for RX
Slot 2 Use DMR Tier 2, TimeSlot 2 for RX
On Use DMR Tier 1 for RX without any TimeSlots
Default: On
Notes: This parameter is only available in digital mode.