ft635ule_eng (21.06.2012)
- 8 -
- 9 -
ft635ule _eng(21.06.2012)
Kompetent für Elektroniksysteme
Kompetent für Elektroniksysteme
All AF pathways are switched wear-free with analog switches. The radio in-and outputs
(except discriminator input and CTCSS output) are galvanically decoupled using a
transformer.
The level of the incoming telephone signal is adjusted in register 620. The AF signal is
transferred from here to the the radio output by means of the output level adjustment. Also
see section Service program/adjustment.
The AF signals of the radio go through an input level adjustment. The discriminator input of
the UELE also has an electronic input level adjustment. Also see section Service program/
adjustment. The level of the outgoing telephone signal is adjusted in register 621.
Signalings of the radio (e.g. 5-tone sequences) which are processed in the UELE, can
optionally be connected to the normal RX output or to the discriminator output of the two-
way radio. This is is programmed in the EEPROM-register 080:
Reg. Function
080 6.digit tone sequence decoder
7.digit FFSK decoder
8.digit CTCSS (subtone) decoder (optionally available)
For all 3 digits the following applies:
1 = decoder at the RX input (radio in) of the UELE
2 = decoder at the discriminator input (discriminator in) of the UELE
To program the EEPROMs please read the section Programing mode EEPROM. Ex factory
the tone sequence decoder and the FFSK decoder are connected to „radio in“ and the
CTCSS decoder is connected to „discriminator in“ .
The FT635UELE has 2 independent DTMF decoders. Therefore a directional switch-
over, as with the FT633UELE, is no longer necessary. Now it is possible to wait for an
ending call from the radio and to decode new mobile IDs from the telephone. The following
assignments of the progammable values to the DTMF tones apply in all registers in which
DTMF tones are programmed:
programmed values:
0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F
DTMF tone:
0,1,2,3,4,5,6,7,8,9,A,B,C,D,*,#
For both directions the DTMF signals have a delete key and an end key . These keys can
be configured individually. Ex factory '*' is the delete key and '#' is the end key. By using
the delete key the complete telephone number is deleted and the entry begins anew. By
using the end key the input is finished and the call is started. It is necessary to use the
end key when dialing via DTMF from the radio.
AF-signaling pathways
AFsignals (radio to telephone)
DTMF
AF-signals (telephone to radio)
