APRS Digipeatersoftware DIGI_NED
-
Bookmark This site

BayCom-USCC-Card


The connections needed for the USCC card can be found in its documentation. Here I will only supply the numbering given to the ports and the default setting of the modem clock supply and baudrate:

Port SCC
Modem-ClockBaud Modem
SCC0 1ASoftclock 1200 AFSK (TCM3105)
SCC1 1BSoftclock 1200 AFSK (AM7911)
SCC2 2ADisable9600 External
SCC3 2BDF9IC-Modem9600 FSK (DF9IC)

The second SCC controller (Z8530) does not have to be present when the appropriate channels are not used, the first controller is mandatory. Therefore you can also use the 9k6 USCC card (option -PUSCC:::31).

The following table shows the exact clock source for receive (RxC) and transmit (TxC) and also the used encoding mode. The column contains the number to be supplied with the -PUSCC option, the last column shows the equivalent values for the BayCom parameters CARRIER and HENNING. Soft-DCD and Duplex-Operation can be switched on by means of the commands @C and @D.

-P
RxC TxC Mode CARRIER HENNING
1Softclock DPLL BRGNRZI
0/1
0
2
Hardclock DPLL RTxCNRZI
2-4
0
3
DF9IC-ModemTRxCRTxCNRZ
1-4
1

Embedded inside the SCC-Controller:
  • BRG Baud rate generator
  • DPLL Digital PLL
Connections of the SCC-Controller
  • RTxC
  • TRxC

powered by cmsimple.dk | cmsimple-styles.com template modified by PE1MEW