La NW Digital Radio e John K7VE, stanno progettando un controller che permetterà di utilizzare il DR-1X sia in Fusion e Analogico, che in D-STAR. Questo controller si chiamerà UDRC. Nel frattempo K7VE ci spiega che è possibile collegare un modem GMSK D-STAR al DR-1X sfruttando la porta I/O.

Preparare il ripetitore DR-1X

Settarlo in modo che sia in modalità FIX FM in RX e TX	Abilitare la funzione REMOTE

Il Connettore I/O del DR-1X

You will need to obtain a maleDB-15 HDplug and cover. If you are just prototyping and don’t want to solder up a connector, I recommend obtaining a breakout board.  I use a Winford EngineeringDB15HD Model (Male) with aM-F patch cable to go to the repeater. (Do not use a VGA cable, the lines must be straight through.)

The pins used are:

Pin	Function
1	Remote Control Enable
2	PTT
5	Ground
6	Tone / GMSK In
8	Disc / GMSK Out
10	Ground
11	Ext Port 1

Modalità solo D-STAR

DR-1X Pin	URI Pin	Mini Din-6
1	20	2
2	Ext/GPIO	3
5	DR-1X (1)	DR-1X (1)
6	22	4
8	21	1
10	DR-1X (11)	DR-1X (11)
11	DR-1X (10)	DR-1X (10)

• Tie Pin 1 and GMSK (Audio – Pin 20 on URI, Pin 2 on Mini Din-6) ground to Pin 5.  This locks the repeater controller out and puts full control to the D-STAR modem/node adapter as the repeater controller.
• Tie Pin 2 PTT to the PTT control (pull to ground) on your D-STAR modem/node adapter (URI will use an external device like a GPIO on a Raspberry Pi, Pin 3 Mini Din-6)
• Tie Pin 6 GMSK IN to GMSK OUT from your D-STAR modem/node adapter (Pin 22 on a URI, Pin 4 Mini Din-6).
• Tie Pin 8 DISC OUT to GMSK IN to your D-STAR modem/node adapter (Pin 21 on a URI, Pin 1 Min Din-6).
• Tie Pin 11 to Pin 10.  This tells the repeater to stay in FM in / FM out mode full time.

Modalità D-STAR/Analogica

DR-1X Pin	URI Pin	Mini Din-6
1	Ext/GPIO	3
2	Ext/GPIO	3
5	20	2
6	22	4
8	21	1
10	DR-1X (11)	DR-1X (11)
11	DR-1X (10)	DR-1X (10)

• Tie Pin 1 Remote Control and 2 PTT to the PTT control (pull to ground) on your D-STAR modem/node adapter (URI will use an external device like a GPIO on a Raspberry Pi, Pin 3 Mini Din-6). This lets the Yaesu repeater controller handle analog when the PTT is high and puts full control to the D-STAR modem/node adapter as the repeater controller when the PTT is low.  Set a CTCSS tone in and out on the Yaesu controller but do not use 100 hz as the GMSK signal will periodically false the tone decoder.
• Tie Pin 5 and GMSK (Audio – Pin 20 on URI, Pin 2 on Mini Din-6) ground.
• Tie Pin 6 GMSK IN to GMSK OUT from your D-STAR modem/node adapter (Pin 22 on a URI, Pin 4 Mini Din-6).
• Tie Pin 8 DISC OUT to GMSK IN to your D-STAR modem/node adapter (Pin 21 on a URI, Pin 1 Min Din-6).
• Tie Pin 11 to Pin 10.  This tells the repeater to stay in FM in / FM out mode full time.