Functions:
Frequency range from 26,695MHz to 27,325MHz (26,695MHz to 27,965MHz)
Step Up and Step Down
Scan Up and Scan Down
Dual Watch
Repeater function (Split)
2 Memory Bank with 100 memories
System Requirements:
IBM PC compatible
Windows 16/32 bit and Windows NT operating system
1 MB of RAM, 1 MB of free disk space
DX2547 Software
Galaxy DX2547 CB-Radio
Price:
Few components
1 pcs. 25-Pin D-SUB Connector
1 pcs. NULL-Modem Cable
The connection to Printer port.
Install a 25-pin D-SUB Male connector on the radios bottom cover, and use
a NullModem cable to the computers printer port.
See Radio interfacing to Printer Port for more
information about using PrinterPort.
| Pin | PrinterPort | Direction | Usage | Connection to: | Active H/L |
|---|---|---|---|---|---|
| 2 | Data 0 | Out to radio | RCI-8719 pin 16 | HIGH | |
| 3 | Data 1 | Out to radio | RCI-8719 pin 15 | HIGH | |
| 4 | Data 2 | Out to radio | RCI-8719 pin 14 | HIGH | |
| 5 | Data 3 | Out to radio | RCI-8719 pin 13 | HIGH | |
| 6 | Data 4 | Out to radio | RCI-8719 pin 12 | HIGH | |
| 7 | Data 5 | Out to radio | RCI-8719 pin 11 | HIGH | |
| 8 | Data 6 | Out to radio | MB-8719 pin 10 | HIGH | |
| 10 | ACK | In from radio | PTT Switch | Microphone connector Pin 5 | LOW |
| 11 | Busy | In from radio | Squelch Control | Squelch circuit | LOW |
| 18 | Ground | Ground | RCI-8719 pin 18 |
| Before modification | After modification |
|---|---|
 To protect the PrinterPort: Cut the trace to RCI-8719 pin 9 to 16 |
 and insert 6 pcs. 4,7kW resistors across the cutted traces. |
| Connection to the PrinterPort | Squelch circuit |
|---|---|
 |
To use the Scan function you need connection to the Squelch circuit. Connect PrinterPort pin 11 to IC1 pin 8. Use a 4,4kohm resistor to protect the PrinterPort. Use also a 1N4148 or similar diode to protect the input from the PTT-Switch. |
Change RCI-8719 with MB-8719.
If pin 10 is connected, cut the trace and insert 4,7kohm resistors
across.
Connect PrinterPort pin 8 to MB8719 pin 10.
Go to Setup and click on MB8719
Software: