Functions:
Frequency range from 24,255MHz to 29,365MHz with 13.560MHz off-set X-tals.
Frequency range from 24,705MHz to 29,815MHz with 14.010MHz off-set X-tals.
Frequency range from 25,155MHz to 30,265MHz with 14.460MHz off-set X-tals.
Frequency range from 26,165MHz to 31,255MHz with 15,450MHz off-set X-tals.
5kHz and 10kHz Frequency Step
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
EPT360014B Software
CB-Radio with EPT360014B Board
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.
Modification with the PLL on the main board
Pin | PrinterPort | Direction | Usage | Connection to: | Active H/L |
---|---|---|---|---|---|
1 | Data 8 | Out to radio | MC145106 pin 9 | HIGH | |
2 | Data 0 | Out to radio | MC145106 pin 17 | HIGH | |
3 | Data 1 | Out to radio | MC145106 pin 16 | HIGH | |
4 | Data 2 | Out to radio | MC145106 pin 15 | HIGH | |
5 | Data 3 | Out to radio | MC145106 pin 14 | HIGH | |
6 | Data 4 | Out to radio | MC145106 pin 13 | HIGH | |
7 | Data 5 | Out to radio | MC145106 pin 12 | HIGH | |
8 | Data 6 | Out to radio | MC145106 pin 11 | HIGH | |
9 | Data 7 | Out to radio | MC145106 pin 10 | HIGH | |
10 | ACK | In from radio | PTT Switch | Microphone connector Pin 3 | LOW |
11 | Busy | In from radio | Squelch Control | Squelch circuit, IC1 pin 8 | LOW |
14 | Strobe | Out to radio | Frequency select | MC145106 pin 6 | 10kHz = Low and 5kHz = High |
18 | Ground | Ground | MC145106 pin 18 |
Before modification | After modification |
---|---|
To protect the PrinterPort: Cut the trace between IC3 (MC145106) and IC6/IC7 (MC14008) .... |
and insert 8 pcs. 4,7kW resistors across the cutted traces. If pin 9 is connected, cut the trace and insert 4,7kW resistors across. |
Connection to the PrinterPort | Squelch and PTT circuit |
---|---|
Connect a 4,7kW resistor to the SQ-circuit. Use also a 1N4148 or similar diode to protect the input from the PTT-Switch. Connect a wire from PrinterPort pin 14 to MC145106 pin 6 to obtain 5kHz and 10kHz frequency Step. |
Modification with the PLL on separate CPU and PLL board
Pin | PrinterPort | Direction | Usage | Connection to: | Active H/L |
---|---|---|---|---|---|
1 | Data 8 | Out to radio | MC145106 pin 9 | HIGH | |
2 | Data 0 | Out to radio | MC145106 pin 19 | HIGH | |
3 | Data 1 | Out to radio | MC145106 pin 17 | HIGH | |
4 | Data 2 | Out to radio | MC145106 pin 16 | HIGH | |
5 | Data 3 | Out to radio | MC145106 pin 15 | HIGH | |
6 | Data 4 | Out to radio | MC145106 pin 14 | HIGH | |
7 | Data 5 | Out to radio | MC145106 pin 12 | HIGH | |
8 | Data 6 | Out to radio | MC145106 pin 11 | HIGH | |
9 | Data 7 | Out to radio | MC145106 pin 10 | HIGH | |
10 | ACK | In from radio | PTT Switch | Microphone connector Pin 3 | LOW |
11 | Busy | In from radio | Squelch Control | Squelch circuit, IC1 pin 8 | LOW |
14 | Strobe | Out to radio | Frequency select | MC145106 pin 6 | 10kHz = Low and 5kHz = High |
18 | Ground | Ground | MC145106 pin 20 |
Before modification | After modification |
---|---|
To protect the PrinterPort: Cut the trace between IC706 (MC145106) and IC707 (MC74164) on the CPU- and PLL-board.... |
and insert 9 pcs. 4,7kW resistors across the cutted traces. |
Connection to the PrinterPort | Squelch and PTT circuit |
---|---|
Connect a 4,7kW resistor to the SQ-circuit. Use also a 1N4148 or similar diode to protect the input from the PTT-Switch. Connect a wire from PrinterPort pin 14 to MC145106 pin 6 to obtain 5kHz and 10kHz frequency Step. |
Setup
The off-set-frequency oscillator IC10 oscillates at:
13.560MHz for Galaxy DX
14.410MHz for Ranger
14.460MHz for Alan 97
15.450MHz for Cobra 148GTL-DX
for all band.
The off-set frequency signal is obtained at IC10 Oscillator and flows into IC10 Mixer
where it is beat with the VCO signal. The VCO signal is obtained from the following:
fvco = foff-set + Nfr
Where:
f vco = VCO frequency
N = programming code for divider output
fr = reference frequency step (10kHz).
When the different radios use different off-set X-tals, go to SETUP
and select off-set X-tal.
Software: