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WINScanner

Windows software for Cherokee NorthStar


WINScanner


Functions:
Frequency range from 24,255MHz to 29,365MHz
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
EPT3600 Software
Connex CX-4400 CB-Radio

Price:
Few component`s
1 pcs. 25-Pin D-SUB Connector
1 pcs. NULL-Modem Cable



The connection to Printer port.

 25-Pin Printer Connector

Install a 25-pin D-SUB Male connector on the radio`s bottom cover, and use a NullModem cable to the computer`s printer port.
See Radio interfacing to Printer Port for more information about using PrinterPort.

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 sircuit, 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
MC145106  Circuit
To protect the PrinterPort:
Cut the trace between IC5 and connector to CPU-PCB....
MC145106  Circuit
and insert 9 pcs. 4,7kW resistors across the cutted traces.


Connection to the PrinterPort Squelch and PTT circuit
MC145106 Connection Circuit Connect a 4,7kW resistor to the SQ-circuit.

Use also a 1N4148 or similar diode to protect the input fron 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 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 = referency frequency step (10kHz).
When the different radio`s use different off-set X-tals, go to SETUP
Stup
and select off-set X-tal.


User Manual



Software:
EPT3600.EXE and install the file under C:\NorthStar\
Inpout16.DLL and install the file under C:\WINDOWS\SYSTEM\
VBRUN300.DLL and install the file under C:\WINDOWS\SYSTEM\

Saving files:
PC: Right-click on link and choose "Save File As"
Mac: Click and hold on link and choose "Save File As"