QRP PROJECT Blue Cool Radio, Руководство пользователя

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Rev: November 20 2006
6
Now turn around the PCB. Here you will install the Clock Oscillator and the
3 connectors.
Solder first the integrated Clock. Take care to place the sharp edge to the
upper right corner as shopwn in the picture.
[ ] Clock oscillator
Now mount the 2x2pin and 1x3 pin male connectors. They are placed at the
side where the clock is and soldered at the side where the DDS is. Adjust
them to a 90 degree angle before soldering.
[ ] ST1 connector 2 Pin male
[ ] ST2 connector 3 Pin male
[ ] ST3 connector 2 Pin male
Starting her,e same prodedure for
both, ready made and self soldered
DDS Modules:
Place the female connectors into their
holes, place the modules into the
connectors, adjust the modul on the
connectors and solder.
[ ] ST1 2 PIN female, 90degrees angle
on Mainboard, solder from solder side.
[ ] ST2 3 PIN same
[ ] ST3 2 PIN same
Now place the PIC processor itself into the socket. Find at first the 45
degree side of the PIC. This side must look to the inner part of the PCB.
Dont force too much power while pressing the PIC into the socket, it must
find its place very smooth.
[ ] IC4 PIC16F877 PLCC + B/C-1/2
[ ] Reinstall the Display
[ ] Install the DDS Module
Check all your work with a magnifier for shorts and unsoldered Pins. If this
is ok, apply 12 Volt and start testing of section 2.
After power on, adjust Contrast Pot P7 (on solder side of the PCB) to make
the signs in the display readable. If so, swith power off an on again.
The display should show it´s initial sequence for a short time: Blue cool
Radio and the Firmware revision e.g. 1.14. After the initial frequency it
should show VFO A and B both at 7030 kHz.
At St3 RF- 0ut you will find the RF output of the DDS. Though the
controller is in receive mode, the generated RF is calculated: Display
frequency plus or minus RF depending on the band. You may control it with
a receiver or a counter if you want so. Because most of you will play with
the controller menue, we go on with the description of the Firmware now.
How to use the DDS_BCR
Press the Shaft encoder short
: Change Rate sequential 10Hz, 50 Hz, 1kHz
If you are in „Radio“ mode, 100kHz rate is added. Change of rate is
signalized by a short beep (later on, if the AF is installed) Rate is displayed
by decimal point /resolution of the shown frequency.
Press shaft encoder long (> 1s) The display will switch to MENUE.
By turning the shaft encoder, you scroll through the menue
Menue:
0 break
Leave the menue without changing anything
1 VFO A/B Switch between VFO A/B
2 Band 0 80m (only available with built in 80m Option) Switch to 80m by
pressing the shaft encoder. Actual frequency of actual band will be