Press MEM to save the calibration. Exit SETUP.
Now you can setup the IFS and USB
compensation.
Some users may say, my frequency counter reading is 12000.002, some may 11999.997.
This result is good enough, because the room temperature, the accuracy of the frequency
counter contribute to the result. Tolerance ranging from 5 - 10Hz is acceptable.
Calibrating BFO
Connect the red alligate clip to the test point of BFO. DO NOT forget to insert a resistor
between the clip and the test point to reduce the effect from the frequency counter input.
The resistor value ranges from 470 ohms - 2.2k, depending on your frequency counter
input sensitivity. Try to use a larger value possible. Connect the black alligate clip to the
ground (the main board mounting hole).
Press MOD to select LSB. Adjust L2 until the
reading is 8998.399 or 8998.400. Maybe your reading is 8998.398, or 8998.401, or
8998.403.The result is good enough. Try to be as precise as possible, but never go to the
extreme. 5 - 10Hz tolerance is just fine.
Summary of Contents for TJ2B
Page 3: ...Cables for internal connections Components package...
Page 5: ...Pre assembled Miniature Transformers Packed in a separate plastic bag Brass Stand Off Parts...
Page 10: ...How to insert the LCD Cable Never bend the cable end soldered to the LCD...
Page 12: ...Now solder the 7 wire cable...
Page 35: ...50 ohm cable and MIC cable are connected How the cable is soldered...
