Ham STAMPFL RF SHARK, Building Instructions

Page: 20 / 53

1
2
3
4
5
LEDs are used to control the switching voltages for the preselector and
the modulations.
FUNCTIONAL TEST: 12
ON/OFF Control
Apply voltage. 11 - 15V. The controller board must be able to be switched on and off with a
click. All buttons and the display must light up. ATT excluded.
Set the display contrast using the 25-turn potentiometer.
If the memory is empty, the display shows MHz - 65535 Hz STEP.
Check the amateur band button
When the button is pressed again, all appear one after the
other
When the button is pressed again, all amateur radio bands appear one after the other.
Check the radio button
When the button is pressed again, all broadcast bands appear one after the other.
Check the STEP button
When the button is pressed again, all frequency steps appear in succession:
10 Hz, 100 Hz, 1K Hz, 5K Hz, 9 KHz.