3
2.4 Select tuning rate mode
14,060,050
Use the rotary encoder to move the cursor underlining the tuned digit, to the left and right. The select
tuning rate mode is active only while pressing the right button. Remember that the internal button in
the rotary encode is in parallel with the right button. Therefore changing the tuning step is a matter of
pressing in the rotary encoder, holding it pushed in, and turning it to alter the tuning rate.
The available tuning rates are 10MHz, 1MHz, 100kHz, 10kHz, 1kHz, 100Hz, 10Hz and 1Hz. The
default at power up is 100Hz.
Control functions:
Rotary Encoder:
Move the tuning rate cursor left and right
Left button:
No effect, in tuning rate mode
Right button:
Right button must be held pressed, to keep in select tuning rate mode. Releasing
the right button returns to the VFO Tuning mode.
2.5 Configuration menu editing mode
Preset 0
010,000,000
This is the mode for editing all the configuration parameters. The configuration items are stored in the
processors EEPROM memory, and are preserved when the power is switched off. Enter the menu
editing mode from the VFO tuning mode, by pressing the right button briefly.
Control functions:
Rotary Encoder:
Moves the display up and down through the list of configuration menu items
Left button:
Press to start editing the currently displayed configuration item
Right button:
Leave the menu editing mode and return to the VFO Tuning mode.
More details on the actual editing process are in the next section.
2.6 Editing a configuration menu item
The user interface consists of the 16-character 2-row LCD, rotary encoder, and two push-buttons. A
number of user-configurable settings available, to set up the frequency presets, GPS behaviour, IF
Offset, Multiplier, and other settings. The menu system allows all of the settings to be edited.
