User Manual

View
Internal EEPROM Contents
This displays in a separate window the contents of the units EEPROM. The data displayed
is for the functions and channels displayed on the main screen at that time. Data can be
hand-modified by moving highlighting the data and over-writing it. THIS SHOULD ONLY
BE CARRIED OUT WITH FULL KNOWLEDGE OF THE INTERNAL WORKING OF THE
SX500. Note that the type of data in each field is displayed at the bottom of the window.
While this window is displayed, no access is available to the main screen. The window
must be cleared down by clearing the “tick” in the View drop-down menu.
Unit Settings
PIC Code
only displayed when the Readback function has been used to download the
contents of the EEPROM.
Current Settings Data
COM port Select the correct serial port for the connection to the SX500,
default COM1.
Intermediate Frequency
The Intermediate Frequency is fixed by the hardware and
cannot be accessed
Fosc The oscillator frequency is fixed by the hardware and cannot
be accessed.
Comparison Freq. (Fc) The channel step size is fixed by the hardware at 12.5 kHz.
For 25kHz or other channel spacings, set the Table Step size
accordingly.
Minimum Frequency The minimum frequency is used by the software as a base-
line for all other frequency information. This frequency is
determined by the physical build of the unit and how it has
been aligned. The s/w will not allow a frequency below this
minimum to be selected. This frequency is stored in the non-
volatile EEPROM in the unit.