Radio Mode Command Set; Frequency Tuning - Ten-Tec OMNI-VII 588 Programmer's Reference Manual

RADIO MODE Command Set

In this section, we will explore the command set available on the Serial Interface
when the radio is in RADIO MODE. Unless otherwise specified, queries use the same
command letter, except that instead of an Asterisk, use a "?". E.g. *A sets main
frequency, ?A requests Main Frequency. Value returned is in same format as the
command format for that value.

Frequency Tuning

Tuning the OMNI-VII is accomplished by two commands that provide the frequency
entry into either the main or sub frequency. The frequency data is the desired frequency
in Hz formatted as a 4-byte binary number.
Once this command is sent, follow it with a Frequency Query, because the OMNI-
VII will limit the frequencies to supported ranges.
e.g. 100Hz to 29999999Hz, and 48000000Hz – 54000000Hz
Format:
Where:
Example1:
Example2:
Example3:
Note: In order to connect serially to a SteppIR Antenna Controller or CT Logger, the
OMNI-VII needs to answer the serial ?A query with a different protocol.
When the menu item "SERIAL IF" = "OMNI-VII",
?A returns the protocol as shown above. (always this form for Ethernet)
When the menu item "SERIAL IF" = "SteppIR/CT",
?A returns @Afnnnnnnnn<CR> - nnnnnnnn is 8 ascii values
representing the current frequency. Preceding zeros are included.
@AF00120000<CR> means 120,000 Hz.
The binary form A<d3,d2,d1,d0> is always returned for Ethernet queries.
Rev 1.009
OMNI-VII Firmware Updates at www.rfsquared.com
'*' ['A' or 'B'] <d3 d2 d1 d0> <CR>
'*' = the ASCII '*' symbol (0x2a)
A = the ASCII 'A' character (0x41)
B = the ASCII 'B' character (0x41)
<d3..d0> = Frequency in Hz as a 4 byte binary number. The most
significant byte is d3. The least significant byte is d0.
*A<0x00><0xe4><0xe1><0xc0><CR> sets the main VFO to
15,000,000 Hz or 15 MHz.
*B<0x00><0x5b><0x2b><0xd8><CR> sets the sub VFO to
5,975,000 Hz or 5.975 MHz.
*A<0x03><0x37><0xF9><0x81><CR> requests to set the main
VFO to 54,000,001Hz. However, the radio will limit it to
54,000,000Hz.
OMNI-VII Programmer's Reference Guide 15 of 63