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The following commands cause the Receiver to change operatirigparameters, but do not
result in data responses to the remote control device. Therefore, more than one Receiver
may be addressed at once by inserting commas (in ASCII format) between the receiver
numbers.
EXAMPLE 5:
The command: 599,14,27,F5CR would result in receiver number 99, 14, and '27 being
set to a frequency of 05.000000
MHz.
NOTE
Once multiple receivers have been addressed as in this example, two
things must be remembered:
(1)
any subsequent parametet: change
command preceding the next
$
will result in that parameter being
changed on all receivers addressed (in the example, receiver numbers
99, 14, and 27); (2) A status or monitor command may not be sent
before the next
$,
since more than one Receiver cannot respond on
the bus at the same time. If a status or monitor command is sent, the
command is simply ignored. To change only one receiver's operating
parameter(s) or to send a status or monitor command, the desired
Receiver must be readdressed individually ($99 or $14 or 527 in
Example 5).
Frequency Selection. The command is inthe format FN where N is used to select the
Receiver(s) operating frequency. The frequency command may specify the desired
frequency down to
1 Hz.
For example, the command F03.415926 would tune the
Receiver(s) to 3.415926
MHz.
If an exact frequency isnotrequired,theleadingand
trailing zeros may be
elirninated.Thecomniand~,F3.4
would tune the' Receiver(s) to, ".
3.400000 MHz. Note thafin both cases a deciImil pointls
requitedt6~iIldicate
MHz.
If an exact multiple of I MHz is desired
(as
in Example 5), "F' followed by the desired
MHz
number
(as
in Example
5)
may be sent without a decimal point. This will tune the
addressed receiver to the exact whole multiple of 1 MHz specified.
Detector Mode Selection. The desired detector mode is selected by sending the command
ON where N is the desired detector mode as follows:
01 - AM
02 - FM
03 - CW with variable BFO
04 - CW with BFa CENTER
05 - ISB (if ISB option
is installed)
06 - LSB
07 - USB
BFO Offset. The BFO offset frequency maY'be set by sending the command BN where
N
indicates the offset frequency in kHz. For example, the command B+1.82 will set the BFO
offset 1.82 kHz above the center frequency; B-4.65 will set the offset 4.65 kHz. below
the'~''':'~
center frequency.
Bandwidth Selection. The desired bandwidth is selected by sending the command IN
where
N
indicates the filter bandwidth in kHz. For example, the command
13.24
would
3-25
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