Unit installation

15-14
RLC-3 V1.80 Copyright © 1998 Link Communications Inc. 9/17/98
"p A": Bump up 20 Hz. If you are in transceive mode, you may get an error if the new
before the 100 Khz digit. Voice response is "Up 20".
Digit B:
"p B": Bump down 20 Hz. If you are in transceive mode, you may get an error if the new
before the 100 Khz digit. Voice response is "Down 20".
Digits C and D: Not used.
Digit *: Used only when entering frequencies. See the instructions for "HF Frequency Entry:"
below.
Digit #": Used to make a command execute right away, without waiting for you to unkey. Similar
to the forced execution digit of 'D' that is used when not in HF mode. If you press '#' after
entering a command, you may not be able to hear part of the voice response to that
command. Simply unkeying will avoid this problem.
Scanning:
Although your HF radio may have a scan feature built in, it is not used when scanning with
the controller (see the "Virtual Radio Features" section at the beginning of this chapter). Instead,
the controller sends a new frequency to the radio several times a second. Each time a new
frequency is sent, it is 20, 100 or 500Hz different than the previous frequency, depending on
whether you have selected slow, medium or fast scanning. A new frequency is sent just as often
when scanning slowly as when scanning fast, but because the frequency is changed by a different
amount, the resulting scan rate is different. You can change how often a new frequency is sent to
the radio by adjusting a timer. Changing that timer will affect all three scan rates. See command
020 in Chapter 4 for information about changing the HF scan timer value.
When the controller reaches the top or bottom of a scan band (see command 197), it will
speak the current frequency, wrap around to the other edge of that band, speak the frequency
again, and continue scanning. It will also speak the frequency every 10 Khz when scanning slow or
medium or every 25 Khz when scanning fast.
HF Frequency Entry:
To enter a new frequency, press the HF prefix digit (default is '1') followed by the
frequency. Put a '*' after the 1 Mhz digit. For example, to go to 14.25 Mhz, enter "1 14*25" and
unkey or press '#'. Leading and trailing zeros are optional. The '*' must be entered, as that is the
only thing the controller uses to tell whether you are entering a frequency or another command.
On the RLC-3, when controlling the HF radio from the controller's serial port, you can use a '.'
rather than a '*' if you wish.
Automatic Mode Selection:
When frequencies below 10 Mhz are entered, LSB mode is automatically selected. When
frequencies between 10 Mhz and 29 Mhz are entered, USB mode is automatically selected. When
frequencies above 29 Mhz are entered, FM mode is automatically selected. Of course you can
always override the default mode (using keypad command 1). When memories are recalled, they
retain the mode they were stored with, rather than using the automatic mode selection feature.