RTTY
When operating this mode using AFSK (mic input), set your HF radio in lower sideband (LSB).
This is general practice in the amateur community for digital communications. You should also
have the VOX disabled since the KAM Plus will key your transmitter. When transmitting, the
amount of power generated by your station can be adjusted with the mic gain control on your
radio. You should set this control just to the point of maximum power output. If your radio
has an ALC indicator, adjust mic gain for minimal indication. NOTE: Your radio may not be
capable of handling full power for continuous transmissions when operating RTTY, hence, you
may have to reduce mic gain. Check the manual for your radio to determine its limitations.
From the cmd: prompt, type RTTY and press return. The KAM Plus enters the RTTY mode and
sends the following message to your display screen:
-RTTY 45-
This indicates that you are in the RTTY operating mode, ready to receive RTrY at 45 baud. If
you now tune to a RTrY signal, your KAM Plus decodes the information and displays it on your
screen.
To transmit RTTY; type CONTROL-C and then the letter T (do not hold the control key while
typing the T). This keys your transmitter, the bargraph on the front of the KAM Plus will go
dark, and the red LED at the far left of the front panel ofthe KAM Plus lights indicating you
are transmitting. Now type your message on the keyboard. The KAM Plus sends this message
over the radio. Once you have finished typing your message, you must tell the KAM Plus that
you are done, allowing it to return to the receive mode. To do this, type CONTROL-C followed
by the letter E. The KAM Plus returns to the receive mode after all of the input data has been
transmitted.
If you would like to operate RTTY at a different speed (perhaps 75 baud), you can enter the
RTTY mode from the command prompt with the speed specified after the command (e.g.
RTTY 75). This results in this message from the KAM Plus:
-RTTY75-
You are then be ready to receive and transmit RTTY at 75 baud.
When you finish operating RTTY and want to change to another mode, you must first return
to the Command mode. Type CONTROL-C and then the letter X. This exits the RTTY mode
and returns to Packet mode, giving you the cmd: prompt from the KAM Plus.
ASCII
When operating this mode using AFSK (mic input), set your HF radio in lower sideband (LSB).
This is general practice in the amateur community for digital communications. You should also
have the VOX disabled since the KAM Plus will key your transmitter. When transmitting, the
amount of power generated by your station can be adjusted with the mic gain control on your
radio. You should set this control just to the point of maximum power output. If your radio
has an ALC indicator, adjust mic gain for minimal indication. NOTE: Your radio may not be
capable of handling full power for continuous transmissions when operating ASCII, hence, you
may have to reduce mic gain. Check the manual for your radio to determine its limitations.
From the cmd: prompt, type ASCII and press return. The KAM Plus enters the ASCII mode
and sends this message to your display screen:
-ASCII 110-
This indicates that you are in the ASCII operating mode, ready to receive ASCII at 110 baud.
If you now tune to an ASCII signal, your KAM Plus decodes the information and displays it
on your screen.
GETTING STARTED
G10
April 15. 1993 KAM Plus
(i;)Copyright1993, Kantronics Co., Inc. All Rights Reserved.
Duplication of this manual or the firmware without permission of Kantronics Co., Inc. is prohibited.
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