MIC jack and you’ll have to use a “Y” cable and attach an external speaker to
hear signals (since plugging in a 3.5 mm connector into the external speaker jack
of the radio will cut off the internal speaker.)
If your transceiver accommodates a data jack connection for a radio modem, then
you are free to leave your microphone connected to the MIC jack and the internal
speaker of your transceiver stays active with the data jack wired. Also, volume
supplied to the KAM’98 via the data jack need not be set using the volume pot on
the radio front panel. Some radio accessory jacks provide +12VDC with suffi
-
cient current to power the KAM’98 (so no external power cube/wiring is neces
-
sary, i.e. include the power connection with the data cable). However, by wiring
the KAM’98 to the data jack, you may be restricted by the features supported
when wiring to that jack. For example, some radios may limit data transmission
format there to either AFSK or FSK, some other limitations may apply also, and
you’ll generally have to program a set of switches in the radio to set parameters
for various modes.
So, before deciding on which way you’ll cable your KAM’98 and transceiver to-
gether, study the features and restrictions that may apply to your transceiver’s
data/accessory jack, if one is available.
There are currently hundreds of models of SSB HF and FM transceivers. This
manual gives general guidelines, but you will need to refer to the documenta-
tion for your transceiver to determine the specifics of how it must be con-
nected to external devices, such as the KAM’98.
You will need to know:
•
what type of microphone connector or data jack to use with your
transceiver, and
•
which pins connect to which in the cabling between the KAM’98 and
your transceiver’s microphone or data jack.
Wiring diagrams for selected radios are included later in this chapter, for your assis
-
tance.
Installing Your KAM’98 The Major Components of Your Station
User’s Guide 36 KAM’98 v 8.3
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