KAM+ Connections

[Joel Black-2]

I have finally gotten the KAM+ working with the K3.

Lots of helpful suggestions here as usual.

To start off my problem, I wound up having the TxA and RxA connections
reversed.  Once I got that corrected, I could receive just fine, but I
could never transmit (no audio using MON and no transmit power).  Well,
after reading the manual yet again, I found a jumper for increasing the
TxA from the KAM and a pot that adjusts that output audio.  I could then
hear the signal, but I still had no output power.  Adjusting the MIC
gain solved that.  I think the audio from the KAM may be a little hot so
I am still playing around with that.

I will forward the wiring diagram if anyone's interested.

73,
Joel - W4JBB
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[Dave Johnson]

Joel

I am surprised that the audio levels seem to be an issue, I haven't
used mine for ages with the K3, but my SCS modem levels are 500 mV
(PSK and FSK amplitude) on transmit into the line input of the K3,
line input set to 30 on the K3. The K3 line out is 045 and not mixed
with phones. It works fine on 010, the default K3 setting too.

There are some settings on my web page: www.astromag.co.uk/amtor/ The
modem settings are shown for an SCS PTC-IIex, but there will be
equivalent settings for a KAM (note the tone orientation on the KAM
differs from the SCS modem, for RTTY/AMTOR on the SCS use DATA A and
DATA A "REV" for the KAM).

You might try looking for a Pactor contact on 14.1125 (LSB or REV TX
DATA), that should equate to a centre frequency of 14.111 MHz, an
often used Pactor channel. You can see who is around from the website
http://hamspots.net/arq/

73 Dave, G4AON
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[Don Wilhelm-4]

Joel,

The K3 has an indicator for the proper audio input level - it is the ALC
meter.  For data modes, adjust the audio output to have 4 bars lighted
with the 5th bar flickering.
The old advice normally seen to not have any ALC meter activity.  The K3
ALC meter is different - the onset of ALC is the 5th bar, below that
level it behaves more like a VU meter to allow you to easily set the
audio level.

73,
Don W3FPR

On 1/30/2012 6:36 AM, Joel Black wrote:

> I have finally gotten the KAM+ working with the K3.
>
> Lots of helpful suggestions here as usual.
>
> To start off my problem, I wound up having the TxA and RxA connections
> reversed.  Once I got that corrected, I could receive just fine, but I
> could never transmit (no audio using MON and no transmit power).  Well,
> after reading the manual yet again, I found a jumper for increasing the
> TxA from the KAM and a pot that adjusts that output audio.  I could then
> hear the signal, but I still had no output power.  Adjusting the MIC
> gain solved that.  I think the audio from the KAM may be a little hot so
> I am still playing around with that.
>
>

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