[Ham-Mac] Waterfall display questions

[Stephen Prior]

Robert

Both iSpectrum and CocoaModem do require live audio as you put it.  It's
very simple, just connect between audio input/output of your soundcard and
the K3's line in and out sockets on the rear panel.  The line out socket is
at a level you can adjust within the K3's config and will not change with
the af gain control on the front panel. Once set, you can forget about it.

You will not require any additional interface, as the line connections to
the K3 are fully isolated, you will only need a couple of 1/8" jack leads.
One must be mono, can't remember which, but there is clear labelling on the
K3 rear panel to alert you to which must be connected to  a mono 1/8" plug.

As to whether the mac will simultaneously feed audio to multiple
applications I don't know, Windows XP (SP3 onwards) will do this, one of the
reasons why (heresy!) I now use a windows netbook for most of my radio
stuff.

Hope that helps

73, Stephen G4SJP


On 27/12/2009 05:12, "Robert Klein" <ki4zhf at gmail.com> wrote:

> 
> This is probably elementary, so please bear with me, but I am confused about
> digital mode software for the Mac.  I have a K3 and connect to my Mac (OS
> 10.6.2) via a Keyspan serial to USB.  That works great for logging software
> and the K3 Utility program. The K3 has data capability built-in, so it will
> decode PSK31 RX, for example, without the need for a computer.  The K3
> Utility terminal function will display the output and allow me to type in
> text to transmit, and these work to a degree.
> 
> I am trying to learn and use PSK31 et al., and I want to be able to see a
> waterfall display at the same time.  iSpectrum requires a live audio input
> device (microphone or line in) rather than the USB input.  CocoaModem 2.0
> and MultiMode Cocoa appear to require that also, as I could not figure out
> how to make them respond to the input from the radio.  I have the
> transceiver set to Data/PSK31 mode and tuned to a transmission, but nothing
> shows up anywhere in those programs, so I can only surmise that live audio
> is required.  I would prefer not to have to connect live audio because I use
> an external speaker and it just seems like a very clumsy way of going about
> it.  Neither program has built-in Help and the manuals are not at all clear.
> MacLogger DX does not appear to have a waterfall display for digital modes.
> I want to have software includes PSK31 controls and terminal, and
> Digipan-like display without having to run Parallels or the like with
> Windows.  I don¹t want to have to buy a panadapter.  Would I have to run the
> live audio at the same time that I run two programs (K3 Utility, MacLogger
> DX or Aether, etc. AND iSpectrum or MultiMode Cocoa) at once to do this?  Am
> I missing something with these programs?  I don¹t even know if there is a
> combination that is or is not compatible running at the same time.
> 
> I would very much appreciate the community¹s advice on this.
> 
> Thanks and 73,
> 
> Robert
> KY1RK
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