[ICOM] Computer Control Interface

[AD5VJ Bob]

Adam:

The question I have for you is somehow I expected the
USB-D to hold it's own filtering setup separate from the
USB filtering, but after changing the USB-D filtering to a
500 hz and then switching back to USB it stays at 500 hz
filtering instead of changing to the 3.0 khz filter for
SSB.

Is this normal or am I missing a procedure in the manual
somewhere to make the USB-D default to it's own more
narrow filtering while leaving the USB filtering alone?

I guess I could save it in memory and recall it when I
wanted to do DIGIMODES and it would hold it but is that
necessary?



  73 fer nw,
Bob AD5VJ

10X# 37210, FP#-1141, SMIRK#-5177
http://www.n5iet.com/
Code may be taking a back seat for now,
but the pioneering spirit that put the code
there in the first place is out front of it all.




> -----Original Message-----
> From: icom-bounces at mailman.qth.net 
> [mailto:icom-bounces at mailman.qth.net] On Behalf Of AD5VJ
Bob
> Sent: Monday, December 26, 2005 12:23 PM
> To: 'ICOM Reflector'
> Subject: RE: [ICOM] Computer Control Interface
> 
> 
> Hello All,
> 
> Well I tried everything that made sense and I could not
> get the MFJ-1279 to do FSK although it will do
everything
> else.
> 
> I could see, after taking the top cover off of the MFJ,
> that the MFJ  was in fact sending data over the TXD line
> from the computer with RTS and DTR both keyed down solid
> for PTT. 
> 
> So I put in the jumper that should send the data to the
> "CW Output" of the MFJ-1279 and made a cable for the ACC
1
> jack on the back of the rig (connecting the center pin
to
> pin 1 (RTTY keying) and the outer shell to pin 5
(ground).
> 
> But did not get FSK data to come out of the rig when in
> the RTTY mode, instead all I got was a steady keydown
> state no matter what I did with the jumper
configuration.
> 
> So then I changed over to a BUXCOMM RASCAL MV5RY which
> also does everything (including FSK) just fine  -
except
> that BUXCOMM, in their infinite wisdom, did not include
in
> the design a way to connect to the "Key" jack on the
back
> of the rig in order to key cw.
> 
> After using various configurations of the two, I have
> found a temporary way to do it all by using both units,
> but that takes up two ports (waste of resources).
> 
> The MFJ-1279 on port 1 for keying the CW jack and the
> BUXCOMM RASCAL MV5RY on port 2 for doing all the rest of
> the sound modes as well as FSK. It works fine when the
rig
> is in USB-D or RTTY. No problem. It just wont key the CW
> "Key" jack because there is not provision for it in the
> design.
> 
> Now what I am trying to do is (modify the BUXCOMM
design)
> to figure a way to make a "Key" connection for the
Buxcomm
> and connect it to the "Key" jack at the back of the rig.
> 
> Then I think I can take the MFJ-1279 completely off of
the 
> bench and the Buxcomm will then do it all.
> 
> At least that is the plan.
> 
> Has anyone ever made a BUXCOMM RASCAL MV5RY key the "CW
> Key" jack on the back of the rig?
> 
> Is it just a simple matter of soldering in a line to the
> serial 9 pin connector going to the Buxcomm or do I have
> the make a driver circuit for it.
> 
> Also not sure which line to use for CW keying on the
"Key"
> jack on the back of the rig (RTS, DTR, TXD)
> 
> The Buxcomm serial cable has only three lines connected
to
> the buxcomm circuit board from the computer:
> clear insulation (goes to pin 5 "Ground")
> brown insulation (goes to pin 3 "TXD")
> green insulation (goes to pin 7 "RTS").
> 
> I have found some simple circuits (common transistors)
> that I think will work for driving the keying circuit
(if
> that is necessary)
> 
> If not, then it's just a matter of connecting the
correct
> pin to the "Key" jack. But which one?
> 
> Again:
> Has anyone ever made a BUXCOMM RASCAL MV5RY key the "CW
> Key" jack on the back of the rig?
> 
>   73 fer nw,
> Bob AD5VJ
> 
> 10X# 37210, FP#-1141, SMIRK#-5177
> http://www.n5iet.com/
> Code may be taking a back seat for now,
> but the pioneering spirit that put the code
> there in the first place is out front of it all.
> 
> 
> 
> 
> > -----Original Message-----
> > From: icom-bounces at mailman.qth.net
> > [mailto:icom-bounces at mailman.qth.net] On Behalf Of
Adam
> Farson
> > Sent: Sunday, December 25, 2005 8:26 PM
> > To: 'ICOM Reflector'
> > Subject: RE: [ICOM] Computer Control Interface
> > 
> > 
> > Hi Bob,
> > 
> > The USB-D mode mutes the MIC socket. Baseband has to
be
> fed 
> > to the radio via ACC(1). It also disables compression,
> and 
> > allows the selection of filters with 500 Hz or
narrower
> BW, 
> > and a shape factor appropriate to narrow-band data
modes
> (BPF 
> > Indicator on.)
> > 
> > http://www.qsl.net/ab4oj/icom/ic756pro_notes.html#BPF
> > 
> > Cheers for now, 73,
> > Adam VA7OJ/AB4OJ
> > 
> > 
> > -----Original Message-----
> > From: icom-bounces at mailman.qth.net
> > [mailto:icom-bounces at mailman.qth.net] On Behalf Of
AD5VJ
> Bob
> > Sent: 25 December 2005 17:49
> > To: 'ICOM Reflector'
> > Subject: RE: [ICOM] Computer Control Interface
> > 
> > OK I tried it and it didn't work.
> > 
> > What is the USB-D mode? Can it only be used through
the
> ACC 1 port?
> > 
> > Not happy the decision to give up on FSK and work only
> > soundcard, I have now tried my BUXCOMM RASCAL which
> works 
> > great with the FSK, it is just fine.
> > 
> > However I cant seem to get it to work correctly with
the
> 
> > soundcard modes such as PSK.
> > 
> > What is the USB-D mode? The manual says virtually
> nothing 
> > about it except that it exists, how to get to it and
> that 
> > when in USB-D mode it mutes the microphone.
> > 
> > So can I assume since it mutes the mic that I need to
> use the 
> > ACC 1 instead of the mic input that I use with the
> MFJ-1279?
> > 
> > 
> > 
> >   73 fer nw,
> > Bob AD5VJ
> > 
> > 
> > 
> > Scanned for viruses by Blue Coat
> > http://www.WinProxy.com/
> > ----
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> 1700Z, 
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> > 
> 
> 
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