Re: Elecraft Digest, Vol 99, Issue 24

[Bart Bankert]

Thanks to those who responded to my query. I did mean options. Considering
a KX3 as an intro HF rig due to It's portability,versatility and
expandability. Price is a major factor and the KX3 looks like a lot of
radio that I could get on HF with and grow into. All comments and advice
appreciated. 73 W2BRB

Bart R. Bankert
On Jul 13, 2012 12:42 PM, <[hidden email]> wrote:

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> Today's Topics:
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>    1. Re: Digital Mode Interface for the KX3 for WSJT modes
>       (Bob Cunnings)
>    2. Re: Using PSK 31 with my K3, and Ham Radio Deluxe (Terry Schieler)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 13 Jul 2012 09:52:00 -0600
> From: Bob Cunnings <[hidden email]>
> Subject: Re: [Elecraft] Digital Mode Interface for the KX3 for WSJT
>         modes
> To: Elecraft Reflector <[hidden email]>
> Message-ID:
>         <CAJi1CYqQi1VUtvO4r4BhaHUZ8+=
> [hidden email]>
> Content-Type: text/plain; charset=ISO-8859-1
>
> I don't understand this response. Why would he need to use 2 serial
> ports or Y adapters? He states that a full serial port will run from
> computer to interface box, where the serial signals will be broken out
> as required for PTT and CW. Presumably the KXSER rs-232 cable could
> run between interface box and the KX3 to convey RXD and TXD. What am I
> missing?
>
> Bob NW8L
>
> Bill,
>
> You may want to re-think using the serial port on your interface.
>
> Most data mode applications like to use the same COM port for rig
> control (OK, maybe just frequency display) as they use to activate DTR
> or RTS for PTT.
>
> Given that the KX3 supplied cables only have RXD and TXD signals, using
> the serial port to generate PTT requires that either you use 2 serial
> ports (one may be the KX3 USB cable and the other can be a real port or
> USB to Serial adapter), or provide a "Y" adapter to go to your
> interface.  Use of the "Y" adapter precludes the use of the KX3 USB cable.
>
> There is nothing wrong with generating PTT from the audio stream, or
> just using VOX in the KX3.
>
> 73,
> Don W3FPR
> On 7/13/2012 9:51 AM, Bill Conkling wrote:
> > I am working on an interface in a box w/pcb.  Once you use a box, you
> can do
> > anything.  I plan to have full serial port and two audio cables from
> > computer.  Transformers in the audio chain and a 10K/1k attenuator in mic
> > input to KX3.  I will split the serial port to provide proper connections
> > for CAT, PTT, and CW as n1mm handles the K3.
> >
> > Whole thing in a 2.5X2.5X1 box.
> >
> > Big plans....
> >
> > ...bill nr4c
> >
>
>
> ------------------------------
>
> Message: 2
> Date: Fri, 13 Jul 2012 10:55:23 -0500
> From: Terry Schieler <[hidden email]>
> Subject: Re: [Elecraft] Using PSK 31 with my K3, and Ham Radio Deluxe
> To: [hidden email], 'Rowland R Johnson' <[hidden email]>
> Cc: [hidden email]
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset="us-ascii"
>
> Don,
>
> Along this line, I think I see that the Line Out level (Mic control) in
> Data A mode on my K3 needs a bit of "tweaking" when changing bands to get
> the ALC level to maintain the 4 bars with the 5th flickering.  Does this
> sound normal?  Could it be the reason for someone like Bill (below) to not
> get power out with PSK31 on some bands but get it normal on others?
>
> Terry, W0FM
>
>
>
> -----Original Message-----
> From: Don Wilhelm [mailto:[hidden email]]
> Sent: Friday, July 13, 2012 9:18 AM
> To: Rowland R Johnson
> Cc: [hidden email]
> Subject: Re: [Elecraft] Using PSK 31 with my K3, and Ham Radio Deluxe
>
> Why would one want to set the mode to USB when the K3 provides DATA A mode
> which is the same thing except that compression is automatically set to
> zero, the equalization is turned off, and the input level can be set to
> Line in and the level remembered so it is almost automatic once set up.
>
> In answer to the original question, check the data submode - that is a per
> band setting.
>
> 73,
> Don W3FPR
>
> On 7/13/2012 10:10 AM, Rowland R Johnson wrote:
> > Make sure that mode is set to USB for the 10, 20, 30, and 40 meters.
> >
> > On 7/13/2012 6:50 AM, Bill Thompson wrote:
> >> For some reason, I can key up my K3 on 15 meters, and get power out.
> >> When I send out a CQ, the red TX light comes on, I get a audible
> >> tone, and power out to my antenna. The CQ message shows up on the
> >> message screen in the
> >> DM780 program. When I try to send text on 10, 20, 30, and 40 meters,
> >> I get the red TX light, but no audible tone, and no power out of the
> >> K3. I can't see that I have anything set different for the 15 meter
> >> band than the others. Any ideas?
> >>
> >> Thanks,
> >>
> >> Bill AA4MJ
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> End of Elecraft Digest, Vol 99, Issue 24
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