FSK problem with my K3

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FSK problem with my K3

Stewart GM4AFF
I have been trying to make FSK work with my K3 since last September on
and off (excuse the pun). I have tried 4 different interfaces, I have
traced through all the cables many times, tried different software,
tried different COM ports, I have torn my hair out, etc.

I have a splitter on the output from the K3's ACC socket to an Export
1.3k, a band decoder and an XV144 transverter, as well as the FSK keying
lead. As a last resort I tried unplugging the various peripherals one by
one from the splitter box. And hey presto, when I unplugged the
transverter the problem is finally resolved and I can hear diddles
emitting from the radio! The transverter pulls pin 1 down to earth! This
is a serious issue! I haven't gone any further yet, to investigate why
pin 1 is even connected to the transverter.

Now what if I wanted to operate RTTY on 2m??!

I hope this helps anyone else who has this issue.

73
Stewart
GM4AFF
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Re: FSK problem with my K3

Don Wilhelm
Stewart,

Check the construction of your XV144 control cable at the 15 pin
connector.  There should be no connection to pin 1.  If there is,
correct it so the connector is wired like that shown in the XV Owner's
manual - see Figure 7 on page 11. If you do not have the latest XV
Owner's manual, download it.

Yes, you should be able to leave the XV144 connected, and you should be
able to work RTTY on 2 meters.

73,
Don W3FPR

On 1/22/2017 3:15 PM, [hidden email] wrote:

> I have been trying to make FSK work with my K3 since last September on
> and off (excuse the pun). I have tried 4 different interfaces, I have
> traced through all the cables many times, tried different software,
> tried different COM ports, I have torn my hair out, etc.
>
> I have a splitter on the output from the K3's ACC socket to an Export
> 1.3k, a band decoder and an XV144 transverter, as well as the FSK keying
> lead. As a last resort I tried unplugging the various peripherals one by
> one from the splitter box. And hey presto, when I unplugged the
> transverter the problem is finally resolved and I can hear diddles
> emitting from the radio! The transverter pulls pin 1 down to earth! This
> is a serious issue! I haven't gone any further yet, to investigate why
> pin 1 is even connected to the transverter.
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Re: FSK problem with my K3

Jim Brown-10
In reply to this post by Stewart GM4AFF
On Sun,1/22/2017 12:15 PM, [hidden email] wrote:
> Now what if I wanted to operate RTTY on 2m??!

You might have trouble finding someone to talk to. :)

More seriously, why FSK? AFSK works quite well with all versions of K3
hardware and VOX works for TX. If you need more time for an antenna or
preamp relay to pull in, there's a menu setting for delay TX after amp
key. As I recall, the default is about 8 msec.

73, Jim K9YC

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Re: FSK problem with my K3

Jim Rhodes-2
I use FSK simply because a 1 transistor switch leaves less to adjust, and
readjust, and readjust again and again. I use sound card for other things
between RTTY tests. There is just less to go wrong.

Jim Rhodes

On Jan 22, 2017 4:18 PM, "Jim Brown" <[hidden email]> wrote:

> On Sun,1/22/2017 12:15 PM, [hidden email] wrote:
>
>> Now what if I wanted to operate RTTY on 2m??!
>>
>
> You might have trouble finding someone to talk to. :)
>
> More seriously, why FSK? AFSK works quite well with all versions of K3
> hardware and VOX works for TX. If you need more time for an antenna or
> preamp relay to pull in, there's a menu setting for delay TX after amp key.
> As I recall, the default is about 8 msec.
>
> 73, Jim K9YC
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>
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