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[K2] set-up for PSK31

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ny4g

[K2] set-up for PSK31

I need help in understanding why no one can seem to hear me on PSK with my K2

I am using Signalink USB

RF is going out with PWR set to less than 25 watts
Monitoring the TX - I can hear the modulation of the side band through a headphone and it seems to sound normal

I have mode set to USB

I am calling CQ and answering CQ's but no one seems to hear me.

I have RTTY turned off

I receive signals OK

I have VOX set to PTT

I have 2 bars on the ALC metering and I can't seem to get more than 2 bars - meter starts from the right

I know I missed something in the basic setup but cant seem to know what it is

Ariel NY4G

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ny4g

Re: [K2] set-up for PSK31

I played with the ALC to just get the onset of ALC but no luck

Ariel NY4G

Sent from my iPhone

On Jul 19, 2013, at 1:11 AM, "Ariel Jacala" <[hidden email]> wrote:

> I need help in understanding why no one can seem to hear me on PSK with my K2
>
> I am using Signalink USB
>
> RF is going out with PWR set to less than 25 watts
> Monitoring the TX - I can hear the modulation of the side band through a headphone and it seems to sound normal
>
> I have mode set to USB
>
> I am calling CQ and answering CQ's but no one seems to hear me.
>
> I have RTTY turned off
>
> I receive signals OK
>
> I have VOX set to PTT
>
> I have 2 bars on the ALC metering and I can't seem to get more than 2 bars - meter starts from the right
>
> I know I missed something in the basic setup but cant seem to know what it is
>
> Ariel NY4G
>
> Sent from my iPad
> ______________________________________________________________
> 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

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Don Wilhelm-4

Re: [K2] set-up for PSK31

In reply to this post by ny4g

Ariel

The K2 ALC indication is *not* the same as the K3 or KX3. With the K2,
you want NO ALC bars.
You are overdriving. Back off the audio drive until the last ALC bar
just goes out.
You should also check that compression is set to 1:1 (menu SSBC = 1-1).

An advantage of using RTTY mode is that there is an independent menu
setting for compression - SSBCr which appears in RTTY mode, so you can
set the compression for SSB different than you do for RTTY mode.

If you do use RTTY mode, you must set up the RTTY filters - at least the
FL1 filter.
Set the RTTY FL1 'width' to OP1, and then set the RTTY FL1 BFO the same
as the LSB FL1 BFO.
Go to RTTY rev (hold the REV button) and set the RTTYr FL1 BFO the same
as the USB FL1 BFO.

You may also want to set RTTY FL2 - FL4 to more narrow filters and
center the passband at 1000 Hz. Those are good to use if there are
strong nearby stations activating the AGC. You transmit only on the FL1
filter, but you can receive using a more narrow bandwidth.

73,
Don W3FPR

On 7/19/2013 1:11 AM, Ariel Jacala wrote:

aj4tf

Re: [K2] set-up for PSK31

In reply to this post by ny4g

As Don said, you're overdriving your radio. Your signal may have some intermodulation products on it, which might explain why you're not getting any responses. When I see a bad signal I usually DO respond and let the operator know they have a problem with their setup.. as I would hope someone would do for me.

You might try the PSK Reporter website( Google it) which will tell you if your signal is getting out.
You could have a multitude of other issues... you didn't say what type of antenna you were using and if there was any info on whether it had worked in the past.

73, David. AJ4TF

ny4g

Re: [K2] set-up for PSK31

In reply to this post by ny4g

David

Thanks for the tip. It looks like I am being copied by stations listening on PSK Reporter. One as close as 5 miles away and another at 6000 miles. I did as Don has suggested. W4DJW heard me on 20m. Not sure still why I do not get a response. I will ask one of the local hams monitor my signal quality.

Ariel NY4G

Sent from Windows Mail

From: aj4tf
Sent: ‎July‎ ‎19‎, ‎2013 ‎8‎:‎29‎ ‎PM
To: [hidden email]
Subject: Re: [Elecraft] [K2] set-up for PSK31

As Don said, you're overdriving your radio. Your signal may have some
intermodulation products on it, which might explain why you're not getting
any responses. When I see a bad signal I usually DO respond and let the
operator know they have a problem with their setup.. as I would hope someone
would do for me.

You might try the PSK Reporter website( Google it) which will tell you if
your signal is getting out.
You could have a multitude of other issues... you didn't say what type of
antenna you were using and if there was any info on whether it had worked in
the past.

73, David. AJ4TF

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