Discussion:
Is DXCluster still used?
Andrew P.
2014-10-15 18:15:23 UTC
Permalink
If so, where can one find the radio protocol specification for it? I'm trying to get ready to support the Boy Scouts' Jamboree On The Air, and would like to have a way of finding them some "good" stations to talk to (not being an experienced HF DXer myself). So I can use all the help I can get.

I can see APRS packets that look like
151803zDX: KV3B-2 14mi 313° 18:01 3857.05N 07652.41W
but how do I interpret this? Which station is the DX, and what frequency are they on?

Are there other packet format within APRS for DXcluster reports? Are other non-APRS packet protocols for DXcluster documented anywhere?

Thanks in advance.

Andrew, KA2DDO 
Robert Bruninga
2014-10-15 18:31:31 UTC
Permalink
The original APRSdos had DX cluster modes in it .



See http://aprs.org/APRS-docs/DXCLUSTR.TXT



There might be something useful in there.



bob





*From:* aprssig-bounces-***@public.gmane.org [mailto:aprssig-bounces-***@public.gmane.org] *On
Behalf Of *Andrew P.
*Sent:* Wednesday, October 15, 2014 2:15 PM
*To:* TAPR APRS Mailing List
*Subject:* [aprssig] Is DXCluster still used?



If so, where can one find the radio protocol specification for it? I'm
trying to get ready to support the Boy Scouts' Jamboree On The Air, and
would like to have a way of finding them some "good" stations to talk to
(not being an experienced HF DXer myself). So I can use all the help I can
get.



I can see APRS packets that look like
151803zDX: KV3B-2 14mi 313° 18:01 3857.05N 07652.41W
but how do I interpret this? Which station is the DX, and what frequency
are they on?



Are there other packet format within APRS for DXcluster reports? Are other
non-APRS packet protocols for DXcluster documented anywhere?



Thanks in advance.



Andrew, KA2DDO
Andrew P.
2014-10-15 18:41:01 UTC
Permalink
I already read that document. It talks about the views in APRSdos and how to configure it to handle PacketCluster messages, but it doesn't explain the protocol syntax of the packets themselves.



-------- Original message --------
From: Robert Bruninga <bruninga-***@public.gmane.org>
Date:10/15/2014 14:31 (GMT-05:00)
To: TAPR APRS Mailing List <aprssig-***@public.gmane.org>
Subject: Re: [aprssig] Is DXCluster still used?

The original APRSdos had DX cluster modes in it .



See http://aprs.org/APRS-docs/DXCLUSTR.TXT



There might be something useful in there.



bob





*From:* aprssig-bounces-***@public.gmane.org [mailto:aprssig-bounces-***@public.gmane.org] *On
Behalf Of *Andrew P.
*Sent:* Wednesday, October 15, 2014 2:15 PM
*To:* TAPR APRS Mailing List
*Subject:* [aprssig] Is DXCluster still used?



If so, where can one find the radio protocol specification for it? I'm
trying to get ready to support the Boy Scouts' Jamboree On The Air, and
would like to have a way of finding them some "good" stations to talk to
(not being an experienced HF DXer myself). So I can use all the help I can
get.



I can see APRS packets that look like
151803zDX: KV3B-2 14mi 313° 18:01 3857.05N 07652.41W
but how do I interpret this? Which station is the DX, and what frequency
are they on?



Are there other packet format within APRS for DXcluster reports? Are other
non-APRS packet protocols for DXcluster documented anywhere?



Thanks in advance.



Andrew, KA2DDO
Randy Love
2014-10-15 19:33:19 UTC
Permalink
Andrew,

That status packet isn't DX in the same way as a DX cluster posts DX spots.

That packet just mean that KV3B-1 was the most distant station that was
heard directly on the frequency at whichever station generated that status
packet.

DX clusters take input from stations that are working DX stations and
contain the call and the frequency that the DX station was contacted/heard
on. It will give you an idea of what DX stations are heard and where based
on the call of the station submitting the spot.

Most DX clusters are connected to via telnet session or software these days
instead of over packet links.

Once you establish a connection, you should immediately start to see DX
Spots from all over the world. A DX Spot looks something like this:

DX de K1BI 14190.0 JA1ABC 20/9 big signal 0750Z

the spot tells you that K1BI worked JA1ABC on 20m (at 14.190MHz) at 0750 Z.
Want to work the JA too? Just dial up the frequency, listen for him and
then call him. That's all there is to it -

It takes a little getting used to, but once you get the format, you can
interpret it ( or, in your case, probably write a java program to parse it
and make it look pretty. :) )

A list of available telnet dx clusters can be found here:
http://www.ng3k.com/misc/cluster.html


Randy
WF5X
Post by Andrew P.
I already read that document. It talks about the views in APRSdos and how
to configure it to handle PacketCluster messages, but it doesn't explain
the protocol syntax of the packets themselves.
-------- Original message --------
Date:10/15/2014 14:31 (GMT-05:00)
Subject: Re: [aprssig] Is DXCluster still used?
The original APRSdos had DX cluster modes in it .
See http://aprs.org/APRS-docs/DXCLUSTR.TXT
There might be something useful in there.
bob
Behalf Of *Andrew P.
*Sent:* Wednesday, October 15, 2014 2:15 PM
*To:* TAPR APRS Mailing List
*Subject:* [aprssig] Is DXCluster still used?
If so, where can one find the radio protocol specification for it? I'm
trying to get ready to support the Boy Scouts' Jamboree On The Air, and
would like to have a way of finding them some "good" stations to talk to
(not being an experienced HF DXer myself). So I can use all the help I can
get.
I can see APRS packets that look like
151803zDX: KV3B-2 14mi 313° 18:01 3857.05N 07652.41W
but how do I interpret this? Which station is the DX, and what frequency
are they on?
Are there other packet format within APRS for DXcluster reports? Are other
non-APRS packet protocols for DXcluster documented anywhere?
Thanks in advance.
Andrew, KA2DDO
_______________________________________________
aprssig mailing list
http://www.tapr.org/mailman/listinfo/aprssig
Andrew P.
2014-10-15 22:07:49 UTC
Permalink
Ah. Thanks for the info, Randy. I was hoping to find an RF-accessible DX cluster in my area, so I could monitor or connect to it from the Scouts' campground (where I don't have a landline Internet connection). Lets hope my mobile Internet hotspot can reach some towers from camp.

Andrew, KA2DDO -------- Original message --------
From: Randy Love <rlove31-***@public.gmane.org>
Date:10/15/2014 16:04 (GMT-05:00)
To: TAPR APRS Mailing List <aprssig-***@public.gmane.org>
Subject: Re: [aprssig] Is DXCluster still used?

Andrew,

That status packet isn't DX in the same way as a DX cluster posts DX spots.

That packet just mean that KV3B-1 was the most distant station that was
heard directly on the frequency at whichever station generated that status
packet.

DX clusters take input from stations that are working DX stations and
contain the call and the frequency that the DX station was contacted/heard
on. It will give you an idea of what DX stations are heard and where based
on the call of the station submitting the spot.

Most DX clusters are connected to via telnet session or software these days
instead of over packet links.

Once you establish a connection, you should immediately start to see DX
Spots from all over the world. A DX Spot looks something like this:

DX de K1BI 14190.0 JA1ABC 20/9 big signal 0750Z

the spot tells you that K1BI worked JA1ABC on 20m (at 14.190MHz) at 0750 Z.
Want to work the JA too? Just dial up the frequency, listen for him and
then call him. That's all there is to it -

It takes a little getting used to, but once you get the format, you can
interpret it ( or, in your case, probably write a java program to parse it
and make it look pretty. :) )

A list of available telnet dx clusters can be found here:
http://www.ng3k.com/misc/cluster.html


Randy
WF5X
Post by Andrew P.
I already read that document. It talks about the views in APRSdos and how
to configure it to handle PacketCluster messages, but it doesn't explain
the protocol syntax of the packets themselves.
-------- Original message --------
Date:10/15/2014 14:31 (GMT-05:00)
Subject: Re: [aprssig] Is DXCluster still used?
The original APRSdos had DX cluster modes in it .
See http://aprs.org/APRS-docs/DXCLUSTR.TXT
There might be something useful in there.
bob
Behalf Of *Andrew P.
*Sent:* Wednesday, October 15, 2014 2:15 PM
*To:* TAPR APRS Mailing List
*Subject:* [aprssig] Is DXCluster still used?
If so, where can one find the radio protocol specification for it? I'm
trying to get ready to support the Boy Scouts' Jamboree On The Air, and
would like to have a way of finding them some "good" stations to talk to
(not being an experienced HF DXer myself). So I can use all the help I can
get.
I can see APRS packets that look like
151803zDX: KV3B-2 14mi 313° 18:01 3857.05N 07652.41W
but how do I interpret this? Which station is the DX, and what frequency
are they on?
Are there other packet format within APRS for DXcluster reports? Are other
non-APRS packet protocols for DXcluster documented anywhere?
Thanks in advance.
Andrew, KA2DDO
_______________________________________________
aprssig mailing list
http://www.tapr.org/mailman/listinfo/aprssig
Randy Love
2014-10-15 22:12:33 UTC
Permalink
I have, in the past, used a program that injects DX cluster packets into my
local AGWPE connection.
If I can find that, there's no reason that it couldn't interface with AGWPE
or some other sound modem and you could send them locally via an RF packet
freq.

What area are you in? There may be an RF DX cluster already on in your
area. We'd just have to do a little digging.

Randy
WF5X
Post by Andrew P.
Ah. Thanks for the info, Randy. I was hoping to find an RF-accessible DX
cluster in my area, so I could monitor or connect to it from the Scouts'
campground (where I don't have a landline Internet connection). Lets hope
my mobile Internet hotspot can reach some towers from camp.
Andrew, KA2DDO
-------- Original message --------
Date:10/15/2014 16:04 (GMT-05:00)
Subject: Re: [aprssig] Is DXCluster still used?
Andrew,
That status packet isn't DX in the same way as a DX cluster posts DX spots.
That packet just mean that KV3B-1 was the most distant station that was
heard directly on the frequency at whichever station generated that status
packet.
DX clusters take input from stations that are working DX stations and
contain the call and the frequency that the DX station was contacted/heard
on. It will give you an idea of what DX stations are heard and where based
on the call of the station submitting the spot.
Most DX clusters are connected to via telnet session or software these
days instead of over packet links.
Once you establish a connection, you should immediately start to see DX
DX de K1BI 14190.0 JA1ABC 20/9 big signal 0750Z
the spot tells you that K1BI worked JA1ABC on 20m (at 14.190MHz) at 0750
Z. Want to work the JA too? Just dial up the frequency, listen for him and
then call him. That's all there is to it -
It takes a little getting used to, but once you get the format, you can
interpret it ( or, in your case, probably write a java program to parse it
and make it look pretty. :) )
http://www.ng3k.com/misc/cluster.html
Randy
WF5X
I already read that document. It talks about the views in APRSdos and how
to configure it to handle PacketCluster messages, but it doesn't explain
the protocol syntax of the packets themselves.
-------- Original message --------
Date:10/15/2014 14:31 (GMT-05:00)
Subject: Re: [aprssig] Is DXCluster still used?
The original APRSdos had DX cluster modes in it .
See http://aprs.org/APRS-docs/DXCLUSTR.TXT
There might be something useful in there.
bob
Behalf Of *Andrew P.
*Sent:* Wednesday, October 15, 2014 2:15 PM
*To:* TAPR APRS Mailing List
*Subject:* [aprssig] Is DXCluster still used?
If so, where can one find the radio protocol specification for it? I'm
trying to get ready to support the Boy Scouts' Jamboree On The Air, and
would like to have a way of finding them some "good" stations to talk to
(not being an experienced HF DXer myself). So I can use all the help I can
get.
I can see APRS packets that look like
151803zDX: KV3B-2 14mi 313° 18:01 3857.05N 07652.41W
but how do I interpret this? Which station is the DX, and what frequency
are they on?
Are there other packet format within APRS for DXcluster reports? Are other
non-APRS packet protocols for DXcluster documented anywhere?
Thanks in advance.
Andrew, KA2DDO
_______________________________________________
aprssig mailing list
http://www.tapr.org/mailman/listinfo/aprssig
_______________________________________________
aprssig mailing list
http://www.tapr.org/mailman/listinfo/aprssig
Randy Love
2014-10-15 23:19:45 UTC
Permalink
UI-DX Bridge

http://www.apritch.myby.co.uk/addon_agw.htm
http://www.apritch.myby.co.uk/uidx.htm

Needs AGWPE or compatible interface to send via RF.

WF5X
Post by Randy Love
I have, in the past, used a program that injects DX cluster packets into
my local AGWPE connection.
If I can find that, there's no reason that it couldn't interface with
AGWPE or some other sound modem and you could send them locally via an RF
packet freq.
What area are you in? There may be an RF DX cluster already on in your
area. We'd just have to do a little digging.
Randy
WF5X
Post by Andrew P.
Ah. Thanks for the info, Randy. I was hoping to find an RF-accessible DX
cluster in my area, so I could monitor or connect to it from the Scouts'
campground (where I don't have a landline Internet connection). Lets hope
my mobile Internet hotspot can reach some towers from camp.
Andrew, KA2DDO
-------- Original message --------
Date:10/15/2014 16:04 (GMT-05:00)
Subject: Re: [aprssig] Is DXCluster still used?
Andrew,
That status packet isn't DX in the same way as a DX cluster posts DX spots.
That packet just mean that KV3B-1 was the most distant station that was
heard directly on the frequency at whichever station generated that status
packet.
DX clusters take input from stations that are working DX stations and
contain the call and the frequency that the DX station was contacted/heard
on. It will give you an idea of what DX stations are heard and where based
on the call of the station submitting the spot.
Most DX clusters are connected to via telnet session or software these
days instead of over packet links.
Once you establish a connection, you should immediately start to see DX
DX de K1BI 14190.0 JA1ABC 20/9 big signal 0750Z
the spot tells you that K1BI worked JA1ABC on 20m (at 14.190MHz) at 0750
Z. Want to work the JA too? Just dial up the frequency, listen for him and
then call him. That's all there is to it -
It takes a little getting used to, but once you get the format, you can
interpret it ( or, in your case, probably write a java program to parse it
and make it look pretty. :) )
http://www.ng3k.com/misc/cluster.html
Randy
WF5X
I already read that document. It talks about the views in APRSdos and how
to configure it to handle PacketCluster messages, but it doesn't explain
the protocol syntax of the packets themselves.
-------- Original message --------
Date:10/15/2014 14:31 (GMT-05:00)
Subject: Re: [aprssig] Is DXCluster still used?
The original APRSdos had DX cluster modes in it .
See http://aprs.org/APRS-docs/DXCLUSTR.TXT
There might be something useful in there.
bob
Behalf Of *Andrew P.
*Sent:* Wednesday, October 15, 2014 2:15 PM
*To:* TAPR APRS Mailing List
*Subject:* [aprssig] Is DXCluster still used?
If so, where can one find the radio protocol specification for it? I'm
trying to get ready to support the Boy Scouts' Jamboree On The Air, and
would like to have a way of finding them some "good" stations to talk to
(not being an experienced HF DXer myself). So I can use all the help I can
get.
I can see APRS packets that look like
151803zDX: KV3B-2 14mi 313° 18:01 3857.05N 07652.41W
but how do I interpret this? Which station is the DX, and what frequency
are they on?
Are there other packet format within APRS for DXcluster reports? Are
other non-APRS packet protocols for DXcluster documented anywhere?
Thanks in advance.
Andrew, KA2DDO
_______________________________________________
aprssig mailing list
http://www.tapr.org/mailman/listinfo/aprssig
_______________________________________________
aprssig mailing list
http://www.tapr.org/mailman/listinfo/aprssig
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