26/04/2009

Testing pskmail hands on

We have put the boat back into the water. It is a 3 hour drive to the harbour in Uitwellingerga, near Sneek, Friesland, so we took the RV there and stayed a few nights. Actually, having both the boat and the camper is an ideal combination. We can hook up to our own electricity socket and enjoy the electrical floor heating in the camper during cold nights...
The boat needs a new layer of anti-fouling every year. The weather was gorgeous. Blue sky, mid-day temperatures of over 20 degrees C. So this time it was a really relaxed working session. We even had enough paint left from last year, so the usual bike ride to the paint shop in Sneek was unnecessary. Which was good, because my electrical bike (a Sparta ION M) refused to support my efforts. Again. During the 3 years I have it now the computerized electrical system broke down 4 times.
Some neighbours helped with putting the mast up. All in all we had a nice time with lots of opportunity to test the European pskmail system.

boat+camper.jpg


PSKmail operation from the Friesland lake area.

The harbour does have wifi, but only in the restaurant which is 200 meters from our boat. The owner of the harbour does not want to extend the system to cover the whole harbour area, so pskmail is the only way to connect to the internet. I use an inverted L consisting of 10 meters of wire, a fishing rod, and a tuner inside the camper. This works on all pskmail  frequencies from 80-12 meters.
On 80 meters I could work DK4XI-8 easily with 50 Watts. Getting the mail was easy, and the wx broadcasts were received without error. DA5UWG, who is only some 100 km away was not heard at all. Even the twitter updates were relayed without problem (DK4XI-8 has server version 0.8.3).
On 30 meters S54FAA-0 was very strong during the whole day. Unfortunately S54FAA-0 only relays APRS messages, so to get full service I contacted IS0GRB-3. This station could be worked with solid signals also during the whole day. During the morning hours I could also use SM0RWO with nice signals until 9:00 UTC. After that the signal from Sweden disappeared completely. PI4TUE, 200 km away, was not heard.
In the evening of the 24th I could hear C56DL directly from the middle of the atlantic, trying to get a position beacon through. The signal was strong enough, but hardly decodeable throuhg heavy doppler and multipath. The phase of the signal on the digiscope was all over the place. Fo0r this time of the evening THOR22 would be the better mode I guess.
Summing it up, pskmail lived up to its promises. I could get and send my emails whenever I wanted, and my twitter updates and position beacons all made it into the internet. The only thing I really missed was a twitter reader for pskmail, so I could follow the updates.
I have already found the perl code to put it onto the server....

Comments

Nice to read you were on the road again!
Enjoy the weather as it seems to be occasionally very nice these past few weeks.
Now which boat exactly is yours?
73 Mark, PA5MW

Posted by: Mark, PA5MW | 27/04/2009

Actually it is the one to the left of the camper.... it is a 9.30 meters Zeeschouw.

Posted by: Rein, PA0R | 27/04/2009

Thanks Rein for this very interresting report. It gives a overview about the posibilitys and conditions.
Happy PSKmailing es
vy 73 tom DJ4WL

Posted by: Tom DJ4WL | 27/04/2009

I am Jerry Hatchett, N8NZF, 502-229-1613.
550 Duchess Court, Versailles, KY 40383.
I am an EMS HAM and have been using Olivia, which has probably the best 100% copy
at a 14 db noise floor of any HAM mode I know of.
1. What if PSKmail were available as follows:
a. Accepts RSID and all 5 standard Olivia modes (4/125, 8/250, 15/500, 32/1000,
63/2000).
Therefore in the case of poor propagation one could use 4/125 or 63/2000 in the
case of very good propagation, and the station would automatically switch to the
mode sent.
b. With type of system an EMS emergency e-mail could be sent long distances with
excellent copy probability. The "critical message" could get through!

2. How about this possibility?
a. A central EMS station monitors incoming calls as described above.
b. Also, it will only accept calls (HAM call signs) that are in it's data base
and are accompanied with a common pw (or?)
Once the incoming mode, pw & call sign are detected an audio alarm is set off.
c. Of course this could be a mail station in addition.

Note: 1. I believe either or both of these possibilities can be accomplished and would improve EMS work.
2. 80 or 40 meters works best for me.

Thanks for developing PSK mail!
Have a great week!, Jerry N8NZF

Posted by: Jerry Hatchett | 07/07/2009

great artcile!

Posted by: famous logos | 25/07/2009

Very interesting article.

Posted by: Pravesh | 28/07/2009

Must be nice to travel all over the world.. Will have to try it sometime :)

Posted by: grow taller 4 idiots | 31/08/2009

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Posted by: online dissertation help | 14/09/2009

More & more people know that blog are good for every one where we get lots of information any topics !!!

Posted by: penis enlargement | 20/09/2009

I hope the owner of the harbor will finally extend the wifi network and you will not need to do all those difficult manipulations.

Posted by: Johny | 28/09/2009

Johny is SOOOOO right! Finland already has 1MB internet as constitutionl right. I say, WiFi everywhere for everyone!

Posted by: Alex Bystrica | 26/11/2009

Actually pskmail meanwhile uses RSID and any mode including olivia, thor and MFSK, improving connectivity under difficult circumstances...

Posted by: PA0R | 26/11/2009

Although there are so many bad thing in Finland - I do love that country!=)

Posted by: Peter Hungary | 26/12/2009

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