Fun with WSPR

Fun with WSPR

I have sent out some emails reporting my success and the success of other hams in making DX contacts using unbelievably low transmit power levels.  There was some interest in this so I thought I would briefly provide some background to jump start you.

What is it?

The Weak Signal Propagation Reporter Network is a group of amateur radio operators using K1JT’s MEPT_JT digital mode to probe radio frequency propagation conditions using very low power (QRP/QRPp) transmissions. The software is open source, and the data collected are available to the public through this site.  http://wsprnet.org/drupal/ Go to the website, click on the map tab, select a band (below the map) and take a look at the action.  Clicking on any call sign will show you who is receiving that station and who he is receiving.

Where do I get it?

Program and documentation downloads are available here  http://physics.princeton.edu/pulsar/K1JT/wspr.html

If you have not done this before, read the documentation.  J

When can I start having fun?

First of all, my experience has been that the set-up is really easy and, if you are already working digital modes you can start WSPRing (pronounced whispering) in just a few minutes.

A few tips:

  • Use a rig with a TCXO, good stability and calibration (i.e. check against WWV)
  • Use a rig with CAT control (sorry, that old FT-101 will just give you grief here …)
  • A simple antenna is all that is necessary, of course if you have a big, high antenna results will be  better
  • Install an internet time program in your computer (as per documentation); or go into the Windows time and date and make the clock update once every 15 minutes, or use GPS timing (overkill, but what the heck)
  • If you have a multiband antenna (e.g. an all band vertical, 10-15-20m beam, etc.) you can have more fun.
  • Loop antennas, including magnetic loop antennas that don’t take up much space, work well.  No excuse not to try this mode if you live in an apartment!
  • Please don’t use more than 5 W out.  In this mode QRP starts at 500 mW.
  • I have two screens on my station computer, one showing the WSPR software and the other the map on wsprnet.org

What should I try WSPR?

This mode has given me a much better appreciation of how propagation works.  I found it interesting to watch the signals on a given band change as the gray line approached and then passed overhead.  I learned that a wire antenna and <1 watt can radiate a signal simultaneously heard (from the middle east) both in New Zealand and North America.  I also found out that you can reduce power to ridiculously low levels — I am currently running on 125 mW on 20m and 250 mW on 40 m with good results.   I have “spotted” (i.e. decoded signals from) hams in Europe using 10, 5 and even 1 mW.  The current challenge is to see how far your signals get on 500 micro watts !  (0.5 mW you will need calibrated attenuators in your antenna line to do this).

The ability of the software to dig a narrow band signal out of 30 dB of noise is impressive.  We are lucky to have a Nobel Prize winning physicist (K1JT) writing software for ham radio.

“…to explore strange, new worlds, to seek out new life and new civilizations, to boldly go where no ham has gone before.”

VA6TJ

Ham of the Year recipients

Could everyone please let me know who past recipients of the Ham of the year award have been? I would like to have name, call and year. I am trying to compile a complete list, and have many blanks right now. Thanks! Nancy VA6HOT

ARISSat1 Will not deploy until July 2011

I have been anxiously waiting for the next  launch of ARISSat1 formerly know as SUIT Sat . After working every orbit of the first SUIT Sat in February of 2006 I now have to wait a little longer! The most exciting time of my life as an amateur radio operator was receiving all the transmissions from the badly disabled Suit Sat and decoding the secret words and SSTV picture from the spinning satellite. Hopefully when this new satelite is launched in July 2011 everyone will get the opportunity to receive the weak signals from it.

Please click this link to read and hear the many reports I received along with a few others of the first SUIT Sat

More information and an overview of the new satellite at this link.

For the latest information and news please see the link below.

73 VE6BLD

http://www.arissat1.org/v3/

Australia Floods Queensland Before & After

Thanks VE6MIM and Bart
Australia Floods Queensland Before & After
Slide your mouse horizontally along each photo to see the photo the day before flooding and the same location during the flood the next day

S-Meters

New VE6QE Repeater Controller Upgrade

The club has purchased a new controller from Link Communications to replace the aging and faltering controller we are using now.

The average user won’t hear much difference when you connect  to the VE6QE repeater but in the background there are better improvements.  Things like the actual programming is easier and there are more radio ports to add more link radios. The pix shows the controller and the new UHF hub repeater mounted in a test rack in my shack for programming and testing. The radio at the bottom is going to be a new link that can connect the CAARC system into the SARA system for emergencies…It won’t be on full time like our other linked repeaters but can be connected by DTMF commands when needed… The only thing that is not shown here is the larger DVR (Digital Voice Recorder) that we are using presently on the existing system.  I hope to have it all ready to be installed at the repeater site in the spring. I will be bringing the controller to the next club meeting so if you want to see it you better show up. I will also be bringing some of the older home brew repeaters we have used in the past to compare old repeater building to the newer ones.

Skip, VE6BGT

Sad Announcement

It is with sadness I report (VA6IX) Jack’s  wife Shirley passed away after a lengthy battle with cancer.  The funeral service will be held Saturday, January 15 at 1:30PM at the Church of the Latter Day Saints in Olds.  The church is located at  3802 57 Ave., across the street from the Hospital.  Viewing will be from 12:00 to 1:00PM. Our condolences to Jack and his family.  Shirley will certainly be missed.

CAARC Members Now Able to Post News Items

Paid up CAARC Members are now able to Post Items of interest on this new web site.  Please log in and follow the instructions below.

If you have problems please contact VE6BLD.

Click on “Dashboard” under Logged in:    (HINT)   Click the “Help” button on the top right corner of this

dashboard page for instructions using the “Dashboard”.

Under Posts click” Add New”

Then Add a “Title” and enter your post as you would with a word processor.

On the right side you can “Preview” and or “Publish” when you are ready.

Click the sample post below to see full size..  I will be presenting a training session at an upcoming general meeting.

73 Bob VE6BLD

Welcome to the new and improved web site of the Central Alberta Amateur Radio Club.

Welcome to the new and improved web site of the Central Alberta Amateur Radio Club.

This site will continue to be improved as the webmaster adds more items. Enjoy and have fun!

  • Calendar

    March 2019

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    • Koffee Klatch Join the local Hams for coffee at the A and W in the Village Mall across from Wall Mart on the North hill in Red Deer. .Listen to VE6QE 147.150 MHZ plus 600 for directions. See you there!
    3
    • ARES Net on the CAARC repeater system
    4
    • CAARC 2 Meter NET Please check in to the CAARC net on VE6QE 147.150+ repeater.,VE6VHF 146.91-, VE6PZ 145.210 -, VE6UK 145.25 -...
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    • Koffee Klatch Join the local Hams for coffee at the A and W in the Village Mall across from Wall Mart on the North hill in Red Deer. .Listen to VE6QE 147.150 MHZ plus 600 for directions. See you there!
    10
    • ARES Net on the CAARC repeater system
    11
    • CAARC 2 Meter NET Please check in to the CAARC net on VE6QE 147.150+ repeater.,VE6VHF 146.91-, VE6PZ 145.210 -, VE6UK 145.25 -...
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    • Koffee Klatch Join the local Hams for coffee at the A and W in the Village Mall across from Wall Mart on the North hill in Red Deer. .Listen to VE6QE 147.150 MHZ plus 600 for directions. See you there!
    17
    • ARES Net on the CAARC repeater system
    18
    • CAARC 2 Meter NET Please check in to the CAARC net on VE6QE 147.150+ repeater.,VE6VHF 146.91-, VE6PZ 145.210 -, VE6UK 145.25 -...
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    • CAARC General Meeting At Red Deer County Firehall # 6
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    • Koffee Klatch Join the local Hams for coffee at the A and W in the Village Mall across from Wall Mart on the North hill in Red Deer. .Listen to VE6QE 147.150 MHZ plus 600 for directions. See you there!
    24
    • ARES Net on the CAARC repeater system
    25
    • CAARC 2 Meter NET Please check in to the CAARC net on VE6QE 147.150+ repeater.,VE6VHF 146.91-, VE6PZ 145.210 -, VE6UK 145.25 -...
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    • Koffee Klatch Join the local Hams for coffee at the A and W in the Village Mall across from Wall Mart on the North hill in Red Deer. .Listen to VE6QE 147.150 MHZ plus 600 for directions. See you there!
    31
    • ARES Net on the CAARC repeater system
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