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TOPIC: 5MHz BEACON and PROPAGATION STUDY

Re: 5MHz BEACON and PROPAGATION STUDY 2 years 4 months ago #1849

  • ZS6SGM
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Hi All,

Paul ZS6EHG and myself have done the calibrations and setup on the ZS6KTS beacon for the 60m activity weekend.

We would like to advise you on the audio frequencies of the modes we are going to use.

1. WSPR. Will transmit every 8-12 mins. Audio offset 1540Hz
2. PSK-31 - Will transmit on every 9th minute and 20 seconds. Audio offset 1400Hz
3. CW - Will transmit immediately after the PSK. Audio offset nice and low on 1200Hz

If the CW and WSPR transmit at the same time you will still be able to hear the CW below the WSPR.

PLEASE NOTE: The CW speed is currently 8-10 word per minute due to a problem with the programming in the MICRO beacon running the CW. Unfortunately there is nothing we can do about this at the moment. We apologize. The intention was to get the CW down to 5 words per minute.
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Re: 5MHz BEACON and PROPAGATION STUDY 2 years 4 months ago #1847

  • ZS6QL
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Last Edit: 2 years 4 months ago by ZS6QL.
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Re: 5MHz BEACON and PROPAGATION STUDY 2 years 4 months ago #1845

  • ZS6SGM
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Thanks Paul, very simple process!!

I have cross posted your posting to the SARL forum.
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Re: 5MHz BEACON and PROPAGATION STUDY 2 years 4 months ago #1844

  • ZS6EHG
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No need for any interface between your radio and PC/Laptop running WSPR. In the video (link below) , you can hear the WSPR signal but I have experienced decodes where I could only hear static but the laptop was able to decode with no interface by just using the build-in mic.

No built-in mic, no problem you can use any type of microphone and place it close to your radio speaker.
No sound card, external USB sound cards are available at about R60- R100.

It is quite amazing how much noise the WSPR software can handle!!

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Re: 5MHz BEACON and PROPAGATION STUDY 2 years 4 months ago #1841

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Thank you Stephen, that is fantastic. Your decodes give us good test data. You might want to run version 2.21 of WSPR as it has better stability.

Here is the download link for v2.21
wsprnet.org/drupal/node/2341

The April research will be published tomorrow.
73 Stewart
Last Edit: 2 years 4 months ago by ZS6SGM.
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Re: 5MHz BEACON and PROPAGATION STUDY 2 years 4 months ago #1840

  • zs6sky
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Here is a challange to all KARTS Members

Using Stewart ZS6SGM's excellent tutorial, I quickly setup WSPR to receive the KARTS Beacon :)

If I can do it, you can too :) So I challange members to download and setup the WSPR Software for recieving,
Lets support the club in the upcoming 60 Mhz contest, don't leave it too late, now is the time to setup and test.

This picture shows my software receiving the signal in yellow on the left, and decoding the signal in blue on the right
Decoding.jpg


Got some decodes, even thou I'm just down the road

spots.jpg



Get your callsign to appear on the World wide web :cheer:

I challenge you to decode the KARTS Beacon and your software should automatically upload the "Spot" your decode of our beacon to the WSPR Website as below.

web.jpg

Then post a screen shot as above from the WSPR.net activity page. :)

73
Sky
Last Edit: 2 years 4 months ago by zs6sky.
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