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Re: HABalloon Project


col_bob_bush
 

Hi Jan?
It is totally normal if you look at my screen you will see sometimes?3 copies of packets 100hz apart
This is caused by your receiver overloading by a close by transmitter and making extra images that are usually 20 to 40db less than?the main signal
In the screen capture you may see I am testing 2 transmitters at the moment 2x -13 balloons?

What you need to do is make sure you are on frequency with your receiver and why are you not hearing other wspr stations ...check your beacon antenna? and make sure you use a 50 ohm resistor on your beacon if you do not have it connected to an antenna. And check your wspr receiver antenna you should hear other stations at the same time.
If your beacon has a gps make sure it can see the sky to get the timing correct wspr has to be exactly on the minute to be decoded. Your reports show it is on time but the fact that your radio does not decode other stations shows a problem.
Dave
repeat traces of stations.PNG


On Wed, Nov 25, 2020 at 2:46 PM JanV <jan.vadilijev@...> wrote:
Hi,


any idea why I see two packets on my wspr decoder at the same time 100hz away. But never find my self on map. Do I need an amplifier because I tested two weeks on my
balcony. I saw all but noone else spot me on wsprnet??
image.png

BR Jan

On Mon, Aug 24, 2020 at 9:33 AM Bob Sutton via <zl1rs=[email protected]> wrote:
The cells need to be outside in direct sun.? Indoor light will not work.


On 24/08/2020 6:26 pm, JanV wrote:
Hi?

Anyone have a good suggestion for solar cells and how many need to connect it together?
I have here 20mmx40mm but in a room with light I got only 200mV...

Br Jan


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