Check the Activity section of the WSPRnet.org site: you can see which
slots stations are occupied. Also, check the received signals on your
display and select a vacant spot.
But it doesn't matter very much-- wspr station transmissions occur at
random intervals so that stations on the same frequency will not
consistently interfere with each other. This assumes everyone has
selected a reasonable Tx Fraction, not 100%.
73,
Drew
AF2Z
On 10/06/20 06:21, Victor Rosenthal 4X6GP wrote:
> When you configure a WSPR transmitter, how do you decide what is the
> best frequency to use within the 200 Hz. WSPR range? I looked at the
> spot database and nothing jumped out at me.
>
> Further details: I just assembled a QRP Labs U3S standalone WSPR
> transmitter, with a GPS receiver. I will probably start on 30m because
> that is the band that is available when all the relays in my antenna
> switching system are open, so it will be easy to let it run while the
> rest of my station is off.
>
> Sorry for the OT post, but there are lots of smart guys out there!
> Answers can be off list.
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