K3EXREF

[zl4vv]

If you want to participate in the WSPR project you need to be within 1Hz.

73

Max/ZL4VV

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[Bruce Beford-2]

> If you want to participate in the WSPR project you need to be within 1Hz.
> 73
> Max/ZL4VV
 
Actually, No. You just want to -drift- less than one Hertz during your
transmission period. Absolute accuracy is not required. A stable transmitter
is.
73,
Bruce, N1RX
 

 

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[Tony Estep]

Right. The WSPR receive window is a couple of hundred hz wide. Your freq
doesn't have to be accurate, but your clock should be within a second of the
right time.

BTW, you can use WSPR to calibrate your rx and measure freq within a hz or
so; Dr. Taylor's instructions are in the latest documentation.

The various JT modes and the ideas behind them are a massive contribution to
amateur radio. It's cool to share your hobby with Nobel winners.

Tony KT0NY


On Sun, Mar 20, 2011 at 5:35 PM, Bruce Beford
<[hidden email]>wrote:

> ...You just want to -drift- less than one Hertz during your
> transmission period. Absolute accuracy is not required....
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