Pre-filtering of input-data for the Activity-frequency listing (requested)

2 posts / 0 new
Last post
OH1ZAA
Offline
Last seen: 2 days 14 hours ago
Joined: 2008/05/22 - 09:01
Pre-filtering of input-data for the Activity-frequency listing (requested)

Current Activity listings shows the weighted average of
the reported frequency of transmitting WSPR-stations based
on incoming spots. Though the reported frequency varies
quite a lot, "miraculously" the OH3MHA frequency is almost
always 7.040136 MHz in the listed Current Activity table.

However, last night one station was reporting frequencies
with 720 Hz offset above the actual transmitted frequencies,
and therefore OH3MHA was listed as active on 7.040221 as if
it were outside the WSPR band. This means that the 720 Hz
offset was averaged among 9 incoming spots for OH3MHA.

Surely it would help accuracy to filter out clearly erroneous
spots from the frequency averaging scheme even though the
offset spot would be otherwise visible (to allow correction).

Cheers/73, "Zaba" OH1ZAA/OH2MZA