[Lowfer] ZL6QH beacon tests 21 September

[Vernall]

ZL6QH 137.7888 kHz BEACON TEST ON 21 SEPTEMBER

ZL6QH will be carrying out beacon tests on 21 September, starting before =
local sunset and going all night, till after local sunrise.  Hours of =
local darkness for ZL6QH are from nominally 0610 UTC (sunset) to 1813 =
UTC (sunrise).

 Dual frequency keying will be used, with 0.4 Hz frequency shift.  The =
coding is for an ID character of Q, sent as hi, hi, lo, hi, key up.  =
This code cycle is sent repeatedly.

   hi =3D 137.7890 kHz

   lo =3D 137.7886 kHz

Each element is 120 seconds (dot length) so sending a Q takes 10 =
minutes. Each Q will start on the hour, and also keep close to 10 minute =
cycles, which could be useful for analysis of difficult reception =
situations during a short lift in propagation.

Listening out with a receiver set to 137.7888 kHz centre frequency and =
using Argo software to process demodulated audio fed to a PC sound card =
is the recommended way to try for DX reception.  As Argo displays only =
2.6 Hz bandwidth for 120 second dot lengths, careful setting of receiver =
and sound card frequency is needed to arrange for 137.7888 kHz to be =
near the centre of the displayed output.

Reception reports can be emailed to vernall@xtra.co.nz or posted to the =
reflector.

Good luck to all listeners.

73, Bob ZL2CA



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