[Lowfer] WSPR for Dec.14-15
Eric NO3M
no3m at no3m.net
Sat Dec 15 16:38:32 EST 2012
The sidebands reported via WSPR came out around -22Hz, -11Hz, +13
Hz, +25 Hz; John/EAR may also want to bypass the audio DSP unit
and see what difference that contributes. The WSPR software will
handle the "audio" filtering. The TS440 SSB filtering (1.8 - 2.8
kHz) should be fine unless you have overloading signals outside
of the WSPR "window" causing receiver blocking/de-sense.
73 - Eric NO3M, WG2XJM
On 12/15/12 16:24, John Andrews wrote:
> All,
>
> I have frequently had a problem here with WSPR on 2200M with
> the strong 60 Hz related lines at this QTH. This results in
> multiple signals and false decodes. Thus far there is no cure,
> as the sources are at neighbors' houses. I would suggest not
> running a noise blanker in your receiver, though.
>
> Note that I have generally not had this issue at 600M, which is
> quieter here, 60 Hz-wise. But there I have to live with PDM
> crud from a nearby broadcast transmitter. Guess you can't have
> everything...
>
> John, W1TAG
>
>
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