On 12/5/18 6:29 AM, Richard (Rick) Karlquist wrote:
On 12/4/2018 6:29 PM, Gilles Clement wrote:
Hi,
In France the carrier frequency is 162khz (Allouis)
Phase modulated over one minute.
Gilles.
Interesting: isn't 162 kHz within the European
Long Wave Broadcast Band? Wouldn't there be a
problem with QRM from these megawatt stations?
Excuse the naive questions; we don't have longwave
in the states, so no experience here.
Indeed. I was just tuning around with some of the Kiwi SDRs suggested by
phk. Front end selectivity or plenty of dynamic range in the ADC would
be important.
I suppose, though, that the integration time is quite long, so from a
"recovering the bits" standpoint, the detection bandwidth can be quite
narrow, and your desired signal might be buried in the grass of the raw
samples.
I also tried to see some 60kHz in the US.. no joy yet.. but I'll load up
the client and see if I can capture some bits.
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