Hi, On 12/5/18 3:47 PM, Attila Kinali wrote: > On Wed, 5 Dec 2018 06:29:01 -0800 > "Richard (Rick) Karlquist" <[email protected]> wrote: > >> 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 it is. Allouis is a former LW band radio station, > which the French used as time signal station as well[1]. > But that also means that it is a much stronger transmitter > than e.g. DCF77 (2MW vs 50kW if wikipedia is correct)
I think I recall that they where running Allouis at half power, but then 1 MW is not all bad. Looking at it using a Kiwi receiver just north of Stockholm, it comes in nice and clean with 100 Hz sidebands from what looks like a PM whose 4th sideband is nearly suppressed, so is 8th, 12/13, 21... so slightly more that 4th and multiples. The fun part is that I coould very quickly check this sitting with my laptop at work, remote sensing and SDR at it's finest. It would be fun to develop some extensions for KiwiSDR. The Loran-C/Chayka plug-in does not calculate position, so already there would be some fun little mini-project to attempt. Cheers, Magnus > Attila Kinali > > [1] https://en.wikipedia.org/wiki/Allouis_longwave_transmitter > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
