[Lf] QRSS is a full success in USA

[Andre' Kesteloot]

"'Geri' Kinzel, DK8KW" wrote:

> Hello LF-Group,
>
> last night (couldn't sleep and was looking out for VE1ZZ ...) I looked a
> little bit over the fence and read some of the LowFer's messages. Obviously
> QRSS has found wide acceptance in the US now and, considering the 1 Watt tx
> input (!) and 50 ft antenna length limitations, remarkable distances of
> over 1000 miles have been achieved using this technique.
>
> You find some of those messages under:
>
>         http://www.qth.net/archive/lowfer/lowfer.html
>
> Lyle, K0LR (the "king of LowFers" as someone called him in a message) has
> compared various modes, (mixing a signal with real noise) and came to the
> following conclusions:
>
> - normal CW (12 WPM)            -18 dB (level below a certain reference
> level)
> - PSK31                                 -15 dB
> - BPSK (MS25)                   -18 dB
> - BPSK (MS100 ET1)                      -24 dB
> - BPSK (MS1000)                 -33 dB (howver: long time needed to
> synchronize)
> - MFSK8                         -18 dB
> - QRSS (0.4 WPM, with Spectran) -27 dB
> - QRSS (0.4 WPM, with CRUNCH)   -33 dB
>
> you can find more about this test under:
>
>         http://www.computerpro.com/~lyle/weaksigs/weaksigs.htm
>
> Les, N1LF (nice callsign!) is now a strong supporter of QRSS, what Dave,
> G3YXM provides for us (always the latest LF-news, under
> http://www.wireless.org.uk/index.htm), Les provides for the LowFer beacon
> community in the US (http://www.highnoonfilm.com/xmgr/)
>
> Best 73
>
> Geri, DK8KW (W1KW)