[Lowfer] Unknown signal/modulation on 475 kHz

[Andy - KU4XR]

QRSS-45 speed, but is actually FSK with an 850 Hz shift - upper frequency carries the information .. 
When I turned the rig on this evening and was busted with a S9 +15 carrier it took seconds for me to figure out
what and where the Interference is coming from..

73 all:

Andy - KU4XR
--------------------------------------------
On Wed, 7/11/18,  <wa3tts at verizon.net> wrote:
 
 Garry: WA4SZE posted to KST chat
 the other day that he would be on 475 kHz in beacon mode TFN
 (til further notice?)
 
 I
 have heard a carrier on 475 with an occasional CW ID that is
 strongest here to SW after dusk...although I do not
 generally hang around long enough to figure out 
 
 what he is doing.  Likely
 best to ignore it....
 
 73
 Mike wa3tts
 
 
 -----Original Message-----
 From: Garry <k3siw at sbcglobal.net>
 
 Last night, in
 addition to 474.2 kHz wspr2 and K9KFR JT9 signals and 
 KU4XR on 477 kHz Op8, two strong signals were
 seen here seemingly 
 sending QRSS. But I
 tuned the one on 475 kHz and found it was not QRSS, 
 nor was it Opera (see attachment). The dot
 transmissions lasted a bit 
 over 10 seconds
 long. The other signal was on about 475850 Hz and 
 appeared to be sending a similar short/long
 keying sequence with dead 
 times between the
 keyups. Does anyone know what this modulation scheme is?
 ---
 73, Garry, K3SIW, EN52ta,
 Elgin, IL