891 KHz

waterfall diagrams received in Handewitt, Germany on 20/01/2017

by Peer-Axel Kroeske, DL2LBP

KHz	+/-	FMLIST last measured	times	fade	strength	station	remarks
890.9895	0.2(1w)		0300-2100	15:05	o	EBC Ethiopia 100kW	sudden switch off on 21/1 before 04 UTC, restart a little later on 890.9968 ?
890.9923	0.5		2140-1700	14-02	o	R.Thailand Saraburi 1000 KW
890.9972	0.2(0.5w)		0300-	-05	o	Sinjah, Sudan 50 KW	only 20th
890.9986	0	890.9986	24h	16-08	o	Radio Sim, Portugal 3KW
890.9988	0		-18	06-08 15-	--		06-08 long path or two different stations?
890.9991	0	890.9993	03-	-09	+	TRT Antalya
890.9991	0			15-18	--		too weak for Turkey (and too late)
890.9992	0		0930:1400		+		pirate?
890.9996	0.5f		16-00?	--
891.0000	0		24h	14-05	+	Radio Dena, Iran	2 transmitters, also Japan on 0000
891.0002	0.2		-0150(on 20th)	17-0330?	o	Lesotho?
891.0005	1f	890.0004		18-00	-
891.0005	0			20-22	--	HLKB KBS 1 Korea 250 KW	reported .000-.001
891.0015	0.2			14-20	-	5AN Adelaide, Australia
891.0037	0.2	891.004	0020-1740	14-03	o	AIR North Nampur 20 KW
891.0040	0.2(2w)		2050-1705	14-02	o	Ningxia, China 200 KW	strong drift on warm-up 2050
890.9942 and lower cluster 1.95 Hz	0		2050-1705	14-01	-	Ningxia
890.9968 and lower cluster 0.9 Hz	0		2100-1705	14-01	-	Ningxia

clusters: Mauno received audio from Nigxia News Radio (1x 200 KW + 3x 10KW), with echoes disappearing when one cluster went off. It is definitely not the carrier on 890.9923 KHz which is being switches on a little later.
890.9923 appears to be there 24h. But I suppose the weak line during daytime comes from some local device.
890.9992 daytime: Will there be low power permissions in the Netherlands now that Hulsberg is off? Maybe someone is already preparing for that looking at those daytime signals switching on and off. Or just an ordinary pirate...
Some expected stations missing: Algeria was off, Sudan probably also that day. But what about the other Chinese networks? All on 891.0000? There are 4 different programmes listed. And Nigxia News Radio has a co-channel network with 5 transmitters.
The two weak drifters could be from the Phillipines or Indonesia (2 transmitters each)

f=fast drift, p=propagation effects, : interrupted by night break, w=only at warm up/switch on view offset frequency list & 24h graph at fmscan.org

0891khz_170120_23-07z_9692-0303

0891khz_170120_16-00z_9692-0303

0891khz_170120_08-16z_9692-0303

0891khz_170120_00-08z_9692-0303

all screenshots taken with the superb and free Spectrum Lab software