JY4CI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Jordan Most frequent locator attributed to this token: KM71

Receiver-side FT8 activity involving JY4CI, decoded by SO8OO in southeastern Poland. 296 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-05.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 296 FT8 messages attributed to JY4CI as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (36%), followed by 40 m (25%) and 80 m (19%). Several six-hour UTC windows tied for the largest share (74%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

296

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 55 60m · 106 40m · 75 20m · 53 10m · 7

First attributed message: 2026-06-07
Last attributed message: 2026-09-05 17:36 UTC

Observed FT8 message patterns

Attributed sample: 296 messages
Active dates: 17 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -21 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 160, moderate (-15 to -9 dB) 97, strong (≥ -8 dB) 39.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with JY4CI in decoded directed-looking exchanges:

WB6RAB · United States ×2 DL7URH · Fed. Rep. of Germany ×2 DL9KM · Fed. Rep. of Germany ×2 SM5DFM · Sweden ×2 LA0FA · Norway ×2 DH1KJ · Fed. Rep. of Germany ×2 ER3UA · Moldova ×2 5B4ALJ · Cyprus ×2 LZ3BS · Bulgaria ×2 SP6PCB · Poland 9A2AA · Croatia OM5JG · Slovak Republic

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to JY4CI

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: KM71 · 75 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,325 km (approx.)
Last such locator decoded: 2026-09-05 17:10 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	JY4CI S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-05 17:38	40m	- / -	DL4FAA	-24 / -	2	Partial capture
09-05 17:35	40m	- / -	UX7QG	-7 / -	3	Partial capture
09-05 17:34	40m	-14 / -11	F4MMH	-2 / -3	6	✓ Full exchange observed
09-05 17:31	40m	- / -8	UA3DPM	+1 / -	5	✓ Closing fragment
09-05 17:30	40m	- / -13	YO8CVY	+4 / -	3	✓ Closing fragment
09-05 17:29	40m	- / -14	RA3XDX	+2 / -	4	✓ Closing fragment
09-05 17:28	40m	- / 0	SM2LIY	0 / -	7	✓ Closing fragment
09-05 17:27	40m	- / -	EA3HKY	-18 / -	2	Partial capture
09-05 17:27	40m	- / -4	DM8TW	-1 / -	4	✓ Closing fragment
09-05 17:27	40m	- / -	F4MMH	+2 / -	5	Partial capture
09-05 17:25	40m	- / +4	HA1UN	-2 / -	3	✓ Closing fragment
09-05 17:25	40m	- / -12	RG5G	+2 / -	8	✓ Closing fragment
09-05 17:22	40m	- / -8	SP6FME	-8 / -	2	Partial capture
09-05 17:22	40m	- / -	UA3DPM	+1 / -	6	Partial capture
09-05 17:20	40m	-14 / -18	EA5AOP	-23 / -10	5	✓ Full exchange observed
09-05 17:19	40m	- / -	F4MMH	-6 / -	4	Partial capture
09-05 17:19	40m	-10 / -	EA3HKD	- / -16	2	✓ Closing fragment
09-05 17:18	40m	- / -	R6LQU	-5 / -	3	Partial capture
09-05 17:16	40m	- / -	UA3DPM	+5 / -	4	Partial capture
09-05 17:16	40m	-18 / -9	OH5CX	-7 / -18	10	✓ Full exchange observed
09-05 17:15	40m	-10 / -	EA5CQM	-21 / -14	3	✓ Closing observed
09-05 17:14	40m	-10 / -	RA1PO	- / -18	2	✓ Closing fragment
09-05 17:13	40m	-7 / -15	9A3DF	-3 / -	8	✓ Closing observed
09-05 17:12	40m	-10 / -15	EI2CN	0 / -	5	✓ Closing observed
09-05 17:12	40m	- / -1	SE2P	+5 / -	20	✓ Closing fragment
09-05 17:11	40m	-12 / -6	OE3KLU	+15 / -3	18	✓ Full exchange observed
09-05 17:11	40m	- / -	SP6FME	-6 / -	2	Partial capture
09-05 17:10	40m	-11 / -	RC5F	+7 / -12	5	✓ Closing observed
09-05 17:10	40m	- / -9	YO8AAZ	+1 / -	44	Partial capture
09-05 17:09	40m	-13 / -10	T77NC	-4 / -18	6	✓ Full exchange observed
09-05 17:07	80m	- / -25	YC9HJD	+6 / -	4	Partial capture
09-05 17:04	80m	- / -13	IZ8VYU	+4 / -	2	Partial capture
09-05 17:03	80m	- / -18	R2AVW	-14 / -	3	Partial capture
09-05 17:03	80m	- / -	RK6MC	-4 / -	2	Partial capture
09-02 19:25	60m	- / -12	LY7Z	0 / -	3	Partial capture
09-02 19:23	60m	- / -	DG4BZ	-8 / -	4	Partial capture
09-02 19:19	60m	- / -12	LY7Z	-7 / -	7	Partial capture
08-31 19:48	60m	- / -	DL2AXA	0 / -	3	Partial capture
08-31 19:47	60m	- / -	9A7Y	+8 / -	2	Partial capture
08-31 19:44	60m	- / -15	9A3QO	-10 / -	2	Partial capture
08-31 19:42	60m	- / -14	F8PDR	+1 / -	3	✓ Closing fragment
08-31 19:39	60m	- / -	IK8PGE	-5 / -	3	✓ Closing fragment
08-31 19:39	60m	- / -11	IZ6ERS	-8 / -	2	Partial capture
08-31 19:35	60m	- / -11	CT7AUT	-13 / -	3	Partial capture
08-31 19:34	60m	- / -18	F/PA2JWN	-1 / -	7	✓ Closing fragment
08-31 19:33	60m	- / -11	IK2DZN	-9 / -	11	✓ Closing fragment
08-31 19:32	60m	- / -16	SM5DFM	-7 / -	4	✓ Closing fragment
08-31 19:31	60m	- / -23	SP9BGL	+7 / -	4	✓ Closing fragment
08-31 19:30	60m	-20 / -10	LZ1SAD	+4 / -5	11	✓ Full exchange observed
08-31 19:30	60m	- / -	OM5JG	+5 / -	15	Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m

UTC    dB Audio  Message
173345  +4 1943  JY4CI YO8AAZ KN36
173345  +1 1877  JY4CI UA3DPM 73
173415  +0 1943  JY4CI YO8AAZ R-09
173445  -3 2476  JY4CI F4MMH JN18 (x2)
173530 -15 1501  F4MMH JY4CI -03
173545  -6 1502  JY4CI UX7QG KO50
173545  +3 2476  JY4CI F4MMH R-11
173600 -14 1501  F4MMH JY4CI RR73
173615  -8 1502  JY4CI UX7QG KO50
173615  -1 2476  JY4CI F4MMH 73
173645 +10  538  JY4CI SQ6ELK -10
173815  -6 1502  JY4CI UX7QG KO50
173845 -24 1502  JY4CI DL4FAA JO40 (x2)

80m

UTC    dB Audio  Message
232915  -9 1144  JY4CI R7BN R-13
232945  -4 1191  JY4CI OM5TA JN97
232945 -18 2340  JY4CI RT5R LO02
233015  -7 1190  JY4CI OM5TA JN97
170315 -13  757  JY4CI R2AVW -18
170315  -2 1429  JY4CI RK6MC KN97 (x2)
170445  +3 1563  JY4CI IZ8VYU JN71
170515 -15  757  JY4CI R2AVW -20
170515  +4 1563  JY4CI IZ8VYU R-13
170615 -14  756  JY4CI R2AVW -20
170745  +1 1553  JY4CI YC9HJD OI81 (x4)

60m

UTC    dB Audio  Message
191830 -17 1477  CQ JY4CI KM71
191945 -10 1766  JY4CI LY7Z -12 (x7)
192315 -10 1255  JY4CI DG4BZ JO42 (x4)
192545  -1 1267  JY4CI LY7Z -12 (x3)

20m

UTC    dB Audio  Message
175715  -9 1897  JY4CI G4PZW JO02 (x2)
153245 -17 1402  CR5VP JY4CI R-16 (x2)
153345  -4 1402  EV6Z JY4CI R-05
153545 -15 1401  YO9PH JY4CI R-15 (x2)
153745 -14 1401  TA1KYN JY4CI KM71 (x3)
044415 -15 1582  RI1FJL JY4CI KM71 (x2)
044630 -15  467  JY4CI RI1FJL -08 (x2)
044715  -8 1581  RI1FJL JY4CI 73

10m

UTC    dB Audio  Message
173115 -10 1522  JY4CI PA1GLD JO21
173145  -4  865  JY4CI IK1LJO JN45 (x3)
173315 -23 1390  JY4CI EA3AWT -21 (x3)
173845 -18 1292  JY4CI HB3YQY +01 (x2)
174045 -10 1327  JY4CI IK1HJS +04
174045  -5  894  JY4CI GX0ERG 73
174115 -12 1327  JY4CI IK1HJS +04 (x2)
174615 -21 1323  JY4CI M6GPH IO83 (x2)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

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