SQ9DXJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JN99

Receiver-side FT8 activity involving SQ9DXJ, decoded by SO8OO in southeastern Poland. 219 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-15.

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 219 FT8 messages attributed to SQ9DXJ as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (47%), followed by 40 m (24%) and 160 m (17%). Most decodes (89%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (79%); the estimated median was -1.1 dB.

Overview

219

Messages attributed

UTC dates decoded

Active 15-min windows

-1.1 dB

Estimated median S/N

Bands

160m · 38 80m · 21 60m · 102 40m · 52 20m · 6

First attributed message: 2026-06-07
Last attributed message: 2026-09-15 21:44 UTC

Observed FT8 message patterns

Attributed sample: 219 messages
Active dates: 14 UTC dates
Estimated median S/N: -1.1 dB
Estimated 10th-90th percentile: -14 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 172.

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 SQ9DXJ in decoded directed-looking exchanges:

TA2ED · Asiatic Turkey ×2 DF5DY · Fed. Rep. of Germany ×2 F1IQH · France ×2 DK8EE · Fed. Rep. of Germany DO3VS · Fed. Rep. of Germany LX1JX · Luxembourg LZ2IP · Bulgaria SP1MGM · Poland SQ2PHC · Poland CN2DX · Morocco DK7UY · Fed. Rep. of Germany DL6KA · Fed. Rep. of Germany

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 SQ9DXJ

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: JN99 · 75 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 206 km (approx.)
Last such locator decoded: 2026-08-17 20:41 UTC

Other locator fields attributed to this token: JO90 (32).

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	SQ9DXJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 21:51	60m	- / -8	DG3TF	-8 / -	4	✓ Closing fragment
09-15 21:46	60m	- / -15	EA5XA	-9 / -	3	✓ Closing fragment
09-14 21:58	60m	-2 / -	W1NG	- / -21	2	Partial capture
09-14 21:55	60m	-1 / -5	SP5MIG	-8 / -	5	✓ Full exchange observed
09-14 21:53	60m	-1 / -5	F5MYK	-7 / 0	5	✓ Full exchange observed
09-14 21:50	40m	- / -14	G0RVY	-4 / -	2	✓ Closing fragment
09-14 21:50	40m	- / -19	RZ6AKF	+3 / -	4	Partial capture
09-14 21:44	40m	- / -3	PE1PBQ	-12 / -	3	✓ Closing fragment
09-14 16:26	40m	0 / -17	EX7CQ	-6 / -1	7	✓ Full exchange observed
09-14 16:23	40m	- / -2	R3DIK/M	+2 / -	2	Partial capture
09-14 16:22	40m	+2 / -	OE8PIT	-8 / -2	6	Partial capture
09-14 16:22	40m	- / -	R3XBS	-6 / -	2	Partial capture
09-14 16:18	40m	0 / +1	DF5DY	+4 / +6	11	✓ Full exchange observed
09-14 16:15	40m	-1 / +1	ON1DGN	-13 / -7	2	Partial capture
09-14 16:14	40m	0 / -3	IT9CBE	-13 / -1	2	Partial capture
09-14 16:11	40m	+4 / +7	SP3SBY	-3 / -2	4	✓ Full exchange observed
09-02 06:24	60m	+6 / -1	SP5EAF	+4 / +10	6	✓ Full exchange observed
09-02 06:21	60m	+2 / -2	DL6ZAJ	-17 / +2	5	✓ Full exchange observed
09-01 21:38	60m	+2 / -	G4SRT	- / -6	2	✓ Closing fragment
09-01 21:36	60m	+6 / -	DL3FAV	- / -5	2	✓ Closing fragment
09-01 21:34	60m	+4 / +4	DF7EF	+14 / -	6	✓ Full exchange observed
09-01 21:34	60m	0 / -4	F1IQH	-15 / -6	5	✓ Full exchange observed
09-01 21:30	160m	-14 / -	4X1UF	- / +2	2	Partial capture
09-01 21:27	160m	-7 / -16	LX1JX	-5 / -19	4	✓ Full exchange observed
09-01 21:23	160m	-9 / -10	LZ2IP	+10 / -	4	✓ Full exchange observed
08-28 09:57	20m	- / -11	M0IEP	-5 / -	3	Partial capture
08-28 09:55	20m	- / +5	TA3NK	+8 / -	3	✓ Closing fragment
08-26 21:21	20m	- / -	DL1R	+12 / -	9	Partial capture
08-26 21:17	40m	- / -	IK0CHU	+1 / -	3	Partial capture
08-26 21:10	40m	- / -9	F5NNN	-5 / -	2	Partial capture
08-26 21:09	40m	- / +4	DL2RUG	-8 / -	3	✓ Closing fragment
08-26 17:30	20m	- / -17	EA3DBZ	-5 / -	4	Partial capture
08-26 17:22	20m	- / -4	F1PPH	-12 / -	2	✓ Closing fragment
08-26 17:21	20m	- / -1	R8CIS	-3 / -	2	Partial capture
08-24 21:19	20m	- / -	BG5BNW	-16 / -	2	Partial capture
08-24 21:16	20m	- / -12	BI3BIE	-14 / -	3	Partial capture
08-24 20:16	20m	- / -14	M0IEP	+6 / -	2	Partial capture
08-23 22:05	20m	- / -	SV5BYP	0 / -	5	Partial capture
08-23 21:14	20m	- / -14	VE3NVK	-15 / -	2	Partial capture
08-23 17:13	20m	- / +2	RU3QR	-16 / -	9	Partial capture
08-23 14:52	20m	- / -	ON4JL	-7 / -	3	Partial capture
08-23 07:23	20m	- / -8	F5NNN	-4 / -	2	✓ Closing fragment
08-19 19:24	20m	- / -	M0IEP	-8 / -	2	Partial capture
08-19 18:38	20m	- / -13	TA2ED	-10 / -	2	✓ Closing fragment
08-17 20:43	60m	+6 / -	K0DG	- / -10	2	Partial capture
08-17 20:40	60m	- / -	DK7MT	-11 / -	3	Partial capture
08-17 20:28	60m	+7 / -	ZZ2DX	- / -12	4	Partial capture
08-17 20:22	60m	0 / -	F4GCB/P	- / -19	2	✓ Closing fragment
08-17 20:20	60m	- / -11	EA1U	-19 / -	7	Partial capture
08-17 20:18	60m	-2 / 0	OZ1LGJ	-12 / -1	3	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
215615 -10  927  SQ9DXJ SP5MIG 73
215630  -8  927  CQ SQ9DXJ JO90 (x2)
215815  +0  927  W1NG SQ9DXJ -21 (x2)
214445 -17 1077  CQ SQ9DXJ JO90
214600 -11 2508  SQ9DXJ EA5XA IM98
214630 -15 1532  SQ9DXJ SN1A JO73
214700  -9 2507  SQ9DXJ EA5XA R-15 (x2)
214930  -7 1576  SQ9DXJ F4AGZ JN38
215100 -11  802  SQ9DXJ DG3TF JO53 (x4)

160m

UTC    dB Audio  Message
212345 -10 1151  LZ2IP SQ9DXJ RR73
212400  +8 1491  SQ9DXJ LZ2IP RR73
212415  -7 1151  CQ SQ9DXJ JO90 (x4)
212715  -9 1151  LX1JX SQ9DXJ -19
212730  -9 2799  SQ9DXJ LX1JX R-16
212745  -5 1151  LX1JX SQ9DXJ RR73
212800  -1 2799  SQ9DXJ LX1JX 73
212815  -3 1151  CQ SQ9DXJ JO90
213030 -17 1151  4X1UF SQ9DXJ +02 (x2)
213215  -5 1151  LZ3YY SQ9DXJ -10
220115 -17  889  CQ SQ9DXJ JO90

40m

UTC    dB Audio  Message
162900  -5 1715  SQ9DXJ EX7CQ R-17
162915  +1  963  EX7CQ SQ9DXJ RR73
162930  -6 1715  SQ9DXJ EX7CQ RR73
162945  +6  963  CQ SQ9DXJ JO90
214430 -13 1082  SQ9DXJ PE1PBQ JO32 (x3)
214700  +5 1084  SQ9DXJ RZ6AKF -19 (x3)
215045  -4  877  SQ9DXJ G0RVY R-14
215115  +4 1083  SQ9DXJ RZ6AKF -19
215115  -4  877  SQ9DXJ G0RVY 73
215145  +2 1083  SQ9DXJ RZ6AKF -10
215215 -17 1058  SQ9DXJ UN7PPV -09

20m

UTC    dB Audio  Message
212230 +15 2657  SQ9DXJ DL1R JN58 (x7)
095530  +4  893  SQ9DXJ TA3NK KM39 (x3)
095730  -5  893  SQ9DXJ M0IEP R-11 (x3)
121330  -5  920  SQ9DXJ TA4SSK KM57
121430 -15 1390  SQ9DXJ UA1AOF KO59

80m

UTC    dB Audio  Message
183345  +6 1258  CQ SQ9DXJ JN99 (x2)
183445  +9 1258  DL9KM SQ9DXJ -05
183500 +10 2512  SQ9DXJ ES2AJ +06
183515  +5 1258  DL9KM SQ9DXJ -05
183545  +7 1258  ES2AJ SQ9DXJ R+10 (x2)
183645 +10 1259  CQ SQ9DXJ JN99 (x2)
183730  +3 2442  SQ9DXJ UR4LG KN89
183730 -15  821  SQ9DXJ DO1FED JO43
183845  +8 1259  UR4LG SQ9DXJ -02
183900  +1 2442  SQ9DXJ UR4LG R-13
183915  +9 1259  UR4LG SQ9DXJ RR73
183930  -4 2442  SQ9DXJ UR4LG 73

10m

UTC    dB Audio  Message
100700 -14 1217  SQ9DXJ SV2AJX KN10 (x2)
102545 -13 1517  SQ9DXJ DO3VS RR73
062830  +0 1162  SQ9DXJ RN6MA -16
220030 -17 1226  SQ9DXJ F6FHZ JN18 (x3)
074400 -21 2146  SQ9DXJ DK8EE JO41 (x3)

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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