SQ2JDM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO94

Receiver-side FT8 activity involving SQ2JDM, decoded by SO8OO in southeastern Poland. 1,156 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-19.

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 1,156 FT8 messages attributed to SQ2JDM as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (60%), followed by 80 m (36%) and 60 m (3%). Most decodes (55%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was 0 dB.

Overview

1,156

Messages attributed

UTC dates decoded

Active 15-min windows

0 dB

Estimated median S/N

Bands

80m · 411 60m · 33 40m · 698 20m · 14

First attributed message: 2026-06-09
Last attributed message: 2026-09-19 21:12 UTC

Observed FT8 message patterns

Attributed sample: 1,156 messages
Active dates: 15 UTC dates
Estimated median S/N: 0 dB
Estimated 10th-90th percentile: -11 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 184, strong (≥ -8 dB) 956.

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 SQ2JDM in decoded directed-looking exchanges:

DL9KM · Fed. Rep. of Germany ×3 DL1FAM · Fed. Rep. of Germany ×2 IQ4JO · Italy ×2 LZ2INP · Bulgaria ×2 LZ2VQ · Bulgaria ×2 PE1NPS · Netherlands ×2 R1AV · European Russia ×2 RW4HB · European Russia ×2 SP7VCL · Poland ×2 SP9MRP · Poland ×2 UR9QQ · Ukraine ×2 UT4PA · Ukraine ×2

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 SQ2JDM

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: JO94 · 596 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 542 km (approx.)
Last such locator decoded: 2026-09-19 21:07 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	SQ2JDM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 21:12	80m	+9 / -	PE1NPS	-8 / +4	3	✓ Closing observed
09-19 21:10	80m	+4 / 0	SP2WGB	-2 / +6	6	✓ Full exchange observed
09-19 21:08	80m	+8 / -1	YT5DL	+8 / 0	5	✓ Full exchange observed
09-19 21:07	80m	+16 / -	DK8CX	+10 / +6	5	✓ Full exchange observed
09-18 21:07	40m	- / -1	ON1DGN	-4 / -	2	✓ Closing fragment
09-18 21:06	40m	- / -	M0IQW	-7 / -	3	Partial capture
09-18 21:05	40m	- / -	F4BYA	+8 / -	2	Partial capture
09-18 21:04	40m	- / -2	HZ1TT	-12 / -	2	✓ Closing fragment
09-17 17:52	40m	+6 / -	JA5NSR	- / -24	5	Partial capture
09-16 20:35	40m	- / -	4L7T	-4 / -	2	✓ Closing fragment
09-16 20:24	40m	- / -7	SV9QWC	-18 / -	2	✓ Closing fragment
09-16 11:18	40m	+7 / -	SQ9SZ	-12 / -9	4	✓ Closing observed
09-14 23:50	60m	-4 / -	VE3WMI	- / -	2	Partial capture
09-14 23:47	60m	0 / -7	UR9QQ	-8 / -12	5	✓ Full exchange observed
09-14 23:46	60m	-4 / -	K3RTA	- / -13	3	✓ Closing fragment
09-12 21:41	40m	- / -	M0PEI	-15 / -	3	Partial capture
09-12 21:30	80m	+14 / +1	OL900LTV	+4 / -	2	Partial capture
09-12 20:19	40m	- / -14	UR9QQ	-10 / -	2	✓ Closing fragment
09-12 19:43	80m	-3 / -	SP2GR	-3 / -9	3	✓ Closing observed
09-12 19:39	80m	+5 / +9	SN40KZE	+4 / +2	4	Partial capture
09-12 19:11	80m	-8 / -	SM5RYW	- / -3	2	Partial capture
09-12 19:00	80m	+10 / -	SP9EPW	-8 / 0	3	✓ Closing observed
09-12 18:57	80m	0 / -6	OK1DBE	+1 / +1	5	✓ Full exchange observed
09-12 18:57	80m	-5 / -	OZ8XZL	- / -11	3	✓ Closing fragment
09-12 18:56	80m	-7 / +6	SN100PKP	+10 / +5	2	Partial capture
09-12 18:52	80m	- / -2	UB2FDL	-6 / -	2	✓ Closing fragment
09-12 18:51	80m	-2 / -	DO1MGN	- / -15	2	✓ Closing fragment
09-12 18:49	80m	+4 / -7	LZ1EV	+10 / +9	6	✓ Full exchange observed
09-12 18:45	80m	+10 / -	UD3T	- / -17	3	✓ Closing fragment
09-12 18:39	80m	-2 / -1	YU65AEC	-6 / +1	3	Partial capture
09-12 18:30	80m	-6 / -	M6YJG	- / -12	2	✓ Closing fragment
09-12 18:29	80m	- / -10	R2EN	+2 / -	2	Partial capture
09-12 18:25	80m	+4 / +1	HF5A	+4 / +4	5	✓ Full exchange observed
09-12 17:39	80m	0 / -	UN7LAN	- / -	4	Partial capture
09-12 17:34	80m	-1 / -	ZS6BUN	- / -	3	Partial capture
09-12 16:52	60m	+3 / +1	SP2OSA	-7 / +4	5	✓ Full exchange observed
09-12 16:43	40m	-4 / -	BA4IE	- / -	2	Partial capture
09-12 16:39	40m	+8 / -	YC2BUZ	- / -	3	Partial capture
09-11 20:20	80m	+14 / -12	R3VE	-2 / -5	5	✓ Full exchange observed
09-11 20:19	80m	+14 / -1	SP4WJ	+4 / +2	4	✓ Full exchange observed
09-11 20:17	80m	+10 / -	SP9AU	+17 / -	5	✓ Full exchange observed
09-11 20:15	80m	- / -	IZ4CCL	-8 / -	2	Partial capture
09-11 20:11	80m	+9 / -7	DG1ROL	-2 / -13	6	✓ Full exchange observed
09-11 20:06	80m	+12 / -	DM1EE	-6 / +3	4	✓ Closing observed
09-11 20:06	80m	+13 / -12	UA4FET	-5 / -1	6	✓ Full exchange observed
09-11 19:59	80m	+12 / -	DL1JEL	-5 / -10	12	Partial capture
09-11 19:57	80m	+13 / -16	RV3SBS	-17 / -14	5	✓ Full exchange observed
09-11 19:55	80m	+9 / +1	SP7SZJ	+14 / -	4	✓ Full exchange observed
09-11 19:54	80m	+8 / -	LY3QR	- / -10	2	✓ Closing fragment
09-11 19:52	80m	+11 / -4	SQ9DKS	+8 / +8	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
210845 +10 1165  YT5DL SQ2JDM +00 (x2)
211000  +8 1164  SQ2JDM YT5DL R-01
211000  +0 1759  SQ2JDM SP2WGB JO94
211015  +1 1165  YT5DL SQ2JDM RR73
211030  +7 1164  SQ2JDM YT5DL 73
211030  -1 1759  SQ2JDM SP2WGB JO94
211045  -5 1165  SP2WGB SQ2JDM +06
211100  -2 1759  SQ2JDM SP2WGB R+00
211115 +13 1165  SP2WGB SQ2JDM RR73
211130  -4 1759  SQ2JDM SP2WGB 73
211145 +14 1165  RY3F SQ2JDM R-01
211215 +13 1165  PE1NPS SQ2JDM +04 (x2)
211300  -8  474  SQ2JDM PE1NPS 73

60m

UTC    dB Audio  Message
165330  +3 1535  SP2OSA SQ2JDM 73
234630  -3 1552  K3RTA SQ2JDM JO94 (x3)
234745  -5 1835  SQ2JDM UR9QQ KN77
234745  +4 2480  SQ2JDM LZ2VQ KN23
234800  +2 1995  VE3WMI SQ2JDM JO94
234815  -5 1835  SQ2JDM UR9QQ KN77
234830  +0 1995  UR9QQ SQ2JDM -12
234845  -9 1835  SQ2JDM UR9QQ R-07 (x2)
235030  -6 1994  VE3WMI SQ2JDM JO94 (x2)
235200  -3 1994  SQ8NA SQ2JDM R+00
210015  +1 1196  II8IHBC SQ2JDM +00

40m

UTC    dB Audio  Message
175315  +3  419  JA5NSR SQ2JDM -24 (x3)
091900 -11 1432  SQ2JDM 3Z100PKP R-09
091945 -15 1432  CQ SQ2JDM JO94                        a1
210400 -11 1728  SQ2JDM HZ1TT R-02 (x2)
210530  +5 2932  SQ2JDM F4BYA JN19 (x2)
210630 -23 1631  SQ2JDM UN7PPV -12
210630 -10 1728  SQ2JDM M0IQW IO91
210700  -6 1337  SQ2JDM ON1DGN -01
210700  -4 1728  SQ2JDM M0IQW IO91
210730  -2 1337  SQ2JDM ON1DGN RR73
210730  -8 1728  SQ2JDM M0IQW IO91

20m

UTC    dB Audio  Message
115415 -13 2294  SQ2JDM RV3YN KO73
121030 -20 1832  SQ2JDM M0CKX -13 (x14)

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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