SQ3PMX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO72

Receiver-side FT8 activity involving SQ3PMX, decoded by SO8OO in southeastern Poland. 1,739 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 67 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-06.

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 1,739 FT8 messages attributed to SQ3PMX as the transmitting token by decoded message structure across 67 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (70%), followed by 20 m (15%) and 80 m (14%). The busiest six-hour window was 14:00-20:00 UTC, containing 47% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.5 dB.

Overview

1,739

Messages attributed

UTC dates decoded

295

Active 15-min windows

-9.5 dB

Estimated median S/N

Bands

80m · 241 60m · 7 40m · 1,224 20m · 260 10m · 7

First attributed message: 2026-06-07
Last attributed message: 2026-10-06 04:37 UTC

Observed FT8 message patterns

Attributed sample: 1,739 messages
Active dates: 67 UTC dates
Estimated median S/N: -9.5 dB
Estimated 10th-90th percentile: -20 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 447, moderate (-15 to -9 dB) 500, strong (≥ -8 dB) 792.

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 SQ3PMX in decoded directed-looking exchanges:

M0IEP · England ×4 F1IQH · France ×2 F1PBZ · France ×2 HB9EFK · Switzerland ×2 R7OV · European Russia ×2 SQ9LFQ · Poland ×2 E70SZ · Bosnia-Herzegovina ×2 F8FUA · France ×2 M6ILA · England ×2 ON6CQ · Belgium ×2 SQ3JVA · Poland ×2 UX2SB · Ukraine

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 SQ3PMX

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: JO72 · 1,142 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 552 km (approx.)
Last such locator decoded: 2026-10-06 04:36 UTC

Other locator fields attributed to this token: JO74 (9).

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	SQ3PMX S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-06 04:35	40m	-18 / -	IN3WZS	- / -21	4	✓ Closing fragment
10-06 04:33	40m	-16 / -	M0DRN	- / -21	2	Partial capture
10-06 04:32	40m	-20 / -	IS0AWZ	- / -	2	Partial capture
10-06 04:02	40m	- / -19	OH6RE	-8 / -	2	✓ Closing fragment
10-06 03:58	40m	- / -6	RZ6ALZ	-11 / -	2	✓ Closing fragment
10-06 03:52	40m	- / -15	PF7DKW	-7 / -	2	✓ Closing fragment
10-06 02:28	40m	- / -19	TI2YO	-13 / -	3	Partial capture
10-06 02:22	40m	- / +9	EA5FD	-3 / -	4	✓ Closing fragment
10-06 01:57	80m	-22 / -23	SM2LKW	-14 / -8	4	Partial capture
10-06 01:55	80m	- / -17	ON3ANY	+9 / -	2	✓ Closing fragment
10-05 08:22	40m	-15 / -	R4HMI	- / -18	3	✓ Closing fragment
10-05 06:23	40m	-20 / -	OH8GBO	-24 / -5	2	✓ Closing observed
10-05 06:00	40m	- / -1	S57BTI	-4 / -	2	✓ Closing fragment
10-05 05:55	40m	- / -22	3Z4DX	+18 / -	2	✓ Closing fragment
10-04 18:06	40m	-12 / -	9K2MP	- / -	2	Partial capture
10-04 18:03	40m	-8 / +1	ON5EA	-10 / -18	5	✓ Full exchange observed
10-04 17:49	40m	- / +9	DL2MHM	-15 / -	2	Partial capture
10-04 17:43	40m	-7 / -	G3VCQ	- / -14	2	Partial capture
10-04 17:40	40m	- / -7	UR3VBM	-10 / -	4	✓ Closing fragment
10-04 17:36	40m	-9 / -	SM5JVF	- / -16	2	Partial capture
10-04 17:32	40m	-6 / -	M6ILA	- / -14	3	✓ Closing fragment
10-04 17:22	40m	-10 / +7	EI2KM	+6 / 0	11	✓ Full exchange observed
10-02 19:46	80m	- / -11	OK1SI	+8 / -	2	✓ Closing fragment
10-02 18:07	40m	-8 / -12	UT8IIV/P	-14 / -	2	Partial capture
10-02 17:08	40m	-8 / -	UB3ADO/P	- / -	3	Partial capture
10-02 17:03	40m	- / -6	TM4GGR	-6 / -	2	✓ Closing fragment
10-02 17:01	40m	-3 / -	OH2CTS	-5 / -15	2	✓ Closing observed
10-02 16:58	40m	-11 / -	5Q1X	- / -9	2	Partial capture
10-02 15:42	40m	-7 / 0	M0IEP	-22 / -	3	✓ Closing observed
10-02 15:39	40m	-10 / -	II4NTTI	- / -13	3	Partial capture
10-02 15:37	40m	-7 / -	RO2E/M	- / -	3	Partial capture
10-02 15:34	40m	-5 / -	GS8VL	- / -10	4	✓ Closing fragment
10-01 18:09	40m	-15 / -	BG7BVP	- / -15	3	✓ Closing fragment
10-01 17:40	40m	-24 / -	BG7BVP	- / -	2	Partial capture
10-01 17:32	40m	-10 / -	R4HOH	- / -17	4	✓ Closing fragment
10-01 17:29	40m	-6 / -	RD0L	- / -15	3	✓ Closing fragment
10-01 17:27	40m	+1 / -1	DD3ZZ	0 / -18	6	✓ Full exchange observed
10-01 17:19	40m	+1 / -	DD3ZZ	- / -	8	Partial capture
10-01 17:17	40m	+1 / -	EH5FVP	-3 / -9	4	✓ Closing observed
10-01 17:16	40m	0 / -	2E0TSS	- / -	2	Partial capture
10-01 16:58	40m	-2 / -	SM0TPH	- / -	2	✓ Closing fragment
10-01 16:54	40m	-3 / -	BG7BVP	- / -	7	Partial capture
10-01 16:00	40m	-13 / -9	SQ8CTR	-4 / +2	6	✓ Full exchange observed
10-01 16:00	40m	-12 / +6	SP1MGM	0 / +2	5	✓ Full exchange observed
10-01 15:58	40m	-14 / -9	R7OV	-14 / -	5	✓ Closing observed
10-01 15:54	40m	-9 / -	DL1NRC	-12 / -	4	✓ Closing observed
10-01 15:51	40m	-6 / -	BX1AAS	- / -	2	Partial capture
10-01 09:24	40m	-24 / -	OH2CUB/P	- / -	2	Partial capture
09-30 10:53	40m	-14 / +2	SO100PKP	-12 / -	2	Partial capture
09-30 10:32	40m	-5 / -	DF9HT/P	- / -10	6	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
035230  -5 1170  SQ3PMX PF7DKW -15 (x2)
035845 -13 2307  SQ3PMX RZ6ALZ -06 (x2)
040215  -9 1952  SQ3PMX OH6RE -19 (x2)
043200 -20 1340  M9UTD SQ3PMX 73
043230 -18 1340  IS0AWZ SQ3PMX JO72 (x2)
043345 -19 1340  M0DRN SQ3PMX JO72 (x2)
043545 -18 1341  IN3WZS SQ3PMX JO72 (x4)

80m

UTC    dB Audio  Message
191545  -2  868  HF100PKP SQ3PMX JO74
191730 -17  868  SQ3PMX SP9SOS KN09
191845  +2  868  SP9SOS SQ3PMX -16
023545  +1  848  R8AIM/4 SQ3PMX +02 (x2)
023630  +7 2299  SQ3PMX DO5UH/P R+11
194615  +9  256  SQ3PMX OK1SI -11 (x2)
002745 -24 1796  <DA125RH> SQ3PMX JO72
015545  +8  412  SQ3PMX ON3ANY -17 (x2)
015745 -15 2294  SQ3PMX SM2LKW -23 (x3)
015900 -22 2293  SM2LKW SQ3PMX R-08

20m

UTC    dB Audio  Message
201600  -2 2542  SQ3PMX D2IM RR73
040200 -16 1264  SQ3PMX R0ACR -10 (x2)
064945  +2 1710  SQ3PMX <...> -16 (x11)
161415  -9 1348  SQ3PMX CT1END/P RR73

60m

UTC    dB Audio  Message
200045  -2 2431  OJ0YL SQ3PMX JO72 (x6)
200330 -17 1807  SQ3PMX RR73; PA3ANG <...> -14
200345  -2 2430  OJ0YL SQ3PMX 73
200500  +0 1330  SQ3PMX SN1A JO73 (x4)

10m

UTC    dB Audio  Message
143115  -5 1480  UX2SB SQ3PMX JO72 (x3)
094200 -16 2178  SQ3PMX IK4JPP -06

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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