PA5MB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Netherlands Most frequent locator attributed to this token: JO21

Receiver-side FT8 activity involving PA5MB, decoded by SO8OO in southeastern Poland. 469 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-20.

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 469 FT8 messages attributed to PA5MB as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (53%), followed by 80 m (25%) and 20 m (22%). Several six-hour UTC windows tied for the largest share (50%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

469

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 116 40m · 249 20m · 104

First attributed message: 2026-06-06
Last attributed message: 2026-09-20 05:48 UTC

Observed FT8 message patterns

Attributed sample: 469 messages
Active dates: 27 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -19 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 112, moderate (-15 to -9 dB) 200, strong (≥ -8 dB) 157.

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 PA5MB in decoded directed-looking exchanges:

9A3TGY · Croatia ×2 DK5UR · Fed. Rep. of Germany ×2 DL9KM · Fed. Rep. of Germany ×2 IU4SQE · Italy ×2 ON1DGN · Belgium ×2 IQ4JO · Italy ×2 7K1CPT · Japan CT1END/P · Portugal MI6YHI · Northern Ireland SQ5DTL · Poland 3Z0L · Poland 4O7CC · Montenegro

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 PA5MB

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: JO21 · 339 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,192 km (approx.)
Last such locator decoded: 2026-09-20 05:48 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	PA5MB S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 05:47	40m	-7 / -	XE1PM	- / -	3	Partial capture
09-20 05:45	40m	-10 / +4	GJ0KYZ	-13 / +4	3	✓ Full exchange observed
09-20 05:43	40m	-9 / -	ZL1VAH	- / -	3	✓ Closing fragment
09-20 05:30	80m	-17 / -	EA4EER	- / -	12	Partial capture
09-20 05:02	80m	- / -7	GM6URC	-16 / -	4	Partial capture
09-20 04:56	80m	-14 / -	KP4PW	- / -	6	Partial capture
09-20 04:50	80m	-11 / -	DF8IJ	-7 / -	2	✓ Closing observed
09-20 04:49	80m	-9 / -	K9BAW	- / -13	8	✓ Closing fragment
09-19 19:58	80m	-15 / -	IK4IDY	- / -	3	Partial capture
09-19 19:53	80m	-16 / -	DO1BJF	- / -12	2	Partial capture
09-19 19:50	80m	-11 / -	YO3TEP	- / -	4	Partial capture
09-19 19:48	80m	- / -16	9A9N	0 / -	2	✓ Closing fragment
09-18 19:46	80m	- / +5	DO1ID	+8 / -	2	✓ Closing fragment
09-18 19:39	80m	-9 / -	DJ8TX	- / -3	3	✓ Closing fragment
09-18 19:26	40m	-13 / -5	DF9HT/P	-5 / -5	5	✓ Full exchange observed
09-14 14:10	40m	-22 / -15	SN31ROT	-1 / -11	3	Partial capture
09-14 13:48	40m	-5 / +9	DL8RO	-2 / -7	8	✓ Full exchange observed
09-14 13:44	40m	-4 / -	PA1HEM	- / -5	2	✓ Closing fragment
09-14 13:39	40m	-4 / -	ON1DGN	-24 / 0	3	✓ Closing observed
09-13 05:04	40m	-14 / -17	9A60CBM	+3 / -5	8	Partial capture
09-13 05:00	40m	-10 / -	LZ936BA	- / -	5	Partial capture
09-13 04:57	40m	-11 / -	EA6BH	- / -5	3	✓ Closing fragment
09-13 04:48	40m	-5 / -	EA5DKA	- / -	2	Partial capture
09-13 04:44	40m	- / -3	II9IAGM	-17 / -	2	Partial capture
09-12 20:20	80m	-16 / -	UB3ADO/P	- / -	2	Partial capture
09-12 20:19	80m	-17 / -	OM2WW	- / -	2	Partial capture
09-12 18:06	80m	- / -16	3Z100PKP	+14 / -	2	Partial capture
09-12 15:11	40m	-19 / -	G4MJS	- / -1	3	✓ Closing fragment
09-12 15:09	40m	- / -	GB1HTC	-9 / -	2	✓ Closing fragment
09-12 06:22	40m	-13 / -5	F1PBZ	-12 / +3	8	✓ Full exchange observed
09-12 06:16	40m	-16 / -	WB8YJF/NA67	- / -	2	Partial capture
09-12 06:15	40m	-14 / -	R8HC/P	- / -	9	Partial capture
09-12 04:59	40m	-17 / -	J38LD	- / -	11	Partial capture
09-12 04:54	40m	-12 / -	J38LD	- / -	2	Partial capture
09-12 04:45	40m	-9 / -	J38DX	- / -	11	Partial capture
09-10 19:24	80m	-14 / -	HB3YQQ	- / -	8	Partial capture
09-09 06:43	40m	-12 / -	VK2JJM	- / -16	4	Partial capture
09-09 06:27	40m	-15 / -	DK1TBL	-14 / -	2	✓ Closing observed
09-09 06:23	40m	-17 / -19	DK1TBL	-12 / -	4	Partial capture
09-09 06:20	40m	- / -12	OE1NAC	-1 / -	2	✓ Closing fragment
09-09 06:17	40m	-13 / -	DK1TBL	- / -	2	Partial capture
09-09 06:14	40m	- / -12	DK5UR	-1 / -	2	✓ Closing fragment
09-06 06:15	40m	-10 / -	F1LPT/P	- / -	2	Partial capture
09-06 06:07	40m	-11 / -	SP5KOR	- / -	16	Partial capture
09-06 05:41	40m	-14 / -13	4O7CC	-6 / -14	6	✓ Full exchange observed
09-06 05:15	40m	-13 / -	J38LD	- / -	12	Partial capture
09-06 04:54	40m	-11 / -	TA1CQ	- / -16	12	✓ Closing fragment
09-06 04:51	40m	-14 / -	IU4SQE	- / -8	4	✓ Closing fragment
09-05 20:45	40m	- / +8	LA1FDG	-8 / -	2	✓ Closing fragment
09-05 19:17	80m	-15 / -	DL7EDU	-1 / -14	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
192630 -11 1619  DF9HT/P PA5MB JO21
192645  -5  629  PA5MB DF9HT/P -05
192700 -19 1619  DF9HT/P PA5MB R-05
192715  -5  629  PA5MB DF9HT/P RRR
192730  -9 1619  DF9HT/P PA5MB 73
192900  -8 1619  G0WTZ PA5MB JO21
054315 -10 1806  ZL1VAH PA5MB JO21 (x3)
054530 -13 1807  PA5MB GJ0KYZ +04
054545  -9 1806  GJ0KYZ PA5MB R+04 (x2)
054715  -7 1806  XE1PM PA5MB JO21 (x3)

80m

UTC    dB Audio  Message
050245 -14 1778  PA5MB GM6URC -07 (x3)
053000 -18 1066  EA4EER PA5MB JO21 (x12)

20m

UTC    dB Audio  Message
181245  -3  706  EP2AES PA5MB JO21 (x4)
183400  -5  706  LB8X PA5MB JO21
183900  -2  707  BI4JJO PA5MB -16 (x4)
184530  -7  706  OY5T PA5MB JO21 (x6)

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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