SP3PM — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving SP3PM, decoded by SO8OO in southeastern Poland. 121 FT8 messages attributed to this token as transmitter, on 80m, across 16 UTC dates in the available aggregate history. Observed between 2026-07-11 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 121 FT8 messages attributed to SP3PM as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Several six-hour UTC windows tied for the largest share (92%), 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

121

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 121

First attributed message: 2026-07-11
Last attributed message: 2026-09-19 04:59 UTC

Observed FT8 message patterns

Attributed sample: 121 messages
Active dates: 16 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -24 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 65, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 19.

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 SP3PM in decoded directed-looking exchanges:

SP3HGD · Poland ×3 IQ4JO · Italy ×2 SP4DLD · Poland ×2 4O5JD · Montenegro LZ2RR · Bulgaria LZ4VR · Bulgaria UT5ED · Ukraine 9A6NCC · Croatia HA3TBL · Hungary HF0S · Poland LY2J · Lithuania SP3AXL · Poland

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 SP3PM

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 · 76 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 552 km (approx.)
Last such locator decoded: 2026-09-19 04:58 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	SP3PM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 04:58	80m	-12 / -16	SO100PKP	+8 / -12	3	Partial capture
09-12 02:50	80m	-18 / -22	SQ5FM	+2 / -	4	✓ Closing observed
09-06 15:39	80m	-15 / -	SP7UB	+13 / -	3	✓ Closing observed
09-06 04:58	80m	-23 / -	HF0ROSA	- / -	5	Partial capture
09-06 04:33	80m	-20 / -	3Z100LKK	- / -	2	Partial capture
09-06 04:10	80m	-13 / -	HF0ROSA	- / -	2	Partial capture
09-06 03:39	80m	-22 / -	SP3HGD	- / -13	2	✓ Closing fragment
09-06 03:22	80m	- / -4	HF100PKP	+20 / -	2	Partial capture
09-06 02:51	80m	-16 / -13	SP9GCZ	+14 / +3	4	✓ Full exchange observed
09-05 16:02	80m	-14 / -	SP9GCZ/QRP	- / -	2	Partial capture
09-05 15:29	80m	- / -15	OZ7KJ/P	-8 / -	2	✓ Closing fragment
09-05 14:54	80m	- / -20	SP2ALT	-9 / -	2	Partial capture
09-05 03:46	80m	-24 / -13	DL8TV	+2 / -	8	✓ Closing observed
09-05 03:46	80m	-15 / -4	DO1ID	+9 / -1	4	✓ Full exchange observed
09-05 03:46	80m	- / -20	SP3HGD	-5 / -	5	✓ Closing fragment
09-05 03:14	80m	- / -19	SP9WLC	+14 / -	2	✓ Closing fragment
09-05 02:44	80m	-12 / -19	IQ4JO	-3 / -5	5	✓ Full exchange observed
08-30 04:38	80m	- / -16	OK1UOZ	+8 / -	2	✓ Closing fragment
08-30 03:39	80m	- / -21	SQ4PKO	0 / -	4	✓ Closing fragment
08-23 04:10	80m	-15 / -12	DO9REF	+2 / -1	6	✓ Full exchange observed
08-23 04:06	80m	0 / -19	DL7ARV	-5 / -12	7	✓ Full exchange observed
08-23 04:03	80m	-8 / -3	SQ3JVA	-6 / -8	5	✓ Full exchange observed
08-23 03:58	80m	-6 / -	DO3VE	-3 / -2	3	✓ Closing observed
08-23 03:20	80m	-6 / -10	TF3VS	+4 / -7	5	✓ Full exchange observed
08-16 09:18	10m	- / -2	UT5ED	-11 / -	2	✓ Closing fragment
08-16 03:10	80m	- / -	DO5PY	+5 / -	2	Partial capture
08-16 03:09	80m	- / -14	F1PBZ	+8 / -	3	Partial capture
08-16 03:09	80m	-10 / -18	SP1ZMO	+7 / -10	7	✓ Full exchange observed
08-15 03:33	80m	-23 / -	SP5LUNA	- / -	2	Partial capture
08-15 03:31	80m	-18 / -11	SP9UPH	+6 / -4	4	✓ Full exchange observed
08-15 03:24	80m	-22 / -7	DK5CH	+2 / -11	4	✓ Full exchange observed
08-15 02:54	80m	-24 / -10	SP4DLD	+2 / -2	6	✓ Full exchange observed
08-15 02:54	80m	-24 / -	M0GLV	- / -10	2	✓ Closing fragment
08-15 02:39	80m	-19 / -	YO1BRANCUSI	- / -	2	Partial capture
08-15 02:20	80m	-11 / -	DO5PY	+1 / -5	4	Partial capture
08-15 02:20	80m	-15 / -8	SP3HGD	-3 / -2	5	✓ Full exchange observed
08-15 02:19	80m	- / -	HB9MZI	-24 / -	2	Partial capture
07-30 06:48	40m	- / -12	SP9MRP	-12 / -	2	✓ Closing fragment
07-29 15:37	40m	- / -	9A6NCC	-18 / -	2	✓ Closing fragment
07-27 08:52	40m	- / -	DM5KK	-15 / -	2	Partial capture
07-27 03:58	40m	- / -	R2AL	0 / -	4	Partial capture
07-23 05:54	10m	- / -6	LZ2RR	+1 / -	2	✓ Closing fragment
07-23 05:39	40m	- / -7	HA3TBL	-14 / -	4	✓ Closing fragment
07-22 14:45	40m	- / -15	HF0S	-16 / -	2	✓ Closing fragment
07-20 04:38	40m	- / -15	LY2J	-18 / -	2	✓ Closing fragment
07-20 03:13	80m	-12 / -	S55X	- / -	2	Partial capture
07-19 15:52	40m	- / -17	SP3AXL	+2 / -	2	✓ Closing fragment
07-19 13:50	40m	- / -7	SP5ROM	-14 / -	2	✓ Closing fragment
07-19 03:29	80m	-18 / -8	5P1KZX	-24 / -17	4	✓ Full exchange observed
07-19 03:02	80m	-14 / -	TN8GD	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
045930 -21 2031  <HF0ROSA> SP3PM JO72 (x3)
145515 -21 1677  CQ SP3PM JO72
153900 -15 1108  SP7UB SP3PM JO72 (x2)
154015 +13 1109  SP3PM SP7UB RR73
163545 -18 1821  SP100PKP SP3PM R+02
025030 -22 1002  SQ5FM SP3PM JO72
025045  +3 1002  SP3PM SQ5FM -22 (x2)
025130 -14 1002  SQ5FM SP3PM 73
045845 -15 1436  <SO100PKP> SP3PM JO72
045900  +8 1435  SP3PM SO100PKP -16
045915 -10 1436  SO100PKP SP3PM R-12

10m

UTC    dB Audio  Message
085300 -18 1259  SP3PM LZ4VR R-04 (x2)
055415  +0 2341  SP3PM LZ2RR -06 (x2)
105300 -24 1563  SP3PM UA4FEN -13
091800  -4 1790  SP3PM UR5VPR KN68
091830  -9 1790  SP3PM UT5ED R-02 (x2)
155700 -24 1590  SP3PM 4O5JD RR73

40m

UTC    dB Audio  Message
053945 -19 2094  SP3PM HA3TBL JN86 (x4)
024130  -6  875  SP3PM R5AV -20
035800  +1  958  SP3PM R2AL KO85 (x4)
085230 -18 1109  SP3PM DM5KK JO60 (x2)
153700 -20 1837  SP3PM 9A6NCC RR73 (x2)
064845 -11 1763  SP3PM SP9MRP -12 (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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