SP3CFM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO83

Receiver-side FT8 activity involving SP3CFM, decoded by SO8OO in southeastern Poland. 126 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-08-25 and 2026-09-18.

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 126 FT8 messages attributed to SP3CFM as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (79%), followed by 40 m (10%) and 160 m (7%). Several six-hour UTC windows tied for the largest share (90%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was +8 dB.

Overview

126

Messages attributed

UTC dates decoded

Active 15-min windows

+8 dB

Estimated median S/N

Bands

160m · 9 80m · 100 40m · 13 20m · 4

First attributed message: 2026-08-25
Last attributed message: 2026-09-18 16:45 UTC

Observed FT8 message patterns

Attributed sample: 126 messages
Active dates: 9 UTC dates
Estimated median S/N: +8 dB
Estimated 10th-90th percentile: -8 to +17 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 115.

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 SP3CFM in decoded directed-looking exchanges:

OK1DXR · Czech Republic RI1FJL · Franz Josef Land 7K1CPT · Japan WA2HIP · United States P29YY · Papua New Guinea ZS6BUN · South Africa

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 SP3CFM

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: JO83 · 105 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 515 km (approx.)
Last such locator decoded: 2026-09-18 16:45 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	SP3CFM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-14 17:26	80m	+4 / -	ZS6BUN	- / -7	11	✓ Closing fragment
09-14 16:57	80m	+7 / -	ZS6BUN	- / -	5	Partial capture
09-14 16:23	80m	+9 / -	KH8WW	- / -20	10	Partial capture
09-14 16:16	80m	+9 / -	KH8WW	- / -	2	Partial capture
09-05 05:25	40m	-8 / -	D44TWO	- / -	3	Partial capture
09-05 05:23	40m	-10 / -	HB0/DL5RMH	- / -	2	Partial capture
09-05 05:19	40m	-6 / -	W3EWL/QRP	- / -	2	Partial capture
09-05 05:12	40m	-7 / -	WA2HIP	- / -9	3	✓ Closing fragment
09-03 19:45	160m	-6 / -	OK1DXR	+4 / +2	7	✓ Full exchange observed
09-03 19:42	160m	-6 / -	RI1FJL	- / -12	7	✓ Closing fragment
08-31 18:42	80m	-2 / -	RI1FJL	- / -21	15	Partial capture
08-31 18:33	80m	+12 / -	RI1FJL	- / -	2	Partial capture
08-30 15:29	20m	- / -	IW5ABF	-14 / -	2	Partial capture
08-29 17:28	80m	+12 / -	P29YY	- / -19	15	✓ Closing fragment
08-29 17:27	80m	- / -7	DK2CC	0 / -	2	Partial capture
08-29 17:08	80m	+13 / -	P29YY	- / -	35	Partial capture
08-29 17:03	80m	+15 / -	P29YY	- / -	3	Partial capture
08-25 18:41	20m	-6 / -3	7K1CPT	-5 / -	2	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
165915 +10 2885  ZS6BUN SP3CFM JO83 (x13)
164500 +21 2275  CQ SP3CFM JO83 (x2)

40m

UTC    dB Audio  Message
060400  -1 2576  W7ZR SP3CFM JO83
060600 +12 2700  W7PIA SP3CFM JO83
051215  -6 2902  WA2HIP SP3CFM JO83 (x3)
051915  -5 2902  W3EWL/QRP SP3CFM JO83 (x2)
052215  -6 2902  D44TWO SP3CFM JO83
052345  -9 2913  HB0/DL5RMH SP3CFM JO83 (x2)
052545  -9 2913  D44TWO SP3CFM JO83 (x3)

160m

UTC    dB Audio  Message
194215  -1 1234  RI1FJL SP3CFM -12 (x7)
194530  +4 1295  SP3CFM OK1DXR JO60 (x3)
194645  -7 1234  OK1DXR SP3CFM +02
194700  +4 1295  SP3CFM OK1DXR R+17
194715  -6 1234  OK1DXR SP3CFM RR73
194730  +4 1295  SP3CFM OK1DXR 73

20m

UTC    dB Audio  Message
184130  -5 2783  SP3CFM 7K1CPT -03
184215  -6 2689  7K1CPT SP3CFM 73
184230 -18 2519  SP3CFM SP6AXW JO80
184230  +3 2689  SP3CFM F5PBG IN78
184545  -7 2689  JR0SXU SP3CFM -10
184815  -8 2689  BA3QIQ SP3CFM -15
144800  -6 2236  SP3CFM IK2RZQ JN45
152900 -16 1745  SP3CFM IW5ABF JN53 (x2)
161915 -13 2750  KY0R SP3CFM -19

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee