OK2SFP — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Czech Republic Most frequent locator attributed to this token: JN99

Receiver-side FT8 activity involving OK2SFP, decoded by SO8OO in southeastern Poland. 633 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 18 UTC dates in the available aggregate history. Observed between 2026-08-21 and 2026-10-19.

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 633 FT8 messages attributed to OK2SFP as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (95%), followed by 40 m (3%) and 20 m (2%). Several six-hour UTC windows tied for the largest share (53%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (98%); the estimated median was +17 dB.

Overview

633

Messages attributed

UTC dates decoded

Active 15-min windows

+17 dB

Estimated median S/N

Bands

80m · 600 40m · 20 20m · 13

First attributed message: 2026-08-21
Last attributed message: 2026-10-19 04:51 UTC

Observed FT8 message patterns

Attributed sample: 633 messages
Active dates: 18 UTC dates
Estimated median S/N: +17 dB
Estimated 10th-90th percentile: +4.6 to +25 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 623.

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 OK2SFP in decoded directed-looking exchanges:

VO1HP · Canada ×2 BG7BVI · China PD3LKN · Netherlands XU7O · Cambodia ZS6MGM · South Africa 3B8FA · Mauritius 4O7CC · Montenegro EW8DU · Belarus IK4TVP · Italy JY5IB · Jordan 9A3AUH · Croatia 9K2GR · Kuwait

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 OK2SFP

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: JN99 · 412 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 206 km (approx.)
Last such locator decoded: 2026-10-19 04:51 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	OK2SFP S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 05:08	40m	- / -	EA3IZF	-12 / -	2	Partial capture
10-19 04:49	80m	+27 / -	OE/DL1JAT	- / -	6	Partial capture
10-19 04:37	80m	+29 / -	P4/WE9V	- / -6	2	Partial capture
10-12 18:57	80m	+14 / -	JG3TRB	-10 / -10	5	✓ Closing observed
10-12 18:53	80m	+12 / +6	OH8D	-5 / -1	7	✓ Full exchange observed
10-12 18:45	80m	+17 / -	9H6C	- / -20	11	Partial capture
10-11 17:16	40m	-7 / -	JL1CNY	- / -	2	Partial capture
10-10 18:15	80m	+5 / -	EX8BT	- / -11	9	✓ Closing fragment
10-08 21:17	80m	+20 / -	JE6HGL	- / -	8	Partial capture
10-08 21:10	80m	+20 / -12	JA4LKB	-10 / -14	6	✓ Full exchange observed
10-08 21:00	80m	+14 / -	JA4LKB	- / -	4	Partial capture
10-08 20:32	80m	+12 / -	JN4MIV	- / -	7	Partial capture
10-08 20:24	80m	+17 / -	JR1AIB	- / -14	5	✓ Closing fragment
10-08 20:18	80m	+16 / -15	JH4ADV	-18 / -11	6	✓ Full exchange observed
10-08 20:13	80m	- / -	JA6MWW	-18 / -	3	Partial capture
10-08 20:12	80m	+15 / -19	JH4IFF	-14 / -18	6	✓ Full exchange observed
10-08 20:07	80m	+16 / -15	JA6VQA	-14 / -	12	Partial capture
10-08 20:03	80m	+19 / -	JE6WOQ	- / -16	3	✓ Closing fragment
10-08 19:58	80m	+18 / -21	RA0SCA	-12 / -14	7	✓ Full exchange observed
10-08 19:44	80m	+16 / -	D2UY	- / -	6	Partial capture
10-08 19:20	80m	+16 / -	D2UY	- / -	20	Partial capture
10-08 19:01	80m	- / -	DB100FT	-4 / -	2	Partial capture
10-08 19:01	80m	- / -	OM3PR	+5 / -	5	Partial capture
10-08 18:57	80m	+17 / -	9K2GR	- / -8	6	✓ Closing fragment
10-08 18:44	80m	+17 / -	A71JJ	- / -	13	Partial capture
10-08 04:06	40m	- / -	R6XW	-23 / -	2	Partial capture
10-08 03:50	40m	- / -	EA3HMM	+10 / -	4	Partial capture
10-06 02:44	80m	+1 / -	HI8L	- / -	6	Partial capture
10-06 02:39	80m	+1 / -	HI8L	- / -	5	Partial capture
10-06 02:23	80m	+2 / -3	C5R	-14 / -16	14	Partial capture
10-05 20:10	80m	+14 / -	VK3EW	- / -10	9	Partial capture
10-05 20:06	80m	+13 / -	VK3EW	- / -	3	Partial capture
10-05 20:05	80m	+14 / -8	RA9SBN	-19 / -6	7	✓ Full exchange observed
10-05 19:55	80m	+17 / -	JA9BFN	- / -9	3	Partial capture
10-05 19:51	80m	+12 / -	VK3HJ	- / -	6	Partial capture
10-05 19:48	80m	+13 / -	JR4PWV	- / -19	3	✓ Closing fragment
10-05 19:43	80m	+12 / -	VK3AMP	- / -17	9	✓ Closing fragment
10-05 19:40	80m	+14 / -	SP5DFK/QRP	- / -10	2	Partial capture
10-05 19:38	80m	+18 / -4	SV5/TF1OL	-20 / -	3	Partial capture
10-05 04:05	80m	+16 / -	RO2E/M	- / -9	3	Partial capture
10-02 18:10	80m	+17 / -	AP2HA	- / -21	10	Partial capture
10-01 04:45	80m	+24 / -	K4MV	- / -22	4	Partial capture
10-01 04:39	80m	+30 / -	KS4YT	-13 / -10	7	✓ Closing observed
10-01 04:27	80m	+23 / -	K0BZ	- / -24	3	✓ Closing fragment
10-01 04:24	80m	+12 / -	NF3R	- / -16	4	✓ Closing fragment
10-01 04:19	80m	+27 / -	TF4M	-6 / -4	7	✓ Closing observed
10-01 04:15	80m	+24 / -	N1IWP	- / -	5	Partial capture
09-30 16:37	80m	+20 / -	VR2ZXP	- / -	4	Partial capture
09-30 16:31	80m	+23 / -	VR2ZXP	- / -	6	Partial capture
09-23 18:42	80m	+30 / -	V51WH	- / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
040400 -14 1721  OK2SFP IK4TVP +33 (x2)
035015 +10  358  OK2SFP EA3HMM JN00 (x4)
040515 -19 1302  OK2SFP JY5IB RR73
040615 -22 2126  OK2SFP R6XW LN13 (x2)
200000 -15  997  3B8FA OK2SFP 73
200945 -13 1002  HS7WMU OK2SFP R-11
171615  -8  706  JL1CNY OK2SFP JN99 (x2)
050800 -15 1540  OK2SFP EA3IZF JN01 (x2)

80m

UTC    dB Audio  Message
185530 +13  946  OH8D OK2SFP 73
185545  -2 2431  OK2SFP OH8D 73
185700 +14  949  JG3TRB OK2SFP JN99 (x3)
185815 -10 2467  OK2SFP JG3TRB RR73
185830 +13  950  JG3TRB OK2SFP 73
043715 +29  948  P4/WE9V OK2SFP JN99 (x2)
044900 +29  874  OE/DL1JAT OK2SFP JN99 (x6)

20m

UTC    dB Audio  Message
053515  -1  255  OK2SFP PD3LKN R+04 (x2)
173545  +9  644  OK2SFP M0LAD JO02
174430 -16  674  OK2SFP ZS6MGM -11 (x2)
074545  +1  763  RI1FJL OK2SFP JN99 (x7)
094230  -5 1521  OK2SFP CT7AUT IM67 (x3)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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