SP3FHV — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving SP3FHV, decoded by SO8OO in southeastern Poland. 730 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 20 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-16.

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 730 FT8 messages attributed to SP3FHV as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (64%), followed by 80 m (17%) and 160 m (11%). Most decodes (85%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (95%); the estimated median was +10.5 dB.

Overview

730

Messages attributed

UTC dates decoded

Active 15-min windows

+10.5 dB

Estimated median S/N

Bands

160m · 82 80m · 126 40m · 468 20m · 54

First attributed message: 2026-06-09
Last attributed message: 2026-09-16 00:34 UTC

Observed FT8 message patterns

Attributed sample: 730 messages
Active dates: 20 UTC dates
Estimated median S/N: +10.5 dB
Estimated 10th-90th percentile: -5 to +23 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 33, strong (≥ -8 dB) 691.

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 SP3FHV in decoded directed-looking exchanges:

RI1FJZ · Franz Josef Land ×2 RI1FJL · Franz Josef Land VK6IR · Australia BA7IWL · China BG3NBD · China BG5CAH · China DK7ZT · Fed. Rep. of Germany E2WWA · Thailand EC3A · Spain F1PBZ · France F5HNQ · France IQ4JO · Italy

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 SP3FHV

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 · 449 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 552 km (approx.)
Last such locator decoded: 2026-09-16 00:33 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	SP3FHV S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 00:33	80m	+23 / -	RI1FJZ	- / +2	3	✓ Closing fragment
09-16 00:23	80m	+16 / -	RI1FJZ	- / -	10	Partial capture
09-15 17:08	80m	+8 / -19	ZS6BUN	-22 / -15	16	✓ Full exchange observed
09-15 15:44	40m	+12 / -	RI1FJZ	- / -20	9	✓ Closing fragment
09-15 13:39	40m	+8 / -	HF100PKP	-2 / -	4	Partial capture
09-15 13:38	40m	+11 / -	II8IHBC	- / -	3	Partial capture
09-07 04:01	40m	-4 / -	J38DX	- / -	2	Partial capture
09-07 03:40	80m	+11 / -	F6FHZ	-24 / -14	3	✓ Closing observed
09-07 03:38	80m	+12 / -	WC4H	- / -17	3	✓ Closing fragment
09-07 03:35	80m	+14 / -	SO100PKP	- / -	2	Partial capture
09-07 03:32	80m	+10 / -	KZ7Y	-24 / -10	5	✓ Closing observed
09-07 03:29	80m	+6 / -	KZ7Y	- / -	2	Partial capture
09-07 03:27	80m	+3 / -	YV6BXN	- / -	2	Partial capture
09-07 03:25	80m	+6 / -	SQ100PKP	- / -24	3	Partial capture
09-07 03:24	80m	+12 / +3	DJ4WM	-4 / +8	5	✓ Full exchange observed
09-07 03:23	80m	+14 / -	K9US	-24 / -19	3	✓ Closing observed
09-07 03:20	80m	+8 / -13	G8OO	-12 / -3	8	✓ Full exchange observed
09-07 03:19	80m	+5 / -	SQ100PKP	+7 / -	3	Partial capture
09-07 03:18	80m	+8 / +2	SO100PKP	+1 / -	3	Partial capture
09-03 22:24	160m	- / -	UR9QQ	-16 / -	4	Partial capture
09-03 22:24	160m	- / -	US2YW	+17 / -	3	Partial capture
09-03 22:22	160m	+4 / -11	VK6IR	-16 / -13	4	✓ Full exchange observed
09-03 21:37	160m	+1 / -	RI1FJL	- / -20	4	Partial capture
09-03 21:24	160m	+4 / -	RI1FJL	- / -	6	Partial capture
09-03 21:01	160m	+2 / -	RI1FJL	- / -	6	Partial capture
09-03 20:56	160m	- / -	E70SZ	-15 / -	4	Partial capture
09-03 20:56	160m	- / -	OK1DXR	-3 / -	10	Partial capture
09-03 16:40	80m	+10 / -	HS0ZND	- / -	2	Partial capture
09-03 16:33	80m	+9 / -	VU2CPL	- / -	10	Partial capture
09-01 19:26	80m	- / -	IU3RRX	0 / -	2	Partial capture
09-01 18:43	80m	+6 / -	P29YY	- / -	2	Partial capture
08-30 22:37	80m	- / -	DL9KM	-15 / -	6	Partial capture
08-30 22:37	80m	- / -	F5MXH	-8 / -	3	Partial capture
08-30 22:35	80m	+21 / -	DL3HN	-12 / +3	7	✓ Full exchange observed
08-30 22:35	80m	+20 / -	RD7O	-1 / -	6	✓ Full exchange observed
08-30 22:34	80m	+24 / +2	RN6HK	+5 / +8	5	✓ Full exchange observed
08-30 22:32	80m	+22 / -	F4GTB	+7 / -	5	✓ Full exchange observed
08-30 21:07	160m	+3 / -	RI1FJL	- / -	27	Partial capture
08-30 20:58	160m	+5 / -	RI1FJL	- / -	9	Partial capture
08-30 20:43	160m	+3 / -	RI1FJL	- / -12	22	✓ Closing fragment
08-26 19:52	80m	-1 / -	RI1FJL	- / -8	27	Partial capture
08-26 19:46	80m	-9 / -	RI1FJL	- / -	4	Partial capture
08-26 02:10	80m	+14 / -	CT2HEX	- / -11	4	✓ Closing fragment
08-26 02:07	80m	+15 / -	G6NBF	-14 / 0	3	Partial capture
08-26 02:02	80m	+20 / -	WZ4K	- / -17	2	Partial capture
07-18 17:15	40m	-2 / -	T22TT	- / -	6	Partial capture
07-16 15:01	20m	- / -	R6DVV	-19 / -	2	Partial capture
07-16 15:01	20m	- / +3	R4FDW	-14 / -	2	Partial capture
07-09 08:17	20m	- / -	RL6MT	+2 / -	4	Partial capture
07-09 08:14	20m	-7 / -	T22TT	- / -12	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
171715 +16 1026  ZS6BUN SP3FHV R-15 (x2)
002345 +21 3047  RI1FJZ SP3FHV JO72 (x13)

40m

UTC    dB Audio  Message
133900 +12 3087  II8IHBC SP3FHV JO72
133930 +11 3087  <HF100PKP> SP3FHV JO72 (x2)
134015  -2 1394  SP3FHV HF100PKP +15
134030  +8 1393  HF100PKP SP3FHV R+16
154215  +4 3049  RI1FJZ SP3FHV JO72 (x10)

160m

UTC    dB Audio  Message
213745  -2 1127  RI1FJL SP3FHV JO72 (x4)
222230 -16  713  SP3FHV VK6IR -11
222245 +11 1382  VK6IR SP3FHV R-13 (x3)
222430 +17 1382  SP3FHV US2YW KN28
222430 -18 1637  SP3FHV UR9QQ KN77
222500 +15 1382  SP3FHV US2YW KN28
222500 -14 1637  SP3FHV UR9QQ KN77
222530 +18 1382  SP3FHV US2YW KN28
222600 -19 1637  SP3FHV UR9QQ KN77 (x2)

20m

UTC    dB Audio  Message
193900 +15 2846  <...> SP3FHV JO72
081415 -12 1091  T22TT SP3FHV JO72 (x3)
081730  +4 2627  SP3FHV RL6MT LN08 (x4)
150115 -11 1500  SP3FHV R4FDW +03
150145 -20 1668  SP3FHV R6DVV KN95 (x2)
150215 -18 1500  SP3FHV R4FDW +03
151945 +12 3041  SP3FHV UA6YW +04
214215  -8 2687  SP3FHV F1PBZ RR73
055945 -10  380  SP3FHV UR4QWW KN77

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