SP5HWB — 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: Poland Most frequent locator attributed to this token: JO92

Receiver-side FT8 activity involving SP5HWB, decoded by SO8OO in southeastern Poland. 1,081 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-31.

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 1,081 FT8 messages attributed to SP5HWB as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (75%), followed by 80 m (21%) and 60 m (4%). Most decodes (58%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -5.1 dB.

Overview

1,081

Messages attributed

UTC dates decoded

100

Active 15-min windows

-5.1 dB

Estimated median S/N

Bands

80m · 225 60m · 43 40m · 806 20m · 6 10m · 1

First attributed message: 2026-06-11
Last attributed message: 2026-10-31 06:34 UTC

Observed FT8 message patterns

Attributed sample: 1,081 messages
Active dates: 31 UTC dates
Estimated median S/N: -5.1 dB
Estimated 10th-90th percentile: -16 to +12.5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 122, moderate (-15 to -9 dB) 270, strong (≥ -8 dB) 689.

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 SP5HWB in decoded directed-looking exchanges:

SP5ROM · Poland ×2 ON7AN · Belgium OZ9FF · Denmark SP7SZJ · Poland SP9DOU · Poland SQ5OMY · Poland SQ9AWN · Poland ZL1VAH · New Zealand GM6URC · Scotland MI7XHT · Northern Ireland OZ1TDK · Denmark R7IW · European Russia

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 SP5HWB

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: JO92 · 351 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 345 km (approx.)
Last such locator decoded: 2026-09-26 16:54 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	SP5HWB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-31 06:32	80m	0 / -	DL1DY/QRP	- / -16	2	Partial capture
10-25 18:51	80m	+18 / -	R7IW	- / -8	2	✓ Closing fragment
10-25 18:49	80m	+18 / -7	MI7XHT	-10 / -4	4	✓ Full exchange observed
10-25 18:47	80m	+12 / -	SP5ROM	- / -2	2	✓ Closing fragment
09-28 16:34	40m	- / +2	IK4TVP	-12 / -	5	Partial capture
09-28 16:33	80m	- / -	RN3YN	-6 / -	3	Partial capture
09-28 16:32	40m	+2 / -	SQ100PKP	+4 / +3	2	Partial capture
09-28 16:30	80m	-2 / -	F/G0LRH	- / -8	2	Partial capture
09-28 16:23	80m	-3 / -12	HF100PKP	+5 / -4	3	Partial capture
09-27 16:50	40m	+13 / -7	SQ100PKP	+11 / -4	2	Partial capture
09-26 16:56	80m	+6 / +4	SQ7OBB	-20 / -2	4	✓ Full exchange observed
09-25 16:27	40m	+6 / -	SP9DOU	- / -9	2	✓ Closing fragment
09-25 16:23	40m	+14 / +7	ON7AN	-4 / -2	5	✓ Full exchange observed
09-25 16:21	40m	+7 / -	SQ9AWN	- / -16	9	✓ Closing fragment
09-25 16:18	40m	+13 / -7	3Z100PKP	-7 / -14	3	Partial capture
09-25 16:16	40m	+10 / -	YB2CLC	- / -16	2	Partial capture
09-25 16:15	40m	+8 / -	OZ9FF	- / -6	2	✓ Closing fragment
09-20 05:34	40m	- / -16	SN100PKP	-8 / -	2	Partial capture
09-20 05:09	80m	+24 / -	SQ7OBB	- / -3	4	Partial capture
09-20 05:05	80m	+23 / -2	GM6URC	-24 / -5	3	✓ Full exchange observed
09-20 05:05	80m	+16 / -	OK1UOZ	+14 / +1	13	Partial capture
09-20 05:03	80m	+22 / -	SQ7OBB	- / 0	3	Partial capture
09-20 05:01	80m	+20 / -	SP9TDA	+14 / 0	5	✓ Full exchange observed
09-20 04:59	80m	+20 / +3	OZ1TDK	-8 / -5	4	✓ Full exchange observed
09-20 04:57	80m	+16 / -	SQ7OBB	- / -9	5	Partial capture
09-19 17:10	80m	+7 / -	LZ936BA	- / -2	2	Partial capture
09-13 11:37	40m	+6 / -	KH8WW	- / -	2	Partial capture
09-07 17:50	10m	- / -	CT7AUT	-13 / -	4	Partial capture
08-18 19:05	40m	-6 / +5	SQ5OMY	-14 / -7	4	✓ Full exchange observed
08-18 18:46	40m	-1 / -	ZL1VAH	- / -16	3	✓ Closing fragment
08-18 18:43	40m	-13 / -	SP5ROM	- / -5	3	✓ Closing fragment
08-16 14:03	40m	- / -	SP4LVG	-12 / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
163330  -3  700  SP5HWB RN3YN KO73 (x3)
184715 +14 1015  SP5ROM SP5HWB -02 (x2)
184930 +17  494  MI7XHT SP5HWB -04
184945 -10  494  SP5HWB MI7XHT R-07
185000 +19  494  MI7XHT SP5HWB RR73 (x2)
185100 +17 1398  R7IW SP5HWB -08 (x2)
063145  +1  615  SQ100LKK SP5HWB -16
063215  -1  614  DL1DY/QRP SP5HWB -16 (x2)
063445  -4 1113  UA9JTJ/4 SP5HWB -16

40m

UTC    dB Audio  Message
162730  +4  883  SP9DOU SP5HWB -09 (x2)
162830  -1 1355  SQ9AWN SP5HWB -08 (x2)
165045 +13 2731  SQ100PKP SP5HWB -04
165100 +11 2731  SP5HWB SQ100PKP R-07
165130 +12 2731  SP5HWB RR73; F4NKF <...> -14
162630 -13 1421  SP5HWB SP100PKP R+08
163245  +2 1826  SQ100PKP SP5HWB +03
163330  +4 1827  SP5HWB SQ100PKP R+14
163430  -7 1691  SP5HWB IK4TVP +02 (x5)

10m

UTC    dB Audio  Message
175030 -12 1529  SP5HWB CT7AUT IM67 (x4)

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

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