OH7WB — 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: Finland Most frequent locator attributed to this token: KP31

Receiver-side FT8 activity involving OH7WB, decoded by SO8OO in southeastern Poland. 85 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-11-05.

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 85 FT8 messages attributed to OH7WB as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (60%), followed by 40 m (36%) and 20 m (4%). 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 (87%); the estimated median was -1 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

80m · 51 40m · 31 20m · 3

First attributed message: 2026-06-09
Last attributed message: 2026-11-05 05:11 UTC

Observed FT8 message patterns

Attributed sample: 85 messages
Active dates: 15 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -11 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 74.

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 OH7WB in decoded directed-looking exchanges:

G0BLB · England ×2 LZ1ZF · Bulgaria ON4AOI · Belgium DL1YFS · Fed. Rep. of Germany DL7ACA · Fed. Rep. of Germany DL8TV · Fed. Rep. of Germany DL9KM · Fed. Rep. of Germany F1PBZ · France F5PBG · France ON3MOH · Belgium UA3NFG · European Russia UA4FKT · 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 OH7WB

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: KP31 · 49 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,325 km (approx.)
Last such locator decoded: 2026-11-05 05:03 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	OH7WB S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 05:10	80m	+8 / -4	SP3HUU	+15 / -9	6	✓ Full exchange observed
11-05 05:08	80m	+11 / -7	G0BLB	-3 / -2	5	✓ Full exchange observed
11-05 05:04	80m	+15 / -13	DO9BAU	-4 / -8	10	✓ Full exchange observed
11-05 05:04	80m	- / -	G0BLB	+1 / -	3	Partial capture
11-05 05:03	80m	-1 / -6	EA1IOK	-10 / -17	6	✓ Full exchange observed
11-04 15:45	40m	+5 / -	UA3NFG	- / +1	3	✓ Closing fragment
11-04 15:41	40m	-1 / -	DL1YFS	-18 / -5	5	✓ Closing observed
11-04 15:41	40m	+1 / -4	DL9KM	-7 / -1	5	✓ Full exchange observed
11-04 15:04	80m	-22 / -	R7LA	-8 / -3	4	✓ Closing observed
11-04 06:48	40m	-6 / -	ZZ5UNO	- / -	2	Partial capture
11-04 06:45	40m	-2 / -	OA4ENG	- / -5	2	Partial capture
11-04 06:41	40m	0 / -	ZZ5UNO	- / -	3	Partial capture
11-03 21:01	80m	-2 / -	AP2AM	- / -	4	Partial capture
11-03 20:37	80m	-1 / -	N5QS	- / -	5	Partial capture
11-03 17:34	40m	+13 / -3	DL8TV	-1 / -4	6	✓ Full exchange observed
11-03 17:34	40m	- / -	EA1KCN	-10 / -	4	Partial capture
11-03 17:32	40m	+3 / +1	DL7ACA	+12 / -1	6	✓ Full exchange observed
11-03 17:26	80m	-8 / -23	OH5LF	+3 / -6	9	✓ Full exchange observed
11-03 17:25	80m	-5 / -10	RK6OQ	+5 / -9	6	✓ Full exchange observed
10-31 22:03	80m	- / -	9A5E	+10 / -	3	Partial capture
10-31 22:03	80m	+1 / -10	DB1BW	+2 / -12	4	✓ Full exchange observed
10-21 20:11	40m	- / -5	ON3MOH	+12 / -	2	✓ Closing fragment
10-19 12:36	40m	0 / -5	F1PBZ	0 / -16	4	✓ Full exchange observed
10-17 19:14	40m	- / -3	OS4K	-12 / -	2	Partial capture
10-10 07:15	60m	- / -	DD6ZV	+5 / -	7	Partial capture
10-10 07:12	40m	- / -	UA4FKT	-4 / -	4	✓ Closing fragment
10-06 03:38	80m	-4 / -	C5R	- / -	3	Partial capture
10-04 17:00	40m	- / -8	F5PBG	-12 / -	3	✓ Closing fragment
10-03 17:16	80m	+6 / -	LY8O	- / -	3	Partial capture
09-04 21:06	80m	0 / -	RI1FJL	- / -	3	Partial capture
08-23 13:01	20m	- / -10	ON4AOI	+18 / -	2	✓ Closing fragment
08-10 14:01	20m	- / -9	LZ1ZF	-6 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
050715  -9 1902  OH7WB DO9BAU R-13
050730 +18 2904  DO9BAU OH7WB RR73
050745  +0 1902  OH7WB DO9BAU 73
050800 +18 2904  DO9BAU OH7WB 73
050845  -1 1499  OH7WB G0BLB IO81
050900 +16 2904  G0BLB OH7WB -02
050915  -8 1499  OH7WB G0BLB R-07 (x2)
051000  +6 2904  G0BLB OH7WB 73
051015 +15 1558  OH7WB SP3HUU JO71
051030  +9 2904  SP3HUU OH7WB -09
051045 +16 1558  OH7WB SP3HUU R-04
051100  +7 2904  SP3HUU OH7WB RR73
051115 +14 1558  OH7WB SP3HUU 73
051130  +7 2904  SP3HUU OH7WB 73

40m

UTC    dB Audio  Message
064845  -7 2941  ZZ5UNO OH7WB KP31
154045  -2 2940  CQ OH7WB KP31
154100  -8 1786  OH7WB DL9KM JN68
154115  +3 2940  DL9KM OH7WB -01
154130  -7 1787  OH7WB DL9KM R-04
154130 -20 1855  OH7WB DL1YFS JO41
154145  -1 2939  DL9KM OH7WB RR73
154200  -7 1787  OH7WB DL9KM 73
154315  +0 2939  DL1YFS OH7WB -05 (x2)
154400 -17 1855  OH7WB DL1YFS 73
154415  -5 2940  DL1YFS OH7WB 73
154545  +8 2940  UA3NFG OH7WB +01 (x3)

60m

UTC    dB Audio  Message
181300 -14  944  OH7WB LA2GCA R+04
071545  +5 2935  OH7WB DD6ZV JO62 (x7)

20m

UTC    dB Audio  Message
140115  -7 1136  OH7WB LZ1ZF -09 (x3)
190500 -12 1523  OH7WB IZ6BYS -05
130100 +17  605  OH7WB ON4AOI -10 (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.

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