OH8D — 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: KP20

Receiver-side FT8 activity involving OH8D, decoded by SO8OO in southeastern Poland. 571 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 18 UTC dates in the available aggregate history. Observed between 2026-09-04 and 2026-10-23.

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 571 FT8 messages attributed to OH8D 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 (72%), followed by 40 m (17%) and 160 m (11%). Most decodes (68%) fell within the six-hour window 02:00-08:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7.4 dB.

Overview

571

Messages attributed

UTC dates decoded

Active 15-min windows

-7.4 dB

Estimated median S/N

Bands

160m · 63 80m · 412 40m · 96

First attributed message: 2026-09-04
Last attributed message: 2026-10-23 03:28 UTC

Observed FT8 message patterns

Attributed sample: 571 messages
Active dates: 18 UTC dates
Estimated median S/N: -7.4 dB
Estimated 10th-90th percentile: -15 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 52, moderate (-15 to -9 dB) 198, strong (≥ -8 dB) 321.

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 OH8D in decoded directed-looking exchanges:

ON4MAP · Belgium ×3 F1PBZ · France ×2 9A4ZM · Croatia ×2 DL6EL · Fed. Rep. of Germany ×2 HA7TM · Hungary ×2 SP6FME · Poland ×2 US2YW · Ukraine ×2 MI0OBC · Northern Ireland ×2 R5BM/M · European Russia ×2 ES2AJ · Estonia EW2ZC · Belarus F4JUQ · France

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 OH8D

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: KP20 · 220 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,192 km (approx.)
Last such locator decoded: 2026-10-23 03:28 UTC

Other locator fields attributed to this token: KP10 (36).

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	OH8D S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 03:28	80m	- / -24	S50XX	+12 / -	4	✓ Closing fragment
10-23 03:25	80m	-11 / -16	SM0ASB	-10 / -15	6	✓ Full exchange observed
10-23 03:22	80m	-9 / -4	OM5CM	+13 / -8	6	✓ Full exchange observed
10-23 03:20	80m	-10 / -	ON1JP	- / -21	2	✓ Closing fragment
10-23 03:19	80m	- / -	R6FX	-13 / -	3	Partial capture
10-23 03:18	80m	-5 / -6	4L7T	-24 / -	5	✓ Closing observed
10-23 03:18	80m	- / -	YT3BL	+16 / -	2	Partial capture
10-23 03:17	80m	- / -	R2GCV	-12 / -	6	Partial capture
10-22 16:39	40m	0 / -	YO2UKG	- / -	2	Partial capture
10-18 05:04	80m	- / -7	ON4MAP	-4 / -	4	✓ Closing fragment
10-18 05:02	80m	-12 / +1	ON8WR	+6 / -12	4	✓ Full exchange observed
10-18 05:00	80m	-2 / -	F4FPR	-20 / -	3	✓ Closing observed
10-18 04:57	80m	- / -12	SM7WNM	-3 / -	3	✓ Closing fragment
10-18 04:56	80m	- / -3	F1PSX	-9 / -	3	✓ Closing fragment
10-18 04:53	80m	-6 / +9	DF9JL	+1 / -12	6	✓ Full exchange observed
10-18 04:53	80m	- / -	OH2CRB	-6 / -	2	Partial capture
10-18 04:50	80m	- / -15	F1IQH	-13 / -	4	✓ Closing fragment
10-18 04:46	80m	- / -10	HA3HX	-4 / -	2	✓ Closing fragment
10-18 04:43	80m	- / -14	R1AI	0 / -	4	Partial capture
10-18 04:42	80m	- / -	R2AL	-4 / -	4	Partial capture
10-18 04:41	80m	-10 / -13	G0BLB	0 / -2	6	✓ Full exchange observed
10-18 04:41	80m	-8 / -	LA1HW	-16 / -16	3	✓ Closing observed
10-18 04:38	80m	- / +3	ES5RY	+6 / -	2	✓ Closing fragment
10-17 04:41	80m	- / -2	UR4UM	+2 / -	2	Partial capture
10-16 04:01	160m	- / -	HB9ALO	-14 / -	2	Partial capture
10-16 03:55	160m	-6 / -	OH9EGH	- / -5	3	✓ Closing fragment
10-16 03:53	160m	-4 / -	DL2DAY	- / -16	3	Partial capture
10-16 03:25	160m	-2 / +3	ES2AJ	+10 / -	4	✓ Full exchange observed
10-16 03:25	160m	-3 / -6	IZ1AJJ	-14 / -21	8	✓ Full exchange observed
10-16 03:23	160m	-6 / -18	F5RRS	-4 / 0	3	Partial capture
10-16 03:17	160m	-2 / -9	LZ1ST	-2 / -1	8	✓ Full exchange observed
10-16 03:17	160m	-1 / -12	LA9JKA	-8 / +2	6	✓ Full exchange observed
10-16 03:15	160m	+1 / -	HB9CXZ	+3 / +8	4	✓ Closing observed
10-16 03:13	160m	-4 / -12	LY3BRA	+2 / -	3	✓ Closing observed
10-16 03:13	160m	- / -	UA4FKT	+4 / -	2	Partial capture
10-16 03:11	160m	-9 / -	F4JUQ	-10 / -7	4	✓ Closing observed
10-15 19:21	80m	-13 / -	ON3MOH/P	- / -	2	Partial capture
10-15 19:19	80m	-11 / -7	MM0ULL	-16 / -	3	✓ Closing observed
10-15 19:17	80m	-6 / -10	SO1CJ	+16 / -14	4	✓ Full exchange observed
10-15 19:16	80m	- / -6	EW6BZ	+7 / -	2	✓ Closing fragment
10-15 19:13	80m	-6 / -11	DO5GSH	-13 / -	4	Partial capture
10-15 19:12	80m	- / -12	OE5MON	-3 / -	2	✓ Closing fragment
10-14 04:09	80m	-4 / -22	DK1PH	-12 / -17	5	✓ Full exchange observed
10-14 04:07	80m	+2 / -	R5BM/M	- / -15	3	✓ Closing fragment
10-14 04:07	80m	- / -19	E75W	-1 / -	3	✓ Closing fragment
10-14 04:06	80m	-5 / -1	SP6DOL	-5 / -8	2	Partial capture
10-14 04:03	80m	-5 / -2	DO1OAS	+2 / -1	5	✓ Full exchange observed
10-14 04:01	80m	0 / -	M9XPN	-7 / -2	4	Partial capture
10-14 03:59	80m	0 / -16	IQ4JO	+10 / -1	6	✓ Full exchange observed
10-14 03:58	80m	- / -9	RO5A	-2 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
032430 -13 2051  CQ OH8D KP20 (x3)
032545 -13  965  OH8D SM0ASB JO99
032545 +10 2052  OH8D S50XX JN65
032600 -12 2051  SM0ASB OH8D -15
032615 -12  965  OH8D SM0ASB R-16
032630  -9 2051  SM0ASB OH8D RR73
032645  -6  965  OH8D SM0ASB 73
032700 -11 2051  SM0ASB OH8D 73
032800  -6 2051  CQ OH8D KP20
032815 +11 2052  OH8D S50XX JN65 (x4)

40m

UTC    dB Audio  Message
181145  -6 2172  CQ OH8D KP20
181200  -6 2029  OH8D S58BO JN75
181200  +1 2833  OH8D F6BHK JN24
181215  -6 2172  CQ OH8D KP20
181230  -5 2029  OH8D S58BO JN75
181245  -3 2172  CQ OH8D KP20
181300  -1 2029  OH8D S58BO JN75
181300  -8 2172  OH8D F6BHK JN24
181315  -3 2172  CQ OH8D KP20
181330  -7 2028  OH8D S58BO JN75
181415  -6 2172  SP6JZP OH8D RR73
181445 -11 2172  CQ OH8D KP20
163830  -2 2485  G0CLH OH8D KP20
163930  +1 2485  YO2UKG OH8D KP20 (x2)

10m

UTC    dB Audio  Message
083100  -8  591  OH8D F1PBZ RR73

160m

UTC    dB Audio  Message
035215  -6 2146  CQ OH8D KP20 (x2)
035315  -3 2146  DL2DAY OH8D -16 (x3)
035445  -7 2146  CQ OH8D KP20
035515  -4 2146  OH9EGH OH8D -05
035530 -18 1206  OH8D HB9ALO JN45
035545  -7 2146  OH9EGH OH8D RR73
035600  +1 2146  OH8D US2YW KN28
035615  -6 2146  OH9EGH OH8D 73
035645  -6 2146  CQ OH8D KP20 (x2)
040100 -13 1206  OH8D HB9ALO JN45 (x2)

20m

UTC    dB Audio  Message
054230 -14 2159  OH8D RK4FF -17
171200  +1 2471  OH8D RY7G LN14
182000  -5 2616  OH8D UA6YW -17 (x4)
195745 -19 1573  OH8D ON1DGN -18
054500 -16 1918  OH8D UR3LM KN89 (x2)
055915  -9 1383  OH8D RU6UR -16 (x2)
150730 -10  833  OH8D G6MTI IO81 (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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