OH1HB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Finland Most frequent locator attributed to this token: KP10

Receiver-side FT8 activity involving OH1HB, decoded by SO8OO in southeastern Poland. 264 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-20.

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 264 FT8 messages attributed to OH1HB as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (52%), followed by 160 m (34%) and 40 m (12%). Most decodes (89%) fell within the six-hour window 20:00-02:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -5 dB.

Overview

264

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

160m · 89 80m · 137 40m · 32 20m · 6

First attributed message: 2026-06-06
Last attributed message: 2026-09-20 20:42 UTC

Observed FT8 message patterns

Attributed sample: 264 messages
Active dates: 24 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -20 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 46, moderate (-15 to -9 dB) 49, strong (≥ -8 dB) 169.

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 OH1HB in decoded directed-looking exchanges:

SP1ZS · Poland ×2 7X2TT · Algeria OK1DXR · Czech Republic UR5EDX · Ukraine YL3CW · Latvia HZ1TT · Saudi Arabia F5PBG · France DL4DP · Fed. Rep. of Germany HK3X · Colombia K1ZM · United States UA9CK · Asiatic Russia UY5AX · Ukraine

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 OH1HB

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: KP10 · 189 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,177 km (approx.)
Last such locator decoded: 2026-09-20 20:39 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	OH1HB S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 20:39	160m	-3 / -	MW7GQB	- / -14	5	Partial capture
09-20 20:36	160m	-1 / -	C31CT	- / -	5	Partial capture
09-19 22:03	160m	-9 / -25	7X2TT	-1 / -9	11	✓ Full exchange observed
09-19 21:54	160m	-12 / -	CT2GQA	- / -	3	Partial capture
09-19 21:49	160m	-11 / -	7X2TT	- / -	9	Partial capture
09-19 19:56	160m	-12 / +4	YL3CW	+1 / -	4	✓ Closing observed
09-19 19:54	160m	-14 / -	EA8BS	- / -	2	Partial capture
09-19 19:45	160m	- / -13	EX7CQ	-12 / -	2	Partial capture
09-19 19:36	160m	-24 / -	EX7CQ	- / -	4	Partial capture
09-19 19:27	160m	-18 / -	EX7CQ	- / -	6	Partial capture
09-17 20:00	160m	-15 / -	RI1FJZ	- / -	5	Partial capture
09-17 19:17	160m	-14 / -	RI1FJZ	- / -	2	Partial capture
09-17 19:00	160m	-24 / -	RI1FJZ	- / -	3	Partial capture
09-17 18:52	160m	-20 / -	RI1FJZ	- / -	2	Partial capture
09-16 21:48	160m	-5 / -	RI1FJZ	- / -	4	Partial capture
09-16 21:43	160m	-5 / -	RI1FJZ	- / -	3	Partial capture
09-16 21:31	160m	-13 / -	RI1FJZ	- / -	4	Partial capture
09-16 21:16	160m	-11 / -	RI1FJZ	- / -	2	Partial capture
09-15 19:48	40m	-8 / -	RI1FJZ	- / -	2	Partial capture
09-12 03:08	80m	-14 / -	YV6BXN	- / -	3	Partial capture
09-09 02:15	80m	+11 / -	YV6BXN	- / -	3	Partial capture
09-02 22:16	160m	-20 / -10	OK1DXR	0 / +4	6	✓ Full exchange observed
09-02 22:16	160m	-23 / -	UA3ZUX	+7 / 0	4	Partial capture
09-02 22:15	160m	-20 / +2	UR5EDX	+8 / -6	5	✓ Full exchange observed
08-25 00:00	40m	-7 / -	TI4MHS	- / -	3	Partial capture
08-24 23:55	40m	-4 / -	4S6ARW	- / -	2	Partial capture
08-17 01:49	80m	+2 / -	WT2D	- / -18	4	✓ Closing fragment
08-17 01:46	80m	-6 / -	UA9CK	- / -20	3	✓ Closing fragment
08-17 01:39	80m	+2 / -	VP8A	- / -13	14	✓ Closing fragment
08-06 01:12	80m	- / -	F6FHZ	-18 / -	5	Partial capture
08-06 01:11	80m	+4 / +6	DL4DP	-12 / -10	4	✓ Full exchange observed
08-06 01:09	80m	+4 / -	UY5AX	+2 / -	4	✓ Closing observed
08-06 01:08	80m	+8 / -2	EA7AH	-15 / -14	4	Partial capture
08-06 01:06	80m	+4 / -11	K1ZM	0 / -5	9	✓ Full exchange observed
08-06 01:02	80m	+6 / -	HK3X	- / -14	3	✓ Closing fragment
08-04 21:46	40m	-23 / -	D2ACE	- / -	5	Partial capture
07-18 21:55	80m	-5 / -	<...>	- / -10	3	Partial capture
07-18 00:43	80m	+3 / -	CE8EIO	- / -	4	Partial capture
07-14 01:18	80m	+6 / -16	SP1ZS	-20 / -12	8	✓ Full exchange observed
07-14 01:16	80m	+5 / -16	ZS1J	-13 / -18	7	✓ Full exchange observed
07-14 01:03	80m	+4 / -	ZS1J	- / -12	19	Partial capture
07-10 01:34	40m	- / -	F5PBG	-20 / -	2	✓ Closing fragment
07-09 21:48	80m	+11 / -19	VU2NKS	-22 / -17	5	✓ Full exchange observed
07-09 21:41	80m	+3 / -	YH2AZ	- / -	5	Partial capture
06-30 20:21	20m	- / -5	HZ1TT	-10 / -	2	✓ Closing fragment
06-26 22:16	80m	-9 / -14	HB0/OI5AY	-2 / -2	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
220715 -10 2741  7X2TT OH1HB R-09
220730  +0  496  OH1HB 7X2TT RR73
220745 -14 2740  7X2TT OH1HB 73
221245 -14 2741  MW7GQB OH1HB KP10 (x2)
203630  +0 2554  C31CT OH1HB KP10 (x5)
203930  -6 2554  MW7GQB OH1HB KP10 (x5)

80m

UTC    dB Audio  Message
014615  -1 1138  VP8A OH1HB 73
014645  -4 1138  UA9CK OH1HB -20 (x3)
014915  -2 1138  WT2D OH1HB -18 (x4)
021545 +12 2463  YV6BXN OH1HB KP10 (x6)
205715 -16 1824  RI1FJZ OH1HB KP10

40m

UTC    dB Audio  Message
013530 -20 2065  OH1HB F5PBG 73
214215 -14 2502  D2ACE OH1HB KP10 (x6)
235545  -6 2758  4S6ARW OH1HB KP10 (x2)
235745  -5 1032  TI4MHS OH1HB KP10 (x4)
194845  -8 2731  RI1FJZ OH1HB KP10 (x2)

20m

UTC    dB Audio  Message
202100 -11 1760  OH1HB HZ1TT -05 (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.

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