OT8T — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Most frequent locator attributed to this token: JO21

Receiver-side FT8 activity involving OT8T, decoded by SO8OO in southeastern Poland. 1,905 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 44 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-08.

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 1,905 FT8 messages attributed to OT8T as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (48%), followed by 20 m (35%) and 80 m (15%). Most decodes (64%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

1,905

Messages attributed

UTC dates decoded

280

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 283 40m · 921 20m · 660 10m · 41

First attributed message: 2026-06-08
Last attributed message: 2026-09-08 06:27 UTC

Observed FT8 message patterns

Attributed sample: 1,905 messages
Active dates: 44 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -22 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 680, moderate (-15 to -9 dB) 641, strong (≥ -8 dB) 584.

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 OT8T in decoded directed-looking exchanges:

E70A · Bosnia-Herzegovina ×3 HZ1TT · Saudi Arabia ×2 DF2RG · Fed. Rep. of Germany ×2 BA3QIQ · China ×2 UT4PA · Ukraine ×2 9A3K · Croatia ×2 IK4LZH · Italy ×2 TN8GD · Republic of the Congo ×2 A61FJ · United Arab Emirates PD0YL · Netherlands IW5ALZ · Italy DM3YBN · Fed. Rep. of Germany

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 OT8T

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: JO21 · 1,485 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,192 km (approx.)
Last such locator decoded: 2026-09-08 06:27 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	OT8T S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-08 06:25	40m	-11 / -	HK3TY	- / -	5	Partial capture
09-08 06:23	40m	-9 / -	VO1ANJ	- / -	4	Partial capture
09-08 06:09	80m	-22 / -	9Z4A	- / -	16	Partial capture
09-08 05:47	40m	-6 / -	K0YEQ	- / -	26	Partial capture
09-08 05:43	40m	-2 / -	KN4DS	- / -	5	Partial capture
09-07 20:39	40m	-9 / -	A61FJ	- / -18	8	Partial capture
09-07 20:35	40m	-12 / -	D44TWO	- / -	3	Partial capture
09-07 20:13	40m	-7 / -	SA3LEJ	- / -	10	Partial capture
09-07 20:05	40m	-12 / -	VJ6X	- / -	11	Partial capture
09-07 19:53	40m	-10 / -	SA3LEJ	- / -	2	Partial capture
09-07 19:28	80m	-6 / -	5Z4VJ	- / -	3	Partial capture
09-07 07:46	40m	-13 / -	W5ZJ	- / -	3	Partial capture
09-07 07:45	40m	-13 / -	KS4OT	- / -	2	✓ Closing fragment
09-07 07:41	40m	-14 / -	EA2AUK	- / 0	2	✓ Closing fragment
09-07 07:39	40m	-10 / -	KB9ZM	- / -14	4	✓ Closing fragment
09-07 07:34	40m	-14 / -	KE8ZMQ	- / -18	7	✓ Closing fragment
09-07 07:31	40m	-14 / -	J38DX	- / -18	8	✓ Closing fragment
09-07 07:29	40m	-12 / -	KS4OT	- / -	4	Partial capture
09-07 07:26	40m	-15 / -	KA4ACE	- / -19	4	✓ Closing fragment
09-07 07:24	40m	-17 / -	AA4SS	- / -6	4	✓ Closing fragment
09-07 07:22	40m	-13 / -	J38DX	- / -	3	Partial capture
09-07 07:19	40m	-14 / -	KS4OT	- / -	3	Partial capture
09-07 07:16	40m	-14 / -	KJ5PTH	- / -20	8	Partial capture
09-07 07:11	40m	-14 / -	J38DX	- / -	11	Partial capture
09-07 07:05	40m	-19 / -	D44TWO	- / -	8	Partial capture
09-03 07:22	40m	-22 / -	VA2EHQ	- / -	2	Partial capture
09-03 07:18	40m	-22 / -	VA2EHQ	- / -	2	Partial capture
09-03 07:14	40m	-20 / -	W7YA	- / -	2	Partial capture
09-02 20:46	40m	-16 / -	JE6EFG	- / -	8	Partial capture
09-02 20:41	40m	-12 / -	JE6EFG	- / -	2	Partial capture
09-02 20:41	40m	- / -	9A3K	+22 / -	2	Partial capture
09-01 18:23	40m	-11 / -	R3WDU	- / -13	3	Partial capture
09-01 18:17	40m	-12 / -17	R3WDU	-15 / -	5	Partial capture
09-01 18:10	40m	- / -6	OH9FTW	-6 / -	2	✓ Closing fragment
08-31 20:36	80m	-3 / -	TA2LG	- / -	13	Partial capture
08-31 20:28	80m	-9 / -	H72JJP	- / -	13	Partial capture
08-31 20:05	80m	-12 / -	EI4KF	- / -	23	Partial capture
08-31 19:47	80m	-6 / -	EI4KF	- / -	8	Partial capture
08-31 19:38	80m	-9 / -	EI4KF	- / -	10	Partial capture
08-31 19:31	80m	-8 / -11	RA4CPA	-9 / -11	6	Partial capture
08-31 19:22	80m	-8 / -	EI4KF	- / -	9	Partial capture
08-31 10:50	20m	- / +4	OK1MDK	+5 / -	2	✓ Closing fragment
08-31 09:41	20m	-7 / -	CT7ATA	- / -	9	Partial capture
08-31 09:37	20m	+1 / -15	UA3RN	-4 / -7	7	✓ Full exchange observed
08-30 19:41	80m	-1 / -	ES1CYO	- / -15	3	Partial capture
08-30 19:34	80m	-2 / -	UX1AA	- / -	4	Partial capture
08-30 18:53	80m	-7 / -	H89YJI	- / -	17	Partial capture
08-30 18:46	80m	- / -	UR9QQ	-5 / -	2	Partial capture
08-30 18:46	80m	-13 / -	UT7AA	- / -	4	Partial capture
08-30 18:35	80m	-14 / -13	UR9QQ	-5 / -8	14	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
055715 -13 1021  K0YEQ OT8T JO21 (x6)
062300 -11 1020  VO1ANJ OT8T JO21 (x4)
062545 -13 1020  HK3TY OT8T JO21 (x5)

80m

UTC    dB Audio  Message
060930 -19  985  9Z4A OT8T JO21 (x15)

20m

UTC    dB Audio  Message
093900 -10 1102  OT8T UA3RN -15
093915  -3 1772  UA3RN OT8T R-02
093930  +1 1103  OT8T UA3RN RR73
093945  +1 1772  UA3RN OT8T 73
094100 -10 1772  CT7ATA OT8T JO21 (x9)
105015  +7 1958  OT8T OK1MDK +04 (x2)

10m

UTC    dB Audio  Message
080000  -5 2247  OT8T IK2UCK 73
080000  -4 2631  OT8T 9A3K JN65
080030  -9 2283  OT8T HB9ACA +11 (x2)
080130  +0 2631  OT8T 9A3K JN65 (x3)
080315 -20 2247  9A3SM OT8T JO21
082430 -19 2246  HB9FLH OT8T JO21
082645 +11 2534  OT8T IK1MNJ -13 (x2)
083245 -21 2246  S51XA OT8T JO21
093930  +8  557  OT8T Z34K -11 (x2)
110715 -18 2240  KP2B OT8T JO21

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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