HB3YBG — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland Most frequent locator attributed to this token: JN36

Receiver-side FT8 activity involving HB3YBG, decoded by SO8OO in southeastern Poland. 1,420 FT8 messages attributed to this token as transmitter, on 80m, 10m, across 30 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-09-30.

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 1,420 FT8 messages attributed to HB3YBG as the transmitting token by decoded message structure across 30 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (99%), followed by 10 m (1%). Most decodes (98%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -3 dB.

Overview

1,420

Messages attributed

UTC dates decoded

136

Active 15-min windows

-3 dB

Estimated median S/N

Bands

80m · 1,412 10m · 8

First attributed message: 2026-06-14
Last attributed message: 2026-09-30 22:00 UTC

Observed FT8 message patterns

Attributed sample: 1,420 messages
Active dates: 30 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -12.4 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 66, moderate (-15 to -9 dB) 270, strong (≥ -8 dB) 1,084.

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 HB3YBG in decoded directed-looking exchanges:

ON4MAP · Belgium ×4 R5AV · European Russia ×3 9A5E · Croatia ×2 CT2GQA · Portugal ×2 DL9KM · Fed. Rep. of Germany ×2 DM5JBN · Fed. Rep. of Germany ×2 DO1OAS · Fed. Rep. of Germany ×2 DO5PY · Fed. Rep. of Germany ×2 DO7DNY · Fed. Rep. of Germany ×2 DO8JB · Fed. Rep. of Germany ×2 DO9JTR · Fed. Rep. of Germany ×2 G0THY · England ×2

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 HB3YBG

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: JN36 · 687 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,158 km (approx.)
Last such locator decoded: 2026-09-30 22:00 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	HB3YBG S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-30 21:57	80m	-4 / -	DO6THI	- / -	6	Partial capture
09-30 21:54	80m	-3 / -14	SN100PKP	+10 / -6	2	Partial capture
09-30 21:47	80m	-8 / -9	MX0SQC	-8 / +10	5	✓ Full exchange observed
09-30 21:47	80m	-8 / -10	EO210WLP	+2 / +5	4	Partial capture
09-30 21:46	80m	-6 / -	LZ936BA	- / -7	3	Partial capture
09-30 21:45	80m	-8 / -	8S2C	-5 / -14	4	✓ Closing observed
09-30 21:38	80m	-6 / -	9A2VX	- / -2	2	✓ Closing fragment
09-30 21:35	80m	-6 / -	G0HSP	-6 / +7	3	✓ Closing observed
09-30 21:35	80m	-6 / +6	DF5AH	0 / +2	5	✓ Full exchange observed
09-30 21:18	80m	-3 / -8	LA6MNA	+2 / -3	12	✓ Full exchange observed
09-30 21:16	80m	-6 / -	MD9IOM	- / -	2	Partial capture
09-30 21:15	80m	-3 / -7	Z61DX	+2 / -7	5	✓ Full exchange observed
09-27 21:32	80m	-8 / -5	R3ICU	+4 / -15	7	Partial capture
09-27 21:30	80m	0 / -	IK4IDY	-9 / +8	5	✓ Full exchange observed
09-27 21:28	80m	0 / -	R5AV	- / -11	2	✓ Closing fragment
09-27 21:26	80m	0 / +7	ON4MAP	-7 / +10	5	✓ Full exchange observed
09-27 21:22	80m	- / -7	MW0DNF	-8 / -	2	✓ Closing fragment
09-27 21:16	80m	-3 / -2	OZ1HPS	+4 / +9	7	✓ Full exchange observed
09-27 21:13	80m	+5 / -	G3TKT	- / -19	3	✓ Closing fragment
09-27 21:11	80m	0 / -2	EI9FVB	-1 / -	6	✓ Full exchange observed
09-27 21:08	80m	+1 / -	MW3LSG	- / -	3	Partial capture
09-27 21:06	80m	+5 / -1	LA8AV	+6 / +8	5	✓ Full exchange observed
09-27 21:05	80m	+2 / -	G4XEX	- / -3	3	✓ Closing fragment
09-27 21:03	80m	+5 / -9	UB1AUW	-10 / -5	5	✓ Full exchange observed
09-27 20:59	80m	-1 / -4	OK9DMR	-20 / -19	6	✓ Full exchange observed
09-27 20:56	80m	-4 / -25	S57MPU	+8 / +8	11	Partial capture
09-27 20:51	80m	-7 / -18	OH5DJZ	-6 / -18	5	✓ Full exchange observed
09-27 20:49	80m	-5 / -14	F4MUD	-18 / 0	4	Partial capture
09-27 20:45	80m	-6 / -	DM6MAR	-18 / -8	3	✓ Closing observed
09-27 20:44	80m	0 / -	F4NJU	- / -4	2	✓ Closing fragment
09-26 21:39	80m	+2 / -	LA1HW	- / -11	3	Partial capture
09-26 21:35	80m	+4 / -	DA6TAV	-9 / -3	3	✓ Closing observed
09-26 21:34	80m	+6 / +1	DD1OBU	0 / +6	4	✓ Full exchange observed
09-26 21:32	80m	+6 / -10	EA8AR	-17 / -8	5	✓ Full exchange observed
09-26 21:28	80m	+1 / -	DL4NFB	-5 / +7	4	✓ Closing observed
09-26 21:28	80m	-2 / -12	R3DQB	+2 / -6	6	✓ Full exchange observed
09-26 21:21	80m	-4 / -	HB9EXN	- / -	2	✓ Closing fragment
09-26 21:21	80m	+1 / -2	LA4NM	+3 / +10	14	✓ Full exchange observed
09-26 21:15	80m	-2 / -	SN100PKP	- / -14	2	Partial capture
09-26 21:12	80m	-6 / -	IK1LJO	- / +10	2	✓ Closing fragment
09-26 21:12	80m	-2 / -6	DO8JB	-2 / +5	7	✓ Full exchange observed
09-26 21:11	80m	-3 / -	DO1BOC	- / +3	2	✓ Closing fragment
09-26 21:10	80m	-3 / +4	ON4MAP	-18 / -1	5	✓ Full exchange observed
09-26 21:08	80m	-5 / 0	DL1DH	-6 / +4	5	✓ Full exchange observed
09-26 21:07	80m	-4 / -19	LA1QAA	-8 / -2	4	✓ Full exchange observed
09-26 21:05	80m	-2 / -	OE7BRF	- / -1	2	✓ Closing fragment
09-26 21:02	80m	-1 / -	IW2CAK	- / +4	2	Partial capture
09-26 21:01	80m	0 / +5	DL9AJ	+16 / -	5	✓ Full exchange observed
09-26 20:55	80m	- / -13	DO5SMH	-10 / -	2	Partial capture
09-26 20:53	80m	- / -4	G0ACQ	-17 / -	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
214900 -10 1603  LZ936BA HB3YBG R-07
215000  -5 1603  EO210WLP HB3YBG JN36
215015  +4  933  HB3YBG 9A60CBM -05
215030 -10 1603  EO210WLP HB3YBG R+05
215200  -4 1603  CQ HB3YBG JN36
215230 +21 2490  HB3YBG 3Z100PKP -11
215245 -14 1603  9A60CBM HB3YBG R+04
215400 +10  754  HB3YBG SN100PKP -14
215415  -3 2303  SN100PKP HB3YBG R-06
215745  -4 2303  DO6THI HB3YBG JN36 (x6)

10m

UTC    dB Audio  Message
113045 -14 1602  HB3YBG DN9AD JO52
113115 -18 1069  HB3YBG PE1MHY -03
113115 -10 1602  HB3YBG DN9AD JO52
113145 -10 1069  HB3YBG PE1MHY -03 (x3)
113515  +1 2892  HB3YBG DN9BLN JO62 (x3)
114330 -13  695  YO2MHF HB3YBG R-07
114500  +1  629  HB3YBG M0BEW -06 (x2)
181830 -16 1906  F2JD HB3YBG JN36 (x3)

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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