HB3XCE — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland Most frequent locator attributed to this token: JN46

Receiver-side FT8 activity involving HB3XCE, decoded by SO8OO in southeastern Poland. 112 FT8 messages attributed to this token as transmitter, on 80m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-09-21.

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 112 FT8 messages attributed to HB3XCE as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Most decodes (100%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.

Overview

112

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

80m · 112

First attributed message: 2026-08-23
Last attributed message: 2026-09-21 16:53 UTC

Observed FT8 message patterns

Attributed sample: 112 messages
Active dates: 7 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -23 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 62, moderate (-15 to -9 dB) 43, strong (≥ -8 dB) 7.

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 HB3XCE in decoded directed-looking exchanges:

9A2AA · Croatia DG3YEV · Fed. Rep. of Germany DJ9WH · Fed. Rep. of Germany DL1UDO · Fed. Rep. of Germany DO1KDZ · Fed. Rep. of Germany DO8JB · Fed. Rep. of Germany DO9SAM · Fed. Rep. of Germany F1OBJ · France HA1TJ · Hungary IQ4JO · Italy IW2CAK · Italy M7RFR · England

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 HB3XCE

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: JN46 · 82 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,020 km (approx.)
Last such locator decoded: 2026-09-20 19:21 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	HB3XCE S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 16:53	80m	-24 / -	DC7KM	+4 / +8	3	Partial capture
09-20 19:21	80m	- / -	DL3XRZ	-16 / -	4	Partial capture
09-20 19:19	80m	- / -10	DG3YEV	+6 / -	3	✓ Closing fragment
09-20 18:55	80m	- / -	DL3XRZ	-20 / -	2	Partial capture
09-20 18:02	80m	- / -4	DK0KG	-3 / -	2	Partial capture
09-20 17:57	80m	-18 / -16	DO8JB	-1 / -3	7	✓ Full exchange observed
09-20 17:25	80m	-10 / -18	M7RFR	-15 / -7	4	✓ Full exchange observed
09-20 17:13	80m	-10 / -3	DJ9WH	+10 / -	5	✓ Full exchange observed
09-20 17:06	80m	- / -23	SP5GW	+15 / -	3	✓ Closing fragment
09-20 16:32	80m	-22 / +1	IW2CAK	-5 / +9	4	✓ Full exchange observed
09-20 16:19	80m	-20 / -	IZ5FSO	- / -3	2	Partial capture
09-20 16:13	80m	-18 / -	YO7CFD	- / -	2	Partial capture
09-20 15:49	80m	- / -10	OE5DML	+4 / -	3	✓ Closing fragment
09-15 20:42	80m	- / -18	OK1UOZ	+12 / -	2	✓ Closing fragment
09-15 20:33	80m	-11 / -15	HA1TJ	-4 / -3	5	✓ Full exchange observed
09-15 20:28	80m	-16 / -	ON6CQ	- / -11	2	Partial capture
09-14 20:57	80m	-13 / -	OK9DMR	- / -	3	Partial capture
09-14 20:44	80m	-14 / -8	DO1KDZ	+9 / -	5	✓ Full exchange observed
09-14 20:40	80m	-18 / -	F1OBJ	-1 / -	2	✓ Closing observed
09-14 20:38	80m	-16 / -7	OZ1HPS	-6 / +9	4	✓ Full exchange observed
09-14 19:30	80m	-20 / -	UA4FKT	+2 / -3	6	Partial capture
09-14 19:16	80m	-11 / -19	OE5ABL	-2 / +2	3	✓ Full exchange observed
09-14 19:03	80m	- / -26	SV9MBH	-19 / -	2	Partial capture
09-14 18:59	80m	-10 / -	DO1DMR	-7 / +2	3	Partial capture
09-14 18:53	80m	-17 / -19	SM7OYP	+1 / -	4	Partial capture
09-13 21:04	80m	-16 / -18	YU7AS	+8 / +6	4	Partial capture
09-13 21:02	80m	-13 / -	OK2SPZ	- / -	2	Partial capture
09-13 20:32	80m	- / -13	DO9SAM	+5 / -	5	✓ Closing fragment
09-13 20:25	80m	- / -10	SN31ROT	+18 / -	2	Partial capture
09-13 20:24	80m	-15 / -	IU7GSN	-1 / +5	3	Partial capture
09-13 20:20	80m	- / -5	OZ1AXG	+14 / -	2	✓ Closing fragment
09-13 20:11	80m	- / -14	9A2AA	+4 / -	3	✓ Closing fragment
09-13 20:06	80m	- / -22	PI4DX	+10 / -	5	✓ Closing fragment
09-13 20:00	80m	- / -20	HA1DCQ	+2 / -	2	Partial capture
09-12 21:29	80m	-17 / -	HF9T	- / -	4	Partial capture
09-12 21:24	80m	-18 / -8	OH6FSO	-10 / -24	6	✓ Full exchange observed
08-23 16:56	80m	- / -8	IQ4JO	-13 / -	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
185200  -9 1123  CQ HB3XCE JN46
185500 -24  329  HB3XCE DL3XRZ JN59 (x2)
190900 -19  939  CQ HB3XCE JN46
191915  +4  268  HB3XCE DG3YEV JN68 (x3)
192100  -3  381  CQ HB3XCE JN46
192130 -21  330  HB3XCE DL3XRZ JN59 (x4)
165330  -3  885  HB3XCE DC7KM JO62
165345 -24  885  DC7KM HB3XCE +08
165400 +11  885  HB3XCE DC7KM JO62

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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