HB1C — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving HB1C, decoded by SO8OO in southeastern Poland. 76 FT8 messages attributed to this token as transmitter, on 160m, 40m, 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-29.

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 76 FT8 messages attributed to HB1C as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 160 m (42%) and 20 m (8%). In this small sample, the estimated median decoder S/N was -1 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

160m · 32 40m · 38 20m · 6

First attributed message: 2026-08-29
Last attributed message: 2026-08-29 23:14 UTC

Observed FT8 message patterns

Attributed sample: 76 messages
Active dates: 1 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -14 to +12 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 64.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with HB1C in decoded directed-looking exchanges:

HB9BUN · Switzerland ×2 R4ZZ · European Russia ×2 DF3JO · Fed. Rep. of Germany DL1CC · Fed. Rep. of Germany DL9KM · Fed. Rep. of Germany DO4AL · Fed. Rep. of Germany G7RHF · England G8OO · England IV3JRY · Italy OM1AN · Slovak Republic R8LCA · Asiatic Russia AD9GE · United States

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 HB1C

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 · 19 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,020 km (approx.)
Last such locator decoded: 2026-08-29 23:14 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	HB1C S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 05:49	40m	- / -	SP1ZMO	-7 / -	5	Partial capture
08-29 23:14	160m	-6 / -14	OK1LO	-20 / -	4	Partial capture
08-29 23:10	160m	- / -	DL1CC	+4 / -	3	Partial capture
08-29 23:10	160m	-15 / -	DF3JO	-10 / -	4	✓ Closing observed
08-29 23:07	160m	-8 / -	DL1CC	- / -	2	Partial capture
08-29 23:06	160m	-2 / -15	R8LCA	-9 / -	4	✓ Closing observed
08-29 23:04	160m	-6 / -	EA1AIQ	- / -	2	Partial capture
08-29 23:02	160m	- / -	DL9KM	-8 / -	4	✓ Closing fragment
08-29 23:02	160m	-7 / -	IV3JRY	-8 / -	3	✓ Closing observed
08-29 23:00	160m	-2 / -	OM1AN	-4 / -	6	✓ Closing observed
08-29 22:57	160m	-4 / +6	HB9BUN	+6 / -	10	✓ Closing observed
08-29 22:57	160m	-2 / -	G8OO	-19 / -	7	✓ Closing observed
08-29 22:56	160m	-6 / -	DL1CC	+6 / -	5	✓ Closing observed
08-29 22:55	160m	-4 / -	DO4AL	- / -	3	✓ Closing fragment
08-29 22:53	160m	-4 / -3	G7RHF	-23 / -	4	✓ Closing observed
08-29 22:47	160m	- / -	OM1AN	-12 / -	3	Partial capture
08-29 22:46	160m	+8 / -	DD1UN	- / -	2	Partial capture
08-29 21:44	40m	+12 / -	YO4NF	- / -	4	✓ Closing fragment
08-29 21:43	40m	+6 / -	US2YW	- / -	2	✓ Closing fragment
08-29 21:40	40m	+6 / -	KP4QVQ	- / -	4	✓ Closing fragment
08-29 21:38	40m	+8 / -	R4ZZ	-6 / -	4	✓ Closing observed
08-29 21:38	40m	+3 / -	EA8DIB	- / -	3	✓ Closing fragment
08-29 21:35	40m	+3 / -	RN6HK	-6 / -	4	✓ Closing observed
08-29 21:34	40m	+6 / -	EA1IOK	-8 / -	3	✓ Closing observed
08-29 21:33	40m	- / -	R3BCK	-2 / -	6	Partial capture
08-29 21:32	40m	+7 / -13	F1PBZ	+2 / -	6	✓ Closing observed
08-29 21:32	40m	+7 / -	PC2J	+1 / -	6	✓ Closing observed
08-29 21:26	40m	+14 / -	KP4QVQ	- / -	2	Partial capture
08-29 21:25	40m	+12 / -15	DF4FW	-11 / -	4	Partial capture
08-29 21:23	40m	- / -	R3BCK	+3 / -	2	Partial capture
08-29 21:23	40m	+14 / -	EA5HM	-3 / -	4	✓ Closing observed
08-29 21:21	40m	-4 / -	KP4QVQ	- / -	2	Partial capture
08-29 20:16	40m	- / -	DD4DE	+6 / -	2	Partial capture
08-29 20:16	40m	- / -	OE9NET	-4 / -	4	Partial capture
08-29 18:15	20m	- / -	MI7JQH	-1 / -	3	Partial capture
08-29 17:01	20m	-18 / -	F5PBG	0 / -	3	✓ Closing observed
08-29 16:59	20m	-16 / -	VE3ARF	- / -	3	✓ Closing fragment
08-29 16:58	20m	-20 / -	AD9GE	- / -	2	✓ Closing fragment
08-29 14:27	20m	- / -	EB3JT	+4 / -	7	Partial capture
08-29 14:24	20m	- / -12	SV1TRJ	-17 / -	6	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
214030  +7 1880  KP4QVQ HB1C R JN46 (x4)
214300  +4 1880  US2YW HB1C R JN46 (x2)
214400 +11 1880  YO4NF HB1C R JN46 (x4)
054945  -8 1873  HB1C SP1ZMO JO73 (x5)

160m

UTC    dB Audio  Message
230645  -4 1272  R8LCA HB1C 73
230715  -8 1272  DL1CC HB1C R JN46 (x2)
230815  -5 1272  PE1LDS HB1C R JN46
231015 -16 1224  DF3JO HB1C R JN46
231030  +2 1303  HB1C DL1CC JO72
231030 -10 1225  HB1C DF3JO RR73
231045 -13 1224  DF3JO HB1C 73
231100  +6 1303  HB1C DL1CC JO72
231115 -15 1224  DF3JO HB1C 73
231130  +4 1303  HB1C DL1CC JO72
231400  -5 1224  OK1LO HB1C JN46 (x2)
231515 -20 1411  HB1C OK1LO -14 (x2)

20m

UTC    dB Audio  Message
143000  +5 1009  HB1C EB3JT JN01
165830 -21 2369  AD9GE HB1C R JN46 (x2)
165930 -16 2370  VE3ARF HB1C JN46 (x3)
170115  +1 2369  HB1C F5PBG IN78
170130 -18 2369  F5PBG HB1C R JN46
170145  -2 2369  HB1C F5PBG RR73
175630 -13 1714  HB1C HB10GBT -12
180430 -11 1128  HB1C EA1AEC IN52
181500  -4  457  HB1C MI7JQH IO74 (x3)
195545  +5  634  HB1C EA3GXK IM98

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