HB9GZS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland Most frequent locator attributed to this token: JN45

Receiver-side FT8 activity involving HB9GZS, decoded by SO8OO in southeastern Poland. 100 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-12.

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 100 FT8 messages attributed to HB9GZS as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (68%), followed by 20 m (18%) and 80 m (9%). Most decodes (74%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

100

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 9 40m · 5 20m · 18 10m · 68

First attributed message: 2026-06-07
Last attributed message: 2026-09-12 04:53 UTC

Observed FT8 message patterns

Attributed sample: 100 messages
Active dates: 8 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 53, strong (≥ -8 dB) 31.

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 HB9GZS in decoded directed-looking exchanges:

II7WWA · Italy ×4 CR2WWA · Azores ×2 EA1AA · Spain G0ANS · England G8KHF · England G8OO · England OZ2BMN · Denmark PD1HPB · Netherlands SP9MOA · Poland SV2CLJ · Greece N9W · United States GB2WWA · 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 HB9GZS

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: JN45 · 61 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,075 km (approx.)
Last such locator decoded: 2026-09-12 04:53 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	HB9GZS S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 03:50	40m	- / -17	R2BDR	-1 / -	2	✓ Closing fragment
07-04 23:38	80m	- / -13	SC9WWA	-8 / -	2	Partial capture
07-04 23:36	80m	-12 / -	II0WWA	+3 / -	2	✓ Closing observed
07-04 23:31	80m	-21 / -	EH2WWA	- / -16	3	✓ Closing fragment
07-04 23:27	80m	-23 / -15	SN4WWA	+2 / -2	5	✓ Full exchange observed
07-04 23:26	80m	- / -3	II7WWA	-4 / -	2	✓ Closing fragment
07-04 22:31	40m	- / -20	GB2WWA	-10 / -	2	✓ Closing fragment
07-04 20:52	20m	-12 / +2	CR2WWA	-15 / +1	5	✓ Full exchange observed
07-04 20:50	20m	-12 / -	CS2WWA	- / -2	2	Partial capture
07-04 20:46	20m	-10 / -	CS2WWA	- / -	2	Partial capture
07-04 20:42	20m	-11 / -	IR0WWA	- / -	5	Partial capture
07-02 12:52	10m	-14 / -	8A1WWA	- / -	3	Partial capture
07-02 12:51	10m	-10 / -	EA4JAU	- / -7	2	Partial capture
07-02 12:44	10m	-17 / -	8A1WWA	- / -	5	Partial capture
07-02 12:02	10m	-19 / -	SN2WWA	- / -17	3	Partial capture
07-02 12:00	10m	-18 / -	II7WWA	- / +8	2	✓ Closing fragment
06-30 03:40	40m	- / -10	II3WWA	-8 / -	2	✓ Closing fragment
06-30 03:27	40m	- / -6	II7WWA	-15 / -	2	✓ Closing fragment
06-30 03:24	40m	- / -	S55A	-20 / -	2	✓ Closing fragment
06-30 03:07	20m	- / -13	N9W	-18 / -	3	✓ Closing fragment
06-29 11:37	10m	+1 / -	CR2WWA	- / -3	2	✓ Closing fragment
06-29 11:36	10m	-6 / -	II5WWA	- / -	2	Partial capture
06-28 21:11	10m	-7 / -	G4HZW	- / -	3	Partial capture
06-28 21:09	10m	-10 / -	EA1AA	- / -	2	✓ Closing fragment
06-28 21:08	10m	-9 / -	G8KHF	- / -	2	✓ Closing fragment
06-28 21:01	10m	-7 / -	IQ4JO	- / -	5	Partial capture
06-28 21:01	10m	-10 / +9	SV2CLJ	-6 / -	6	✓ Full exchange observed
06-28 21:00	10m	-11 / -	OZ2BMN	- / +3	2	✓ Closing fragment
06-28 20:57	10m	-8 / -	G0ANS	- / -	2	✓ Closing fragment
06-28 20:56	10m	-10 / -	IQ4JO	- / -4	2	Partial capture
06-28 20:55	10m	-11 / -	G8OO	- / +3	2	✓ Closing fragment
06-28 20:53	10m	-6 / -	PD1HPB	- / -	2	✓ Closing fragment
06-28 20:52	10m	-7 / -	SP9MOA	- / +6	2	✓ Closing fragment
06-24 14:30	10m	- / -	F1TXI	-23 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
032815 -16 1785  HB9GZS II7WWA RR73
034030 -11  834  HB9GZS II3WWA -10 (x2)
223130  -9  987  HB9GZS GB2WWA -20 (x2)
060930  -5 2645  HB9GZS SN3WWA -07
034445 -20 2204  HB9GZS R2DAY KO95
034615 -12 2203  HB9GZS KD2BRV FN20
035015  -2  660  HB9GZS R2BDR -17 (x2)
045130 -10 2774  J38LD HB9GZS JN45
045200  -6 2774  CQ HB9GZS JN45 (x4)

20m

UTC    dB Audio  Message
204345 -12 2467  IR0WWA HB9GZS JN45 (x2)
204545 -12 2467  TM8WWA HB9GZS R-04
204645  -9 2467  CS2WWA HB9GZS JN45 (x2)
204845 -10 2467  CR2WWA HB9GZS JN45
205045 -11 2467  CS2WWA HB9GZS R-02 (x2)
205215 -11 2467  CR2WWA HB9GZS JN45
205230 -16 1951  HB9GZS CR2WWA +02
205245 -10 2467  CR2WWA HB9GZS R+01 (x2)
205330 -14 1951  HB9GZS CR2WWA RR73
205545 -10 2525  II7WWA HB9GZS 73
062930 -14 2469  TI5RR HB9GZS JN45

80m

UTC    dB Audio  Message
232630  -3 1934  HB9GZS II7WWA RR73
232745 -24 1543  SN4WWA HB9GZS JN45
232800  +3 1543  HB9GZS SN4WWA -15
232815 -22 1543  SN4WWA HB9GZS R-02
232830  +2 1543  HB9GZS SN4WWA RR73
232845 -24 1543  SN4WWA HB9GZS 73
233015 -14 1141  SN0WWA HB9GZS JN45
233115 -20 1485  EH2WWA HB9GZS JN45 (x3)
233445 -14 2385  SN0WWA HB9GZS JN45
233645 -12 2385  II0WWA HB9GZS R+12
233700  +3  572  HB9GZS II0WWA RR73
233830  -9 1868  HB9GZS SC9WWA -13 (x2)

10m

UTC    dB Audio  Message
120115 -16 2219  II7WWA HB9GZS 73
120215 -18 1296  SN2WWA HB9GZS R-17 (x3)
124415 -12 1779  8A1WWA HB9GZS JN45 (x5)
125145 -11 2257  EA4JAU HB9GZS -07 (x2)
125245 -14 1784  8A1WWA HB9GZS JN45 (x4)

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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