HB9GXK — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

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

Receiver-side FT8 activity involving HB9GXK, decoded by SO8OO in southeastern Poland. 42 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-28 and 2026-10-22.

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 42 FT8 messages attributed to HB9GXK 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 (60%), followed by 40 m (29%) and 20 m (7%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -4 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

80m · 25 40m · 12 20m · 3 10m · 2

First attributed message: 2026-06-28
Last attributed message: 2026-10-22 23:02 UTC

Observed FT8 message patterns

Attributed sample: 42 messages
Active dates: 7 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -15 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 30.

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 HB9GXK in decoded directed-looking exchanges:

TN8GD · Republic of the Congo F6FHZ · France LA1HW · Norway TJ1GD/P · Cameroon 4L7T · Georgia 9A4ZM · Croatia DK8HC · Fed. Rep. of Germany EA3FR · Spain EB3JT · Spain LB9ZG · Norway RC6OU · European Russia TA4SSK · Asiatic Turkey

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 HB9GXK

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 · 15 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,158 km (approx.)
Last such locator decoded: 2026-10-22 22:56 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	HB9GXK S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 23:54	40m	- / -	F5PBG	-2 / -	2	Partial capture
10-22 23:54	40m	- / 0	RV6HE	-12 / -	2	Partial capture
10-22 23:02	80m	- / -	DO9BAU	+4 / -	13	Partial capture
10-22 23:00	80m	+2 / -6	UT5MB	+1 / -2	5	✓ Full exchange observed
10-22 22:59	80m	+4 / -	DK8HC	- / -5	2	✓ Closing fragment
10-22 22:58	80m	+1 / -13	9A4ZM	+9 / -	4	✓ Closing observed
10-22 22:57	80m	0 / -	TA4SSK	- / -11	3	✓ Closing fragment
10-22 22:55	80m	-2 / -	SM7TZK	- / -	2	Partial capture
10-22 22:52	80m	- / -	DO9BAU	+5 / -	13	Partial capture
10-22 22:52	80m	-1 / -9	EA3FR	-22 / -	3	✓ Closing observed
10-22 22:51	80m	- / -	PE1NPS	+2 / -	3	Partial capture
10-22 22:50	80m	+2 / -13	RC6OU	+4 / 0	11	✓ Full exchange observed
10-22 22:50	80m	+8 / -	EB3JT	-6 / +3	3	✓ Closing observed
10-22 22:50	80m	+6 / -6	YO4NF	+10 / -	4	✓ Full exchange observed
10-22 22:49	80m	+9 / -	4L7T	- / -13	3	✓ Closing fragment
09-16 21:22	40m	-9 / -	LA1HW	- / -24	4	✓ Closing fragment
08-17 21:13	40m	-11 / -	BA4II	- / -	3	Partial capture
08-17 21:11	80m	- / -	9A4ZM	+10 / -	3	Partial capture
08-17 21:08	80m	-7 / -	CT3MD	- / -11	2	Partial capture
08-11 20:58	80m	-5 / +3	LB9ZG	0 / -7	5	✓ Full exchange observed
08-11 20:57	160m	- / -	OM2WQ	+7 / -	3	Partial capture
08-06 22:32	40m	-8 / -	TJ1GD/P	- / -6	3	✓ Closing fragment
08-06 22:02	20m	- / -11	TN8GD	-8 / -	2	✓ Closing fragment
08-04 22:29	20m	- / -11	HI8UD	-14 / -	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
223245  -8  513  TJ1GD/P HB9GXK JN36 (x3)
223545  -9  514  F6FHZ HB9GXK RR73
211315 -10 1185  BA4II HB9GXK JN36 (x3)
212215  -6 1185  LA1HW HB9GXK JN36 (x4)
235400 -13 2144  HB9GXK RV6HE +00
235400  -3 1185  HB9GXK F5PBG IN78 (x2)
235500 -12 2144  HB9GXK RV6HE -03

80m

UTC    dB Audio  Message
230200  +0 1153  HB9GXK UT5MB RR73
230215  +3 1152  UT5MB HB9GXK 73
230230  +4 2202  HB9GXK DO9BAU JO62 (x13)

160m

UTC    dB Audio  Message
215530  -3 1752  HB9GXK OM2WQ JN88 (x4)

20m

UTC    dB Audio  Message
221445 -18 1088  W4HTP HB9GXK JN36
222045 -18 1089  HI8UD HB9GXK JN36
222130 -16 1088  NP3RK HB9GXK JN36
222900 -14  904  HB9GXK HI8UD -11 (x2)
220200 -10  919  HB9GXK TN8GD -11 (x2)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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