HB9EMX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland Most frequent locator attributed to this token: JN47

Receiver-side FT8 activity involving HB9EMX, decoded by SO8OO in southeastern Poland. 127 FT8 messages attributed to this token as transmitter, on 60m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-05 and 2026-09-19.

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 127 FT8 messages attributed to HB9EMX as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (67%), followed by 60 m (33%). 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 moderate S/N range (61%); the estimated median was -14 dB.

Overview

127

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

60m · 42 40m · 85

First attributed message: 2026-09-05
Last attributed message: 2026-09-19 17:48 UTC

Observed FT8 message patterns

Attributed sample: 127 messages
Active dates: 4 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -20 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 42, moderate (-15 to -9 dB) 77, strong (≥ -8 dB) 8.

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 HB9EMX in decoded directed-looking exchanges:

IW1FRD · Italy 5Q1X · Denmark 9A3AUH · Croatia DG1YHP · Fed. Rep. of Germany DJ0MDC · Fed. Rep. of Germany GB3RS · England HA3HZ · Hungary M0SCK · England PD2MAC · Netherlands DD6ZV · Fed. Rep. of Germany DH2DAM · Fed. Rep. of Germany DJ1PQ · Fed. Rep. of Germany

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 HB9EMX

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: JN47 · 68 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 975 km (approx.)
Last such locator decoded: 2026-09-19 17:48 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	HB9EMX S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 17:44	60m	-12 / +4	DL2MEL	-14 / -1	5	✓ Full exchange observed
09-19 17:38	60m	-12 / -	G4FHL	- / -	6	Partial capture
09-19 17:35	60m	-12 / -	PE1MHY	-10 / +9	3	✓ Closing observed
09-19 17:31	60m	-19 / +5	DL4YDR	-18 / -	4	✓ Closing observed
09-19 17:30	60m	- / -	SV1DZB	-3 / -	2	Partial capture
09-19 17:30	60m	-16 / -	F4ILW	- / -6	2	✓ Closing fragment
09-19 17:28	60m	- / -	DL5ZG	-11 / -	3	Partial capture
09-19 17:27	60m	-14 / -	DH2DAM	- / -4	2	✓ Closing fragment
09-19 17:27	60m	-14 / -10	HF5A	+14 / +5	6	✓ Full exchange observed
09-19 17:25	60m	-14 / 0	DL2AOM	-18 / -9	4	✓ Full exchange observed
09-19 17:22	60m	-15 / 0	OE5DML	-3 / -	6	✓ Full exchange observed
09-19 17:20	60m	-12 / -11	DD6ZV	0 / +5	5	✓ Full exchange observed
09-19 17:20	60m	-15 / -	DJ1PQ	-14 / -	4	✓ Closing observed
09-19 17:16	60m	-12 / -13	F1PBZ	-18 / -3	6	✓ Full exchange observed
09-19 17:16	60m	-16 / -8	ON7KEI	-18 / +2	5	✓ Full exchange observed
09-19 16:10	40m	- / -	SP6RW	0 / -	3	Partial capture
09-19 16:07	40m	-12 / -	II8IHBC	- / -	2	Partial capture
09-11 14:59	40m	- / -	OE3RAP	0 / -	3	Partial capture
09-11 14:58	40m	-9 / -2	PD2MAC	-14 / -	2	✓ Closing observed
09-11 14:53	40m	-11 / -	PD2MAC	- / -24	7	Partial capture
09-11 14:53	40m	- / -	PD2MV	-20 / -	2	Partial capture
09-11 14:51	40m	- / -	ON4AGV	-19 / -	4	Partial capture
09-11 14:47	40m	-14 / -	DG1YHP	- / -14	3	✓ Closing fragment
09-11 14:45	40m	- / -	DK5DW	-1 / -	7	Partial capture
09-11 14:38	40m	- / -	G0RVY	-6 / -	2	Partial capture
09-11 14:37	40m	- / -	OZ0A	-4 / -	3	Partial capture
09-11 14:26	40m	-18 / -	PD0MNO	-21 / -11	12	Partial capture
09-11 14:24	40m	- / -	PD4HT	-17 / -	2	Partial capture
09-11 14:18	40m	-9 / -1	PD2MAC	-14 / -	4	Partial capture
09-11 14:15	40m	- / -	I4BUQ	-14 / -	5	Partial capture
09-11 14:10	40m	- / -	SQ2JDM	-4 / -	11	Partial capture
09-10 14:25	40m	-15 / -	5Q1X	- / -14	3	✓ Closing fragment
09-10 14:23	40m	-21 / -	PD1BER	- / +6	3	Partial capture
09-10 14:12	40m	- / -	F1IQH	-18 / -	3	Partial capture
09-10 14:09	40m	-19 / 0	9A3AUH	+3 / -	4	✓ Closing observed
09-05 15:56	40m	-8 / -	DJ0MDC	+9 / -9	5	✓ Full exchange observed
09-05 15:53	40m	-12 / -6	HA3HZ	-12 / -8	5	✓ Full exchange observed
09-05 15:50	40m	-10 / -	M0SCK	-24 / -14	3	✓ Closing observed
07-20 16:34	20m	- / -	IW1FRD	-12 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
174015 -13 1185  G4FHL HB9EMX JN47 (x2)
174145 -11 1270  CQ HB9EMX JN47 (x3)
174345 -12 1270  G1UAF HB9EMX RR73
174430 -16 1271  HB9EMX DL2MEL JN58
174445 -14 1270  DL2MEL HB9EMX -01
174500 -13 1271  HB9EMX DL2MEL R+04
174515 -11 1271  DL2MEL HB9EMX RR73
174530 -13 1271  HB9EMX DL2MEL 73
174645 -12 1271  CQ HB9EMX JN47 (x2)
174815 -13 1271  IT9ELT HB9EMX JN47
175030  -1 1270  HB9EMX IT9ELT -08

40m

UTC    dB Audio  Message
145915 -19 1919  HB9EMX ON4AGV JO11
145915  +3 1028  HB9EMX OE3RAP JN88
145930 -14 1921  CQ HB9EMX JN47
145945  -2 1028  HB9EMX OE3RAP JN88
150000  -9 1921  PD2MAC HB9EMX RR73
150015  -1 1028  HB9EMX OE3RAP JN88
150145 -24 1921  HB9EMX IU3OVM JN65
160745 -12 1686  II8IHBC HB9EMX JN47 (x2)
160945 -11 1685  CQ HB9EMX JN47
161000  +1 1685  HB9EMX SP6RW JO81
161015 -14 1685  CQ HB9EMX JN47
161030  +1 1685  HB9EMX SP6RW JO81 (x2)
161115  -9 1685  CQ HB9EMX JN47

20m

UTC    dB Audio  Message
163430 -11 2617  HB9EMX IW1FRD JN35 (x2)
171130  -2  857  HB9EMX M8KKH JO01

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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