HB9IRO — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving HB9IRO, decoded by SO8OO in southeastern Poland. 1,167 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 38 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-15.

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 1,167 FT8 messages attributed to HB9IRO as the transmitting token by decoded message structure across 38 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (70%), followed by 20 m (22%) and 80 m (7%). Most decodes (79%) fell within the six-hour window 03:00-09:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

1,167

Messages attributed

UTC dates decoded

164

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 78 40m · 819 20m · 251 10m · 19

First attributed message: 2026-06-10
Last attributed message: 2026-09-15 09:49 UTC

Observed FT8 message patterns

Attributed sample: 1,167 messages
Active dates: 38 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -18 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 212, moderate (-15 to -9 dB) 391, strong (≥ -8 dB) 564.

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 HB9IRO in decoded directed-looking exchanges:

KE9BPC · United States ×3 CN2DX · Morocco ×2 R1AV · European Russia ×2 HA5LB · Hungary ×2 WA3EHD · United States ×2 DJ4ZC · Fed. Rep. of Germany 3A2MW · Monaco 4L1FL · Georgia 9H5BM · Malta A41ZZ · Oman BG4TRN · China BG5BNW · China

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 HB9IRO

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 · 690 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,020 km (approx.)
Last such locator decoded: 2026-09-15 09:49 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	HB9IRO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 09:49	40m	-20 / -	DA1TE	- / -	2	Partial capture
09-15 09:41	40m	-20 / -	IK1MJK	- / -	2	✓ Closing fragment
09-15 09:32	40m	-13 / +1	SN40KZE	+8 / -	2	Partial capture
09-15 09:28	40m	-17 / +4	PG4T	-18 / -	4	✓ Closing observed
09-15 09:25	40m	-15 / -	HB9SLT	- / +4	3	✓ Closing fragment
09-15 09:23	40m	-19 / -	F4NEM/P	- / +2	3	✓ Closing fragment
09-15 09:19	40m	-22 / -	F4CQS	- / -	2	Partial capture
09-15 09:16	40m	-10 / -	HB9SFL	- / -14	2	✓ Closing fragment
09-15 09:15	40m	-10 / +4	S55OO	-16 / +7	5	Partial capture
09-15 09:14	40m	-24 / -	HB9EDG	-20 / -	3	✓ Closing observed
09-15 05:46	40m	- / -5	EU4U	-10 / -	2	✓ Closing fragment
09-15 05:39	40m	-21 / -	AC8MR	- / -	2	Partial capture
09-15 05:37	40m	-12 / -	W1FP	- / -	2	Partial capture
09-15 05:27	40m	+5 / -	KF0GE	- / -	2	Partial capture
09-15 05:25	40m	+4 / -	WB1PEP	- / -	2	Partial capture
09-15 05:23	40m	-2 / -	AB2RR	- / -21	3	Partial capture
09-15 05:09	40m	-12 / -	N0VYE	- / -17	4	✓ Closing fragment
09-15 05:08	40m	-9 / -	XE1JVO	- / -14	15	Partial capture
09-15 05:04	40m	-8 / -	N2UIF	- / -12	4	✓ Closing fragment
09-15 04:53	40m	-14 / -	KR4DJY	- / -15	2	✓ Closing fragment
09-15 04:24	80m	-10 / -	K1NIC	- / -	2	Partial capture
09-15 04:14	40m	+7 / -13	NP3MR	-23 / -12	6	✓ Full exchange observed
09-12 05:45	40m	-8 / -	K8KWT	- / -	2	Partial capture
09-12 05:33	40m	-6 / -	K4MOR	- / -	4	Partial capture
09-12 05:29	40m	-1 / -	KG4ILP	- / -	3	Partial capture
09-12 05:28	40m	-4 / -	N7JB	- / -	2	Partial capture
09-12 05:25	40m	+1 / -	KC9RXM	- / -	2	Partial capture
09-12 05:23	40m	-8 / -	K3FH	- / -22	2	Partial capture
09-12 05:20	40m	-14 / -	KE9AYZ	- / -	2	Partial capture
09-12 05:13	40m	-10 / -	K4CWW	- / -12	6	Partial capture
09-12 05:10	40m	-4 / -	N7JB	- / -	2	Partial capture
09-12 05:03	40m	+2 / -4	KE4EB	-7 / +8	9	Partial capture
09-12 05:01	40m	-9 / -	K3FH	- / -	3	Partial capture
09-12 04:57	40m	+6 / -	KE4EB	- / -	3	Partial capture
09-12 04:57	40m	-1 / -	WN0KS	- / -	2	Partial capture
09-12 04:53	40m	+1 / -	J38LD	- / -6	5	✓ Closing fragment
09-11 05:55	40m	-4 / -	N4DWD	- / -21	6	✓ Closing fragment
09-11 05:51	40m	-10 / -	KN1B	- / -25	2	✓ Closing fragment
09-11 05:49	40m	-8 / -	W5XO	- / -	2	Partial capture
09-11 05:42	40m	-8 / -	KC9BK	- / -	3	Partial capture
09-11 05:42	40m	- / -	F4BYA	0 / -	2	Partial capture
09-11 05:40	40m	-7 / +10	EA3HMM	-12 / -	4	✓ Full exchange observed
09-11 05:38	40m	-8 / -	KQ4IVE	- / -7	3	✓ Closing fragment
09-11 05:28	40m	-4 / -	WA2HIP	- / -	2	Partial capture
09-11 05:23	40m	-3 / -	K2DBK	- / -	3	Partial capture
09-11 05:21	40m	+1 / -	KX8XX	- / -	2	Partial capture
09-11 05:19	40m	+4 / -	N4HFE	- / -	2	✓ Closing fragment
09-11 05:07	40m	-8 / -	KJ4EX	- / -19	12	Partial capture
09-11 05:03	40m	-4 / -	KJ4EX	- / -	3	Partial capture
09-11 05:00	40m	-8 / -	KA3IRT	- / -14	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
092600 -17 1303  HB9SLT HB9IRO 73
092845 -17 2202  PG4T HB9IRO JN46
092900 -16 2202  HB9IRO PG4T +04 (x2)
092945 -17 2202  PG4T HB9IRO 73
093245 -13 2513  SN40KZE HB9IRO JN46
093300  +8 2513  HB9IRO SN40KZE +01
093630 -11  671  DH3GAR HB9IRO R-08
094000 -13 1020  F4BAL HB9IRO 73
094100 -22 1306  IK1MJK HB9IRO JN46 (x2)
094245 -17 1305  M0GGO HB9IRO JN46 (x2)
094915 -21 1564  DA1TE HB9IRO JN46 (x2)

80m

UTC    dB Audio  Message
045400  -6 1494  HB9IRO DK7ZT RR73
045415 -19 1845  DK7ZT HB9IRO 73
045445 -14 1846  F5LMJ HB9IRO -19 (x2)
053630 -15 1403  HB9IRO POTA/DO9REF -16
205830 +12 1159  HB9IRO HA7TM -13
205845  -5 1158  HA7TM HB9IRO R+07
205900 +10 1159  HB9IRO HA7TM RR73
205915  -5 1158  HA7TM HB9IRO 73
041845 -11  773  AA3B HB9IRO JN46 (x4)
042400 -24  885  K1NIC HB9IRO JN46 (x2)

20m

UTC    dB Audio  Message
071200  -6  859  KZ4MV HB9IRO JN46
071630  -2  497  ZL3TX HB9IRO JN46
210130 -18 2461  HB9IRO BG5BNW PM00 (x2)
210245  -6  509  BG5BNW HB9IRO RR73
211045  -4  508  JI3DLI HB9IRO RR73
211530  +5  466  WA1ZYX HB9IRO JN46 (x2)
211730  +4 2276  K0DTM HB9IRO JN46
065030  +1 2453  HB9IRO YT7TZ -11 (x6)

10m

UTC    dB Audio  Message
073330 -14 1503  LZ2CP HB9IRO JN46
073600 -15 1420  YT7ZS HB9IRO JN46
073945 -13 2599  DN9AD HB9IRO JN46
053700 -12  566  HB9IRO SV2CLJ +06 (x2)
133015  -8 1421  HB9IRO DJ4ZC -04 (x2)
143000 -15  897  OK2URE HB9IRO R+22
143300 -14 2495  HB9EFK HB9IRO JN46
143400 -21 1647  EN100WQ HB9IRO JN46

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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