HB9IIH — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving HB9IIH, decoded by SO8OO in southeastern Poland. 250 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-10-02.

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 250 FT8 messages attributed to HB9IIH as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 20 m (31%) and 80 m (14%). Most decodes (70%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (77%); the estimated median was 0 dB.

Overview

250
Messages attributed
10
UTC dates decoded
32
Active 15-min windows
0 dB
Estimated median S/N

Bands

First attributed message: 2026-06-16
Last attributed message: 2026-10-02 21:18 UTC

Observed FT8 message patterns

Attributed sample
250 messages
Active dates
10 UTC dates
Estimated median S/N
0 dB
Estimated 10th-90th percentile
-14 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 192.

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.

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 HB9IIH

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 · 122 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,158 km (approx.)
Last such locator decoded
2026-10-02 21:18 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 UTCBandHB9IIH S/NCounterpartCounterpart S/NMsgsCapture
10-02 21:11 40m +6 / - VJ6X - / - 13 Partial capture
10-02 21:00 40m +3 / - VJ6X - / - 7 Partial capture
10-02 20:57 40m +7 / -12 RW3DDZ -17 / -4 5 ✓ Full exchange observed
10-02 20:55 40m +7 / - SP5MIG - / +7 2 ✓ Closing fragment
10-02 20:51 40m +4 / - SQ8AA - / -2 7 ✓ Closing fragment
10-02 20:46 40m +3 / - VJ6X - / - 6 Partial capture
10-02 20:37 40m +2 / - EA4DZR - / -9 2 ✓ Closing fragment
10-02 20:35 40m +2 / - CT3HU -14 / -8 4 ✓ Closing observed
10-02 20:30 40m +4 / -19 RW5CW -14 / -12 8 ✓ Full exchange observed
10-02 20:21 40m +5 / - YO3FWL - / -14 3 ✓ Closing fragment
10-02 20:18 40m +6 / - UR5DU - / 0 2 ✓ Closing fragment
10-02 20:15 40m -4 / - M9IOU - / -4 2 ✓ Closing fragment
10-02 20:15 40m +5 / -19 LZ2BC -17 / -14 26 ✓ Full exchange observed
10-02 20:13 40m +2 / - MM6EJO - / -17 2 ✓ Closing fragment
09-21 19:26 40m - / -10 ON1DGN -4 / - 2 ✓ Closing fragment
09-20 23:01 80m - / - DL6FCK +2 / - 2 Partial capture
09-20 22:56 80m +5 / - C31KC - / - 3 Partial capture
09-20 22:54 80m +9 / +8 DL6FCK +5 / - 10 ✓ Closing observed
09-20 22:54 80m +2 / +9 ON4MAP -10 / 0 6 ✓ Full exchange observed
09-20 22:53 80m -6 / 0 DO5PY -7 / -7 4 Partial capture
09-20 22:51 80m +4 / - EA5HM -8 / -5 5 ✓ Closing observed
09-20 22:50 80m +1 / - HB10GBT -1 / - 3 Partial capture
09-20 22:43 40m - / -4 RZ4FWA -9 / - 3 ✓ Closing fragment
09-14 19:16 40m +4 / -23 F4IFO 0 / +5 8 ✓ Full exchange observed
09-14 19:13 40m - / -1 F6BHK -4 / - 2 ✓ Closing fragment
09-14 19:11 40m - / 0 DJ0MAB -3 / - 3 ✓ Closing fragment
09-14 19:09 40m -4 / - OD5ZZ - / - 4 Partial capture
09-11 23:31 80m - / - YT2FA -9 / - 12 Partial capture
09-11 23:24 80m +2 / -11 PA0RF -14 / - 6 ✓ Closing observed
09-11 23:24 80m -9 / +1 SP3BZU -2 / +6 11 Partial capture
09-11 23:22 80m 0 / +7 Z62NS +6 / +8 5 ✓ Full exchange observed
09-11 23:21 80m -8 / -9 9A2TN -4 / -7 4 ✓ Full exchange observed
09-11 23:21 80m -4 / -15 R5AV -4 / 0 3 ✓ Full exchange observed
09-11 23:14 40m -15 / - KC2NJ - / -8 3 ✓ Closing fragment
09-11 22:22 40m +4 / - CT2HEX - / -6 2 ✓ Closing fragment
09-11 22:21 40m +6 / - TA3NK - / -9 2 ✓ Closing fragment
08-30 17:35 20m - / +5 PE9JAN +2 / - 3 ✓ Closing fragment
08-30 17:31 20m - / +5 Z31PM -12 / - 2 ✓ Closing fragment
08-30 17:30 20m - / -14 UA4FEN +14 / - 2 ✓ Closing fragment
08-30 17:23 20m -12 / - IQ4JO - / -6 2 ✓ Closing fragment
08-30 16:19 20m -10 / - YO3NSS - / -12 2 ✓ Closing fragment
08-30 16:17 20m - / - IT9FEG +14 / - 3 Partial capture
08-30 16:16 20m -8 / - SQ5PTZ - / -25 3 ✓ Closing fragment
08-30 16:15 20m - / -16 TA4WH -8 / - 2 Partial capture
08-30 16:08 20m - / -18 RY7G +9 / - 3 ✓ Closing fragment
08-30 16:02 20m - / -17 G3RTU -11 / - 3 ✓ Closing fragment
08-30 15:52 20m -10 / - R7OV - / -22 2 Partial capture
08-30 15:52 20m -10 / - G7EVY 0 / -15 6 ✓ Closing observed
08-30 15:49 20m -12 / - KF9UG - / -17 2 ✓ Closing fragment
08-30 11:38 20m -1 / +1 CU3HN -17 / - 7 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
210245  -6 2439  VJ6X HB9IIH JN36 (x15)
80m
UTC    dB Audio  Message
225530  +3 1292  ON4MAP HB9IIH RR73
225545  -5 1292  HB9IIH ON4MAP 73
225545  +6  395  HB9IIH DL6FCK R+08 (x2)
225630  +6 1472  C31KC HB9IIH JN36
225645 +10  395  HB9IIH DL6FCK R+08 (x2)
225730  +6 1473  C31KC HB9IIH JN36
225745  +9  395  HB9IIH DL6FCK R+08
225800  +4 1473  C31KC HB9IIH JN36
225815  +8  395  HB9IIH DL6FCK R+08
225900  +9  395  DL6FCK HB9IIH RR73
225930 +12  395  CQ HB9IIH JN36
230115  +3  395  HB9IIH DL6FCK JO40 (x2)
20m
UTC    dB Audio  Message
161945 -11 1976  YO3NSS HB9IIH -12 (x2)
172245 -11 2444  CQ HB9IIH JN36                        a1 (x2)
172345 -13 2443  IQ4JO HB9IIH -06 (x2)
173000 +13 2324  HB9IIH UA4FEN -14 (x2)
173145 -14 2713  HB9IIH Z31PM +05 (x2)
173545  -6 1697  HB9IIH PE9JAN JO22 (x3)
174815 +14 2320  HB9IIH M7NFV JO02
180630  -1 1716  OE3YMM HB9IIH RR73

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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