HB9DTC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland Locator transmitted in a decoded message: JN36

Receiver-side FT8 activity involving HB9DTC, decoded by SO8OO in southeastern Poland. 146 related FT8 messages, 75 CQ messages, observed on 40m, 20m, 10m, across 9 UTC dates. Heard between 2026-06-24 and 2026-07-09.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee

Overview

146
Related messages
75
CQ messages
9
UTC dates heard
-11 dB
Mean decoder S/N

Bands

First seen: 2026-06-24
Last seen: 2026-07-09 05:48 UTC

Activity Heatmap

Locator transmitted by HB9DTC

Approximate centre of JN36, decoded 2026-07-09 07:59 UTC. A transmitted locator is not proof of the operator's permanent location.

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 UTCBandHB9DTC S/NCounterpartCounterpart S/NMsgsCapture
07-09 07:55 20m -9 / - KF0YOB - / - 7 Partial capture
07-09 07:53 20m -14 / - EA8DQE - / - 2 Partial capture
07-09 07:51 20m -11 / - KF0YOB - / - 4 Partial capture
07-09 07:49 20m -16 / - M7KSV - / -6 2 ✓ Closing fragment
07-09 07:41 20m -14 / - G6MTI - / +1 2 Partial capture
07-09 07:35 20m -18 / - OH1LA - / -25 2 ✓ Closing fragment
07-09 07:32 20m -18 / - RZ4FWA -19 / -23 5 ✓ Closing observed
07-09 07:28 20m -19 / - RA6HN - / -12 2 ✓ Closing fragment
07-08 20:57 40m -16 / - TJ1GD/P - / - 3 Partial capture
07-08 20:52 40m -16 / - TJ1GD/P - / - 3 Partial capture
07-08 17:55 20m -11 / - JH3KCW - / - 4 Partial capture
07-08 17:54 20m -8 / - R1BGR - / -4 2 ✓ Closing fragment
07-08 17:48 20m -14 / - R6ODC - / -11 2 Partial capture
07-08 17:46 20m -18 / - R2AFI - / -2 2 ✓ Closing fragment
07-08 11:00 20m -19 / - WK2M - / - 2 Partial capture
07-08 10:53 20m -16 / - PD0RAA - / -11 3 ✓ Closing fragment
07-08 10:50 20m -18 / - F1PSX - / -17 3 ✓ Closing fragment
07-08 10:48 20m -20 / - TF5B - / - 2 Partial capture
07-08 10:11 20m -20 / - DH1ADW - / -1 2 ✓ Closing fragment
07-08 10:06 20m -17 / - UA9LAO - / - 4 Partial capture
07-08 10:05 20m -16 / - G0LUH - / +3 2 ✓ Closing fragment
07-07 18:27 20m -14 / - SO5WD - / -9 2 Partial capture
07-07 18:21 20m -7 / - TN8GD -15 / - 8 ✓ Closing observed
07-07 18:13 20m -18 / +7 M7HET -21 / +10 4 Partial capture
07-07 18:10 20m -16 / - JA4ONP - / -6 5 ✓ Closing fragment
07-07 18:03 20m -15 / -5 R5AV -14 / - 3 ✓ Closing observed
07-07 18:02 20m -16 / - N6TA - / -5 2 ✓ Closing fragment
07-07 17:53 20m -20 / -8 EW7DDR -9 / +7 5 ✓ Full exchange observed
06-29 14:03 20m - / - RZ4FWA -18 / - 3 Partial capture
06-29 14:03 20m - / -18 F4LNM -19 / - 2 Partial capture
06-29 14:01 20m - / -15 OK1FRA +2 / - 4 ✓ Closing fragment
06-29 13:49 20m -22 / -2 KF0YOB -13 / +1 2 Partial capture
06-29 09:56 20m -14 / - KF0YOB - / - 2 Partial capture
06-29 09:54 20m -14 / -18 HB9SFL -9 / -17 6 ✓ Full exchange observed
06-28 17:48 20m -10 / - BH2WTV - / -8 4 Partial capture
06-28 13:57 10m - / -13 YO4NF -8 / - 2 Partial capture
06-27 18:58 20m -17 / - JA1FWS - / -12 2 Partial capture
06-27 18:55 20m -13 / - PD1HPB - / -3 2 ✓ Closing fragment
06-27 18:47 20m -10 / - TN8GD - / -16 4 Partial capture
06-27 18:39 20m -5 / - TN8GD - / - 3 Partial capture
06-27 18:31 20m -1 / - DL7DO +1 / - 2 ✓ Closing observed
06-27 18:28 20m -10 / - TN8GD - / - 3 Partial capture
06-27 18:22 20m -11 / - TN8GD - / - 3 Partial capture
06-27 15:44 20m - / +2 DL7JAF -15 / - 4 ✓ Closing fragment
06-27 15:27 20m -19 / - TA4NYD - / -8 3 ✓ Closing fragment
06-27 14:58 20m -23 / - DL2YED - / -6 2 Partial capture
06-26 20:42 20m - / - PA8S -4 / - 9 Partial capture
06-26 17:46 20m -16 / - BA7SAY - / - 2 Partial capture
06-26 17:41 20m -14 / - TN8GD - / - 7 Partial capture
06-26 17:35 20m -16 / - VK8NAH - / -15 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
074915 -18 2223  M7KSV HB9DTC -06 (x2)
075115 -14 2222  KF0YOB HB9DTC JN36 (x4)
075315 -17 2222  EA8DQE HB9DTC JN36 (x2)
075545 -14 2222  KF0YOB HB9DTC JN36 (x7)
40m
UTC    dB Audio  Message
223245 -16 1317  A99AA HB9DTC JN36
060315  -8 2733  HB9DTC IQ4JO JN63
060545  -8 1317  HB9DTC UT4PA KO20 (x5)
060915 -14 2578  HB9DTC YO3GNF KN34
205245 -17 2190  TJ1GD/P HB9DTC JN36 (x6)
210345 -17 2189  <...> HB9DTC JN36
10m
UTC    dB Audio  Message
100900  +0 2714  EB5R HB9DTC -17 (x2)
101100  +2 2714  CQ HB9DTC JN36 (x2)
101145  -4 3021  HB9DTC E75FM JN93
101200  +2 2713  E75FM HB9DTC -05 (x2)
101245  -2 3021  HB9DTC E75FM R-17
101300  +9 2714  E75FM HB9DTC RR73
101315  -1 3021  HB9DTC E75FM R-17
101330  +5 2714  E75FM HB9DTC RR73
101345  +4 3021  HB9DTC E75FM 73
101430  +4 2714  E75FM HB9DTC JN36
135730  -9 1332  HB9DTC YO4NF -13 (x2)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.