HB9EKJ — 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: JN47

Receiver-side FT8 activity involving HB9EKJ, decoded by SO8OO in southeastern Poland. 8,122 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 145 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-06.

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 8,122 FT8 messages attributed to HB9EKJ as the transmitting token by decoded message structure across 145 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (56%), followed by 20 m (30%) and 40 m (7%). Most decodes (55%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

8,122
Messages attributed
145
UTC dates decoded
1,379
Active 15-min windows
-13 dB
Estimated median S/N

Bands

80m · 4,582 60m · 549 40m · 570 20m · 2,411 10m · 10
First attributed message: 2026-06-06
Last attributed message: 2026-11-06 09:06 UTC

Observed FT8 message patterns

Attributed sample
8,122 messages
Active dates
145 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-21.8 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2,650, moderate (-15 to -9 dB) 3,882, strong (≥ -8 dB) 1,590.

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 HB9EKJ in decoded directed-looking exchanges:

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 HB9EKJ

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 · 6,221 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
975 km (approx.)
Last such locator decoded
2026-11-06 09:06 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 UTCBandHB9EKJ S/NCounterpartCounterpart S/NMsgsCapture
11-06 08:51 40m -21 / - PD1PBL - / -3 5 ✓ Closing fragment
11-06 08:36 40m -20 / 0 HA3HZ 0 / -9 4 ✓ Full exchange observed
11-06 07:08 40m -23 / -9 OK1FAN -6 / -10 4 ✓ Full exchange observed
11-06 05:45 40m - / - YO9IBC -2 / - 2 Partial capture
11-05 23:09 40m - / -8 DG3YEV -3 / - 2 ✓ Closing fragment
11-05 22:05 40m - / -6 RJ3DC -6 / - 3 ✓ Closing fragment
11-05 21:46 40m - / - IN3ZWF -4 / - 7 Partial capture
11-05 19:48 40m - / -7 IU4DTV -10 / - 2 ✓ Closing fragment
11-05 07:16 40m - / - 9A60CBM -22 / - 2 Partial capture
11-05 07:16 40m - / - IN3ZWF +2 / - 2 Partial capture
11-05 06:09 40m - / -7 IU7IPX -21 / - 3 ✓ Closing fragment
11-04 07:08 40m -22 / - PD9JPV - / - 2 ✓ Closing fragment
11-04 06:50 40m -20 / - PD5WA - / -16 2 ✓ Closing fragment
11-04 06:46 40m -21 / -14 HB9ELE +8 / -4 3 ✓ Full exchange observed
11-04 06:35 40m - / - LZ1ZF -3 / - 2 Partial capture
11-04 06:28 40m - / - HB9ELE +5 / - 2 Partial capture
11-04 06:28 40m -24 / +3 OK2CNI -5 / - 3 ✓ Closing observed
11-04 06:26 40m - / - SQ4PKO -8 / - 2 Partial capture
11-04 06:23 40m -19 / - OE6OCG -7 / - 2 ✓ Closing observed
11-04 05:59 40m - / - HA5CPN -8 / - 2 Partial capture
11-03 21:28 40m - / -12 CT7BRV -6 / - 2 ✓ Closing fragment
11-03 21:15 40m - / -19 F4LAX -16 / - 3 Partial capture
11-03 19:02 40m -14 / - SP7ROM - / - 2 ✓ Closing fragment
11-03 18:57 40m -18 / - SP6CRZ - / - 3 ✓ Closing fragment
11-03 06:11 40m - / -11 YL3BF -7 / - 2 Partial capture
11-03 05:42 40m - / -19 YU1JF -10 / - 2 Partial capture
11-02 19:33 40m - / - M8KUG -4 / - 2 Partial capture
11-02 19:27 40m - / - M8KUG -5 / - 5 Partial capture
11-02 08:05 40m -20 / -14 DL3BF -10 / - 4 ✓ Closing observed
11-02 07:30 40m -21 / -18 ON2RX -11 / - 3 ✓ Closing observed
11-02 07:01 40m -20 / - DK8MT - / - 2 ✓ Closing fragment
11-02 06:43 40m -22 / -7 YO2CR 0 / -8 7 ✓ Full exchange observed
11-02 06:33 40m - / - RJ3DC -8 / - 2 Partial capture
11-02 05:48 40m - / -14 PI4RS -4 / - 4 ✓ Closing fragment
11-01 19:24 40m - / -8 9A6GUO -9 / - 3 ✓ Closing fragment
11-01 18:39 40m - / -13 SV9GPV -5 / - 3 ✓ Closing fragment
11-01 18:36 40m - / +2 EA1ESW -13 / - 2 ✓ Closing fragment
11-01 18:28 40m -11 / - LY3PW - / -3 3 ✓ Closing fragment
11-01 18:21 40m -14 / - SP7VPR - / -4 2 ✓ Closing fragment
11-01 18:17 40m -10 / - OH6TOV - / -11 2 ✓ Closing fragment
11-01 18:08 40m -10 / -3 Z34K -17 / -4 5 ✓ Full exchange observed
11-01 17:59 40m -11 / - 4X6HP - / - 6 Partial capture
11-01 17:57 40m -9 / - 2J4O2 - / - 3 Partial capture
11-01 17:51 40m -15 / - SP4KDK - / -4 6 Partial capture
11-01 17:50 40m -12 / - DD4DE - / +3 2 ✓ Closing fragment
11-01 17:46 40m -16 / - R2FBW - / -10 2 ✓ Closing fragment
11-01 07:45 40m - / -15 OK1PKM -16 / - 3 ✓ Closing fragment
11-01 07:40 40m - / - G0CUT -22 / - 2 ✓ Closing fragment
11-01 07:36 40m - / +3 GJ0KYZ -16 / - 2 ✓ Closing fragment
10-30 09:46 40m - / -9 HA8GG -16 / - 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
083545 -20 1409  CQ HB9EKJ JN47                        a1
083630  +1  366  HB9EKJ HA3HZ JN96
083645 -20 1409  HA3HZ HB9EKJ -09
083700  -2  366  HB9EKJ HA3HZ R+00 (x2)
083815 -23 1409  CQ HB9EKJ JN47                        a1 (x4)
085145 -20 1409  PD1PBL HB9EKJ -03 (x5)
090645 -24 1409  CQ HB9EKJ JN47                        a1
60m 
UTC    dB Audio  Message
071630 -17 1405  DH3GAR HB9EKJ JN47 (x4)
80m 
UTC    dB Audio  Message
062730 -21 1375  CQ HB9EKJ JN47
062800  -2  882  HB9EKJ DJ3HW R+03 (x9)
064115 -19 1374  HB9EKJ OE8CSQ JN76 (x3)
064645 -19 1379  HB9EKJ DF1QR -10 (x2)
160m 
UTC    dB Audio  Message
191100 -10 1372  HB9EKJ DK7ZT -05 (x5)
20m 
UTC    dB Audio  Message
085600  -7 1562  HB9EKJ M8FQT IO93
085630 +11 1563  CQ HB9EKJ JN47 (x14)
10m 
UTC    dB Audio  Message
111430 -14 1109  HB9EKJ DJ2MS R-05
112830  -9  695  HB9EKJ DO1BOC JO44 (x3)
151800 -13 1569  HB9EKJ GJ0KYZ -03 (x2)
171330  -9 1570  HB9EKJ IZ7BAS R-18 (x2)
194630 -22 1569  HB9EKJ PD0RCQ JO21
195330 -10  922  HB9EKJ DK0RA/LH -04
195500 -15 1525  HB9EKJ PA1GLD JO21 (x2)
195800 -15 1570  HB9EKJ PD2V -10
201030 -12 1993  HB9EKJ DN9ISK JO43 (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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