E74DKB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Bosnia-Herzegovina Most frequent locator attributed to this token: JN94

Receiver-side FT8 activity involving E74DKB, decoded by SO8OO in southeastern Poland. 132 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-07-01 and 2026-09-14.

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 132 FT8 messages attributed to E74DKB as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (81%), followed by 80 m (11%) and 20 m (8%). Most decodes (100%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

132
Messages attributed
12
UTC dates decoded
26
Active 15-min windows
-13 dB
Estimated median S/N

Bands

80m · 15 40m · 107 20m · 10
First attributed message: 2026-07-01
Last attributed message: 2026-09-14 19:04 UTC

Observed FT8 message patterns

Attributed sample
132 messages
Active dates
12 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-21 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 42, moderate (-15 to -9 dB) 40, strong (≥ -8 dB) 50.

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 E74DKB 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 E74DKB

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
JN94 · 72 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
640 km (approx.)
Last such locator decoded
2026-09-14 19:02 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 UTCBandE74DKB S/NCounterpartCounterpart S/NMsgsCapture
09-14 19:05 40m - / - IV3VFP -2 / - 2 Partial capture
09-14 19:02 40m -10 / -15 DJ9WJ +2 / -10 6 ✓ Full exchange observed
09-14 18:58 40m - / - E70SZ -1 / - 2 Partial capture
09-14 18:58 40m - / -9 PD1HK -4 / - 5 ✓ Closing fragment
09-14 18:58 40m -10 / - RA6OY +1 / -23 5 Partial capture
09-14 18:50 40m - / - US2YW -4 / - 2 Partial capture
09-14 18:48 40m - / -12 TA2/TF1OL -1 / - 5 ✓ Closing fragment
09-14 18:47 40m -11 / 0 DK6WS -6 / -14 5 ✓ Full exchange observed
09-14 18:45 40m -7 / -13 MI0OBC +1 / -15 12 ✓ Full exchange observed
09-14 18:41 40m -4 / -14 9A4AA -5 / -12 3 Partial capture
09-14 18:25 40m -12 / - 9A4AA - / - 2 Partial capture
09-14 18:23 40m -8 / - R5DT +8 / -9 3 ✓ Closing observed
09-13 17:34 40m -6 / -12 RU3QR -4 / -13 5 ✓ Full exchange observed
08-26 20:19 20m - / +7 IK2ZJR +4 / - 3 ✓ Closing fragment
08-24 20:23 80m - / - HA7TM +11 / - 3 Partial capture
08-24 20:23 80m - / - SP9UPH +11 / - 3 Partial capture
08-23 21:38 20m -5 / - BU2FW - / - 2 Partial capture
08-23 21:27 20m - / - JR3NZC -8 / - 2 Partial capture
08-23 21:27 20m - / 0 YO4NF -5 / - 2 Partial capture
08-23 21:27 20m -2 / - BH4ECL - / -19 2 ✓ Closing fragment
08-20 22:18 40m +6 / - 5A1AL - / - 7 Partial capture
08-20 22:10 80m - / - F5MYK -11 / - 2 Partial capture
08-20 22:07 80m +7 / +1 9A9N +5 / -3 8 ✓ Full exchange observed
08-20 20:24 40m -2 / - JA4GCL -21 / -16 4 ✓ Closing observed
08-20 20:22 40m -1 / - JH4IFF -12 / -14 5 ✓ Closing observed
08-20 20:22 40m -1 / +2 DB3MAX -2 / -16 3 Partial capture
08-20 20:19 40m +4 / - OK2VCR +2 / -8 6 ✓ Full exchange observed
08-20 20:19 40m - / - CT2GQA -8 / - 3 Partial capture
07-22 19:59 40m - / - DL3JHK -20 / - 2 Partial capture
07-18 18:47 20m - / - R2AL +5 / - 3 Partial capture
07-18 18:46 40m -15 / -10 ON8BZ -17 / - 2 Partial capture
07-15 19:18 20m - / - EA1CQ -14 / - 2 Partial capture
07-14 14:27 20m - / - DL1R -6 / - 7 Partial capture
07-13 22:25 80m -13 / - DG3EAJ - / - 3 Partial capture
07-13 22:22 80m -13 / -10 LB9ZG +2 / -13 6 ✓ Full exchange observed
07-13 22:17 80m -12 / -10 HB9EFK +14 / - 3 ✓ Closing observed
07-13 22:14 40m - / -15 F5HNQ -7 / - 2 ✓ Closing fragment
07-13 22:11 40m -16 / - SP9MOA - / -9 4 Partial capture
07-13 22:07 40m -18 / - EC1AOX - / -17 2 ✓ Closing fragment
07-13 22:06 40m -19 / - F1IQH -23 / -12 4 Partial capture
07-09 22:28 40m - / - F1IQH -20 / - 2 Partial capture
07-09 22:23 40m -15 / - VP2MAA - / -15 6 ✓ Closing fragment
07-08 20:53 40m - / - S51CC -12 / - 3 Partial capture
07-08 20:52 40m - / -2 IZ4EKI -13 / - 2 Partial capture
07-08 20:51 40m - / - ON7DE -13 / - 6 Partial capture
07-08 20:51 40m -17 / +6 DH0GBC -8 / - 3 ✓ Closing observed
07-08 20:43 40m -22 / - UW5KW - / -14 2 ✓ Closing fragment
07-08 20:40 40m -20 / - R4FEO -17 / -13 5 Partial capture
07-08 20:32 40m -21 / - EA5KB - / - 3 Partial capture
07-08 20:12 40m -18 / -16 LZ3HG -13 / -19 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
185845  -1 1302  E74DKB E70SZ JN84
185915  +3 1101  E74DKB RA6OY KN88
185915  +1  809  E74DKB PD1HK R-09 (x3)
190100 -11 1300  RA6OY E74DKB -23 (x2)
190230  -7 1299  DJ9WJ E74DKB JN94
190245  +1 1083  E74DKB DJ9WJ -15
190300 -15 1298  DJ9WJ E74DKB R-10
190315  +2 1083  E74DKB DJ9WJ RR73
190330 -11 1298  DJ9WJ E74DKB 73 (x2)
190515  -6 1536  E74DKB IV3VFP JN66 (x2)
20m 
UTC    dB Audio  Message
184930 -16 1303  A41ZZ E74DKB JN94
212700  -1 2352  BH4ECL E74DKB -19 (x2)
212745  -6 2352  E74DKB YO4NF +00
212745  -8  835  E74DKB JR3NZC PM74
212815  -4 2352  E74DKB YO4NF +00
212815  -8  835  E74DKB JR3NZC PM74
213800  -5 2353  BU2FW E74DKB JN94 (x2)
214115  -7 2356  E74K E74DKB JN94
202145  +0 2362  CQ E74DKB JN94 (x2)
201930  +8 2358  E74DKB IK2ZJR JN45 (x3)
80m 
UTC    dB Audio  Message
220845  +3  544  E74DKB 9A9N RR73
220930  +6 2308  9A9N E74DKB R-03
220945  +9  544  E74DKB 9A9N RR73
221000  +4 2308  9A9N E74DKB 73
221015 -13 2560  E74DKB F5MYK IN97 (x2)
202315  +9 2314  CQ E74DKB JN94
202330  +8 2038  E74DKB SP9UPH JO90
202330 -13 2161  E74DKB IQ4JO JN63
202330 +12 2314  E74DKB HA7TM JN97
202400 +11 2038  E74DKB SP9UPH JO90
202400 +10 2314  E74DKB HA7TM JN97
202400 -24 1493  E74DKB DO2DH JO54
202430 +14 2038  E74DKB SP9UPH JO90
202430 +10 2314  E74DKB HA7TM JN97

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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