YE4FNN — 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: Indonesia Most frequent locator attributed to this token: OI37

Receiver-side FT8 activity involving YE4FNN, decoded by SO8OO in southeastern Poland. 1,455 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 89 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-04.

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 1,455 FT8 messages attributed to YE4FNN as the transmitting token by decoded message structure across 89 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (48%), followed by 20 m (25%) and 80 m (24%). Most decodes (59%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12.9 dB.

Overview

1,455
Messages attributed
89
UTC dates decoded
265
Active 15-min windows
-12.9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-11-04 21:16 UTC

Observed FT8 message patterns

Attributed sample
1,455 messages
Active dates
89 UTC dates
Estimated median S/N
-12.9 dB
Estimated 10th-90th percentile
-19 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 404, moderate (-15 to -9 dB) 778, strong (≥ -8 dB) 273.

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 YE4FNN

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
OI37 · 808 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
9,878 km (approx.)
Last such locator decoded
2026-11-04 21:13 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 UTCBandYE4FNN S/NCounterpartCounterpart S/NMsgsCapture
11-04 21:17 40m - / - IW0RLC -14 / - 4 Partial capture
11-04 21:15 40m -12 / - SP9XG - / -21 3 Partial capture
11-04 21:12 40m -11 / - TC2TR - / -24 4 Partial capture
11-04 21:10 40m -10 / -12 DB2GM -10 / -20 8 Partial capture
11-04 21:09 40m - / - IW0RLC -14 / - 4 Partial capture
11-04 21:08 40m -12 / -14 DL1GLO -8 / - 3 ✓ Closing observed
11-04 21:07 40m -14 / - R4LL/6B - / -17 2 Partial capture
11-04 21:06 40m -14 / - SP2UKB - / -18 3 ✓ Closing fragment
11-04 21:05 40m - / - EA6APW -13 / - 3 Partial capture
11-04 21:05 40m -16 / - CT1EMI - / -14 2 ✓ Closing fragment
11-04 21:03 40m -15 / - EA4IAH - / -16 2 ✓ Closing fragment
11-04 21:02 40m -12 / - OM1FED - / -16 2 Partial capture
11-04 21:00 40m - / - F8MRQ -12 / - 2 Partial capture
11-04 21:00 40m -14 / - UZ5CA - / -19 2 ✓ Closing fragment
11-04 20:43 80m - / -7 JA0FSB -11 / - 3 Partial capture
11-04 14:47 40m -14 / -17 UT3SO -4 / -17 6 ✓ Full exchange observed
11-04 14:45 40m -15 / - BI7CEE - / -9 3 Partial capture
11-04 14:40 40m -12 / - BI9DAD - / - 2 Partial capture
11-04 14:40 40m -10 / -10 RC4AC -14 / -20 6 Partial capture
11-04 14:37 40m -11 / -3 RA5CQ +6 / -14 4 ✓ Full exchange observed
11-04 14:36 40m -8 / - BH4FPS - / -14 2 Partial capture
11-04 14:35 40m -8 / -16 RM1B -12 / -10 4 ✓ Full exchange observed
11-04 14:34 40m -8 / - BH7DFZ - / -7 2 Partial capture
11-04 14:33 40m - / - PD8MD -2 / - 2 Partial capture
11-04 14:32 40m -9 / - R2ZCA - / - 3 Partial capture
11-04 14:31 40m -10 / - R4GM -4 / -8 3 ✓ Closing observed
11-04 14:30 40m -11 / - BY1BY - / -13 3 ✓ Closing fragment
11-03 17:22 40m -12 / - RT2D - / -23 3 Partial capture
11-03 17:19 40m -12 / -20 RA3X -7 / - 6 Partial capture
11-03 17:17 40m -12 / - BH2SIV - / -11 4 Partial capture
11-03 17:15 40m -10 / - R0TA - / -15 2 Partial capture
11-03 17:14 40m -9 / - EX8ABR - / -13 2 Partial capture
11-03 17:12 40m - / - DL3ND -18 / - 4 Partial capture
11-03 17:10 40m -12 / - PE40EUDXF - / -14 5 Partial capture
11-03 17:07 40m - / - IZ2SXZ 0 / - 2 Partial capture
11-03 17:07 40m -14 / - UN9L - / -16 4 Partial capture
11-03 17:03 40m - / - R3YAR +4 / - 4 Partial capture
11-03 17:02 40m -14 / - PE40EUDXF - / - 6 Partial capture
11-03 17:02 40m - / - UA3IHJ -3 / - 6 Partial capture
11-03 16:58 40m - / - 9A9ZG -1 / - 3 Partial capture
11-03 16:57 40m - / - SQ3F +1 / - 3 Partial capture
11-03 16:56 40m -14 / -4 OZ1HDF -4 / - 4 ✓ Closing observed
11-03 15:56 40m - / - PD1EN -12 / - 2 Partial capture
11-03 15:55 40m - / - LZ2INP +8 / - 4 Partial capture
11-03 15:54 40m - / - OH8EFI -11 / - 6 Partial capture
11-03 15:53 40m - / - F4NJT -16 / - 4 Partial capture
11-03 15:53 40m - / -17 RD7O -8 / - 3 ✓ Closing fragment
11-03 15:53 40m - / - G3SBP -6 / - 2 Partial capture
11-03 15:53 40m - / -6 R6NH -8 / - 4 ✓ Closing fragment
11-03 15:49 40m -12 / -10 SQ3F +5 / - 9 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
211215  -9 2446  YE4FNN DB2GM R-12
211230 -10 2397  TC2TR YE4FNN OI37
211245  -8 2446  YE4FNN DB2GM R-12
211300 -12 2397  TC2TR YE4FNN OI37
211315  -8 2818  YE4FNN G1VWC IO92
211315  -9 2446  YE4FNN DB2GM R-12
211330 -11 2397  TC2TR YE4FNN R-24
211345 -24 1633  YE4FNN F4BHK JN08
211530 -12 2397  SP9XG YE4FNN R-21 (x3)
211715 -15 2231  YE4FNN IW0RLC JN63 (x4)
80m
UTC    dB Audio  Message
224030  -4 1857  YE4FNN IZ5NRF JN53
224045 +15 2585  YE4FNN 4O4A -14
224100 +12  558  YE4FNN OE3UKW -14
224115 +15 2585  YE4FNN 4O4A -16
224200  +4  558  YE4FNN OE3UKW -14 (x6)
225130  +6 2248  YE4FNN 4O4A -25 (x2)
204315 -12  655  YE4FNN JA0FSB PM97 (x3)
60m
UTC    dB Audio  Message
153745  +2 2171  YE4FNN DL7UMG JO60
153745  -3 2567  YE4FNN DL2MIJ JN58
153815 -24 1671  YE4FNN ES2HV KO29
153815  -2 2567  YE4FNN DL2MIJ JN58
153845  -8 2627  YE4FNN OH3JA KP22
153845  -7 2567  YE4FNN DL2MIJ JN58
153915 -10 2627  YE4FNN OH3JA KP22 (x6)
154900  +1 1537  YE4FNN IC8BNR JN60 (x3)
10m
UTC    dB Audio  Message
161730 -13 1272  YE4FNN R6DWD -18
154730 -24 1767  YE4FNN ON5RZ JO21
110230 -22 1787  YE4FNN F5MXH JN07 (x2)
080545 -19 1940  YE4FNN ON4CET JO21 (x7)
152345  +0 2242  YE4FNN CT1AOZ IM59 (x3)
152915 -24 1484  YE4FNN PV8AJ RR73
20m
UTC    dB Audio  Message
215645  -5  963  YE4FNN LU8VLE -18 (x2)
224830 -15 2393  HI3CH YE4FNN OI37
150315 -21 2387  R6OAD YE4FNN OI37 (x3)
150645 -18 1884  BA4VDC YE4FNN OI37
150815 -16 1884  BH3IJF YE4FNN OI37
150845 -16 1884  WA2TMB YE4FNN -16
150915 -15 1884  RM6OS YE4FNN OI37 (x2)
151045 -13 1885  BH3IJF YE4FNN R-11
151145 -13 1885  UB8AHK YE4FNN OI37
151415 -13 1885  UT7AM YE4FNN -10
151830  -7 1885  R9FFZ YE4FNN OI37

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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