F4JLS — 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: France Most frequent locator attributed to this token: IN97

Receiver-side FT8 activity involving F4JLS, decoded by SO8OO in southeastern Poland. 1,339 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-22.

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 1,339 FT8 messages attributed to F4JLS as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (60%), followed by 40 m (37%) and 10 m (3%). Most decodes (68%) 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 (73%); the estimated median was -5 dB.

Overview

1,339
Messages attributed
10
UTC dates decoded
99
Active 15-min windows
-5 dB
Estimated median S/N

Bands

40m · 495 20m · 808 10m · 36
First attributed message: 2026-06-08
Last attributed message: 2026-10-22 17:03 UTC

Observed FT8 message patterns

Attributed sample
1,339 messages
Active dates
10 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-12 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 46, moderate (-15 to -9 dB) 310, strong (≥ -8 dB) 983.

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 F4JLS 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 F4JLS

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
IN97 · 902 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,687 km (approx.)
Last such locator decoded
2026-10-22 17:03 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 UTCBandF4JLS S/NCounterpartCounterpart S/NMsgsCapture
10-22 16:59 40m +1 / - IZ4HMQ - / - 7 Partial capture
10-22 16:57 40m +1 / - DK1HSI +2 / +2 5 ✓ Full exchange observed
10-21 23:31 40m -5 / - UN0GY - / - 3 Partial capture
10-21 23:26 40m -7 / - KB1FJC - / -11 7 Partial capture
10-21 23:25 40m -4 / - IZ8XXE - / - 2 ✓ Closing fragment
10-21 23:23 40m -8 / - CT7BRV - / - 3 ✓ Closing fragment
10-20 21:34 40m -12 / - A61DD - / - 3 Partial capture
10-20 21:31 40m -17 / +1 EA5HRW -22 / - 4 ✓ Full exchange observed
10-20 21:29 40m -12 / - SP9TBT - / -11 4 ✓ Closing fragment
10-18 23:35 40m -11 / - VO1ACZ - / -16 3 ✓ Closing fragment
10-18 23:34 40m - / -6 F1PBZ +4 / - 3 Partial capture
10-18 23:25 40m -8 / - KN1OBI - / - 7 Partial capture
10-18 23:24 40m -6 / - IW2MYH - / -4 3 ✓ Closing fragment
10-18 23:20 40m -6 / - HI8WJI - / - 8 Partial capture
10-18 23:19 40m - / - RN6HK -7 / - 2 Partial capture
10-18 23:14 40m -7 / - HK3AB - / -20 7 Partial capture
10-18 23:13 40m -3 / - BG0FQU - / -16 3 ✓ Closing fragment
10-18 23:07 40m -6 / - EA7LIC - / - 8 Partial capture
10-18 23:04 40m - / - R2AL -12 / - 4 Partial capture
10-18 23:01 40m -9 / - HB9EOT - / -12 4 ✓ Closing fragment
10-18 23:00 40m -8 / -8 E75C -13 / -5 5 ✓ Full exchange observed
10-18 22:56 40m -10 / - EA7LIC - / - 6 Partial capture
10-18 22:54 40m -5 / -9 YO3GNF -1 / +3 5 ✓ Full exchange observed
10-18 22:52 40m -5 / -15 IQ4JO -6 / - 4 ✓ Closing observed
10-18 22:50 40m - / - R2AL -14 / - 3 Partial capture
10-18 22:49 40m - / - TA3NK -6 / - 11 Partial capture
10-18 22:44 40m -8 / - OE8JOTA - / - 2 Partial capture
10-18 22:44 40m - / - R2AL -11 / - 4 Partial capture
10-18 22:42 40m -6 / - UT4VL - / -12 3 ✓ Closing fragment
10-18 22:39 40m -5 / - HA9GKL - / -3 5 Partial capture
10-18 22:36 40m -9 / - IU8LMC - / +2 5 ✓ Closing fragment
10-18 22:32 40m -5 / - PA3MVD -22 / -19 6 Partial capture
10-18 22:31 40m -4 / - OK1TRA -9 / +2 4 ✓ Full exchange observed
10-18 22:30 40m -5 / - LZ2IP -10 / +2 4 ✓ Full exchange observed
10-18 22:27 40m -4 / -3 EX7CQ -3 / +8 6 ✓ Full exchange observed
10-18 22:27 40m - / - R2AL -12 / - 3 Partial capture
09-04 15:35 40m - / -8 OZ/KD0NDU -10 / - 2 Partial capture
09-04 15:34 40m - / -9 IN3LTL -17 / - 2 ✓ Closing fragment
09-04 14:54 40m - / -2 HA3HM -13 / - 2 ✓ Closing fragment
09-04 14:36 40m - / -2 DK8VW -13 / - 5 ✓ Closing fragment
09-04 14:33 40m - / - DL9KM -3 / - 7 Partial capture
09-04 14:09 40m - / -16 ON4AGV -22 / - 2 ✓ Closing fragment
09-04 13:25 40m - / - OK3MB -16 / - 2 Partial capture
09-04 13:06 40m - / -2 PD7JLP -18 / - 2 ✓ Closing fragment
09-04 12:58 40m - / -10 DL1JEL +2 / - 2 ✓ Closing fragment
09-04 12:45 40m - / -4 DA1ST -15 / - 4 ✓ Closing fragment
09-04 12:39 40m - / -12 OE2CAL -7 / - 4 ✓ Closing fragment
09-04 12:27 40m - / - DA1ST -17 / - 3 Partial capture
08-30 07:34 40m - / - DG1YHP -8 / - 3 ✓ Closing fragment
08-30 07:07 40m - / -6 DM5KM -2 / - 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
165700  +0 2598  CQ F4JLS IN97
165715  -7 2598  F4JLS IK1MJK JN35
165730  +0 2598  DK1HSI F4JLS IN97
165745  +1  926  F4JLS DK1HSI +11
165800  +2 2598  DK1HSI F4JLS R+02
165815  +4  926  F4JLS DK1HSI RR73
165830  +1 2598  DK1HSI F4JLS 73
165900  +1 2598  IZ4HMQ F4JLS IN97 (x7)
170300  -1 2598  OZ7TN F4JLS IN97
20m 
UTC    dB Audio  Message
205430  -3 2607  PY5QW F4JLS IN97 (x3)
205645 -13 2151  F4JLS CX6TU -07 (x2)
210245 -14  774  F4JLS HK4LGH -16 (x2)
215515  -4  963  F4JLS LU8VLE -12
215730 -14 2638  WY0V F4JLS IN97
221645 -11 1277  F4JLS V31DL EK57 (x2)
224415 -14 1467  F4JLS PR2RO -16 (x2)
225615 -12  905  F4JLS TI5RR -16 (x2)
10m 
UTC    dB Audio  Message
101545 -23 1420  DL5DQZ F4JLS -03
102600 -19 2355  F4JLS PD9FLX JO22
102630 -23 1571  F4JLS PD0HLA -21
102700 -13 2355  F4JLS PD9FLX JO22
102700 -17 1571  F4JLS PD0HLA -21

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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