IS0IYX — 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: Sardinia Most frequent locator attributed to this token: JM49

Receiver-side FT8 activity involving IS0IYX, decoded by SO8OO in southeastern Poland. 157 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 13 UTC dates in the available aggregate history. Observed between 2026-07-20 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 157 FT8 messages attributed to IS0IYX as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (46%), followed by 40 m (36%) and 20 m (11%). Most decodes (64%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

157
Messages attributed
13
UTC dates decoded
28
Active 15-min windows
-12 dB
Estimated median S/N

Bands

First attributed message: 2026-07-20
Last attributed message: 2026-11-04 23:43 UTC

Observed FT8 message patterns

Attributed sample
157 messages
Active dates
13 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-20 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 46, moderate (-15 to -9 dB) 56, strong (≥ -8 dB) 55.

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 IS0IYX

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
JM49 · 87 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,535 km (approx.)
Last such locator decoded
2026-11-04 23:40 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 UTCBandIS0IYX S/NCounterpartCounterpart S/NMsgsCapture
11-04 23:42 80m -4 / -18 G7SLB -5 / -5 7 Partial capture
11-04 23:40 80m -12 / - EA4D - / -10 2 ✓ Closing fragment
11-04 23:39 80m -6 / - UA6YW +7 / -11 3 ✓ Closing observed
11-04 23:37 80m -6 / - 4O7CC -1 / +9 4 ✓ Closing observed
11-04 23:36 80m - / -14 OE5GQQ +14 / - 2 Partial capture
11-04 23:34 80m -12 / -13 UN0GY -7 / -13 6 ✓ Full exchange observed
11-04 23:29 80m - / - SP4WJ -12 / - 8 Partial capture
11-04 23:28 80m -2 / -20 RO2X +8 / -16 7 ✓ Full exchange observed
11-04 23:26 80m -3 / -3 YU6DX +8 / +4 4 ✓ Full exchange observed
11-04 23:25 80m -8 / -14 RX3ASQ +2 / -8 5 ✓ Full exchange observed
11-04 23:23 80m -2 / -9 S51Z -7 / -11 5 ✓ Full exchange observed
11-04 23:21 80m -6 / -8 9A2WA -9 / -22 7 ✓ Full exchange observed
11-04 23:20 80m -12 / -9 SP6FME +3 / -6 5 ✓ Full exchange observed
11-04 23:19 80m -8 / - EC3A - / -2 2 ✓ Closing fragment
11-04 23:18 80m -8 / - IU2THY +14 / -4 5 ✓ Full exchange observed
11-04 23:15 40m -6 / - EX8ABR - / - 2 Partial capture
11-03 19:43 80m -18 / - UN0GY - / - 2 Partial capture
11-03 19:07 80m - / - OH1ZE -8 / - 3 Partial capture
11-03 19:01 80m +1 / - DK4RH -4 / -11 3 Partial capture
11-03 19:01 80m - / -14 DO1WFW -15 / - 6 ✓ Closing fragment
11-03 18:58 80m -1 / -5 YO4NT -2 / - 4 ✓ Closing observed
11-03 18:56 80m - / - OH1ZE -6 / - 6 Partial capture
11-03 18:56 80m - / - DO1MDO -10 / - 3 Partial capture
11-03 18:54 80m 0 / -10 DO4MAJ -9 / - 8 ✓ Closing observed
11-03 18:50 40m -1 / - YP40CSM - / - 5 Partial capture
11-03 18:30 40m - / - G4DBW -10 / - 2 Partial capture
11-03 18:30 40m - / - PE1NPS -8 / - 2 Partial capture
11-03 18:28 40m -4 / - JY5IB - / -19 2 Partial capture
11-02 17:41 80m - / -11 SP9EO +3 / - 3 ✓ Closing fragment
11-01 22:07 80m - / -11 DK3DUA +20 / - 4 ✓ Closing fragment
11-01 22:05 80m -17 / -17 SV1JFL -11 / -3 7 ✓ Full exchange observed
11-01 22:03 80m -15 / -16 S50XX +4 / +1 4 Partial capture
10-11 02:59 40m -8 / - SQ9TS/P - / - 2 Partial capture
10-11 02:57 40m -11 / - RA9YTI - / -12 3 ✓ Closing fragment
10-11 02:53 40m -16 / - TI5LUA - / - 2 Partial capture
10-11 02:49 40m -16 / - K3RH - / -15 2 ✓ Closing fragment
10-11 02:46 40m -14 / - SV5BYP -7 / +8 5 ✓ Closing observed
10-11 02:38 40m -20 / - YY5FBP - / - 4 Partial capture
10-11 02:37 40m -21 / - HP1VS - / - 2 Partial capture
10-11 02:33 40m -24 / - 8P6ET - / -6 2 ✓ Closing fragment
10-11 02:31 40m -22 / - OA4ENG - / - 2 Partial capture
10-07 23:14 80m -12 / -15 UN0GY -13 / - 5 Partial capture
10-07 23:10 80m - / -13 DL2JPN +4 / - 5 ✓ Closing fragment
10-07 23:06 80m -9 / -10 DL9KM -8 / -20 4 ✓ Full exchange observed
10-07 23:03 80m - / -10 CT7AUT -21 / - 5 ✓ Closing fragment
10-07 23:02 80m - / - OM1AGE -2 / - 2 Partial capture
10-07 23:01 80m - / -16 IU5HIU -12 / - 3 ✓ Closing fragment
10-07 23:00 80m - / -10 9A5E +10 / - 6 ✓ Closing fragment
10-07 23:00 80m -14 / -9 F1PBZ +5 / -7 3 ✓ Full exchange observed
09-10 06:21 40m -10 / - FK8HC - / - 9 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
233845  -3 2461  4O7CC IS0IYX 73
233900  +7 2461  IS0IYX UA6YW LN04
233915  -8 2461  UA6YW IS0IYX -11 (x2)
234015  -7 2461  CQ IS0IYX JM49
234045 -13 2461  EA4D IS0IYX -10 (x2)
234200  -8  300  IS0IYX G7SLB IO92 (x2)
234315  -4 2461  G7SLB IS0IYX -05
234330  -2  300  IS0IYX G7SLB R-18 (x2)
234430 -10 2638  IS0IYX VO1HH -14
234430  +0  300  IS0IYX G7SLB R-18 (x2)
40m
UTC    dB Audio  Message
182845  -3 1189  JY5IB IS0IYX R-19 (x2)
183000 -10 2514  IS0IYX PE1NPS JO22
183000  -8 2685  IS0IYX G4DBW JO01 (x2)
183130  -7 2514  IS0IYX PE1NPS JO22
185000  -6 2988  YP40CSM IS0IYX JM49 (x5)
231245  -9 1121  RW3YS IS0IYX JM49
231515  -4 1183  EX8ABR IS0IYX JM49 (x2)
234030 -14 1533  IS0IYX RW3YS -17
20m
UTC    dB Audio  Message
150200 -17 2299  CQ DX IS0IYX JM49 (x5)
150415 -17 2384  IS0IYX R0AX NO56
150430 -15 2298  CQ DX IS0IYX JM49
150615 -13 2298  IS0IYX R6YBU LN04
150630 -19 2298  CQ DX IS0IYX JM49
150645  -8 2298  IS0IYX R6YBU LN04
150700 -17 2299  CQ DX IS0IYX JM49 (x2)
150830 -13 2299  JA9OGE IS0IYX -25
150845 +11 2453  RI1FJL IS0IYX R+06 (x2)
10m
UTC    dB Audio  Message
092900 -20 2349  CQ DX IS0IYX JM49
093100 -17 2349  JJ1RDX IS0IYX -06
093330 -11 2563  JL1XMN IS0IYX -13
093630 -13 2562  R9BT IS0IYX RR73
093930 -13 2563  CQ DX IS0IYX JM49
094000 -15 2563  EX8MEM IS0IYX R+05
094530 -17 2334  CQ DX IS0IYX JM49

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

1 CW reception events in the last 30 days.

  • 40m: 1 events; last heard 2026-10-19 22:09 UTC

Latest CW receptions

UTCBandkHzS/N · 500 HzWPMListen
2026-10-19 22:09:5340m7027.04010.4 dB21.7WebSDR ↗
CW reception history

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