IS0IGM — 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 IS0IGM, decoded by SO8OO in southeastern Poland. 137 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 3 UTC dates in the available aggregate history. Observed between 2026-09-20 and 2026-10-21.

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 137 FT8 messages attributed to IS0IGM as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (58%), followed by 80 m (42%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

137
Messages attributed
3
UTC dates decoded
11
Active 15-min windows
-10 dB
Estimated median S/N

Bands

First attributed message: 2026-09-20
Last attributed message: 2026-10-21 18:32 UTC

Observed FT8 message patterns

Attributed sample
137 messages
Active dates
3 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-18 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 45, strong (≥ -8 dB) 62.

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 IS0IGM

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 · 51 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,535 km (approx.)
Last such locator decoded
2026-10-21 18:30 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 UTCBandIS0IGM S/NCounterpartCounterpart S/NMsgsCapture
10-21 18:32 80m +2 / - EA4D - / -3 2 ✓ Closing fragment
10-21 18:30 80m 0 / +2 IQ4JO 0 / - 4 ✓ Full exchange observed
10-21 18:27 80m 0 / 0 DD0IPA -4 / -1 5 ✓ Full exchange observed
10-21 18:25 80m +3 / -13 EU7DW +6 / -11 9 Partial capture
10-21 18:24 80m - / - SP1IWC +3 / - 3 Partial capture
10-21 18:22 80m +2 / -1 LY1DY +14 / +1 6 ✓ Full exchange observed
10-21 18:20 80m +8 / -18 R8PG 0 / - 3 ✓ Closing observed
10-21 18:19 80m - / - JF8QNF -14 / - 2 Partial capture
10-21 18:18 80m +4 / - MW7GQB - / +4 2 ✓ Closing fragment
10-21 18:16 80m - / - OH8HTG +8 / - 4 Partial capture
10-21 18:16 80m - / - R9FF -10 / - 3 Partial capture
10-21 18:15 80m - / - LY1DY +14 / - 3 Partial capture
10-21 18:15 80m - / - RV9UNK -6 / - 2 Partial capture
10-21 18:13 80m +4 / -8 IS0IYV +8 / - 6 ✓ Full exchange observed
10-21 18:11 80m +10 / - SV9MBH - / +9 2 ✓ Closing fragment
10-21 18:10 80m +8 / - IQ4JO +8 / +8 6 Partial capture
10-21 18:07 80m -1 / -13 R7KJM -9 / -7 5 ✓ Full exchange observed
10-21 18:04 80m - / - DK1MBY -12 / - 3 Partial capture
10-21 18:03 80m -14 / -12 HF5A +7 / -2 5 ✓ Full exchange observed
10-21 17:44 160m -15 / - PE2AE - / -15 5 Partial capture
10-21 17:40 160m -14 / - IU5TSN - / -5 2 ✓ Closing fragment
10-21 17:38 160m -18 / +4 R6MO -19 / -18 8 ✓ Full exchange observed
10-21 17:38 160m -14 / - IK4HPW -18 / +6 5 ✓ Closing observed
10-21 17:35 160m -14 / -11 DF5AU -1 / +8 7 ✓ Full exchange observed
10-21 17:34 160m -11 / - EA4NW - / -14 2 ✓ Closing fragment
10-21 17:31 160m -8 / -15 OH5KNL -6 / -3 6 ✓ Full exchange observed
10-21 17:29 160m -16 / - DK1RWR - / -11 4 Partial capture
10-21 17:27 160m -15 / - S56P +12 / - 4 ✓ Closing observed
10-17 17:01 10m - / - CT2KCK -4 / - 3 Partial capture
09-26 17:42 80m -4 / -2 F1PBZ +2 / - 4 ✓ Full exchange observed
09-26 17:37 160m -12 / -9 LZ7VV -5 / +3 5 ✓ Full exchange observed
09-26 17:34 160m -18 / - UA8J -12 / -12 3 ✓ Closing observed
09-26 17:30 160m -17 / -18 LZ7VV 0 / -10 10 Partial capture
09-26 17:28 160m -14 / +2 HA5AO +14 / +6 4 ✓ Full exchange observed
09-20 21:15 80m - / - OZ1HPS 0 / - 2 Partial capture
09-20 21:12 80m 0 / - DL1HTB -9 / -14 6 ✓ Closing observed
09-20 21:11 80m +3 / +1 EW8DU -5 / -11 7 ✓ Full exchange observed
09-20 21:11 80m -2 / -4 EU7FBB +1 / -24 5 ✓ Full exchange observed
09-20 21:11 80m - / -19 R3VA -3 / - 9 Partial capture
09-20 21:11 80m +3 / -10 RA6OY -2 / -2 4 ✓ Full exchange observed
09-20 21:09 80m -2 / - EA5HM - / +9 3 Partial capture
09-20 21:08 80m -4 / - EA6Y +12 / - 2 Partial capture
09-20 21:07 160m - / -14 SP2MEF 0 / - 3 Partial capture
09-20 21:06 80m -5 / -3 DK6WS +1 / - 6 ✓ Closing observed
09-20 21:06 80m - / - OZ5AGJ -5 / - 3 Partial capture
09-20 21:06 160m - / - 4L7T -15 / - 3 Partial capture
09-20 21:04 160m -16 / - SP2MEF - / - 2 Partial capture
09-20 20:58 160m - / - 4L7T -14 / - 2 Partial capture
09-20 20:57 160m - / - S57MPU +10 / - 4 ✓ Closing fragment
09-20 20:54 160m -4 / +7 SP3BPU +14 / +6 6 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
182730  +3 1887  DD0IPA IS0IGM R-01
182745 +11  917  IS0IGM EU7DW -18
182745  -1 1887  IS0IGM DD0IPA RR73
182800  -3 1887  DD0IPA IS0IGM 73
182830  +2 1887  EU7DW IS0IGM R-11 (x3)
183000  +1 1887  CQ IS0IGM JM49 (x2)
183045  -1 2092  IS0IGM IQ4JO JN63
183100  -1 1887  IQ4JO IS0IGM +16
183115  +0 2092  IS0IGM IQ4JO R+02
183130  +2 1887  IQ4JO IS0IGM RR73
183200  +1 1887  EA4D IS0IGM -03 (x2)
160m
UTC    dB Audio  Message
174400 -17 1055  CQ IS0IGM JM49
174430 -14 1056  PE2AE IS0IGM -15 (x5)
174730 -24 1056  CQ IS0IGM JM49 (x6)
175130 -21 1895  UD8S IS0IGM JM49
175630 -23 1895  CQ IS0IGM JM49 (x2)
10m
UTC    dB Audio  Message
170145  -5 1779  IS0IGM CT2KCK IM59 (x3)

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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