IU2RJH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN55

Receiver-side FT8 activity involving IU2RJH, decoded by SO8OO in southeastern Poland. 123 FT8 messages attributed to this token as transmitter, on 60m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-12 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 123 FT8 messages attributed to IU2RJH as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (81%), followed by 60 m (19%). Most decodes (100%) fell within the six-hour window 03:00-09:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

123
Messages attributed
13
UTC dates decoded
25
Active 15-min windows
-9 dB
Estimated median S/N

Bands

60m · 23 20m · 100
First attributed message: 2026-06-12
Last attributed message: 2026-09-14 04:11 UTC

Observed FT8 message patterns

Attributed sample
123 messages
Active dates
13 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-18 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 27, moderate (-15 to -9 dB) 35, strong (≥ -8 dB) 61.

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 IU2RJH 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 IU2RJH

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
JN55 · 87 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
945 km (approx.)
Last such locator decoded
2026-09-14 04:11 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 UTCBandIU2RJH S/NCounterpartCounterpart S/NMsgsCapture
09-14 04:06 60m -18 / - SP5MIG - / 0 2 ✓ Closing fragment
09-10 03:57 60m - / - PA4PA +5 / - 2 Partial capture
09-09 04:00 40m - / - UB3DQR -13 / - 2 Partial capture
09-09 03:58 40m - / -3 LA8ENA -24 / - 2 Partial capture
09-09 03:56 40m - / -18 EA9QD -8 / - 2 ✓ Closing fragment
08-30 03:46 60m -12 / -14 HA7TM -8 / +4 5 ✓ Full exchange observed
08-30 03:45 60m -14 / - W4DCL - / - 3 Partial capture
08-29 02:13 20m - / -14 LU5ILA -18 / - 2 ✓ Closing fragment
08-25 04:43 20m +1 / - ZL1GT - / -15 3 ✓ Closing fragment
08-25 04:39 20m -6 / - XQ1KK - / -1 4 ✓ Closing fragment
08-24 04:44 20m - / -17 7Z1FF -14 / - 13 Partial capture
08-21 08:47 20m -8 / - YV6BXN - / - 2 Partial capture
08-15 05:02 20m -8 / - ZL4TT - / +6 4 ✓ Closing fragment
08-15 05:01 20m -4 / - R9AV - / - 2 Partial capture
07-26 04:28 20m -16 / - C91RU - / -8 2 ✓ Closing fragment
07-14 04:51 20m -6 / - ZL4TT - / - 3 Partial capture
07-14 04:47 20m -4 / - ZL1RPC - / - 2 Partial capture
07-14 04:37 20m -6 / - A61DD - / -6 3 ✓ Closing fragment
07-14 04:32 20m -5 / - AE6CH - / - 3 Partial capture
07-14 04:28 20m 0 / - VK2GQR - / -15 5 ✓ Closing fragment
07-14 04:26 20m -3 / - ZL2CA - / -14 3 ✓ Closing fragment
07-14 04:22 20m +4 / - HC2GRC - / -7 3 ✓ Closing fragment
07-12 04:43 20m - / +1 RK4FF -19 / - 3 Partial capture
07-12 04:38 20m - / +3 RK4FF -14 / - 4 Partial capture
07-08 04:37 20m -17 / -13 R3RAQ -21 / -6 2 Partial capture
07-08 04:32 20m -16 / - VK7AC - / - 3 Partial capture
07-08 04:22 20m -3 / - HC2GRC - / - 3 Partial capture
07-08 04:16 20m +6 / - HC2GRC - / - 2 Partial capture
07-08 04:15 20m -4 / - NP3RK - / - 2 Partial capture
07-08 04:06 20m +1 / - UN0GY - / -8 3 ✓ Closing fragment
07-08 04:01 20m -15 / - HP2NG - / - 5 Partial capture
07-07 04:32 20m - / +2 JY5IB -5 / - 2 ✓ Closing fragment
07-05 05:39 20m - / - UR4QWW -20 / - 4 ✓ Closing fragment
07-04 04:37 20m -7 / - ZL3BWE - / - 4 Partial capture
07-04 04:23 20m -16 / - HI4WWA - / - 2 Partial capture
07-04 04:18 20m -14 / - ZL1VAH - / - 2 Partial capture
06-29 04:48 20m -5 / - HA7TM - / - 2 ✓ Closing fragment
06-29 04:46 20m -6 / - SV2HXV -14 / - 2 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
034945  -9  845  VA2HMD IU2RJH JN55
035700  +5  329  IU2RJH PA4PA JO22 (x2)
040400 -18 1444  CQ IU2RJH JN55 (x3)
040630 -14 1445  SP5MIG IU2RJH +00 (x2)
040730 -21 1445  CQ IU2RJH JN55 (x7)
40m 
UTC    dB Audio  Message
035600  -8  557  IU2RJH EA9QD -18 (x2)
035830 -23 1688  IU2RJH LA8ENA -03 (x2)
040030 -14 1009  IU2RJH UB3DQR KO85 (x2)
20m 
UTC    dB Audio  Message
044915 -13 1143  IU2RJH 7Z1FF R-17 (x3)
050915 -20 1495  IU2RJH VK3JMA RR73
043915  -6 1646  XQ1KK IU2RJH JN55 (x4)
044345  +1 1593  ZL1GT IU2RJH JN55 (x3)
044815  -6 1362  CO8CF IU2RJH JN55
040545  -9 1769  CU2JX IU2RJH JN55
021315 -19 1959  IU2RJH LU5ILA -14 (x2)

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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