IU6STP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN63

Receiver-side FT8 activity involving IU6STP, decoded by SO8OO in southeastern Poland. 1,744 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 64 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-08.

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 1,744 FT8 messages attributed to IU6STP as the transmitting token by decoded message structure across 64 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (44%), followed by 40 m (28%) and 80 m (19%). Most decodes (60%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10.4 dB.

Overview

1,744
Messages attributed
64
UTC dates decoded
299
Active 15-min windows
-10.4 dB
Estimated median S/N

Bands

80m · 328 60m · 147 40m · 480 20m · 765 10m · 24
First attributed message: 2026-06-06
Last attributed message: 2026-09-08 18:19 UTC

Observed FT8 message patterns

Attributed sample
1,744 messages
Active dates
64 UTC dates
Estimated median S/N
-10.4 dB
Estimated 10th-90th percentile
-19 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 445, moderate (-15 to -9 dB) 591, strong (≥ -8 dB) 708.

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 IU6STP 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 IU6STP

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
JN63 · 1,326 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
979 km (approx.)
Last such locator decoded
2026-09-08 18:14 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 UTCBandIU6STP S/NCounterpartCounterpart S/NMsgsCapture
09-08 18:14 60m -13 / - YE1BON - / - 2 Partial capture
09-04 00:44 80m -17 / - AP2HA - / - 4 Partial capture
09-01 19:05 60m -12 / - RN1CW - / - 3 Partial capture
08-28 03:24 40m +1 / - TG9AUO - / - 2 Partial capture
08-28 03:17 40m +2 / - TG9AUO - / - 6 Partial capture
08-28 03:10 40m -2 / - HC1BI - / - 11 Partial capture
08-28 03:09 40m -2 / - XE1IHD - / - 2 Partial capture
08-28 02:50 40m +9 / - RI1FJL - / - 3 Partial capture
08-27 20:57 20m -13 / - WA1ZYX - / - 5 Partial capture
08-27 20:20 80m -10 / - SK0MT - / -16 11 ✓ Closing fragment
08-27 19:21 80m -10 / - RD9D - / - 8 Partial capture
08-27 19:12 80m -11 / - RD9D - / - 6 Partial capture
08-27 18:45 80m -6 / - R1CAA - / - 6 Partial capture
08-27 18:32 80m -4 / - R1CAA - / -18 15 Partial capture
08-27 18:02 80m -9 / - RA9CUU - / - 6 Partial capture
08-27 17:58 80m -16 / - 9K2HN - / - 3 Partial capture
08-23 19:36 20m - / - EA7FMT -14 / - 2 Partial capture
08-22 19:40 60m -14 / - RA3DA - / - 3 Partial capture
08-22 03:11 20m -8 / - NM0U - / - 2 Partial capture
08-22 03:08 20m +2 / - NM0U - / - 3 Partial capture
08-22 03:06 20m +2 / - R9CP - / -12 2 ✓ Closing fragment
08-22 03:02 20m -10 / - KJ5JLX - / - 3 Partial capture
08-22 02:59 20m -7 / - HR1R - / -21 11 Partial capture
08-22 02:56 20m +2 / - WF7B - / - 5 Partial capture
08-22 02:52 20m -3 / - KJ5JLX - / - 5 Partial capture
08-22 02:49 20m +8 / - K5MGY - / -10 3 ✓ Closing fragment
08-22 02:47 20m +3 / - <...> - / -23 2 Partial capture
08-22 02:46 20m 0 / - KJ5JLX - / - 2 Partial capture
08-22 02:44 20m -4 / +4 DK5UP -21 / -12 5 ✓ Full exchange observed
08-22 02:43 20m 0 / - KJ5JLX - / - 3 Partial capture
08-22 02:39 20m -2 / - TI4OP - / - 3 Partial capture
08-22 02:35 20m +2 / - HK5R - / - 8 Partial capture
08-22 02:28 20m +6 / - <...> - / - 3 Partial capture
08-22 02:07 60m -5 / - TI2CC - / -18 6 ✓ Closing fragment
08-22 02:06 60m -2 / - W4CHA -13 / -13 3 ✓ Closing observed
08-22 02:02 60m +2 / - VE3FF -7 / - 2 ✓ Closing observed
08-22 01:54 60m - / -5 DL9KM -14 / - 2 ✓ Closing fragment
08-22 01:53 60m -12 / - WB8ART - / -16 2 ✓ Closing fragment
08-22 01:49 60m -3 / -5 SM7WNM -16 / - 3 ✓ Closing observed
08-22 01:48 60m -2 / - N1XX - / -19 2 ✓ Closing fragment
08-22 01:46 60m +2 / -12 PE1NPS +5 / - 4 ✓ Closing observed
08-22 01:44 60m -8 / -1 DL1UDO -2 / -6 6 ✓ Full exchange observed
08-22 01:42 60m -8 / - K8KS - / -12 2 ✓ Closing fragment
08-22 01:39 60m -4 / -4 DD6ZV +4 / -6 7 ✓ Full exchange observed
08-22 01:39 60m 0 / -4 G0AZH -3 / -6 5 ✓ Full exchange observed
08-22 01:35 60m -8 / - XE1KK - / -15 2 ✓ Closing fragment
08-22 01:34 60m -6 / - WB2WPM - / -13 3 ✓ Closing fragment
08-22 01:31 60m -12 / - RX6DA - / - 3 Partial capture
08-21 04:38 20m -2 / - WX3P - / - 2 Partial capture
08-21 04:33 20m -6 / - WA3MH - / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
021215  -6  837  CQ IU6STP JN63 (x3)
194000 -11 1314  RA3DA IU6STP JN63 (x3)
194200 -13 2465  RO2X IU6STP JN63
190300 -15 1214  RN1CW IU6STP JN63 (x4)
200330 -16 1071  DN1QH IU6STP JN63
181400 -13 2210  YE1BON IU6STP JN63 (x2)
181915 -17 1731  Z68BR IU6STP 73
80m 
UTC    dB Audio  Message
202300 -13 1087  SK0MT IU6STP JN63 (x6)
033400 -21 1703  HK3X IU6STP JN63
034500 -14 1056  KP2B IU6STP JN63
035145 -17 1812  GU4WRP IU6STP 73
035700  -7 1055  KP2B IU6STP JN63
184545 -14 1003  IU6STP OR0A RR73
004415 -17  616  AP2HA IU6STP JN63 (x4)
40m 
UTC    dB Audio  Message
031300  -4 1956  HC1BI IU6STP JN63 (x6)
031730  -2 2040  TG9AUO IU6STP JN63 (x8)
020345 -22 1158  HK0RMR IU6STP JN63
20m 
UTC    dB Audio  Message
030815  -4 2206  NM0U IU6STP JN63 (x5)
192945 -20 1718  IU6STP SH5RJX RR73
193615 -14 1425  IU6STP EA7FMT IM67 (x2)
205730 -16 1155  WA1ZYX IU6STP JN63 (x5)
211330 -14 1154  IU6STP KA8YGL RR73
211915  -8 1155  RI1FJL IU6STP JN63
10m 
UTC    dB Audio  Message
081130  -4  658  IU6STP SX0W +00 (x2)
084245 -15  725  BG0DLA IU6STP R-10
071715 -22 2108  IU6STP RA4ABH -07 (x2)
071800 -22 1652  R3PLA IU6STP R-19 (x2)
072045  -9 1808  IU6STP F4FSY -19 (x2)
072700 -20 1251  RY2B IU6STP R-24
072830 -21 1920  9A4AA IU6STP JN63
165815  -6  935  IU6STP DK4RH -01 (x2)
180230 -17 1268  IU6STP TA1BX -14
142845 -21 1291  PZ5RA IU6STP JN63

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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