IU8QTW — 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: Italy Most frequent locator attributed to this token: JN70

Receiver-side FT8 activity involving IU8QTW, decoded by SO8OO in southeastern Poland. 2,405 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 52 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-08.

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 2,405 FT8 messages attributed to IU8QTW as the transmitting token by decoded message structure across 52 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (44%), followed by 80 m (41%) and 20 m (12%). Most decodes (71%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (69%); the estimated median was -4 dB.

Overview

2,405
Messages attributed
52
UTC dates decoded
290
Active 15-min windows
-4 dB
Estimated median S/N

Bands

80m · 998 40m · 1,048 20m · 280 10m · 79
First attributed message: 2026-06-06
Last attributed message: 2026-10-08 01:00 UTC

Observed FT8 message patterns

Attributed sample
2,405 messages
Active dates
52 UTC dates
Estimated median S/N
-4 dB
Estimated 10th-90th percentile
-16.5 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 281, moderate (-15 to -9 dB) 465, strong (≥ -8 dB) 1,659.

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 IU8QTW 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 IU8QTW

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
JN70 · 1,793 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,175 km (approx.)
Last such locator decoded
2026-10-08 00:59 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 UTCBandIU8QTW S/NCounterpartCounterpart S/NMsgsCapture
10-08 00:59 80m -8 / -4 SQ2RAD +2 / +3 4 ✓ Full exchange observed
10-08 00:57 80m -10 / -14 SQ5ANT +2 / +8 5 ✓ Full exchange observed
10-08 00:56 80m - / - DK8HC +8 / - 5 Partial capture
10-08 00:56 80m - / - DL1UDO +6 / - 3 Partial capture
10-08 00:56 80m - / - ON4MAP -12 / - 5 Partial capture
10-08 00:56 80m -7 / -16 RX3ASQ 0 / -11 5 ✓ Full exchange observed
10-04 21:18 80m -5 / - IK8TWV - / - 4 Partial capture
10-04 20:53 80m -6 / - IQ2AAH - / - 4 Partial capture
10-04 20:50 80m -5 / -9 IQ9SZ -21 / - 4 ✓ Closing observed
09-26 04:33 80m - / - F5RRS -16 / - 3 Partial capture
09-26 04:32 80m -10 / -13 LZ2XF -16 / - 4 ✓ Closing observed
09-26 03:57 80m - / +3 SN100PKP +3 / - 2 Partial capture
09-26 03:54 80m - / +3 ES2AJ -4 / - 4 ✓ Closing fragment
09-26 02:30 40m -23 / - TN8GD - / - 3 Partial capture
09-26 02:09 40m -15 / - HF26WBC - / -11 7 Partial capture
09-26 02:03 40m -16 / - HF26WBC - / -11 4 Partial capture
09-26 01:36 40m -14 / - JY5IB - / - 2 ✓ Closing fragment
09-26 00:40 40m -20 / - 7Z1IS - / -11 3 ✓ Closing fragment
09-26 00:31 40m -11 / - XE1RK - / -10 7 ✓ Closing fragment
09-26 00:28 40m -13 / - LY4Q - / -6 4 Partial capture
09-26 00:26 40m -12 / - KG4JOK - / -19 3 ✓ Closing fragment
09-26 00:24 40m -10 / - R4HHN -14 / -1 4 ✓ Closing observed
09-26 00:16 80m -10 / - R2EA/P - / - 10 Partial capture
09-25 23:29 80m -5 / - R2EA/P - / - 18 Partial capture
09-25 23:20 80m -3 / - R2EA/P - / - 8 Partial capture
09-25 22:59 80m -3 / - R2EA/P - / - 4 Partial capture
09-25 22:54 80m - / -15 F1PBZ +3 / - 3 Partial capture
09-25 22:54 80m -6 / -4 YO4NF +6 / - 4 ✓ Full exchange observed
09-20 20:52 40m -2 / - JA4FKX - / -6 2 ✓ Closing fragment
09-20 20:52 40m -1 / - EW6Z - / -9 3 Partial capture
09-20 20:50 40m -3 / - TA2ED - / -18 3 ✓ Closing fragment
09-14 02:11 40m -19 / - KC9RAX - / - 4 Partial capture
09-14 02:04 40m -16 / - KC9RAX - / - 5 Partial capture
09-14 02:00 40m -14 / - KC9RAX - / - 3 Partial capture
09-14 01:51 40m -17 / - KC9RAX - / - 6 Partial capture
09-14 01:38 40m -17 / - KC9RAX - / - 13 Partial capture
09-14 01:28 40m -18 / - KC9RAX - / - 4 Partial capture
09-14 01:24 40m -20 / - K4JGC - / -5 7 Partial capture
09-14 01:14 40m -16 / - K4JGC - / - 6 Partial capture
09-14 01:12 40m -16 / - W6M - / - 3 Partial capture
09-14 01:10 40m -18 / - KA8KCH - / - 3 Partial capture
09-14 00:43 40m -15 / - N5HBG - / - 4 Partial capture
09-14 00:31 40m -17 / -13 UK8OM +2 / +1 7 Partial capture
09-13 04:53 40m -6 / - WA2HIP - / - 4 Partial capture
09-13 04:49 40m -6 / - WA2HIP - / - 4 Partial capture
09-13 04:45 40m -1 / - W8MW - / - 5 Partial capture
09-13 04:40 40m -11 / - KC1UVP - / -12 2 ✓ Closing fragment
09-13 04:38 40m -1 / - YO4GIY - / +5 2 ✓ Closing fragment
09-13 04:17 40m -2 / - W4MAA - / -20 34 Partial capture
09-07 01:05 80m - / -5 SO100PKP +17 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
005800  +2 1447  IU8QTW SQ5ANT -14
005800 -12 1242  IU8QTW ON4MAP JO20
005800 +10  565  IU8QTW DK8HC JO42
005815 -17 2031  SQ5ANT IU8QTW R+08
005830  +1 1447  IU8QTW SQ5ANT RR73
005830 -11 1242  IU8QTW ON4MAP JO20
005830  +5  565  IU8QTW DK8HC JO42
005845  -5 2032  SQ5ANT IU8QTW 73
005915  -9 2032  SQ2RAD IU8QTW JN70
005930  +2 1877  IU8QTW SQ2RAD -04
005945  -7 2033  SQ2RAD IU8QTW R+03 (x2)
010030  -9 1495  IU8QTW DL4DP JO31
010130 -24 2032  IU8QTW F6FHZ JN18 (x2)
40m 
UTC    dB Audio  Message
020515 -19 2067  HF26WBC IU8QTW R-11 (x9)
022545 -21 2066  TN8GD IU8QTW JN70 (x4)
024300 -24 2065  IU8QTW RK4FF -02
212445  -3 2067  CQ IU8QTW JN70
20m 
UTC    dB Audio  Message
112515  +0 2103  II7MGBT IU8QTW JN70
112545  +1 2103  <II7MGBA> IU8QTW JN70 (x14)
10m 
UTC    dB Audio  Message
185100 -15 1037  PY5JO IU8QTW JN70 (x4)
133930 -17 1113  CQ IU8QTW JN70 (x3)
134045  -8  728  IU8QTW LZ3CB KN32
134100 -19 1113  LZ3CB IU8QTW +06 (x2)
134215  -7  728  IU8QTW LZ3CB R-11
134500 -22 1710  <...> IU8QTW JN70
135100 -15  787  ZS6MGM IU8QTW JN70
135300 -10  728  LZ3CB IU8QTW JN70 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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