IZ5DKR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN53

Receiver-side FT8 activity involving IZ5DKR, decoded by SO8OO in southeastern Poland. 131 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-15.

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 131 FT8 messages attributed to IZ5DKR as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (83%), followed by 20 m (11%) and 80 m (6%). Several six-hour UTC windows tied for the largest share (89%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -4 dB.

Overview

131
Messages attributed
7
UTC dates decoded
15
Active 15-min windows
-4 dB
Estimated median S/N

Bands

80m · 8 40m · 109 20m · 14
First attributed message: 2026-06-12
Last attributed message: 2026-09-15 20:40 UTC

Observed FT8 message patterns

Attributed sample
131 messages
Active dates
7 UTC dates
Estimated median S/N
-4 dB
Estimated 10th-90th percentile
-13 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 93.

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 IZ5DKR 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 IZ5DKR

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
JN53 · 75 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,089 km (approx.)
Last such locator decoded
2026-09-15 20:39 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 UTCBandIZ5DKR S/NCounterpartCounterpart S/NMsgsCapture
09-15 20:39 40m +2 / - VJ6X - / -16 3 ✓ Closing fragment
09-15 20:37 40m +9 / - VK4MA - / - 3 Partial capture
09-15 20:34 40m +8 / - BD8FOD - / -14 3 ✓ Closing fragment
09-15 20:32 40m +9 / - BG5JGG - / - 3 Partial capture
09-15 20:30 40m +7 / -14 RA9ACA -9 / - 3 Partial capture
09-15 20:27 40m -2 / - VK2LAW - / -20 3 ✓ Closing fragment
09-15 20:25 40m +3 / - BG0FQU - / - 3 Partial capture
09-08 21:08 40m -16 / - 6K5XZE - / - 4 Partial capture
09-08 21:02 40m -16 / - 6K5XZE - / -24 5 Partial capture
09-08 20:55 40m -9 / - CX6TU - / - 3 Partial capture
09-08 20:47 40m -4 / - VK2NSS - / - 9 Partial capture
09-08 20:43 40m -1 / - BG7BVP - / - 2 Partial capture
09-08 20:41 40m -3 / - BI3UPU - / - 3 Partial capture
09-08 20:37 40m -5 / - BH4GUU - / - 3 Partial capture
09-07 20:28 80m -12 / -2 G8BCG -6 / - 6 ✓ Closing observed
09-07 20:23 80m -10 / -18 DL3MIB +9 / -2 11 ✓ Full exchange observed
09-07 20:19 80m -12 / -7 HA7TM +16 / -6 6 ✓ Full exchange observed
09-07 20:15 80m -10 / - R4AFR - / - 2 Partial capture
08-24 19:52 40m +7 / - R0LM - / -19 4 ✓ Closing fragment
08-03 20:42 40m -16 / - PP5AB - / -13 2 ✓ Closing fragment
08-03 20:39 40m -8 / - II3DRC - / -13 2 ✓ Closing fragment
08-03 20:37 40m - / -2 UA4FKT -2 / - 3 ✓ Closing fragment
08-03 20:36 40m -10 / -8 DK8HC -14 / - 3 ✓ Closing observed
08-03 20:34 40m -11 / - JA6RCH - / -19 3 ✓ Closing fragment
08-03 20:31 40m -10 / -5 DL7ACA -11 / -10 5 ✓ Full exchange observed
08-03 20:29 40m -13 / - F5PBG -18 / -14 3 ✓ Closing observed
08-03 20:28 40m -10 / -18 R2EA -7 / -8 5 ✓ Full exchange observed
08-03 20:27 40m -12 / - JE1LFX - / -10 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
203030  +7 2187  RA9ACA IZ5DKR JN53
203045  -6 1428  IZ5DKR RA9ACA -14 (x2)
203215 +11  941  BG5JGG IZ5DKR JN53 (x3)
203400  +8  941  BD8FOD IZ5DKR JN53 (x3)
203715  +8  941  VK4MA IZ5DKR JN53 (x3)
203915  +8 2217  VJ6X IZ5DKR JN53 (x3)
80m 
UTC    dB Audio  Message
202430  +9 1034  IZ5DKR DL3MIB JN57 (x5)
202715 -12 1421  DL3MIB IZ5DKR -02
202730  +9 1034  IZ5DKR DL3MIB R-18
202745  -9 1421  DL3MIB IZ5DKR RR73
202800  +9 1034  IZ5DKR DL3MIB 73
202845 -16 1421  G8BCG IZ5DKR JN53 (x3)
203000  -6 2294  IZ5DKR G8BCG -02 (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.

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