IZ5HEV — 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: JN53

Receiver-side FT8 activity involving IZ5HEV, decoded by SO8OO in southeastern Poland. 90 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 25 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-22.

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 90 FT8 messages attributed to IZ5HEV as the transmitting token by decoded message structure across 25 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (61%), followed by 10 m (27%) and 20 m (7%). Several six-hour UTC windows tied for the largest share (68%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (66%); the estimated median was -18 dB.

Overview

90
Messages attributed
25
UTC dates decoded
35
Active 15-min windows
-18 dB
Estimated median S/N

Bands

80m · 5 40m · 55 20m · 6 10m · 24
First attributed message: 2026-06-10
Last attributed message: 2026-10-22 05:51 UTC

Observed FT8 message patterns

Attributed sample
90 messages
Active dates
25 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-22 to -11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 59, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 4.

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 IZ5HEV 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 IZ5HEV

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 · 64 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,089 km (approx.)
Last such locator decoded
2026-10-22 05:50 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 UTCBandIZ5HEV S/NCounterpartCounterpart S/NMsgsCapture
10-22 05:50 40m -19 / - TO4A - / -22 3 ✓ Closing fragment
10-22 05:43 40m -22 / - CT7AXN - / - 2 Partial capture
10-22 05:39 40m -18 / -16 CT7AUT -15 / -6 5 ✓ Full exchange observed
10-21 10:10 40m - / - S53AK 0 / - 3 Partial capture
10-21 10:06 40m - / - YU7BW -13 / - 3 Partial capture
10-21 09:45 40m - / - DB2HA -14 / - 2 Partial capture
10-21 09:45 40m - / -8 S53AK -3 / - 5 Partial capture
10-14 06:09 40m - / -6 SP3IPA -4 / - 2 ✓ Closing fragment
10-06 05:56 40m -16 / - PA3GCU - / -6 2 Partial capture
10-04 05:59 40m - / -13 PI4DX 0 / - 3 ✓ Closing fragment
09-30 14:25 40m - / -3 OE3FVU -10 / - 2 ✓ Closing fragment
09-30 14:22 40m - / -1 9A3AUH +6 / - 2 ✓ Closing fragment
09-30 05:24 40m - / - F4IIX -12 / - 4 Partial capture
09-30 05:24 40m - / -18 YO4GIY -13 / - 4 ✓ Closing fragment
09-30 05:22 40m - / -14 LA3BO -2 / - 2 ✓ Closing fragment
09-28 04:32 40m -15 / - SP7SZJ - / +2 3 ✓ Closing fragment
09-19 06:25 40m - / -10 HA1BF +3 / - 2 ✓ Closing fragment
09-18 04:55 40m - / -20 UR4QWW -8 / - 10 Partial capture
09-18 04:51 40m -14 / - HC2GRC - / - 2 Partial capture
09-15 05:36 60m - / -6 DK2MAX +4 / - 4 Partial capture
09-11 06:16 40m -21 / - UB3BDJ/6 - / -8 2 Partial capture
09-06 06:02 40m - / -3 Z62NS -6 / - 4 ✓ Closing fragment
08-31 05:10 40m -14 / - <...> - / - 2 Partial capture
08-31 04:50 40m -12 / - <...> - / - 5 Partial capture
08-28 10:10 10m -18 / - BG6GQE - / - 2 Partial capture
08-28 10:07 10m -19 / - JA5QJD - / -4 3 ✓ Closing fragment
08-12 08:21 10m -19 / - R50RKZ - / - 3 Partial capture
08-04 05:15 40m - / -24 UA4FKT -19 / - 3 ✓ Closing fragment
07-30 02:43 40m -24 / - SA4AGM - / -14 2 ✓ Closing fragment
07-28 04:43 40m - / -11 EU4U -5 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
101115  +3  846  IZ5HEV S53AK JN76
143145 -18 1440  CQ CQ IZ5HEV JN53
052845 -22 1440  TO4A IZ5HEV JN53
053545 -22 1441  R7CA/6 IZ5HEV JN53
053715 -18 1440  TO4A IZ5HEV JN53
053930 -17 1457  IZ5HEV CT7AUT -16
053945 -18 1441  CT7AUT IZ5HEV R-06
054000 -17 1457  IZ5HEV CT7AUT -16 (x2)
054045 -17 1440  CT7AUT IZ5HEV 73
054345 -21 1440  CT7AXN IZ5HEV JN53 (x2)
055015 -22 1440  TO4A IZ5HEV JN53 (x3)
60m 
UTC    dB Audio  Message
053645  +2 2686  IZ5HEV DK2MAX -06 (x4)
20m 
UTC    dB Audio  Message
102345  +0 1378  <...> IZ5HEV JN53
050530 -22 1378  UD8S IZ5HEV 73
10m 
UTC    dB Audio  Message
082145 -19 1382  R50RKZ IZ5HEV JN53 (x3)
100700 -19 1382  BG6GQE IZ5HEV JN53
100730 -19 1382  JA5QJD IZ5HEV JN53 (x3)
101030 -18 1382  BG6GQE IZ5HEV JN53 (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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