IZ4AFM — 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: JN64

Receiver-side FT8 activity involving IZ4AFM, decoded by SO8OO in southeastern Poland. 904 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 71 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-04.

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 904 FT8 messages attributed to IZ4AFM as the transmitting token by decoded message structure across 71 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 20 m (44%) and 10 m (5%). Most decodes (53%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (88%); the estimated median was +3 dB.

Overview

904
Messages attributed
71
UTC dates decoded
190
Active 15-min windows
+3 dB
Estimated median S/N

Bands

40m · 455 20m · 400 10m · 49
First attributed message: 2026-06-06
Last attributed message: 2026-11-04 23:45 UTC

Observed FT8 message patterns

Attributed sample
904 messages
Active dates
71 UTC dates
Estimated median S/N
+3 dB
Estimated 10th-90th percentile
-10 to +16 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 90, strong (≥ -8 dB) 791.

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 IZ4AFM 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 IZ4AFM

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
JN64 · 267 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
897 km (approx.)
Last such locator decoded
2026-11-04 23:45 UTC

Other locator fields attributed to this token: IN64 (2).

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 UTCBandIZ4AFM S/NCounterpartCounterpart S/NMsgsCapture
11-04 23:44 40m +4 / - W3DVX - / - 2 Partial capture
11-04 23:42 40m -2 / - 5R8IC - / -20 3 ✓ Closing fragment
11-04 23:40 40m 0 / - BA8BLK - / -12 2 ✓ Closing fragment
11-04 23:39 40m -6 / - KN1B - / -11 2 ✓ Closing fragment
11-04 23:33 40m -11 / - WA4CAS - / -12 4 ✓ Closing fragment
11-04 23:33 40m - / - DH2NJS -10 / - 6 Partial capture
11-04 23:31 40m +4 / - N8UVM - / -16 3 ✓ Closing fragment
11-04 23:29 40m +4 / - WI9Z - / -11 2 ✓ Closing fragment
11-04 23:26 40m +12 / - M7LYG - / -10 2 ✓ Closing fragment
11-04 23:24 40m +8 / - KZ4ZZ - / - 2 Partial capture
11-04 23:21 40m +8 / - NZ3C - / - 2 Partial capture
11-04 23:16 40m +2 / - K4PWM - / - 2 Partial capture
10-31 17:11 40m -4 / - AP2AM - / -19 4 ✓ Closing fragment
10-27 17:17 40m +9 / - VJ6X - / -16 3 ✓ Closing fragment
10-18 13:21 10m - / - DO3HCS -17 / - 4 Partial capture
10-13 22:37 40m - / -9 R3KSJ -18 / - 2 Partial capture
10-13 22:34 40m -12 / +5 VO1HH -8 / - 5 ✓ Closing observed
10-12 22:34 40m 0 / - N1EN - / -10 2 ✓ Closing fragment
10-12 22:32 40m +2 / - CX1UI - / -14 2 ✓ Closing fragment
10-12 22:30 40m - / -14 IK4TVP -18 / - 4 Partial capture
10-12 22:29 40m +1 / -14 VP2MAA -10 / -7 4 ✓ Full exchange observed
10-12 22:27 40m +2 / - KD3DIX - / - 2 Partial capture
10-09 19:26 40m -9 / - VK3AMP - / - 2 Partial capture
10-09 19:20 40m +23 / - SV9AUP - / -14 2 ✓ Closing fragment
10-06 21:53 40m -1 / - N1EDF - / - 3 Partial capture
10-05 22:15 40m +7 / - SP9JCN - / -9 2 ✓ Closing fragment
10-04 22:16 40m +19 / - FG4AO - / -16 7 Partial capture
10-04 14:04 10m - / -7 CR7BUJ -18 / - 4 Partial capture
10-03 22:49 40m - / - UR9QQ -16 / - 4 Partial capture
10-03 19:47 40m +16 / - V51WH - / - 4 Partial capture
10-03 14:19 10m - / -6 D2ACE -16 / - 2 ✓ Closing fragment
10-01 20:58 40m +6 / - BA3QIQ - / -16 2 ✓ Closing fragment
10-01 20:54 40m +19 / - HS0ZOY - / -14 4 ✓ Closing fragment
10-01 20:52 40m +14 / - JA4JKO - / -15 3 ✓ Closing fragment
10-01 20:51 40m - / - EB3JT -8 / - 2 Partial capture
10-01 20:50 40m +14 / - PY5QW -11 / -5 4 ✓ Closing observed
10-01 20:44 40m +13 / - HL2CFY - / -8 3 ✓ Closing fragment
09-29 21:43 40m +16 / - 4U1UN - / -18 10 ✓ Closing fragment
09-24 22:22 40m +9 / - N8UW - / -11 3 ✓ Closing fragment
09-24 22:17 40m +8 / - BH4GUU - / -8 4 ✓ Closing fragment
09-24 22:12 40m +13 / - KA3FMO - / -21 3 ✓ Closing fragment
09-24 22:11 40m - / - DL3MIB +9 / - 7 Partial capture
09-24 22:10 40m +14 / +4 G0RVY 0 / -4 3 ✓ Full exchange observed
09-24 22:08 40m +7 / - W1XI - / -16 3 ✓ Closing fragment
09-24 22:06 40m +17 / - VA3WW - / - 2 Partial capture
09-17 22:49 40m -18 / - KF9UG - / -24 2 Partial capture
09-17 22:47 40m - / -17 EC3A -14 / - 2 Partial capture
09-17 22:45 40m -16 / - CT3IQ - / - 2 Partial capture
09-17 22:41 40m -16 / - K8OCN - / -16 2 ✓ Closing fragment
09-17 22:38 40m -18 / - ON1JP - / -12 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
233500  -9  678  IZ4AFM DH2NJS JO50
233515 -10 1680  WA4CAS IZ4AFM 73
233700  -9  678  IZ4AFM DH2NJS JO50 (x2)
233745  -5 2290  KQ4IJI IZ4AFM JN64
233915  -9 1293  KN1B IZ4AFM R-11 (x2)
234045  -3  751  BA8BLK IZ4AFM -12 (x2)
234215  -3 2494  5R8IC IZ4AFM JN64 (x3)
234400 -13 2499  IZ4AFM RX9WM LO74
234415  +5 2685  W3DVX IZ4AFM JN64 (x2)
10m 
UTC    dB Audio  Message
120930  -9 1701  IZ4AFM EX7CQ +06
141900 -15 2293  IZ4AFM D2ACE -06 (x2)
140400 -18 1196  IZ4AFM CR7BUJ -07 (x4)
132130 -17 1365  IZ4AFM DO3HCS JO52 (x4)
134315  -7  722  K1BX IZ4AFM JN64
20m 
UTC    dB Audio  Message
225915  +1  467  BA3QIQ IZ4AFM RR73
225930  -3  467  IZ4AFM KJ1R FN32
225945  +2  467  KJ1R IZ4AFM -20 (x2)
230115  +9  467  CQ IZ4AFM JN64
230130  -6  465  IZ4AFM WB8YJF -05
230145  +0  467  WB8YJF IZ4AFM R-09
230200  -5  467  IZ4AFM WB8YJF RR73
230215  +1  467  WB8YJF IZ4AFM 73
075600 +17  393  VK3EVE IZ4AFM JN64
211915 -15 2283  IZ4AFM KB3Z FN20 (x3)
071115  +7  306  VK5PJ IZ4AFM JN64 (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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