K1ZZ — 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: United States Most frequent locator attributed to this token: FN31

Receiver-side FT8 activity involving K1ZZ, decoded by SO8OO in southeastern Poland. 501 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 23 UTC dates in the available aggregate history. Observed between 2026-08-03 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 501 FT8 messages attributed to K1ZZ as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (63%), followed by 80 m (36%) and 160 m (1%). Most decodes (100%) 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 -8 dB.

Overview

501
Messages attributed
23
UTC dates decoded
53
Active 15-min windows
-8 dB
Estimated median S/N

Bands

First attributed message: 2026-08-03
Last attributed message: 2026-11-04 01:40 UTC

Observed FT8 message patterns

Attributed sample
501 messages
Active dates
23 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-17 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 72, moderate (-15 to -9 dB) 167, strong (≥ -8 dB) 262.

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.

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 K1ZZ

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
FN31 · 108 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
6,913 km (approx.)
Last such locator decoded
2026-11-04 01:40 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 UTCBandK1ZZ S/NCounterpartCounterpart S/NMsgsCapture
11-04 23:04 160m - / -19 SM3EVR +4 / - 4 ✓ Closing fragment
11-04 23:03 160m - / - M0HJJ -12 / - 7 Partial capture
11-04 23:02 160m - / - SP/DL5DBO +6 / - 2 Partial capture
11-04 23:00 160m - / -18 F5BZB -3 / - 5 ✓ Closing fragment
11-04 23:00 160m - / -26 SV8CKM +3 / - 4 Partial capture
11-04 22:58 160m - / -15 DJ7WG +5 / - 2 ✓ Closing fragment
11-04 01:38 80m -24 / - PI40EUDXF - / -1 5 Partial capture
11-04 01:32 80m -24 / - UA9XL/P - / -1 2 Partial capture
11-04 00:37 80m - / -11 OK1AMF +7 / - 2 ✓ Closing fragment
11-04 00:37 80m - / - R3UG -2 / - 7 Partial capture
11-04 00:35 80m - / 0 OH7MA +9 / - 6 ✓ Closing fragment
11-04 00:33 80m - / -7 EA4D -14 / - 2 ✓ Closing fragment
11-04 00:33 80m - / -20 R5DK 0 / - 7 Partial capture
11-04 00:31 80m - / 0 EB7BXN -15 / - 3 ✓ Closing fragment
11-04 00:30 80m - / -6 IK4TVP -8 / - 2 ✓ Closing fragment
11-04 00:29 80m - / -3 DA6SL -16 / - 3 ✓ Closing fragment
10-30 00:20 160m - / - YO9BXE -4 / - 2 Partial capture
10-30 00:12 160m - / -10 IZ8VYU -2 / - 3 ✓ Closing fragment
10-30 00:11 160m -20 / -21 DB8WK +1 / -24 15 Partial capture
10-30 00:07 160m - / -11 DF2GH +15 / - 3 ✓ Closing fragment
10-30 00:06 160m - / -20 IW4AOT +3 / - 3 Partial capture
10-30 00:06 160m -17 / -25 DK9WI -11 / -15 12 Partial capture
10-30 00:04 160m - / -16 OK2AB -3 / - 10 Partial capture
10-30 00:03 160m - / - DF2GH +12 / - 2 Partial capture
10-30 00:03 160m - / -24 ON5UE -9 / - 7 ✓ Closing fragment
10-30 00:02 160m - / -18 IW4AOT +8 / - 3 Partial capture
10-30 00:01 160m - / -14 SV9CVY +20 / - 3 ✓ Closing fragment
10-29 22:18 80m - / -9 EA5ET -10 / - 4 ✓ Closing fragment
10-29 22:15 80m - / - UA3GX -14 / - 3 Partial capture
10-29 22:13 80m -18 / - EX7DY - / - 3 Partial capture
10-29 22:06 80m -23 / - EX7DY - / - 2 Partial capture
10-27 23:54 80m - / -20 DO2FRE -5 / - 6 Partial capture
10-27 23:53 80m - / - EA3CCI -13 / - 3 Partial capture
10-27 23:53 80m - / -12 EA3FCQ -4 / - 4 ✓ Closing fragment
10-27 23:51 80m -7 / - SP7ENW 0 / -14 4 ✓ Closing observed
10-27 23:51 80m -7 / -14 SV8TCP -12 / -25 5 ✓ Full exchange observed
10-27 23:49 80m - / - EA3FCQ +4 / - 2 Partial capture
10-27 23:48 80m -14 / -21 M9DNC -16 / -14 6 ✓ Full exchange observed
10-27 23:47 80m -15 / -20 9A5SPC 0 / -21 8 ✓ Full exchange observed
10-27 23:46 80m -10 / -3 TA1MB -11 / -21 7 ✓ Full exchange observed
10-27 00:07 80m - / - DL7ACA +20 / - 3 Partial capture
10-27 00:07 80m -13 / - KM4RL - / -3 2 ✓ Closing fragment
10-27 00:07 80m - / -17 S55P 0 / - 2 Partial capture
10-27 00:05 80m -11 / -6 EW4DX 0 / -16 9 ✓ Full exchange observed
10-27 00:02 80m -12 / -17 4O7CC +6 / - 5 ✓ Closing observed
10-16 21:49 40m - / - SP6SR -11 / - 2 Partial capture
10-16 21:47 40m -8 / - UW8SM - / -2 3 ✓ Closing fragment
10-16 21:46 40m - / - LZ4VR -8 / - 2 Partial capture
10-16 21:45 40m -10 / - UR9QQ - / -17 2 ✓ Closing fragment
10-16 21:44 40m -6 / +6 DJ3HW -10 / -7 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
230215  -3  753  K1ZZ F5BZB -18
230245  +6 1952  K1ZZ SP/DL5DBO
230345 -14 1070  K1ZZ M0HJJ IO91
230345  -4  753  K1ZZ F5BZB R-14
230415 -12 1071  K1ZZ M0HJJ IO91
230415  +0  753  K1ZZ F5BZB 73
230445  +1 1866  K1ZZ SM3EVR JP82 (x2)
230515 -15 1071  K1ZZ M0HJJ IO91
230545  +7 1866  K1ZZ SM3EVR R-19
230545 -11 1071  K1ZZ M0HJJ IO91
230615  +6 1866  K1ZZ SM3EVR 73
230615 -12 1071  K1ZZ M0HJJ IO91 (x3)
80m
UTC    dB Audio  Message
003830  +4  318  K1ZZ R3UG KO98
003830 +13 2320  K1ZZ OH7MA 73
003900  +0  318  K1ZZ R3UG KO98
003900 +11 1329  K1ZZ OK1AMF RR73
003930  -5  318  K1ZZ R3UG KO98 (x3)
012700 -19  615  K1ZZ 6W/IK2HKT -10
013215 -24 1356  UA9XL/P K1ZZ R-01 (x2)
013845 -24 1209  PI40EUDXF K1ZZ R-01 (x5)
40m
UTC    dB Audio  Message
214400  -9 1772  K1ZZ RZ4FWA LO23
214400 -11  850  K1ZZ DJ3HW JO42
214415  -7 1374  DJ3HW K1ZZ -07
214430 -10  850  K1ZZ DJ3HW R+06
214445  -6 1373  DJ3HW K1ZZ RR73
214500  -9  850  K1ZZ DJ3HW 73
214545 -14 1373  UR9QQ K1ZZ -17
214600  -8 1258  K1ZZ LZ4VR KN13
214615  -7 1374  UR9QQ K1ZZ RR73
214630  -8 1258  K1ZZ LZ4VR KN13
214745  -8 1374  UW8SM K1ZZ -02 (x3)
214900 -13  527  K1ZZ SP6SR JO81 (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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