SH7KAT — 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: Sweden Most frequent locator attributed to this token: JO65

Receiver-side FT8 activity involving SH7KAT, decoded by SO8OO in southeastern Poland. 669 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 43 UTC dates in the available aggregate history. Observed between 2026-06-07 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 669 FT8 messages attributed to SH7KAT as the transmitting token by decoded message structure across 43 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (95%), followed by 20 m (5%). Most decodes (54%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

669
Messages attributed
43
UTC dates decoded
169
Active 15-min windows
-9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-22 06:20 UTC

Observed FT8 message patterns

Attributed sample
669 messages
Active dates
43 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-18 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 122, moderate (-15 to -9 dB) 243, strong (≥ -8 dB) 304.

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 SH7KAT

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
JO65 · 370 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
855 km (approx.)
Last such locator decoded
2026-10-22 06:20 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 UTCBandSH7KAT S/NCounterpartCounterpart S/NMsgsCapture
10-22 06:25 40m - / -10 I4BUQ -8 / - 4 ✓ Closing fragment
10-22 06:15 40m - / +1 F1PBZ -4 / - 2 ✓ Closing fragment
10-19 08:39 40m - / - ON7DE -20 / - 2 ✓ Closing fragment
10-17 17:33 40m - / - OK1LZI -8 / - 3 Partial capture
10-15 18:01 40m -16 / +1 R2ASY -8 / - 4 ✓ Closing observed
10-15 17:02 40m - / +4 LB7ZK -20 / - 2 Partial capture
10-15 16:53 40m -22 / -8 DM4ZUL +10 / +4 3 ✓ Full exchange observed
10-15 12:29 40m - / -6 OK8CZ -21 / - 3 ✓ Closing fragment
10-13 16:17 40m - / +9 F4MWH -4 / - 3 ✓ Closing fragment
10-13 16:13 40m - / -4 SM7HZK -3 / - 3 ✓ Closing fragment
10-13 16:07 40m - / -8 DG0MAN +1 / - 5 ✓ Closing fragment
10-13 16:07 40m - / - DL1HTW -2 / - 2 Partial capture
10-11 05:16 40m - / -4 IU2THY 0 / - 5 Partial capture
10-10 20:06 40m - / - EA1KCN -4 / - 3 Partial capture
10-10 19:05 40m - / - EA3FP -6 / - 2 ✓ Closing fragment
10-10 17:25 40m - / -13 F4MTT -12 / - 2 Partial capture
10-09 18:35 40m - / -2 DO7UFN -15 / - 7 Partial capture
10-09 18:32 40m - / - DO7UFN -13 / - 2 Partial capture
10-09 17:37 40m - / 0 YO6PNM +2 / - 3 ✓ Closing fragment
10-09 06:44 40m - / - SP9MOC +3 / - 9 Partial capture
10-08 14:02 40m - / - PI4IPA -22 / - 2 Partial capture
10-02 17:02 40m -20 / -9 RA3TKS -4 / - 3 ✓ Closing observed
10-02 07:44 40m - / -2 DG6CHI -10 / - 2 ✓ Closing fragment
10-02 07:39 40m -19 / - HB9ZHK - / 0 2 ✓ Closing fragment
10-02 07:39 40m - / - OE6TNO -2 / - 2 Partial capture
10-02 06:41 40m - / -11 IN3IZQ -20 / - 2 ✓ Closing fragment
10-01 18:50 40m -12 / -3 DK9EU 0 / -4 5 ✓ Full exchange observed
10-01 18:04 40m - / -7 OH5YZ -6 / - 2 ✓ Closing fragment
10-01 17:59 40m - / - DB5OET -12 / - 3 Partial capture
10-01 17:57 40m - / - DL8YBL -10 / - 2 Partial capture
10-01 17:34 40m - / -1 PA3GAE -2 / - 4 ✓ Closing fragment
10-01 17:02 40m - / +2 HB9ELE +10 / - 4 ✓ Closing fragment
09-28 15:50 40m - / -14 LB5AK -13 / - 2 ✓ Closing fragment
09-28 05:21 40m - / -15 F4DIA -17 / - 4 Partial capture
09-27 19:55 40m - / - U1BD -13 / - 3 Partial capture
09-26 07:55 40m - / - DG3YEV -7 / - 6 Partial capture
09-26 07:28 40m - / - I4BUQ -15 / - 4 Partial capture
09-25 14:58 40m - / -18 SP2IHI -2 / - 3 ✓ Closing fragment
09-25 13:42 40m - / - 9A1CCB +4 / - 4 Partial capture
09-25 13:12 40m - / -12 9A1CCB +1 / - 10 Partial capture
09-25 11:37 40m - / +10 DL3TC -9 / - 3 ✓ Closing fragment
09-25 11:24 40m - / -1 SP5BB -10 / - 2 ✓ Closing fragment
09-25 09:08 40m - / -12 SP7VCL -7 / - 10 Partial capture
09-24 15:23 40m - / - DF3IS -3 / - 2 Partial capture
09-22 09:44 40m - / - DD1JD -10 / - 3 ✓ Closing fragment
09-22 09:44 40m - / - PE2K -22 / - 4 ✓ Closing fragment
09-22 09:42 40m - / - DG3YEV -15 / - 2 Partial capture
09-22 08:48 40m - / +5 DF5DY -8 / - 3 ✓ Closing fragment
09-22 05:33 40m - / -9 RA4FEQ -4 / - 2 Partial capture
09-22 05:31 40m -4 / -14 YO2UKG +6 / - 3 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
173330  -8 1718  SH7KAT OK1LZI JO60 (x2)
175630 -23 1896  SH7KAT F3CJ R-06
175800 -17 1591  SH7KAT RV3DFC R-10
083945 -23 1785  SH7KAT ON7DE JO20 (x2)
173315 -17 1716  SH7KAT DC6MT R-19
061545  +1 2536  SH7KAT F1PBZ +01 (x2)
061930 -22 1715  CQ SH7KAT JO65                        a1 (x2)
062530  -9 1715  SH7KAT I4BUQ JN54 (x4)
20m
UTC    dB Audio  Message
160030 -10 1164  SH7KAT UI6O -16 (x7)
054100 +10  912  SH7KAT 5B4AMX -14 (x3)
054700 -13 1867  SH7KAT UA9CK MO09 (x2)
153030  -2 1620  SH7KAT EA2EWL -21 (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.

CW

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

Explore CW reception at SO8OO

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