SM7WNM — 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: JO66

Receiver-side FT8 activity involving SM7WNM, decoded by SO8OO in southeastern Poland. 2,015 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 71 UTC dates in the available aggregate history. Observed between 2026-07-07 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 2,015 FT8 messages attributed to SM7WNM as the transmitting token by decoded message structure across 71 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (62%), followed by 40 m (21%) and 60 m (16%). Most decodes (69%) fell within the six-hour window 01:00-07:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11.6 dB.

Overview

2,015
Messages attributed
71
UTC dates decoded
301
Active 15-min windows
-11.6 dB
Estimated median S/N

Bands

First attributed message: 2026-07-07
Last attributed message: 2026-11-04 05:44 UTC

Observed FT8 message patterns

Attributed sample
2,015 messages
Active dates
71 UTC dates
Estimated median S/N
-11.6 dB
Estimated 10th-90th percentile
-19.1 to -1.9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 543, moderate (-15 to -9 dB) 791, strong (≥ -8 dB) 681.

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 SM7WNM

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
JO66 · 556 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
934 km (approx.)
Last such locator decoded
2026-11-04 05:43 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 UTCBandSM7WNM S/NCounterpartCounterpart S/NMsgsCapture
11-06 06:10 40m - / -2 SP7SZJ -6 / - 2 ✓ Closing fragment
11-06 05:39 40m - / -16 EA9QD -8 / - 2 ✓ Closing fragment
11-05 22:33 40m - / - DH7ZP -5 / - 2 ✓ Closing fragment
11-05 22:28 40m - / - DH7ZP -8 / - 2 Partial capture
11-05 22:27 40m - / -4 ON3MOH -2 / - 3 ✓ Closing fragment
11-05 22:25 40m - / -5 EA1KCU +4 / - 2 ✓ Closing fragment
11-04 05:43 80m -6 / - SP9UOP +15 / -4 3 ✓ Closing observed
11-04 05:41 80m -2 / - SP2DW - / -3 2 Partial capture
11-04 05:16 80m 0 / - F1TFT -2 / -2 4 ✓ Closing observed
11-04 05:15 80m -4 / -5 YU0U +8 / -7 4 ✓ Full exchange observed
11-04 05:12 80m -8 / - W3UA - / -12 2 Partial capture
11-04 05:08 80m -7 / -5 DG1YHP -4 / -7 3 ✓ Full exchange observed
11-04 04:58 80m - / - ON3CCM -12 / - 2 Partial capture
11-04 04:54 80m - / -10 SV2AOB -10 / - 2 Partial capture
11-04 04:50 80m -8 / - OK4KOP - / -2 2 ✓ Closing fragment
11-04 04:49 80m - / -4 LZ1ZF +8 / - 3 ✓ Closing fragment
11-04 04:47 80m -16 / - EA8UE - / -14 3 Partial capture
11-04 04:43 80m -8 / -10 G7RHF -5 / - 3 ✓ Closing observed
11-04 04:41 80m -9 / -16 R2SDZ +6 / +1 3 ✓ Full exchange observed
11-04 04:40 80m -8 / -3 LY5A -6 / -1 4 ✓ Full exchange observed
11-04 04:38 80m -9 / -10 T77RN -10 / -21 5 ✓ Full exchange observed
11-04 04:35 80m -11 / -14 CT7BRV -10 / -11 4 ✓ Full exchange observed
11-04 04:32 80m -8 / -13 4O7CC +12 / -8 4 ✓ Full exchange observed
11-03 16:08 40m - / 0 OH3SW -4 / - 2 ✓ Closing fragment
11-03 16:05 40m - / -8 IK4ICS -6 / - 2 ✓ Closing fragment
11-03 16:00 40m - / - DL3FSC +4 / - 2 ✓ Closing fragment
11-03 15:56 40m - / -2 DL3ND -11 / - 4 ✓ Closing fragment
11-03 05:39 80m - / -12 F4HQB +2 / - 2 ✓ Closing fragment
11-03 00:21 80m -11 / -19 M8IFY -6 / - 3 ✓ Closing observed
11-03 00:14 80m - / -4 HA3FMR +6 / - 3 ✓ Closing fragment
11-03 00:09 80m -14 / +2 ON4MAP -8 / -11 5 ✓ Full exchange observed
11-03 00:05 80m -15 / - UC8U - / -12 3 Partial capture
11-03 00:02 80m -7 / -9 M9XPN -12 / -16 5 ✓ Full exchange observed
11-03 00:01 80m -9 / - OH4LRP - / -19 2 ✓ Closing fragment
11-02 23:58 80m -8 / -13 LZ911TD -10 / -10 3 Partial capture
11-02 23:55 80m -13 / - RK9UN - / -8 2 Partial capture
11-02 23:54 80m -13 / -5 DK7JR -4 / - 2 ✓ Closing observed
11-02 23:52 80m - / -13 YU6DX +6 / - 2 ✓ Closing fragment
11-02 23:44 40m - / -11 EA1Y -14 / - 2 ✓ Closing fragment
11-02 16:29 40m - / -8 DM1SV +6 / - 2 ✓ Closing fragment
11-02 16:23 40m - / -14 G7RCQ -15 / - 3 ✓ Closing fragment
11-02 15:51 60m - / -2 OE6HWF -8 / - 2 Partial capture
11-02 15:50 60m - / +6 S57MPU +7 / - 2 ✓ Closing fragment
11-02 15:46 80m - / - DK5LQ 0 / - 2 ✓ Closing fragment
11-02 15:32 40m - / -4 OH5KNL -6 / - 2 ✓ Closing fragment
11-02 15:28 40m - / -22 RJ3DC -10 / - 3 ✓ Closing fragment
11-02 15:22 40m - / -7 ON6WDL +12 / - 2 ✓ Closing fragment
11-02 15:14 40m - / 0 HA3HZ -6 / - 2 Partial capture
11-02 07:57 40m - / -1 DM9YL -11 / - 4 Partial capture
11-01 07:46 40m -20 / +6 M7KEV -16 / -5 3 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
222700  +4 1064  SM7WNM ON3MOH JO10 (x3)
222830  -7 1064  SM7WNM DH7ZP JO40 (x4)
053900  -5  481  SM7WNM EA9QD R-16 (x2)
055300 -12 2454  SM7WNM IR0PG 73
060400 -18 1870  SM7WNM LA8ENA R+03
060600  +0 2054  SM7WNM IK2TCV R-14
061000  -5 1694  SM7WNM SP7SZJ R-02 (x2)
061500 -11 2636  SM7WNM OH6IH R-12
80m
UTC    dB Audio  Message
051630  -5 1028  F1TFT SM7WNM -02
051700  -7 1028  CQ SM7WNM JO66
051730  -7 1028  IT9IRL SM7WNM -14
051800  -6 1028  CQ SM7WNM JO66
051830  -4 1028  F1TFT SM7WNM -05 (x2)
051915  -2 1737  SM7WNM F1TFT 73
052000  +0 1028  ES6DO SM7WNM +02
054130  -4 1028  SP2DW SM7WNM -03 (x2)
054230  -3 1028  CQ SM7WNM JO66 (x2)
054330  -7 1028  SP9UOP SM7WNM -04 (x2)
054415 +15 1723  SM7WNM SP9UOP 73
60m
UTC    dB Audio  Message
061130 -24 1359  PA1AW SM7WNM -02
061200 -22 1359  HB9IOB SM7WNM -09
061330 -19 1358  F5PAC SM7WNM -01
061345  +8 1231  SM7WNM F5PAC RR73
061815 -19 1359  IN3IZQ SM7WNM -10
061845 -17 1358  CQ SM7WNM JO66 (x2)
061930  +9 2584  SM7WNM DC6MY JN58
061945 -13 1358  DC6MY SM7WNM -02
062000  +6 2584  SM7WNM DC6MY R-07 (x2)
155030  +6 2644  SM7WNM S57MPU R+06 (x2)
155130  -9 1422  SM7WNM OE6HWF JN67 (x2)
10m
UTC    dB Audio  Message
122430 -18 1234  SM7WNM CR7BUJ R-02 (x2)
123000  +4  481  SM7WNM CT2KCK R+08 (x2)
123200 -20 1474  SM7WNM CT7AUT R-10
20m
UTC    dB Audio  Message
114230 -11  929  SM7WNM IU8WRA JM89
061715  +4  587  SM7WNM RZ7KR R-06
063215  -7 2968  SM7WNM IW5ALZ JN53 (x3)
065245 -21 2942  SM7WNM EC3CVD 73
072445  -2 1298  SM7WNM IU3BIX JN65 (x4)
072715  -2  463  SM7WNM IK4LZH JN54
072745  +6 1298  SM7WNM IU3BIX 73
072745  +2  464  SM7WNM IK4LZH JN54 (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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