SA7SVR — 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: JO77

Receiver-side FT8 activity involving SA7SVR, decoded by SO8OO in southeastern Poland. 25 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-28.

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 25 FT8 messages attributed to SA7SVR as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.

Overview

25
Messages attributed
1
UTC dates decoded
7
Active 15-min windows
-16 dB
Estimated median S/N

Bands

40m · 25
First attributed message: 2026-08-28
Last attributed message: 2026-08-28 22:08 UTC

Observed FT8 message patterns

Attributed sample
25 messages
Active dates
1 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-20 to -12 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 0.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SA7SVR in decoded directed-looking exchanges:

Most frequent locator attributed to SA7SVR

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
JO77 · 13 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
951 km (approx.)
Last such locator decoded
2026-08-28 21:09 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 UTCBandSA7SVR S/NCounterpartCounterpart S/NMsgsCapture
11-06 08:33 40m - / - DJ0MAB -6 / - 2 Partial capture
11-06 08:30 40m - / -7 PD7JLP -17 / - 3 ✓ Closing fragment
11-06 07:58 40m - / - DJ0MAB -13 / - 4 Partial capture
11-04 23:03 40m - / -14 EC3A -8 / - 4 ✓ Closing fragment
11-03 18:12 40m - / - PE1FWC -6 / - 8 Partial capture
11-03 18:03 40m - / - PD7BDN -6 / - 2 ✓ Closing fragment
11-03 18:01 40m - / - PH9OY -16 / - 3 Partial capture
11-03 17:27 40m - / - DK5EO -20 / - 2 Partial capture
11-03 09:17 40m - / - DK8HC -21 / - 3 Partial capture
11-02 21:14 40m - / - EA2DR -16 / - 2 ✓ Closing fragment
11-02 21:07 40m - / -12 EA2DR -16 / - 2 Partial capture
11-02 20:12 40m - / - F4LSG -9 / - 3 Partial capture
11-01 19:14 40m - / - DG5PW -20 / - 2 Partial capture
11-01 19:06 40m - / - DG5PW -14 / - 2 Partial capture
11-01 18:04 40m - / -20 9A6GUO -9 / - 6 Partial capture
11-01 17:38 40m - / -15 UA4FKT +5 / - 6 Partial capture
11-01 13:18 40m - / - DL6ZOG -4 / - 2 Partial capture
11-01 11:19 40m - / -15 PD2FS -15 / - 6 ✓ Closing fragment
11-01 09:00 40m - / - M7MJW -15 / - 3 Partial capture
10-31 14:33 40m - / -19 RG2V -15 / - 3 ✓ Closing fragment
10-31 14:27 40m - / -17 RG2V -11 / - 3 Partial capture
10-31 14:26 40m - / -17 RD5D -6 / - 3 ✓ Closing fragment
10-31 12:00 40m - / - ON3PDM -12 / - 3 Partial capture
10-31 11:58 40m - / -5 OZ5NJ -17 / - 3 ✓ Closing fragment
10-31 11:44 40m - / -9 DB2HA -1 / - 3 ✓ Closing fragment
10-31 11:43 40m - / -7 DL7ARV -4 / - 14 ✓ Closing fragment
10-31 11:40 40m - / -9 DA1ST -10 / - 2 Partial capture
10-31 11:39 40m - / -9 ES2AJ +4 / - 2 Partial capture
10-31 10:32 40m - / -18 G0RVY -15 / - 6 Partial capture
10-31 10:22 40m - / -3 OH3MB -12 / - 3 ✓ Closing fragment
10-31 10:19 40m - / -17 DK9NP -4 / - 13 Partial capture
10-31 10:03 40m - / -13 OZ9FF -8 / - 2 ✓ Closing fragment
10-31 08:35 40m - / -1 ES2IPA -13 / - 3 Partial capture
10-31 08:08 40m - / -19 F1RCQ -16 / - 4 Partial capture
10-31 08:06 40m - / - DJ0MAB -9 / - 2 Partial capture
10-31 08:05 40m - / -15 DL5BTE -9 / - 4 ✓ Closing fragment
10-29 21:32 40m - / -10 SV5BYP -6 / - 2 ✓ Closing fragment
10-29 18:47 40m - / - F4BYA +3 / - 4 Partial capture
10-29 18:35 40m - / - DF1WR -4 / - 2 Partial capture
10-29 18:32 40m - / -7 DL5DCN +7 / - 3 ✓ Closing fragment
10-29 18:23 40m - / - RX3ASQ -10 / - 2 Partial capture
10-29 18:18 40m - / -20 G4FHL -6 / - 5 ✓ Closing fragment
10-29 18:08 40m - / -20 PE1MMZ -1 / - 4 Partial capture
10-29 17:48 40m - / - ON7AC -11 / - 11 Partial capture
10-28 00:38 40m - / - RD6OZ +5 / - 4 Partial capture
10-28 00:27 40m - / - R4FDK -13 / - 4 Partial capture
10-26 19:50 40m - / - LZ2VQ -12 / - 3 Partial capture
10-26 19:41 40m - / - G7LHK +1 / - 7 Partial capture
10-24 20:36 40m - / -10 F1HSY -9 / - 3 ✓ Closing fragment
10-22 18:22 40m - / -20 M9NRS -3 / - 5 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
230415  -9 1761  SA7SVR EC3A RR73 (x2)
224615 -20 2044  SA7SVR DK8HC JO42
075500 -12 1637  SA7SVR SP1EG JO73
075815 -14 1520  SA7SVR DJ0MAB JN49 (x4)
083015 -19 1602  SA7SVR PD7JLP JO32 (x3)
083245  -5 2603  SA7SVR SP6TID JO81
083315  -7 2520  SA7SVR DJ0MAB JN49 (x2)
083915 -12 2019  SA7SVR YL3ATJ KO27
80m 
UTC    dB Audio  Message
211500 -24  400  SA7SVR ON3FM -18

CW

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

Explore CW reception at SO8OO

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