SM5TAF — 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: JO89

Receiver-side FT8 activity involving SM5TAF, decoded by SO8OO in southeastern Poland. 63 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-28.

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 63 FT8 messages attributed to SM5TAF as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (63%), followed by 40 m (27%) and 80 m (8%). Several six-hour UTC windows tied for the largest share (94%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

63
Messages attributed
11
UTC dates decoded
19
Active 15-min windows
-12 dB
Estimated median S/N

Bands

80m · 5 60m · 40 40m · 17 10m · 1
First attributed message: 2026-06-11
Last attributed message: 2026-09-28 14:28 UTC

Observed FT8 message patterns

Attributed sample
63 messages
Active dates
11 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-19 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 17.

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 SM5TAF 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 SM5TAF

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
JO89 · 25 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,106 km (approx.)
Last such locator decoded
2026-09-28 14:26 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 UTCBandSM5TAF S/NCounterpartCounterpart S/NMsgsCapture
10-10 18:10 60m - / -9 DK2MAX -7 / - 9 ✓ Closing fragment
09-28 14:29 40m - / - PD0IFI -2 / - 5 Partial capture
09-28 14:26 40m -9 / -10 SP100PKP -3 / +3 5 Partial capture
09-28 14:20 40m - / 0 PD0IFI -11 / - 8 Partial capture
09-28 14:09 40m -19 / -14 DC1SN -8 / -6 5 ✓ Full exchange observed
09-24 19:22 60m -18 / -17 IK4CBO -7 / +7 6 ✓ Full exchange observed
09-24 19:20 60m -14 / 0 SP1RKT -13 / +4 5 ✓ Full exchange observed
09-24 19:12 40m -13 / - GM0RAY - / -10 2 Partial capture
09-09 19:35 60m -12 / -10 SQ9OKJ +4 / - 5 ✓ Full exchange observed
09-08 18:35 80m - / - DK7UY +10 / - 2 Partial capture
09-05 18:08 60m -7 / -11 G4RRX -11 / -12 10 ✓ Full exchange observed
09-05 18:01 60m -1 / -9 LA1K/P -8 / -2 5 ✓ Full exchange observed
09-05 17:41 60m -12 / -1 LA1QRO -10 / - 4 ✓ Full exchange observed
09-05 17:38 60m -14 / -13 ER3UA -6 / -7 3 ✓ Full exchange observed
09-05 17:36 60m -11 / -12 LA2W/P -4 / - 4 ✓ Full exchange observed
09-05 17:33 60m -11 / - F4BPO -9 / -14 3 Partial capture
09-05 17:32 60m -20 / -25 LA4O -14 / - 4 ✓ Full exchange observed
08-31 20:30 60m -16 / - ON7PM - / - 2 ✓ Closing fragment
08-31 20:28 60m -11 / -8 OM5CM -11 / +3 6 ✓ Full exchange observed
08-31 20:26 60m -7 / -8 DL3RDO -3 / +3 6 ✓ Full exchange observed
08-31 20:25 60m -10 / -16 IK3MLF -12 / -12 4 ✓ Full exchange observed
08-31 20:23 60m - / 0 SP5MXZ +6 / - 2 ✓ Closing fragment
08-23 20:31 160m - / -15 LA1PHA -11 / - 2 ✓ Closing fragment
08-12 21:00 10m - / -2 DN9CHV -5 / - 8 ✓ Closing fragment
08-12 20:57 10m - / 0 DH7ZP -2 / - 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
192200  -6 1831  SM5TAF IK4CBO JN54 (x2)
192245 -19 2082  IK4CBO SM5TAF +07
192300  -8 1831  SM5TAF IK4CBO R-17
192315 -16 2082  IK4CBO SM5TAF RR73
192330  -7 1831  SM5TAF IK4CBO 73
181015  -1  947  SM5TAF DK2MAX JN58 (x9)
40m 
UTC    dB Audio  Message
142200 -10 1394  SM5TAF PD0IFI R+00 (x5)
142615  -8  789  SP100PKP SM5TAF JO89
142630  -5  789  SM5TAF SP100PKP -10 (x3)
142815 -10  789  SP100PKP SM5TAF R+03
142900  +3 2726  SM5TAF PD0IFI JO32 (x5)
80m 
UTC    dB Audio  Message
183515  +8 2372  SM5TAF DK7UY JO44 (x2)
160m 
UTC    dB Audio  Message
203145 -13 2235  SM5TAF LA1PHA -15 (x2)
10m 
UTC    dB Audio  Message
205745  -4 2082  SM5TAF DH7ZP JO40 (x4)
205945  -9  384  SM5TAF DG7DBM JO31
210030 -10 1372  SM5TAF DN9CHV JO31 (x8)
210500  -3 2952  SM5TAF DO1FDK JO41

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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