SM6XVI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Most frequent locator attributed to this token: JO66

Receiver-side FT8 activity involving SM6XVI, decoded by SO8OO in southeastern Poland. 221 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 11 UTC dates in the available aggregate history. Observed between 2026-09-07 and 2026-09-17.

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 221 FT8 messages attributed to SM6XVI 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 (95%), followed by 40 m (3%) and 80 m (2%). Several six-hour UTC windows tied for the largest share (99%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (75%); the estimated median was -12 dB.

Overview

221
Messages attributed
11
UTC dates decoded
34
Active 15-min windows
-12 dB
Estimated median S/N

Bands

80m · 4 60m · 210 40m · 7
First attributed message: 2026-09-07
Last attributed message: 2026-09-17 18:57 UTC

Observed FT8 message patterns

Attributed sample
221 messages
Active dates
11 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-15 to -8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 165, strong (≥ -8 dB) 40.

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 SM6XVI 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 SM6XVI

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 · 87 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
934 km (approx.)
Last such locator decoded
2026-09-17 18:50 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 UTCBandSM6XVI S/NCounterpartCounterpart S/NMsgsCapture
09-18 09:14 40m - / -22 HA1BF -4 / - 2 ✓ Closing fragment
09-18 09:13 40m - / -8 OK3MB -10 / - 3 ✓ Closing fragment
09-17 18:56 60m -6 / - OH5KNL 0 / - 3 ✓ Closing observed
09-17 18:52 60m - / -9 PE1RLY +2 / - 2 ✓ Closing fragment
09-17 18:50 60m -16 / 0 LY2SA +2 / - 4 ✓ Closing observed
09-17 18:45 60m -14 / +5 OZ0A +10 / - 4 ✓ Full exchange observed
09-17 18:42 60m -12 / +8 ON4MGV -13 / +5 4 ✓ Full exchange observed
09-17 18:42 60m -14 / 0 SP5MXY -8 / -2 6 ✓ Full exchange observed
09-17 18:41 60m -8 / - SA6DST -8 / +5 5 ✓ Full exchange observed
09-17 18:39 60m -8 / +3 DL8MKG +5 / - 5 ✓ Full exchange observed
09-17 17:33 60m -13 / - PD1CBH - / - 2 Partial capture
09-17 17:30 60m -12 / +6 OM5ZW +8 / - 4 ✓ Full exchange observed
09-17 17:27 60m -12 / +4 DK2YCT -13 / - 5 ✓ Full exchange observed
09-17 17:25 60m -12 / -12 SM2OTU -14 / +2 5 ✓ Full exchange observed
09-17 17:23 60m -14 / -10 SP4NKJ +5 / - 4 ✓ Full exchange observed
09-17 07:31 40m - / - ON5RZ -3 / - 8 ✓ Closing fragment
09-17 07:27 40m - / -13 PA3EVY -10 / - 2 ✓ Closing fragment
09-16 18:51 60m -14 / -6 3Z0L 0 / - 5 ✓ Closing observed
09-16 18:50 60m -12 / - OZ5VO - / -3 3 ✓ Closing fragment
09-16 18:48 60m -14 / -14 SP3SWJ -6 / -7 5 ✓ Full exchange observed
09-16 18:46 60m -12 / -8 IK4CBO -13 / +3 4 ✓ Full exchange observed
09-16 18:45 60m -11 / -14 HA5CPN -3 / -17 5 ✓ Full exchange observed
09-16 18:44 60m -13 / - M0SSK - / -3 3 ✓ Closing fragment
09-16 18:39 60m -11 / -11 HF5A +6 / - 5 ✓ Closing observed
09-16 18:39 60m -13 / -9 SQ9BC -4 / -2 5 ✓ Full exchange observed
09-16 18:36 60m -14 / - DL2EMS - / -6 2 Partial capture
09-16 18:32 60m - / 0 IV3DSG +4 / - 2 ✓ Closing fragment
09-16 18:27 60m -14 / - G0IOW - / -12 2 ✓ Closing fragment
09-16 18:25 60m -13 / +6 DL1UDO -8 / +8 5 ✓ Full exchange observed
09-16 18:23 60m -13 / +4 OK1JPO -20 / -9 5 ✓ Full exchange observed
09-16 18:16 60m -14 / -17 YT2ZE +4 / -3 4 ✓ Full exchange observed
09-16 18:12 60m -8 / -16 OM3PR +1 / - 4 ✓ Closing observed
09-16 18:12 60m -9 / - EA3HMM - / -11 2 Partial capture
09-16 18:10 60m -8 / - OH6NIO -3 / +1 5 ✓ Full exchange observed
09-16 18:09 60m -8 / - PB0ACU - / -2 3 ✓ Closing fragment
09-16 15:17 40m - / -9 HB9ELE +9 / - 2 Partial capture
09-16 15:10 40m - / -9 DM3YBN -2 / - 2 Partial capture
09-16 12:47 40m - / -14 HA7TM +4 / - 2 ✓ Closing fragment
09-16 12:45 40m - / -20 UW5KW -13 / - 2 ✓ Closing fragment
09-16 09:29 40m - / -11 DL6EL -10 / - 3 ✓ Closing fragment
09-16 09:29 40m - / -10 DL9KM -13 / - 5 ✓ Closing fragment
09-16 08:41 40m - / +10 SQ9SZ -6 / - 2 ✓ Closing fragment
09-16 08:38 40m - / -14 S53AK -8 / - 3 Partial capture
09-16 08:37 40m - / -15 HA8LD -5 / - 2 ✓ Closing fragment
09-15 19:53 40m -19 / -9 EA5OL -3 / - 4 ✓ Closing observed
09-15 19:28 40m - / -7 PD5BT -12 / - 2 ✓ Closing fragment
09-15 19:25 40m -17 / -8 PD1SL -2 / +1 3 Partial capture
09-15 19:14 60m -12 / - LA3JRA - / -18 3 ✓ Closing fragment
09-15 17:24 60m -11 / - HB9SLT - / -10 3 ✓ Closing fragment
09-15 17:21 60m -11 / - ON8DX -20 / +2 4 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
072800 -12 1740  SM6XVI PA3EVY RR73
073145 -11 2538  SM6XVI ON5RZ 73 (x8)
074530 -11  653  SM6XVI G8KHF -07
091300 -11 1055  SM6XVI OK3MB JO70 (x3)
091430  -4 1221  SM6XVI HA1BF -22 (x2)
60m 
UTC    dB Audio  Message
184445  -7 1932  SM6XVI SP5MXY 73
184500 -13 1134  OZ0A SM6XVI JO66
184515 +11 2843  SM6XVI OZ0A +05
184530 -14 1134  OZ0A SM6XVI R+16
184545 +10 2843  SM6XVI OZ0A RR73
184815 -14 1976  SM6XVI PC2J +01
185000 -15 1034  LY2SA SM6XVI JO66
185015  +0  663  SM6XVI LY2SA +00 (x2)
185100 -18 1034  LY2SA SM6XVI 73
185245  +3  463  SM6XVI PE1RLY -09 (x2)
185630  +1 2799  SM6XVI OH5KNL +12 (x2)
185715  -6  634  OH5KNL SM6XVI 73
80m 
UTC    dB Audio  Message
195400  -3 1114  SM6XVI DK7ZT -11 (x2)
185045  -1 1359  SM6XVI SA6DST -02
170930  +1 2318  SM6XVI OZ1A -15 (x2)
171145  -1 2217  SM6XVI OH5KNL -18
171300 -16  828  OH5KNL SM6XVI R-03
171315  +1 1895  SM6XVI OH5KNL RR73
171400 -15  828  SM5ACQ SM6XVI +11
171415  +7 1446  SM6XVI SM5ACQ R-06
171430 -12  828  SM5ACQ SM6XVI RR73
171530 -14  751  SP7AH SM6XVI JO66
171900  -9 1397  SM6XVI DO4TYW -07 (x2)
172330  -4 1241  SM6XVI DO6AZ -16

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.

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