TF8KW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Iceland Most frequent locator attributed to this token: HP84

Receiver-side FT8 activity involving TF8KW, decoded by SO8OO in southeastern Poland. 1,465 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 57 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-19.

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 1,465 FT8 messages attributed to TF8KW as the transmitting token by decoded message structure across 57 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (68%), followed by 20 m (19%) and 60 m (13%). Most decodes (99%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

1,465
Messages attributed
57
UTC dates decoded
195
Active 15-min windows
-13 dB
Estimated median S/N

Bands

60m · 197 40m · 994 20m · 274
First attributed message: 2026-06-06
Last attributed message: 2026-09-19 22:44 UTC

Observed FT8 message patterns

Attributed sample
1,465 messages
Active dates
57 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-19 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 404, moderate (-15 to -9 dB) 800, strong (≥ -8 dB) 261.

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 TF8KW 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 TF8KW

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
HP84 · 680 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
3,052 km (approx.)
Last such locator decoded
2026-09-19 22:44 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 UTCBandTF8KW S/NCounterpartCounterpart S/NMsgsCapture
09-19 22:40 40m -9 / - YC2BUZ - / - 5 Partial capture
09-19 22:40 40m - / - R2DGN -4 / - 2 Partial capture
09-19 22:35 40m -7 / -10 PA3ESZ -5 / - 5 ✓ Closing observed
09-19 22:32 40m -10 / -13 EX7CQ +4 / -6 5 ✓ Full exchange observed
09-19 22:29 40m -11 / -20 LB8TG -11 / -10 5 ✓ Full exchange observed
09-19 22:29 40m - / - ON5LC -4 / - 2 Partial capture
09-19 22:25 40m -9 / - RX6AOB -5 / -10 2 ✓ Closing observed
09-19 22:22 40m - / -3 PD1KR -10 / - 4 Partial capture
09-19 22:17 40m -5 / - TN8GD - / - 2 Partial capture
09-19 21:52 40m -10 / - M0PEL -17 / -5 2 Partial capture
09-19 21:48 40m -9 / - SQ5KGV - / -9 2 ✓ Closing fragment
09-19 21:14 40m - / - RU5A -2 / - 2 Partial capture
09-19 21:12 40m - / - G1VHD -15 / - 6 Partial capture
09-19 21:05 40m - / - G1VHD -12 / - 2 Partial capture
09-19 21:01 40m -9 / +1 G7PLS -1 / -2 3 Partial capture
09-19 20:57 40m - / - M0XYF 0 / - 2 Partial capture
09-19 20:52 40m - / -9 M6NFT -12 / - 7 ✓ Closing fragment
09-18 23:35 40m -8 / - RX9WM - / - 3 Partial capture
09-18 23:17 40m -11 / - VE1RGO -11 / - 4 ✓ Closing observed
09-18 23:15 40m -13 / - SN4K - / -16 3 ✓ Closing fragment
09-18 23:11 40m -12 / - SP9UXS - / -12 3 ✓ Closing fragment
09-18 23:08 40m - / -21 GM5SNW -10 / - 4 ✓ Closing fragment
09-18 23:00 40m - / - R3DAJ -15 / - 2 Partial capture
09-18 23:00 40m -12 / - N1WRN - / -16 3 Partial capture
09-18 22:50 40m -10 / - DM2FK - / -14 4 Partial capture
09-18 22:46 40m -7 / +4 R4FDK -9 / - 5 ✓ Closing observed
09-18 22:43 40m -6 / +10 2E0AAG -14 / -15 8 ✓ Full exchange observed
09-18 22:35 40m - / - R4FDK -9 / - 7 Partial capture
09-17 23:08 60m - / - IW1BCW -14 / - 4 Partial capture
09-17 23:07 60m - / -8 DK7QJ +8 / - 3 ✓ Closing fragment
09-17 23:01 60m - / -8 SA2ENN -10 / - 5 ✓ Closing fragment
09-17 23:00 60m -11 / - N8OQ - / -16 2 ✓ Closing fragment
09-17 22:34 60m - / - DH8BAO +2 / - 3 Partial capture
09-17 22:31 60m -10 / - CR7CBH - / -7 2 ✓ Closing fragment
09-17 22:29 60m - / - OG6N -8 / - 2 Partial capture
09-17 22:28 60m -11 / -19 LZ2VQ +12 / -13 5 ✓ Full exchange observed
09-17 22:26 60m -11 / -4 F4FTV -10 / -12 5 ✓ Full exchange observed
09-17 22:26 60m - / - PA3DNR -4 / - 4 Partial capture
09-17 22:24 60m - / - LZ2VQ +11 / - 3 Partial capture
09-17 22:23 60m -12 / -4 DA0O 0 / - 3 ✓ Closing observed
09-17 22:19 60m - / - LZ2VQ +12 / - 3 Partial capture
09-17 22:17 60m - / -13 IK1BQD -1 / - 4 Partial capture
09-17 22:16 60m - / -14 DL6TK +2 / - 4 ✓ Closing fragment
09-17 22:15 60m - / -14 F4ESO -14 / - 3 ✓ Closing fragment
09-17 22:15 60m - / - IW0BYL -12 / - 6 Partial capture
09-17 22:14 60m - / - LZ2VQ +10 / - 3 Partial capture
09-17 22:12 60m - / -7 DL6MDF -5 / - 3 ✓ Closing fragment
09-17 22:08 40m -6 / - OH6WQ - / - 2 Partial capture
09-17 22:01 40m -6 / - DL9CP -4 / -4 14 Partial capture
09-17 21:56 40m -10 / -8 M0PWC -9 / -13 4 ✓ 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
223700  -5  700  TF8KW PA3ESZ 73
223745  -8  700  CQ TF8KW HP84 (x2)
223845  -6  700  ON8WR TF8KW -13
224000  -4  700  TF8KW R2DGN KO94
224015 -12  700  CQ TF8KW HP84
224030  -3  700  TF8KW R2DGN KO94
224045 -13  700  YC2BUZ TF8KW HP84
224100  -7 1285  TF8KW EA1Y IN71
224115  -7  700  YC2BUZ TF8KW HP84 (x4)
224445  -4  700  OA4ENG TF8KW HP84
224700 -15 1384  TF8KW HA7JDU JN87
60m 
UTC    dB Audio  Message
230015 -12  641  N8OQ TF8KW -16 (x2)
230130 -10 1831  TF8KW SA2ENN KP16 (x5)
230730  +4  642  TF8KW DK7QJ JO41 (x2)
230830 -14 1192  TF8KW IW1BCW JN44
230830 +11  642  TF8KW DK7QJ 73
230900 -13 1193  TF8KW IW1BCW JN44 (x3)
231330  -8 1161  TF8KW PA7ZZ JO22
160m 
UTC    dB Audio  Message
225945 -13 1290  TF8KW IK2SGB JN55 (x2)
230415 -11  950  TF8KW OZ1LWT JO46 (x2)
230445 -18 1018  TF8KW IT9SVJ JM68 (x6)
223315  -1 1393  TF8KW PA4PA JO22 (x2)
230945 -10 1704  TF8KW EI5GSB IO51 (x3)
20m 
UTC    dB Audio  Message
220415  -2 1529  TF8KW WA9WUD R-04 (x6)
200000 -24 1638  TF8KW 2E0UMF -13
213730 -18 1077  TF8KW BH4ECL R+00
214745 -18 1213  F5RAB TF8KW -07 (x7)
80m 
UTC    dB Audio  Message
202545  -1  730  TF8KW R6ZEJ KN98 (x3)
10m 
UTC    dB Audio  Message
201630  -2 1107  TF8KW DN9ZZ JO32 (x15)

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee