R2FDP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Kaliningrad Most frequent locator attributed to this token: KO04

Receiver-side FT8 activity involving R2FDP, decoded by SO8OO in southeastern Poland. 115 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 17 UTC dates in the available aggregate history. Observed between 2026-08-10 and 2026-09-16.

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 115 FT8 messages attributed to R2FDP as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (86%), followed by 20 m (9%) and 80 m (5%). Several six-hour UTC windows tied for the largest share (57%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (76%); the estimated median was -18 dB.

Overview

115
Messages attributed
17
UTC dates decoded
36
Active 15-min windows
-18 dB
Estimated median S/N

Bands

80m · 6 40m · 99 20m · 10
First attributed message: 2026-08-10
Last attributed message: 2026-09-16 16:18 UTC

Observed FT8 message patterns

Attributed sample
115 messages
Active dates
17 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-23 to -13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 87, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 1.

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 R2FDP 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 R2FDP

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
KO04 · 57 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
510 km (approx.)
Last such locator decoded
2026-09-08 18:05 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 UTCBandR2FDP S/NCounterpartCounterpart S/NMsgsCapture
09-15 21:30 40m - / -11 IZ1BII 0 / - 4 ✓ Closing fragment
09-14 21:51 40m - / -15 SY1BKQ -1 / - 3 ✓ Closing fragment
09-14 21:49 40m - / -3 PD7BDN -1 / - 3 ✓ Closing fragment
09-14 21:48 40m - / -9 ON1PK -12 / - 2 ✓ Closing fragment
09-14 12:15 20m - / -16 IK4LZH -10 / - 4 ✓ Closing fragment
09-13 21:24 40m - / -14 EA4II -10 / - 2 ✓ Closing fragment
09-13 03:39 80m - / -19 OK1AY +11 / - 5 Partial capture
09-13 03:30 80m - / -16 PI4DX +14 / - 2 ✓ Closing fragment
09-12 20:32 40m - / -16 IZ7ECL -2 / - 2 Partial capture
09-12 20:25 40m - / -7 IU5VLR -16 / - 2 ✓ Closing fragment
09-12 20:25 40m - / -19 PE1LYU -12 / - 3 Partial capture
09-12 20:20 40m -18 / -15 IC8TEM +5 / -13 5 ✓ Full exchange observed
09-12 20:12 40m - / -6 F4JDM -2 / - 5 ✓ Closing fragment
09-12 20:07 40m - / - RA6OY +10 / - 5 Partial capture
09-12 20:01 40m - / -3 RK3YWA -4 / - 2 Partial capture
09-10 21:05 40m - / - DF5AH 0 / - 2 ✓ Closing fragment
09-10 18:56 40m - / -15 R6DZR -2 / - 2 Partial capture
09-10 18:50 40m - / - DL6EL +6 / - 3 Partial capture
09-10 18:49 40m - / - R6DZR +4 / - 2 Partial capture
09-10 18:45 40m - / - R6DZR +2 / - 2 Partial capture
09-10 18:38 40m - / -11 RG5A +16 / - 3 ✓ Closing fragment
09-10 18:37 40m - / - OE8PIT +3 / - 3 Partial capture
09-10 18:30 40m - / -17 DK5EO -7 / - 3 Partial capture
09-09 21:22 40m - / -11 EH2PDA -10 / - 2 ✓ Closing fragment
09-09 21:14 40m - / -8 GM0OPS -3 / - 5 ✓ Closing fragment
09-09 21:07 40m - / -11 PD2RAL -8 / - 2 ✓ Closing fragment
09-09 21:02 40m - / -15 F4BYA +4 / - 3 ✓ Closing fragment
09-09 20:56 40m -20 / -4 DL9MY +4 / - 5 ✓ Closing observed
09-09 20:53 40m - / -2 DR800WE +6 / - 2 Partial capture
09-09 04:19 80m - / -9 SP100PKP +20 / - 2 Partial capture
09-09 04:15 80m - / -15 HF100PKP +4 / - 2 Partial capture
09-08 22:12 80m -17 / -22 SM7TZK +4 / -13 3 ✓ Full exchange observed
09-08 22:07 80m - / -10 OK1SI +19 / - 2 ✓ Closing fragment
09-08 18:53 40m - / -13 RN3QTS -6 / - 2 ✓ Closing fragment
09-08 18:49 40m - / +1 DL8UVG +4 / - 5 ✓ Closing fragment
09-08 18:47 40m - / -18 G0JEI -5 / - 2 ✓ Closing fragment
09-08 18:42 40m - / -11 RN6MA 0 / - 2 Partial capture
09-08 18:34 40m - / -16 RW3DDZ -4 / - 5 ✓ Closing fragment
09-08 18:31 40m - / -15 DJ0ABM +1 / - 2 ✓ Closing fragment
09-08 18:28 40m - / -18 YO4FZV +13 / - 3 ✓ Closing fragment
09-08 18:24 40m - / -20 UA3SCU -2 / - 3 ✓ Closing fragment
09-08 18:09 40m -20 / - E77EA 0 / - 2 ✓ Closing observed
09-08 18:06 40m - / -13 F8ARK +14 / - 3 ✓ Closing fragment
09-08 18:02 40m -12 / - R3LAF -12 / -11 4 ✓ Closing observed
09-08 17:57 40m - / -11 RC3D +7 / - 5 ✓ Closing fragment
09-08 17:53 40m - / - RU3DNN -6 / - 2 Partial capture
09-08 04:12 80m -24 / -23 DK7ZT +4 / -10 5 ✓ Full exchange observed
09-08 04:12 80m - / -15 DO9BAU +5 / - 10 Partial capture
09-08 04:10 80m -24 / -20 DK1AQ +4 / -3 5 ✓ Full exchange observed
09-07 21:14 40m - / -3 G6INI -8 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
215045  +2 1326  R2FDP PD7BDN 73
215115 -11 2299  R2FDP IQ4JO JN63
215145  -4  852  R2FDP SY1BKQ KM18
215145  -5  877  R2FDP G0RVY JO01
215215  +0  851  R2FDP SY1BKQ R-15 (x2)
213000  +1 2496  R2FDP IZ1BII JN44 (x4)
213500 -24 1464  R2FDP MM6EJO -02
213700 -18 1462  R2FDP M8XWW R-11
161730 +13 2598  R2FDP RY3D KO95
161730  -9 1642  R2FDP OH7BDI KP42
161815 -22 1642  2E0UMK R2FDP -16
20m 
UTC    dB Audio  Message
080630 -11 1730  R2FDP UA3RRT LO03
182745 -10  679  R2FDP II7MGBR -14
183045 -13  621  R2FDP M9OOS -09 (x2)
185200  -3 2933  R2FDP M8GGQ -07
190930  -3 1068  R2FDP II7MGML -10
075145  -2  903  R2FDP F1BHB -12 (x3)
134030 -20 1603  R2FDP ON1JP -17 (x2)
121515  -9  464  R2FDP IK4LZH JN54 (x4)
80m 
UTC    dB Audio  Message
220800 +19  403  R2FDP OK1SI RR73
221230  +4 1482  R2FDP SM7TZK -22
221245 -17 1482  SM7TZK R2FDP R-13
221300  +4 1482  R2FDP SM7TZK RR73
041500  +5 1109  R2FDP HF100PKP -15 (x2)
041900 +19 2604  R2FDP SP100PKP -09 (x2)
033045 +14 1066  R2FDP PI4DX -16 (x2)
033930 +12 2367  R2FDP OK1AY -19 (x5)
10m 
UTC    dB Audio  Message
112630  -7 1894  R2FDP DN9SGE -14 (x4)
113345 -16  865  R2FDP M8FQT RR73
113415  -3  877  R2FDP DJ3HW JO30 (x2)
104200 -13 1311  R2FDP DN9DSP -13 (x4)
112115 +15  489  R2FDP IK4LZH JN54 (x4)

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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