R5FQ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving R5FQ, decoded by SO8OO in southeastern Poland. 302 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 20 UTC dates in the available aggregate history. Observed between 2026-07-04 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 302 FT8 messages attributed to R5FQ as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 20 m (25%) and 80 m (24%). Several six-hour UTC windows tied for the largest share (86%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -3 dB.

Overview

302
Messages attributed
20
UTC dates decoded
42
Active 15-min windows
-3 dB
Estimated median S/N

Bands

First attributed message: 2026-07-04
Last attributed message: 2026-09-19 18:46 UTC

Observed FT8 message patterns

Attributed sample
302 messages
Active dates
20 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-14 to +10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 75, strong (≥ -8 dB) 206.

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.

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 R5FQ

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
KO85 · 11 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-08-31 20:18 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 UTCBandR5FQ S/NCounterpartCounterpart S/NMsgsCapture
09-19 18:48 80m - / - R3RRC/P -2 / - 2 ✓ Closing fragment
09-19 18:45 80m - / -6 RA3GZ +10 / - 2 ✓ Closing fragment
09-12 05:52 40m -13 / - RT4A/P - / -7 5 ✓ Closing fragment
09-12 05:49 40m -4 / - RM5F -7 / +4 4 ✓ Closing observed
09-12 05:48 40m -7 / -8 LZ936BA +2 / -11 3 Partial capture
09-12 05:44 40m -2 / - UB3ADO/P - / -11 2 ✓ Closing fragment
09-09 18:28 40m -4 / - UB2FDL - / -10 2 ✓ Closing fragment
09-08 18:42 40m -5 / -9 SO100PKP -12 / -9 3 Partial capture
09-08 18:40 40m - / -6 RM6OM -4 / - 2 ✓ Closing fragment
09-08 18:22 40m -2 / +10 R73SLET +3 / -2 2 Partial capture
09-08 18:22 40m +3 / -6 R7OQ -11 / - 2 ✓ Closing observed
09-08 18:20 40m -2 / - PD1AR - / -13 2 ✓ Closing fragment
09-08 18:17 80m +9 / - RA3THN - / -10 2 ✓ Closing fragment
09-08 18:07 80m +5 / -6 DF0GDX +14 / -8 4 ✓ Full exchange observed
09-08 18:06 80m +11 / - UC1Q - / +5 2 Partial capture
09-08 18:05 80m +6 / -6 UB6OAJ +2 / -1 4 ✓ Full exchange observed
09-08 17:25 80m - / - R2UZ -3 / - 3 Partial capture
09-08 17:19 80m +12 / - R9CS/P - / -12 12 ✓ Closing fragment
09-07 18:26 80m -1 / - U1BD - / -6 3 ✓ Closing fragment
09-07 18:26 80m - / - RK6MC +5 / - 6 Partial capture
09-07 18:24 80m +5 / -8 R6ZEJ -2 / -5 4 ✓ Full exchange observed
09-07 18:19 80m -5 / -12 DL3MIB -2 / -9 4 ✓ Full exchange observed
09-07 18:18 80m -8 / -20 OM2WW +1 / - 5 ✓ Closing observed
09-07 18:15 80m +9 / - R1943OD +16 / -4 2 Partial capture
09-07 18:14 40m +4 / - RZ5D -9 / -17 8 Partial capture
08-31 20:13 20m -4 / - RV9CX/0 - / -21 12 Partial capture
08-30 18:51 40m +5 / 0 R6LOM 0 / - 3 ✓ Closing observed
08-30 18:43 40m -3 / - RM6OS +10 / - 3 ✓ Closing observed
08-30 18:39 40m +3 / - UD1I - / -11 2 ✓ Closing fragment
08-30 18:36 40m +6 / -2 GB64MOD +2 / -1 2 Partial capture
08-30 18:35 40m +4 / - UB0SMX/P - / -17 2 ✓ Closing fragment
08-30 18:31 40m - / - UA3POG -12 / - 4 Partial capture
08-26 18:59 20m +8 / - 2I0WAI - / -4 2 ✓ Closing fragment
08-26 18:57 20m +16 / - CT1END/P - / -10 2 Partial capture
08-26 18:56 20m +12 / -2 DM2DXA +14 / - 3 ✓ Closing observed
08-26 18:54 20m +12 / - RI1FJL - / -16 2 Partial capture
08-20 21:27 80m +2 / - UA3IDQ - / -10 2 ✓ Closing fragment
08-20 21:26 80m 0 / 0 <...> -12 / -1 3 Partial capture
08-20 21:25 80m +4 / -5 RM5F +2 / -2 5 ✓ Full exchange observed
08-20 21:24 80m 0 / -2 TC3CT 0 / -8 4 ✓ Full exchange observed
08-19 21:20 20m - / -14 VA2PM -7 / - 2 ✓ Closing fragment
08-19 21:03 40m 0 / - 8Z1IT - / -10 4 Partial capture
08-19 20:59 40m +3 / - VK2NN - / -20 2 ✓ Closing fragment
08-19 20:52 40m +2 / - <...> - / -13 9 Partial capture
08-19 20:50 40m +1 / - R2EA/M - / -17 3 Partial capture
08-19 20:45 40m -4 / -5 OO0O -13 / -16 3 ✓ Full exchange observed
08-19 20:42 40m -6 / - 9M2RSI - / -16 2 ✓ Closing fragment
08-19 20:41 40m -6 / - JH2CHY - / -17 3 ✓ Closing fragment
08-19 20:39 40m -6 / - TN8GD - / -15 2 ✓ Closing fragment
08-18 21:32 80m +8 / -7 R2EA/P +8 / -6 6 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
180545  +9  706  UB6OAJ R5FQ RR73
180600  +3  391  R5FQ UB6OAJ 73
180615 +13  706  UC1Q R5FQ +05 (x2)
180715  +7  706  DF0GDX R5FQ -08
180730 +12 2650  R5FQ DF0GDX R-06
180745  +3  705  DF0GDX R5FQ RR73
180800 +15 2650  R5FQ DF0GDX 73
181745  +4  706  RA3THN R5FQ -10 (x2)
184500 +11 1625  R5FQ RA3GZ R-06 (x2)
184615  -1 2764  R3RRC/P R5FQ -03
184830  -1 2365  R5FQ R3RRC/P R+20 (x2)
40m
UTC    dB Audio  Message
054500  -1  428  UB3ADO/P R5FQ RR73
054515  -8 2537  R5FQ RM5F KO85
054815  -7 2187  <LZ936BA> R5FQ -11
054830  +3 2408  R5FQ LZ936BA R-08
054900  -6 2538  R5FQ RM5F KO85
054900  +1 2408  R5FQ LZ936BA R-08
054930  -8 2538  R5FQ RM5F KO85
055115  -6 2538  RM5F R5FQ +04 (x2)
055230 -14 1747  RT4A/P R5FQ -07 (x3)
055345  -8 1747  R5FQ RA6OD KN97
055400 -11 1747  RT4A/P R5FQ RR73 (x2)
20m
UTC    dB Audio  Message
185800 +17 2383  CT1END/P R5FQ -10
185900 +11 3081  2I0WAI R5FQ -04 (x2)
201315  +2 2290  <RV9CX/0> R5FQ KO85 (x12)

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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