RA5AK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RA5AK, decoded by SO8OO in southeastern Poland. 1,784 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 64 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-26.
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 1,784 FT8 messages attributed to RA5AK as the transmitting token by decoded message structure across 64 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (34%), followed by 40 m (28%) and 80 m (23%). Most decodes (61%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-08-26 19:35 UTC
Observed FT8 message patterns
- Attributed sample
- 1,784 messages
- Active dates
- 64 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -19 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 427, moderate (-15 to -9 dB) 630, strong (≥ -8 dB) 727.
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 RA5AK 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 RA5AK
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 · 178 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,193 km (approx.)
- Last such locator decoded
- 2026-08-26 19:35 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 UTC | Band | RA5AK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-26 19:35 | 40m | -6 / - | R3DNC | - / - | 2 | Partial capture |
| 08-26 19:31 | 40m | -6 / -2 | RA9SBN | 0 / - | 4 | ✓ Closing observed |
| 08-26 18:15 | 40m | -4 / - | US5RK | - / - | 3 | Partial capture |
| 08-26 18:13 | 40m | -3 / - | EW6PG | - / -14 | 2 | Partial capture |
| 08-26 18:09 | 40m | -3 / - | RW3VX | -11 / -6 | 2 | ✓ Closing observed |
| 08-26 18:07 | 40m | -10 / -10 | DJ0MAB | +8 / -16 | 5 | Partial capture |
| 08-26 18:06 | 40m | -7 / - | YO9BGU | - / -17 | 2 | ✓ Closing fragment |
| 08-26 17:43 | 40m | -2 / - | 5A1AL | - / - | 2 | Partial capture |
| 08-26 17:29 | 40m | -6 / - | UB4FJC | - / -6 | 2 | Partial capture |
| 08-26 17:27 | 40m | -13 / - | UA0LQE | - / -15 | 2 | ✓ Closing fragment |
| 08-26 17:26 | 40m | -9 / - | UF8F | - / -20 | 2 | Partial capture |
| 08-26 17:24 | 40m | -15 / - | EU4BE | - / -12 | 3 | ✓ Closing fragment |
| 08-26 17:08 | 20m | +8 / - | ZS1WC | - / - | 2 | Partial capture |
| 08-26 16:32 | 40m | - / +2 | R5ACQ | -2 / - | 2 | ✓ Closing fragment |
| 08-26 14:37 | 20m | -8 / - | CT1END/P | - / - | 2 | Partial capture |
| 08-26 14:01 | 20m | +6 / -5 | BG0EMF | -22 / -2 | 5 | ✓ Full exchange observed |
| 08-26 09:55 | 20m | +4 / - | RI1FJL | - / +5 | 30 | Partial capture |
| 08-26 07:17 | 20m | +6 / - | RI1FJL | - / -1 | 15 | Partial capture |
| 08-26 07:06 | 20m | +6 / - | RI1FJL | - / -3 | 5 | Partial capture |
| 08-26 07:02 | 20m | +8 / -25 | RW6HPS | -2 / -6 | 5 | ✓ Full exchange observed |
| 08-26 07:00 | 20m | +8 / - | RI1FJL | - / -6 | 5 | Partial capture |
| 08-25 19:06 | 40m | -10 / - | UC1Q | -3 / 0 | 3 | ✓ Closing observed |
| 08-25 18:41 | 40m | - / -11 | RL3QI | -6 / - | 2 | ✓ Closing fragment |
| 08-25 18:40 | 40m | -12 / - | M7HNI | - / -16 | 2 | Partial capture |
| 08-25 18:39 | 40m | -9 / - | R1BOY | -15 / - | 2 | ✓ Closing observed |
| 08-25 18:37 | 40m | -5 / -5 | SP6EFY | +6 / - | 3 | ✓ Closing observed |
| 08-25 18:20 | 40m | -7 / -9 | F4IFO | -9 / -14 | 4 | ✓ Full exchange observed |
| 08-25 18:19 | 40m | -11 / -5 | YO3OBB | -6 / -5 | 4 | ✓ Full exchange observed |
| 08-25 18:18 | 40m | -14 / - | DL9MF | -9 / -17 | 3 | ✓ Closing observed |
| 08-25 18:16 | 40m | -12 / - | LZ1EV | - / +4 | 2 | Partial capture |
| 08-24 19:43 | 40m | -16 / - | JE4NAN | - / - | 3 | Partial capture |
| 08-24 19:23 | 40m | -10 / - | LB0QJ | - / -19 | 2 | ✓ Closing fragment |
| 08-24 19:08 | 40m | -3 / -6 | R6LQU | -2 / 0 | 3 | ✓ Full exchange observed |
| 08-24 19:03 | 40m | -9 / -16 | DD3VV | -2 / -16 | 12 | ✓ Full exchange observed |
| 08-24 19:02 | 40m | -7 / -7 | R2EA/P | -2 / +2 | 3 | ✓ Full exchange observed |
| 08-24 18:55 | 40m | -4 / - | RC3C | - / -5 | 3 | ✓ Closing fragment |
| 08-24 18:52 | 40m | -1 / - | RN1NEB | -14 / - | 2 | ✓ Closing observed |
| 08-24 18:32 | 40m | -4 / - | R6DSU | -14 / -14 | 3 | ✓ Closing observed |
| 08-24 18:31 | 40m | -3 / - | RO7F | -2 / - | 2 | ✓ Closing observed |
| 08-24 18:28 | 40m | - / -1 | RX9ABI | -4 / - | 2 | ✓ Closing fragment |
| 08-24 18:20 | 40m | -11 / - | R4YBG | - / -8 | 3 | Partial capture |
| 08-24 18:18 | 40m | -7 / -14 | DG5BCR | -4 / - | 3 | ✓ Closing observed |
| 08-24 18:16 | 40m | - / +4 | R6SBN | +4 / - | 2 | ✓ Closing fragment |
| 08-24 18:15 | 40m | -10 / -5 | RA3DA | +8 / - | 3 | ✓ Closing observed |
| 08-24 06:12 | 20m | -13 / - | VJ2Q | - / -11 | 3 | Partial capture |
| 08-24 06:10 | 20m | -8 / - | W4IMD | - / -16 | 2 | Partial capture |
| 08-24 06:09 | 20m | -9 / -1 | R6OH | +3 / 0 | 4 | ✓ Full exchange observed |
| 08-23 18:50 | 40m | -6 / - | R3DQK | -12 / -15 | 3 | ✓ Closing observed |
| 08-23 18:49 | 40m | -9 / - | UA3IDQ | - / -18 | 2 | Partial capture |
| 08-23 18:40 | 40m | - / -10 | UB3AVN | -14 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 180845 +3 2869 RA5AK DJ0MAB R-10 180930 -3 869 RW3VX RA5AK R-06 180945 -11 868 RA5AK RW3VX RR73 181315 -2 758 YD5BAG RA5AK KO85 181345 -1 759 EW6PG RA5AK KO85 (x2) 181530 -3 759 US5RK RA5AK KO85 (x3) 193145 -7 2367 RA9SBN RA5AK KO85 (x2) 193300 -1 2937 RA5AK RA9SBN -02 (x2) 193515 -6 2367 R3DNC RA5AK KO85 (x2)
UTC dB Audio Message 101345 +1 1781 RI1FJL RA5AK -04 (x5) 140145 +7 2090 BG0EMF RA5AK KO85 140200 -24 1605 RA5AK BG0EMF -05 140215 +8 2090 BG0EMF RA5AK R-02 140230 -21 1605 RA5AK BG0EMF RR73 140245 +2 2090 BG0EMF RA5AK 73 142315 -13 2090 F4DZF/P RA5AK KO85 143730 -7 856 CT1END/P RA5AK KO85 (x2) 170800 +7 856 ZS1WC RA5AK KO85 (x2)
UTC dB Audio Message 215230 -9 1112 RA5AK RL7Z 73 215315 +1 717 CQ RA5AK KO85 a1 215330 +12 718 RA5AK YT5DL KN04 215330 -3 2424 RA5AK R2XM KO84 215400 +19 717 RA5AK DK7ZT -01 215400 +2 2424 RA5AK R2XM R-03 215415 +5 717 R2XM RA5AK RR73 215430 -3 2424 RA5AK R2XM 73 215500 +1 2596 RA5AK SV2AEL KN10 (x2) 215600 +12 717 RA5AK DK7ZT -02 215600 +4 2596 RA5AK SV2AEL 73 215615 -1 717 DK7ZT RA5AK R-06 215630 +12 717 RA5AK DK7ZT RR73 215645 -2 717 DK7ZT RA5AK 73
UTC dB Audio Message 190030 -24 1897 LZ3YY RA5AK 73 190145 -18 1895 RA5AK RC1TF -18 190145 -1 1844 RA5AK EW6CB -12 (x2) 190315 -7 926 RA5AK RA6YDX LN04 (x5) 190545 +3 792 RA5AK RK4FD LO22 (x3) 190715 -14 926 RA5AK RA6YDX LN04 190715 +1 792 RA5AK RK4FD R-14 (x2)
UTC dB Audio Message 091115 -19 1280 RA5AK RA3QTT R-16 (x2) 110730 -15 1100 RA5AK RM5C R-14 084415 -24 1910 R9VA RA5AK RR73 185715 -10 764 R9FFJ RA5AK +05 081630 -10 2441 UA1RC RA5AK 73 081830 -17 1914 RA1N RA5AK RR73 081900 -20 1914 R3WEB RA5AK RR73 082100 -21 1913 R2HM RA5AK RR73 082300 -17 1914 R1NO RA5AK RR73 082400 -14 1914 UI5A RA5AK RR73 082445 -19 1914 R2EA RA5AK +02 082645 -17 1914 RC7C RA5AK RR73 083900 -19 1914 R6OK RA5AK RR73 084100 -20 1914 UR5AMJ RA5AK -09
UTC dB Audio Message 193715 -6 2564 RA5AK IK6DLK JN63
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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