RA3YDA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RA3YDA, decoded by SO8OO in southeastern Poland. 882 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 56 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-20.
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 882 FT8 messages attributed to RA3YDA as the transmitting token by decoded message structure across 56 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (41%), followed by 160 m (33%) and 40 m (18%). Most decodes (98%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -5.3 dB.
Overview
Bands
Last attributed message: 2026-09-20 17:18 UTC
Observed FT8 message patterns
- Attributed sample
- 882 messages
- Active dates
- 56 UTC dates
- Estimated median S/N
- -5.3 dB
- Estimated 10th-90th percentile
- -14 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 55, moderate (-15 to -9 dB) 230, strong (≥ -8 dB) 597.
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 RA3YDA 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 RA3YDA
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
- KO62 · 434 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 830 km (approx.)
- Last such locator decoded
- 2026-09-20 17:18 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 UTC | Band | RA3YDA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 17:10 | 80m | -10 / - | RI1FJZ | - / - | 2 | Partial capture |
| 09-20 17:01 | 80m | - / - | RA1QCX | +1 / - | 2 | Partial capture |
| 09-20 16:57 | 80m | -7 / - | RI1FJZ | - / - | 5 | Partial capture |
| 09-19 20:46 | 80m | +2 / -7 | RD4AI | -20 / - | 3 | Partial capture |
| 09-19 20:44 | 80m | 0 / - | RK0SC | - / - | 2 | Partial capture |
| 09-19 20:41 | 80m | -2 / -3 | RW3YS | +1 / +4 | 5 | ✓ Full exchange observed |
| 09-19 20:39 | 80m | +5 / - | R7ZY | - / -1 | 4 | ✓ Closing fragment |
| 09-19 20:26 | 160m | +4 / -19 | R4NBV | -16 / -5 | 5 | ✓ Full exchange observed |
| 09-19 20:17 | 160m | 0 / - | RI1FJZ | - / -18 | 3 | ✓ Closing fragment |
| 09-19 20:11 | 160m | +10 / -24 | UA3AGW | +18 / +4 | 4 | ✓ Full exchange observed |
| 09-19 20:06 | 160m | -1 / -7 | RC2SB | +4 / -1 | 5 | ✓ Full exchange observed |
| 09-19 20:03 | 160m | -7 / - | R3RRC/P | - / -1 | 3 | ✓ Closing fragment |
| 09-19 20:00 | 160m | -11 / -17 | R2EA/P | -11 / -7 | 5 | ✓ Full exchange observed |
| 09-19 19:59 | 160m | -4 / -5 | UA3GX | -4 / - | 4 | ✓ Closing observed |
| 09-19 19:57 | 160m | -8 / +1 | R2HM | -14 / +1 | 5 | ✓ Full exchange observed |
| 09-18 19:41 | 80m | -1 / - | RN3YN | - / - | 4 | Partial capture |
| 09-18 19:24 | 160m | -1 / -18 | RN1CW | -6 / - | 5 | ✓ Closing observed |
| 09-18 19:22 | 160m | -1 / - | RV6AVU | 0 / -14 | 4 | ✓ Closing observed |
| 09-18 19:14 | 160m | +1 / -11 | RK3YWA | -24 / -10 | 4 | ✓ Full exchange observed |
| 09-18 17:54 | 160m | -8 / - | RD7X | - / - | 4 | Partial capture |
| 09-18 17:03 | 160m | -19 / - | RD7X | - / - | 3 | Partial capture |
| 09-18 16:56 | 160m | -12 / - | RU3ACA | -12 / -6 | 4 | ✓ Closing observed |
| 09-12 20:24 | 80m | +4 / - | R3LCG | -5 / -2 | 3 | ✓ Closing observed |
| 09-12 20:23 | 80m | +4 / - | R4RJ | -9 / -4 | 4 | ✓ Closing observed |
| 09-12 20:14 | 80m | -3 / -8 | UB3ADO/P | -1 / -3 | 5 | ✓ Full exchange observed |
| 09-12 20:09 | 160m | -6 / - | RG4D/P | -18 / -1 | 5 | ✓ Closing observed |
| 09-12 20:01 | 160m | -7 / - | R70SAB | - / - | 4 | Partial capture |
| 09-12 19:59 | 160m | 0 / - | RG4D/P | - / - | 2 | Partial capture |
| 09-12 19:25 | 160m | -2 / -6 | RT4A/P | -22 / -8 | 5 | ✓ Full exchange observed |
| 09-11 19:10 | 160m | -11 / - | RW3BK | -19 / -2 | 4 | ✓ Closing observed |
| 09-11 18:55 | 160m | +4 / - | RW3BK | - / - | 2 | Partial capture |
| 09-11 18:52 | 160m | +1 / - | R4SCB | - / -18 | 4 | Partial capture |
| 09-11 18:23 | 160m | -7 / - | RQ7R | - / -15 | 3 | ✓ Closing fragment |
| 09-11 18:19 | 80m | -12 / - | UB3ADO/P | - / - | 3 | Partial capture |
| 09-11 18:18 | 80m | -11 / -16 | RK3YWA | -13 / 0 | 5 | ✓ Full exchange observed |
| 09-11 18:08 | 160m | -6 / -8 | RW3RN | -4 / 0 | 5 | ✓ Full exchange observed |
| 09-11 17:51 | 80m | +8 / -8 | YO9HP | +10 / -1 | 4 | ✓ Full exchange observed |
| 09-11 17:48 | 80m | +2 / -10 | UC1Q | 0 / - | 4 | ✓ Closing observed |
| 09-11 17:46 | 80m | - / -16 | RX3VF | +4 / - | 2 | Partial capture |
| 09-11 17:27 | 160m | -2 / -8 | RU3DBT | -24 / -1 | 3 | ✓ Full exchange observed |
| 09-11 17:24 | 160m | +1 / -7 | R2DRE | -14 / - | 2 | ✓ Closing observed |
| 09-11 17:23 | 160m | -3 / +3 | RA3X | -19 / -5 | 5 | ✓ Full exchange observed |
| 09-10 19:14 | 80m | -8 / - | RT9K | - / - | 2 | Partial capture |
| 09-08 18:56 | 160m | -10 / - | RW4HUD | - / -11 | 3 | ✓ Closing fragment |
| 09-08 18:53 | 160m | -9 / - | UA3IDQ | - / -11 | 3 | ✓ Closing fragment |
| 09-08 18:40 | 80m | +2 / - | R2CC | -17 / - | 5 | ✓ Closing observed |
| 09-08 18:36 | 80m | +1 / - | UA9ZZ | - / -12 | 5 | ✓ Closing fragment |
| 09-07 19:56 | 80m | 0 / 0 | R2SN | -4 / +1 | 4 | ✓ Full exchange observed |
| 09-07 19:54 | 80m | -6 / - | RA4AID | - / -12 | 4 | ✓ Closing fragment |
| 09-07 17:41 | 80m | -10 / - | SN40KZE | - / +1 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 201015 +4 345 RI1FJZ RA3YDA KO62 201100 +17 2652 RA3YDA UA3AGW -24 201115 +13 345 UA3AGW RA3YDA R+04 201130 +19 2652 RA3YDA UA3AGW RR73 201145 +6 345 UA3AGW RA3YDA 73 201415 -1 518 RI1FJZ RA3YDA KO62 (x4) 202630 -1 708 R4NBV RA3YDA KO62 (x2) 202715 -16 2309 RA3YDA R4NBV -19 202730 +8 708 R4NBV RA3YDA R-05 (x2) 171830 -4 919 R0WC RA3YDA KO62
UTC dB Audio Message 204245 +3 1359 RA3YDA RW3YS 73 204415 +2 2789 RK0SC RA3YDA KO62 (x2) 204600 +5 2789 RD4AI RA3YDA KO62 (x2) 204845 -20 1810 RA3YDA RD4AI -07 165715 -7 714 RI1FJZ RA3YDA KO62 (x4) 170130 +3 679 RA3YDA RA1QCX KP80 170145 -7 618 RI1FJZ RA3YDA KO62 170330 -1 679 RA3YDA RA1QCX KP80 171015 -6 600 RI1FJZ RA3YDA KO62 (x2)
UTC dB Audio Message 171815 -11 1614 RA3YDA UB3ZKO 73 171815 -4 627 RA3YDA UA3GX KO93 171815 -11 1096 RA3YDA RK6MC -03 171830 -11 751 RU6UR RA3YDA R-03 171845 -5 627 RA3YDA UA3GX KO93 171845 -8 1096 RA3YDA RK6MC -03 171900 -6 751 RU6UR RA3YDA 73 171915 -5 627 RA3YDA UA3GX KO93 171915 -1 1096 RA3YDA RK6MC -03 171945 -4 627 RA3YDA UA3GX R-12 171945 -7 1096 RA3YDA RK6MC -03 172000 -6 751 UA3GX RA3YDA RR73 172015 -4 627 RA3YDA UA3GX 73 172130 -6 751 CQ RA3YDA KO62 (x2)
UTC dB Audio Message 182330 -16 1616 RA3YDA CT1BFP IM59 (x2) 140430 +5 2822 RA3YDA SV1SSL KM18 (x3) 132400 +26 2896 RA3YDA EA3CUU JN12 (x5) 140830 +3 2897 RA3YDA DL8WEM JN48 (x2) 141730 -4 1728 RA3YDA RZ3DX KO85 (x3)
UTC dB Audio Message 173300 -15 1090 RN9CA RA3YDA R-05 (x2) 173400 -20 2191 RA9FDR RA3YDA -05 (x2) 183315 -23 1613 RA3YDA R3EDI -13 (x2) 183815 +1 2792 RA3YDA RY7G -05 (x2) 060230 -20 2079 RA3YDA R6JC +02 141400 -3 2890 RA3YDA 9J2FI -05 073415 -6 1410 RA3YDA RN6MA -07 (x2) 080630 -11 1444 RA3YDA RK6MC -05 (x3)
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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