RW4YD — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RW4YD, decoded by SO8OO in southeastern Poland. 777 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-28 and 2026-08-02.
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 777 FT8 messages attributed to RW4YD as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (94%), followed by 40 m (6%). Most decodes (52%) fell within the six-hour window 08:00-14:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (75%); the estimated median was -18.2 dB.
Overview
Bands
Last attributed message: 2026-08-02 18:39 UTC
Observed FT8 message patterns
- Attributed sample
- 777 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -18.2 dB
- Estimated 10th-90th percentile
- -23 to -13 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 579, moderate (-15 to -9 dB) 184, strong (≥ -8 dB) 14.
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 RW4YD 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 RW4YD
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
- LO36 · 405 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,817 km (approx.)
- Last such locator decoded
- 2026-08-02 18:39 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 | RW4YD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-02 18:34 | 20m | -7 / - | EA5XC | - / -13 | 7 | Partial capture |
| 08-02 18:31 | 20m | - / - | EA5XC | -14 / - | 3 | Partial capture |
| 08-02 18:30 | 20m | -10 / - | BH4ECL | - / -10 | 8 | ✓ Closing fragment |
| 08-02 18:28 | 20m | -12 / - | VR2VOG | - / -7 | 2 | ✓ Closing fragment |
| 08-02 18:25 | 20m | -15 / - | F4DXP | -20 / -19 | 3 | ✓ Closing observed |
| 08-02 18:21 | 20m | -16 / - | I4WQH | - / -11 | 2 | ✓ Closing fragment |
| 08-02 18:15 | 20m | - / +3 | M0GBP | -16 / - | 2 | ✓ Closing fragment |
| 08-02 18:11 | 20m | -16 / - | SP1TB | - / -14 | 2 | ✓ Closing fragment |
| 08-02 17:52 | 20m | -17 / - | CT1EHK | - / -3 | 2 | Partial capture |
| 08-02 17:45 | 20m | - / -18 | IU0VOG | -9 / - | 7 | ✓ Closing fragment |
| 08-02 17:41 | 20m | -14 / - | PD9SD | - / - | 2 | ✓ Closing fragment |
| 08-02 17:36 | 20m | - / +2 | F5SJC | -10 / - | 3 | ✓ Closing fragment |
| 08-02 17:22 | 20m | - / -19 | G0ACQ | -19 / - | 2 | Partial capture |
| 08-02 17:11 | 20m | - / - | EA1NT | -15 / - | 2 | Partial capture |
| 08-02 16:52 | 20m | -20 / - | R6DJR | -13 / - | 2 | ✓ Closing observed |
| 08-02 16:36 | 20m | - / -16 | EA3AAY | -14 / - | 3 | ✓ Closing fragment |
| 08-02 16:34 | 20m | - / -13 | UA6AOP | -14 / - | 2 | Partial capture |
| 08-02 16:23 | 20m | -16 / - | HB9EHE | - / -17 | 3 | Partial capture |
| 08-02 16:16 | 20m | - / -5 | 2E0FUM | -18 / - | 2 | Partial capture |
| 08-02 15:48 | 20m | -23 / - | PD1HBL | - / -4 | 3 | Partial capture |
| 08-02 15:34 | 20m | -20 / - | R1BED | - / -3 | 2 | Partial capture |
| 08-02 15:33 | 20m | -18 / - | DL4GHS | - / -16 | 3 | ✓ Closing fragment |
| 07-31 20:12 | 40m | - / - | DH2YBG | -7 / - | 3 | Partial capture |
| 07-31 20:10 | 40m | - / - | RA3ZOM | -8 / - | 2 | Partial capture |
| 07-31 20:10 | 40m | - / - | RW3DDZ | -15 / - | 7 | Partial capture |
| 07-31 20:06 | 40m | - / - | HG8LXL | -10 / - | 3 | Partial capture |
| 07-31 20:05 | 40m | - / - | RA3ZOM | -9 / - | 7 | Partial capture |
| 07-31 20:00 | 40m | - / - | HG8LXL | -12 / - | 2 | Partial capture |
| 07-31 20:00 | 40m | -21 / -5 | R5AT | -24 / - | 2 | ✓ Closing observed |
| 07-31 19:58 | 40m | -21 / - | OE5ROR | -19 / -17 | 4 | Partial capture |
| 07-31 19:58 | 40m | - / - | RW3DDZ | -18 / - | 15 | Partial capture |
| 07-31 19:49 | 40m | - / -2 | RU6FK | -11 / - | 3 | Partial capture |
| 07-31 19:46 | 40m | - / - | RA3ZOM | -11 / - | 8 | Partial capture |
| 07-31 19:29 | 40m | -21 / - | RD3FY | -19 / +8 | 3 | ✓ Closing observed |
| 07-31 19:29 | 40m | - / - | F5RRS | -15 / - | 5 | Partial capture |
| 07-31 19:28 | 40m | - / -4 | EW8CW | -17 / - | 3 | ✓ Closing fragment |
| 07-30 11:19 | 20m | -20 / -11 | DL1FAM | -11 / - | 2 | ✓ Closing observed |
| 07-30 11:10 | 20m | -15 / -15 | DL4FCK | -7 / -3 | 6 | ✓ Full exchange observed |
| 07-30 11:07 | 20m | -23 / - | EB5AFK | -23 / -9 | 3 | ✓ Closing observed |
| 07-30 11:01 | 20m | - / +4 | DL2WS | -24 / - | 2 | Partial capture |
| 07-30 10:56 | 20m | -22 / - | SA3YTA | -5 / 0 | 5 | ✓ Closing observed |
| 07-30 10:48 | 20m | -21 / -15 | R6TA | -12 / -12 | 3 | Partial capture |
| 07-30 10:47 | 20m | -22 / - | UA9JDH | - / +9 | 2 | ✓ Closing fragment |
| 07-30 10:13 | 20m | -21 / - | CT2FXY | - / -21 | 5 | ✓ Closing fragment |
| 07-30 10:11 | 20m | - / -6 | GM0SDV | -16 / - | 4 | ✓ Closing fragment |
| 07-30 10:07 | 20m | -20 / - | DL3YAR | -24 / -12 | 3 | ✓ Closing observed |
| 07-30 09:44 | 20m | -19 / +4 | RA6OV | -18 / - | 3 | ✓ Closing observed |
| 07-30 09:39 | 20m | - / - | EA5AR | -14 / - | 2 | Partial capture |
| 07-30 09:39 | 20m | -22 / - | RU9CZ | - / -14 | 3 | ✓ Closing fragment |
| 07-30 09:14 | 20m | -20 / - | RA9JM | - / -4 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 183245 -13 1659 BH4ECL RW4YD -08 (x4) 183445 -4 1659 EA5XC RW4YD R-13 (x7) 183815 -8 1660 CQ RW4YD LO36 (x4)
UTC dB Audio Message 201030 -7 1926 RW4YD RA3ZOM KO90 201100 -17 2214 RW4YD RW3DDZ KO86 (x2) 201130 -8 1926 RW4YD RA3ZOM KO90 201200 -15 2214 RW4YD RW3DDZ KO86 (x2) 201230 -9 1122 RW4YD DH2YBG JO43 201300 -14 2214 RW4YD RW3DDZ KO86 201300 -5 1123 RW4YD DH2YBG JO43 201330 -19 2214 RW4YD RW3DDZ KO86 201430 -6 1123 RW4YD DH2YBG JO43 201515 -22 1623 CQ RW4YD LO36 a1 (x2) 201630 -17 2214 RW4YD RW3DDZ KO86 201730 -4 1123 RW4YD DH2YBG JO43
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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