RA7KW — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RA7KW, decoded by SO8OO in southeastern Poland. 229 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 10m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-11 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 229 FT8 messages attributed to RA7KW as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (53%), followed by 80 m (29%) and 10 m (10%). Most decodes (71%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (60%); the estimated median was -5 dB.
Overview
Bands
Last attributed message: 2026-09-20 17:39 UTC
Observed FT8 message patterns
- Attributed sample
- 229 messages
- Active dates
- 23 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -18 to +9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 38, moderate (-15 to -9 dB) 53, strong (≥ -8 dB) 138.
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 RA7KW 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 RA7KW
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
- KN74 · 31 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,164 km (approx.)
- Last such locator decoded
- 2026-09-20 17:38 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 | RA7KW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 17:40 | 160m | - / - | OK1DXR | +3 / - | 6 | Partial capture |
| 09-20 17:37 | 160m | +1 / - | RI1FJZ | - / -22 | 5 | ✓ Closing fragment |
| 09-17 23:10 | 80m | -7 / -19 | DL3MIB | +16 / -13 | 10 | ✓ Full exchange observed |
| 09-17 23:08 | 80m | -5 / -13 | RQ6B | +8 / - | 5 | ✓ Closing observed |
| 09-17 22:20 | 80m | - / -14 | R4HHN | +2 / - | 2 | ✓ Closing fragment |
| 09-14 22:12 | 80m | +18 / - | RK0SC | - / -19 | 2 | ✓ Closing fragment |
| 09-13 16:48 | 160m | -6 / -3 | RN3RFZ | -18 / -8 | 4 | ✓ Full exchange observed |
| 09-13 16:46 | 160m | -9 / -1 | R9CS/P | -10 / -14 | 8 | ✓ Full exchange observed |
| 09-10 23:19 | 40m | - / -19 | R3ST | +4 / - | 3 | ✓ Closing fragment |
| 09-10 23:01 | 40m | - / -20 | RA3TVW | -19 / - | 2 | ✓ Closing fragment |
| 09-10 22:47 | 80m | -13 / -23 | Z62NS | -1 / -14 | 22 | Partial capture |
| 09-10 22:46 | 80m | -8 / - | R6ODX | 0 / -5 | 3 | ✓ Closing observed |
| 09-10 22:43 | 80m | -9 / -18 | R4OF | -8 / -12 | 5 | Partial capture |
| 09-10 22:40 | 80m | -17 / +4 | R3KLE | -8 / - | 3 | ✓ Closing observed |
| 09-06 22:41 | 80m | - / - | IQ4JO | +1 / - | 3 | Partial capture |
| 09-06 22:36 | 40m | - / - | F4BYA | +8 / - | 2 | Partial capture |
| 09-06 22:36 | 40m | - / - | TA3NK | -2 / - | 10 | Partial capture |
| 09-06 22:32 | 40m | -15 / -18 | UA9CR | -1 / -1 | 6 | ✓ Full exchange observed |
| 09-06 19:46 | 160m | +2 / -15 | R9CS/P | -7 / -12 | 6 | ✓ Full exchange observed |
| 09-06 19:29 | 160m | +1 / - | R9CS/P | - / -15 | 9 | Partial capture |
| 09-06 19:13 | 160m | -1 / - | R9CS/P | - / -15 | 21 | Partial capture |
| 09-06 17:31 | 80m | 0 / - | R9CS/P | - / +9 | 7 | Partial capture |
| 09-06 17:16 | 80m | +13 / - | R9CS/P | - / +10 | 3 | Partial capture |
| 09-06 16:10 | 80m | +10 / - | R3ICU | -16 / -24 | 6 | ✓ Closing observed |
| 09-06 16:06 | 80m | +10 / - | RD9U | - / -9 | 2 | Partial capture |
| 09-05 16:56 | 160m | -2 / - | R9CS/P | - / -16 | 6 | ✓ Closing fragment |
| 09-05 16:35 | 160m | -10 / - | R9CS/P | - / -16 | 22 | Partial capture |
| 08-30 18:17 | 160m | -4 / - | UD8S | - / -20 | 3 | Partial capture |
| 08-30 18:06 | 160m | +6 / -13 | RW3VA | -23 / -19 | 5 | ✓ Full exchange observed |
| 08-30 18:03 | 160m | 0 / - | R9CS/P | - / -18 | 3 | ✓ Closing fragment |
| 08-30 18:01 | 160m | +6 / - | RW4HUD | - / -17 | 2 | ✓ Closing fragment |
| 08-29 00:28 | 80m | - / - | R4UA | +1 / - | 2 | Partial capture |
| 08-29 00:27 | 80m | - / -12 | UG4L | 0 / - | 2 | ✓ Closing fragment |
| 08-29 00:10 | 80m | - / -12 | UA3NFI | +16 / - | 2 | ✓ Closing fragment |
| 08-28 23:02 | 80m | - / -15 | R5BS | +8 / - | 2 | ✓ Closing fragment |
| 08-22 19:49 | 160m | +4 / - | <...> | - / -22 | 5 | Partial capture |
| 08-22 19:48 | 160m | -4 / - | RW9H/M | - / -22 | 2 | Partial capture |
| 08-20 01:21 | 40m | - / -12 | UB4CJS | -12 / - | 3 | Partial capture |
| 08-20 01:20 | 40m | - / -9 | RZ6L | -4 / - | 2 | ✓ Closing fragment |
| 08-14 19:53 | 160m | -6 / - | R2UZ/P | - / -18 | 2 | Partial capture |
| 08-14 19:11 | 160m | +8 / - | R2UZ/P | - / -2 | 4 | Partial capture |
| 08-14 19:09 | 160m | +2 / - | RO2E/M | - / -9 | 2 | Partial capture |
| 08-14 19:04 | 160m | +3 / - | RO2E/M | - / -2 | 5 | Partial capture |
| 08-14 18:59 | 160m | 0 / -14 | R2UZ/P | -18 / -6 | 10 | Partial capture |
| 08-14 18:55 | 160m | +5 / -18 | R2UZ/P | -15 / -16 | 2 | Partial capture |
| 08-14 18:46 | 80m | +8 / -18 | DO9BAU | +9 / 0 | 7 | ✓ Full exchange observed |
| 08-14 18:43 | 80m | +9 / -13 | R6DOB/7 | -11 / -8 | 5 | Partial capture |
| 08-13 21:27 | 80m | - / - | F5RRS | +11 / - | 2 | Partial capture |
| 08-13 21:24 | 80m | +11 / +2 | R3ICU | -10 / -11 | 5 | ✓ Full exchange observed |
| 08-13 03:00 | 80m | - / -15 | R3EDI | +1 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 164845 -10 2477 RA7KW R9CS/P 73 164900 -5 791 RN3RFZ RA7KW R-08 164915 -18 1514 RA7KW RN3RFZ RR73 164930 -6 791 RN3RFZ RA7KW 73 173745 +3 692 RI1FJZ RA7KW KN74 (x5) 174000 +4 1295 RA7KW OK1DXR JO60 (x6)
UTC dB Audio Message 230845 +3 596 RA7KW RQ6B -13 (x4) 231015 +17 794 RA7KW DL3MIB JN57 231030 -5 1262 RQ6B RA7KW 73 231045 +17 794 RA7KW DL3MIB JN57 (x3) 231200 -5 1262 DL3MIB RA7KW -13 231215 +17 794 RA7KW DL3MIB R-19 231230 -5 1262 DL3MIB RA7KW RR73 231245 +17 794 RA7KW DL3MIB R-19 231300 -10 1262 DL3MIB RA7KW RR73 231315 +13 794 RA7KW DL3MIB 73
UTC dB Audio Message 223630 -1 967 RA7KW TA3NK KM39 223630 +9 2981 RA7KW F4BYA JN19 223700 +1 967 RA7KW TA3NK KM39 (x8) 230145 -19 1144 RA7KW RA3TVW -20 (x2) 231915 +4 385 RA7KW R3ST -19 (x3)
UTC dB Audio Message 111300 -14 1472 R3DMS RA7KW R-01 (x2) 111615 -18 1539 UB3YGA RA7KW KN74 091630 -9 910 RX6FN RA7KW KN74 (x2) 092445 -18 913 R4KK RA7KW KN74 092930 -17 914 RW3ZC RA7KW KN74 064845 -21 1560 UA3UBT RA7KW KN74 (x2) 084115 -16 1180 R6FMW RA7KW R-18 (x2) 080800 -5 1127 RA7KW DL3MIB JN57 (x4)
UTC dB Audio Message 092445 -23 1527 RA7KW R6OEY RR73
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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