DF7AA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DF7AA, decoded by SO8OO in southeastern Poland. 258 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-29 and 2026-09-23.
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 258 FT8 messages attributed to DF7AA as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (53%), followed by 80 m (28%) and 160 m (10%). Most decodes (69%) 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 (65%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-09-23 05:08 UTC
Observed FT8 message patterns
- Attributed sample
- 258 messages
- Active dates
- 22 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -15 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 72, strong (≥ -8 dB) 168.
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 DF7AA 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 DF7AA
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
- JO51 · 113 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 779 km (approx.)
- Last such locator decoded
- 2026-09-23 05:07 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 | DF7AA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-06 11:35 | 40m | - / - | DL7PIA | -12 / - | 2 | ✓ Closing fragment |
| 09-23 05:07 | 80m | +5 / +1 | SN100PKP | +9 / -12 | 3 | Partial capture |
| 09-22 17:10 | 40m | - / - | DK8HC | 0 / - | 5 | Partial capture |
| 09-22 17:04 | 40m | -5 / +5 | SO100PKP | -2 / +2 | 3 | Partial capture |
| 09-22 04:51 | 80m | +1 / -1 | SO100PKP | -1 / - | 2 | Partial capture |
| 09-21 17:47 | 80m | +7 / - | HB3YOY | - / - | 2 | ✓ Closing fragment |
| 09-21 17:46 | 80m | +4 / - | DO9KB | - / - | 2 | Partial capture |
| 09-21 17:42 | 40m | -7 / - | HB10GBT | -4 / +3 | 3 | Partial capture |
| 09-21 04:58 | 80m | +10 / -2 | HB9EFK | +1 / - | 5 | ✓ Full exchange observed |
| 09-21 04:50 | 80m | +6 / -1 | SP100PKP | +11 / - | 2 | Partial capture |
| 09-20 18:07 | 160m | -16 / +6 | DL1RNW | +12 / - | 5 | ✓ Full exchange observed |
| 09-20 18:00 | 160m | -19 / - | DL2OO | - / - | 2 | Partial capture |
| 09-20 17:15 | 40m | -3 / +10 | HF100PKP | -6 / -4 | 2 | Partial capture |
| 09-20 07:38 | 40m | -11 / +10 | SN100PKP | -12 / +9 | 3 | Partial capture |
| 09-19 18:35 | 80m | -6 / +2 | 3Z100PKP | 0 / -9 | 2 | Partial capture |
| 09-19 18:34 | 80m | -6 / -9 | SN100PKP | +2 / -9 | 3 | Partial capture |
| 09-19 14:12 | 40m | -9 / +4 | 3Z100PKP | -4 / -9 | 2 | Partial capture |
| 09-19 14:04 | 40m | -12 / - | SP100PKP | -7 / -2 | 3 | Partial capture |
| 09-17 19:08 | 160m | - / -7 | OM3SX | -6 / - | 3 | ✓ Closing fragment |
| 09-14 19:42 | 80m | +2 / - | DP75BAC | - / -9 | 2 | Partial capture |
| 09-14 19:40 | 80m | +3 / -24 | UA4FKT | +6 / -9 | 3 | Partial capture |
| 09-14 19:39 | 80m | -2 / +1 | DB100FT | +2 / +5 | 3 | Partial capture |
| 09-14 19:31 | 160m | -8 / -4 | SP9ENV | -14 / 0 | 5 | ✓ Full exchange observed |
| 09-14 19:23 | 80m | +3 / - | G4MHJ | - / -13 | 2 | Partial capture |
| 09-14 19:22 | 80m | 0 / - | DO7MGA | - / -19 | 2 | ✓ Closing fragment |
| 09-14 19:22 | 80m | - / - | R4FDK | -7 / - | 7 | Partial capture |
| 09-12 15:18 | 40m | -6 / +8 | DJ0MAB | -2 / +1 | 6 | ✓ Full exchange observed |
| 09-12 15:18 | 40m | -4 / +7 | DL1DCT | -10 / - | 4 | ✓ Closing observed |
| 09-12 15:17 | 40m | -3 / -7 | SP100PKP | -5 / +5 | 3 | Partial capture |
| 09-11 19:48 | 160m | -14 / - | SO100PKP | - / +8 | 2 | Partial capture |
| 09-11 16:23 | 40m | -6 / -1 | SO100PKP | -16 / -3 | 3 | Partial capture |
| 09-10 11:00 | 40m | -14 / - | HF100PKP | - / -25 | 4 | Partial capture |
| 09-10 10:54 | 40m | -11 / - | SP100PKP | - / 0 | 5 | Partial capture |
| 09-09 18:48 | 80m | +6 / - | SQ100PKP | +13 / - | 2 | Partial capture |
| 09-09 18:41 | 40m | -6 / - | HF100PKP | - / - | 4 | Partial capture |
| 09-09 18:37 | 40m | -10 / - | SP100PKP | - / - | 2 | Partial capture |
| 09-09 08:26 | 40m | -12 / 0 | SN100PKP | -8 / -16 | 3 | Partial capture |
| 09-09 07:52 | 40m | -10 / +7 | 3Z100PKP | -15 / -1 | 3 | Partial capture |
| 09-08 18:57 | 40m | - / - | DG2EBG | -8 / - | 2 | Partial capture |
| 09-08 18:55 | 40m | -13 / -9 | PD4JOH | -14 / -23 | 4 | ✓ Full exchange observed |
| 09-06 18:56 | 160m | -2 / - | DL4ABN | -2 / -1 | 9 | ✓ Full exchange observed |
| 09-06 16:09 | 80m | -8 / +7 | SP9GCZ | +4 / -23 | 5 | ✓ Full exchange observed |
| 09-06 16:07 | 80m | -10 / - | DL0HAM | +6 / +9 | 4 | ✓ Full exchange observed |
| 09-06 05:42 | 40m | -6 / - | CR7BRV | - / -13 | 2 | ✓ Closing fragment |
| 09-06 05:34 | 40m | -7 / - | OZ7KJ/P | -1 / - | 4 | ✓ Closing observed |
| 09-06 05:33 | 40m | -9 / - | EA3HMM | - / - | 2 | ✓ Closing fragment |
| 09-06 05:30 | 80m | -4 / -19 | SP3IPA | +10 / - | 4 | ✓ Closing observed |
| 09-06 05:30 | 80m | - / - | YL2NX | -4 / - | 4 | Partial capture |
| 09-06 05:28 | 80m | -2 / +3 | DF8RU | -13 / +1 | 5 | ✓ Full exchange observed |
| 09-05 16:49 | 40m | - / -9 | RX9ABI | -8 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 174245 -4 2201 DF7AA HB10GBT +22 174300 -9 2201 HB10GBT DF7AA R+03 174400 -5 2200 RC9WC DF7AA R-01 170445 -6 1532 SO100PKP DF7AA JO51 170500 -2 1531 DF7AA SO100PKP +05 170515 -4 1531 SO100PKP DF7AA R+02 170900 -2 1483 DF7AA SN100PKP -01 171000 -3 597 DF7AA DK8HC JO42 (x5) 113515 -13 2320 DF7AA DL7PIA +25 (x2) 113615 -10 2319 DF7AA SP6AMI -14
UTC dB Audio Message 045900 +12 463 HB9EFK DF7AA R+21 045915 +0 461 DF7AA HB9EFK RR73 045930 +7 463 HB9EFK DF7AA 73 050030 +10 743 K3LL DF7AA JO51 174600 +3 1532 DO9KB DF7AA JO51 (x2) 174700 +7 1526 HB3YOY DF7AA JO51 (x2) 045115 +1 1644 SO100PKP DF7AA JO51 045130 -1 1642 DF7AA SO100PKP -01 050745 +4 1417 SN100PKP DF7AA JO51 050800 +9 1416 DF7AA SN100PKP +01 050815 +6 1417 SN100PKP DF7AA R-12 050830 +11 1416 DF7AA RR73; SP8CDZ <...> -06 175300 +4 859 DF7AA IN3IBW RR73
UTC dB Audio Message 193230 -14 1086 DF7AA SP9ENV 73 185600 -12 1752 DF7AA SQ100PKP -17 185630 -13 1752 DF7AA RR73; DJ4FAN <...> -18 190830 -4 237 DF7AA OM3SX KN08 (x3) 175945 -15 1582 CQ DF7AA JO51 180045 -19 1025 DL2OO DF7AA JO51 (x2) 180745 -7 530 DL1RNW DF7AA JO51 180800 +10 530 DF7AA DL1RNW +06 180815 -18 530 DL1RNW DF7AA R+11 180830 +13 530 DF7AA DL1RNW RR73 180845 -22 530 DL1RNW DF7AA 73 181030 -17 1767 S57AM DF7AA 73
UTC dB Audio Message 154645 -14 1724 DF7AA DD6ZV R-04 (x2) 054800 -19 1613 CQ DF7AA JO51 a1 054815 +10 1613 DF7AA HA7TM JN97 054830 -11 1613 HA7TM DF7AA +09 054845 +6 1613 DF7AA HA7TM R-04 054900 -9 1613 HA7TM DF7AA RR73 054915 +11 1613 DF7AA HA7TM 73 054930 -12 1613 DK7ZT DF7AA R+01 (x2) 055030 -16 1612 F5PBG DF7AA +02 (x2) 055230 -9 1613 CQ DF7AA JO51 (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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