EA7JHC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA7JHC, decoded by SO8OO in southeastern Poland. 98 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-17 and 2026-09-19.
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 98 FT8 messages attributed to EA7JHC as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (87%), followed by 40 m (13%). Several six-hour UTC windows tied for the largest share (82%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -5 dB.
Overview
Bands
Last attributed message: 2026-09-19 03:29 UTC
Observed FT8 message patterns
- Attributed sample
- 98 messages
- Active dates
- 15 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -14 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 63.
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 EA7JHC 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 EA7JHC
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
- IM76 · 42 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,613 km (approx.)
- Last such locator decoded
- 2026-09-11 04:40 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 | EA7JHC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-12 05:57 | 40m | - / - | M9XPN | -16 / - | 2 | ✓ Closing fragment |
| 09-12 05:44 | 40m | - / - | SP3IPA | -12 / - | 4 | Partial capture |
| 09-12 05:33 | 40m | - / -4 | DG1ROL | +9 / - | 3 | ✓ Closing fragment |
| 08-30 03:35 | 40m | - / -13 | EA5HM | -9 / - | 6 | ✓ Closing fragment |
| 08-30 03:31 | 40m | - / -9 | PS8RV | -15 / - | 3 | ✓ Closing fragment |
| 08-29 04:56 | 40m | -19 / - | K2AD | - / -4 | 2 | Partial capture |
| 08-29 04:53 | 40m | -10 / - | VE9LS | - / - | 2 | Partial capture |
| 08-27 17:03 | 20m | - / -1 | IN3PBO | -6 / - | 2 | Partial capture |
| 08-27 16:54 | 20m | -8 / - | YB7SKM | - / - | 2 | Partial capture |
| 08-25 16:23 | 20m | -10 / - | DL1YS | - / -1 | 2 | ✓ Closing fragment |
| 08-25 16:19 | 20m | -2 / - | UR5WCS | - / -10 | 7 | ✓ Closing fragment |
| 08-25 16:13 | 20m | -5 / -7 | G8ANJ | -7 / -12 | 7 | ✓ Full exchange observed |
| 08-25 16:13 | 20m | -3 / - | R7OV | - / -10 | 3 | ✓ Closing fragment |
| 08-25 16:11 | 20m | - / - | F1PPH | +9 / - | 4 | Partial capture |
| 08-25 16:11 | 20m | - / - | IK4LZH | -14 / - | 3 | Partial capture |
| 08-25 16:03 | 20m | -2 / -16 | 2E1HAT | +10 / -9 | 19 | ✓ Full exchange observed |
| 08-25 15:56 | 20m | -4 / - | IZ3XCA | - / -3 | 2 | ✓ Closing fragment |
| 08-25 15:54 | 20m | -2 / - | R1LP | - / -4 | 2 | ✓ Closing fragment |
| 08-25 15:53 | 20m | -4 / - | PG7R | - / -3 | 2 | ✓ Closing fragment |
| 08-25 15:50 | 20m | +3 / - | JG3LGD | - / - | 3 | Partial capture |
| 08-24 16:54 | 20m | +2 / - | ON3KCW | -12 / -12 | 4 | ✓ Closing observed |
| 08-24 16:52 | 20m | 0 / -21 | EI4HH | +3 / -8 | 5 | ✓ Full exchange observed |
| 08-24 16:49 | 20m | +2 / +8 | M7EOI | -5 / -5 | 5 | ✓ Full exchange observed |
| 08-24 16:47 | 20m | +2 / +4 | PD0PWH | -2 / -8 | 5 | ✓ Full exchange observed |
| 08-23 06:30 | 20m | - / - | HB9ITZ | -8 / - | 4 | ✓ Closing fragment |
| 08-23 06:13 | 20m | - / -11 | IS0KNG | -8 / - | 2 | ✓ Closing fragment |
| 08-23 06:11 | 20m | - / -5 | R3LDK | +4 / - | 4 | ✓ Closing fragment |
| 08-22 16:07 | 20m | -14 / - | DL1R | +2 / -11 | 10 | Partial capture |
| 08-22 15:54 | 20m | -2 / - | VR2VOG | - / - | 2 | Partial capture |
| 08-04 16:42 | 20m | - / -5 | DF0KK | +5 / - | 3 | ✓ Closing fragment |
| 07-19 07:50 | 20m | - / -9 | UR5VPR | -12 / - | 3 | ✓ Closing fragment |
| 07-19 07:44 | 20m | - / - | PD1ADA | -18 / - | 2 | Partial capture |
| 07-12 03:57 | 40m | - / - | F1PBZ | -17 / - | 2 | Partial capture |
| 07-05 17:38 | 20m | - / - | DM4GG | -12 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 043830 -16 970 CQ EA7JHC IM76 a1 043930 -15 970 KD3CMN EA7JHC RR73 044000 -11 970 CQ EA7JHC IM76 a1 044100 -9 970 PD1LVK EA7JHC RR73 053315 +10 301 EA7JHC DG1ROL JN58 (x3) 054445 -12 218 EA7JHC SP3IPA JO82 (x4) 055745 -16 1476 EA7JHC M9XPN IO91 (x2) 060245 +3 1023 EA7JHC DM2BM JO54 032900 -18 1199 JY5IB EA7JHC 73
UTC dB Audio Message 161900 -3 339 UR5WCS EA7JHC -10 (x7) 162230 -3 339 CQ EA7JHC IM76 (x2) 162330 -10 339 DL1YS EA7JHC -01 (x2) 165400 -8 413 YB7SKM EA7JHC IM76 (x2) 170330 -5 1035 EA7JHC IN3PBO -01 (x2)
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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