JR1HFI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JR1HFI, decoded by SO8OO in southeastern Poland. 58 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-27.
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 58 FT8 messages attributed to JR1HFI as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (95%), followed by 40 m (5%). Several six-hour UTC windows tied for the largest share (86%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-08-27 20:41 UTC
Observed FT8 message patterns
- Attributed sample
- 58 messages
- Active dates
- 10 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -18 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 23.
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 JR1HFI in decoded directed-looking exchanges:
Most frequent locator attributed to JR1HFI
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
- QM05 · 38 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,798 km (approx.)
- Last such locator decoded
- 2026-08-27 20:41 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 | JR1HFI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 20:41 | 40m | - / -18 | CN8NS | -10 / - | 2 | ✓ Closing fragment |
| 09-17 20:38 | 40m | - / -14 | EA3EDU | -9 / - | 5 | ✓ Closing fragment |
| 09-17 20:38 | 40m | - / -11 | DK5WL | +5 / - | 3 | ✓ Closing fragment |
| 09-10 20:46 | 40m | - / -9 | RW3ZC | -6 / - | 2 | ✓ Closing fragment |
| 09-07 20:40 | 40m | - / - | SP5LST | -2 / - | 2 | Partial capture |
| 09-07 20:38 | 40m | - / -14 | IT9PHU | -4 / - | 2 | ✓ Closing fragment |
| 09-07 20:36 | 40m | - / -17 | LB7ZG | +4 / - | 3 | ✓ Closing fragment |
| 08-27 20:51 | 40m | - / -14 | EU1DE | 0 / - | 4 | ✓ Closing fragment |
| 08-27 20:46 | 40m | - / -19 | EA7ALL | +3 / - | 4 | ✓ Closing fragment |
| 08-27 20:40 | 40m | -17 / - | CN8NS | - / - | 3 | Partial capture |
| 08-26 17:41 | 40m | - / -13 | R7DX | +2 / - | 4 | ✓ Closing fragment |
| 08-26 17:36 | 40m | - / -1 | UR1CCT | +17 / - | 3 | ✓ Closing fragment |
| 08-26 17:35 | 40m | - / -23 | YO8RQP | -7 / - | 7 | ✓ Closing fragment |
| 08-18 19:59 | 40m | - / - | OK1WCF | -3 / - | 3 | ✓ Closing fragment |
| 08-18 19:35 | 40m | - / -18 | ON4ASV | +14 / - | 2 | ✓ Closing fragment |
| 08-18 19:06 | 40m | - / -16 | ON4AOI | +1 / - | 2 | ✓ Closing fragment |
| 08-16 21:37 | 20m | - / -12 | EI9IB | -5 / - | 2 | ✓ Closing fragment |
| 08-11 19:41 | 40m | - / -13 | UI7N | -9 / - | 3 | ✓ Closing fragment |
| 08-10 20:54 | 20m | - / -17 | EA3IE | -10 / - | 2 | ✓ Closing fragment |
| 08-10 20:48 | 20m | - / -7 | F4DJG | -6 / - | 3 | ✓ Closing fragment |
| 08-10 20:02 | 40m | - / -9 | LY1DY | -9 / - | 2 | ✓ Closing fragment |
| 08-09 21:33 | 20m | - / -18 | IN3VVK | +3 / - | 2 | ✓ Closing fragment |
| 08-08 17:55 | 40m | - / -10 | RM6LA | -16 / - | 2 | ✓ Closing fragment |
| 08-08 17:54 | 40m | - / -10 | UT1UY | +8 / - | 2 | ✓ Closing fragment |
| 08-08 17:52 | 40m | - / -15 | R3YAF | -6 / - | 4 | ✓ Closing fragment |
| 08-07 17:52 | 40m | - / -13 | ON8PB | -20 / - | 2 | Partial capture |
| 08-06 19:55 | 20m | -16 / -15 | EA8AT | -6 / -10 | 7 | Partial capture |
| 08-04 21:21 | 20m | - / -16 | IZ4EKI | -6 / - | 2 | Partial capture |
| 08-04 13:02 | 20m | - / 0 | R7DX | -15 / - | 3 | ✓ Closing fragment |
| 08-04 08:20 | 20m | - / -20 | RK6AAC | -9 / - | 3 | Partial capture |
| 07-31 20:58 | 20m | - / -6 | 9K2OK | -17 / - | 2 | ✓ Closing fragment |
| 07-31 20:46 | 20m | - / - | M0LAD | +6 / - | 3 | Partial capture |
| 07-30 14:09 | 20m | - / - | GM0SDV | -12 / - | 3 | Partial capture |
| 07-29 20:54 | 20m | - / - | M0CKX | -17 / - | 3 | Partial capture |
| 07-29 20:42 | 20m | - / -8 | GD3SKZ | -8 / - | 2 | Partial capture |
| 07-27 21:28 | 20m | - / -13 | EA5BLP | -2 / - | 3 | ✓ Closing fragment |
| 07-27 09:47 | 10m | - / -16 | ON5CD | +2 / - | 3 | ✓ Closing fragment |
| 07-23 14:30 | 20m | - / -5 | R3IX | -18 / - | 2 | ✓ Closing fragment |
| 07-23 12:17 | 20m | - / -10 | TK5K | +4 / - | 2 | ✓ Closing fragment |
| 07-14 20:16 | 20m | - / - | EA3PV | -1 / - | 2 | Partial capture |
| 07-14 18:58 | 40m | - / - | LY2PPS | -8 / - | 2 | Partial capture |
| 07-14 18:57 | 40m | - / -19 | DL3KWF | -9 / - | 2 | ✓ Closing fragment |
| 07-14 18:22 | 40m | - / -14 | YT7AW | 0 / - | 2 | ✓ Closing fragment |
| 07-14 18:18 | 40m | - / -10 | R3GW | -5 / - | 3 | ✓ Closing fragment |
| 07-14 18:14 | 40m | - / -10 | LY2HM | +1 / - | 2 | ✓ Closing fragment |
| 07-14 18:13 | 40m | - / -10 | SP3BPU | +6 / - | 7 | ✓ Closing fragment |
| 07-14 17:52 | 40m | - / -11 | RV4CC | +1 / - | 3 | ✓ Closing fragment |
| 07-14 17:46 | 40m | - / -19 | IZ8IEV | -18 / - | 5 | ✓ Closing fragment |
| 07-12 21:36 | 20m | - / -16 | 9K2YM | -3 / - | 2 | ✓ Closing fragment |
| 07-02 21:39 | 20m | - / -17 | II7WWA | -14 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 204645 -4 227 JR1HFI RW3ZC -09 (x2) 191100 -23 1295 JR1HFI UN7PPV RR73 203815 +6 1844 JR1HFI DK5WL JN39 203845 -9 1487 JR1HFI EA3EDU JN01 203845 +2 1844 JR1HFI DK5WL R-11 203915 -9 1487 JR1HFI EA3EDU JN01 203915 +7 1844 JR1HFI DK5WL 73 203945 -8 1487 JR1HFI EA3EDU R-14 (x2) 204015 +8 2724 JR1HFI DL1SRS JN49 204045 -11 1487 JR1HFI EA3EDU 73 204130 +0 1454 JR1HFI PD0IFI JO32 204130 -3 1886 JR1HFI CN8NS -18 (x2)
UTC dB Audio Message 195700 -16 1626 EA8AT JR1HFI R-12 195715 -6 504 JR1HFI EA8AT -15 195730 -17 1626 EA8AT JR1HFI R-10 201700 -9 2797 JR1HFI GM0SDV RRR 213300 +11 499 JR1HFI IN3VVK -18 (x2) 204800 -8 1496 JR1HFI F4DJG -07 (x3) 205100 -11 878 JR1HFI EA3IE JN01 (x3) 213700 -8 2233 JR1HFI EI9IB -12 (x2) 132630 -12 2637 JR1HFI BG7BVP R-08
UTC dB Audio Message 094730 +4 2615 JR1HFI ON5CD -16 (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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