JH5HDA — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving JH5HDA, decoded by SO8OO in southeastern Poland. 119 FT8 messages attributed to this token as transmitter, on 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-06-19.
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 119 FT8 messages attributed to JH5HDA as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (99%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 119 messages
- Active dates
- 11 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -22 to -11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 68, moderate (-15 to -9 dB) 48, strong (≥ -8 dB) 3.
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 JH5HDA in decoded directed-looking exchanges:
Most frequent locator attributed to JH5HDA
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
- PM63 · 93 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,540 km (approx.)
- Last such locator decoded
- 2026-06-19 22:22 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 | JH5HDA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-06 21:31 | 40m | - / -8 | 9A9A | -8 / - | 2 | ✓ Closing fragment |
| 11-06 21:29 | 40m | - / -11 | R6OP | -14 / - | 2 | ✓ Closing fragment |
| 11-06 13:49 | 40m | - / - | DG5CST | +6 / - | 2 | ✓ Closing fragment |
| 11-06 13:44 | 40m | - / -16 | DG5CST | +6 / - | 5 | Partial capture |
| 11-06 13:43 | 40m | - / -18 | RA3AJT | -3 / - | 3 | ✓ Closing fragment |
| 11-05 22:06 | 80m | - / -23 | SV2AEL | -7 / - | 2 | Partial capture |
| 11-05 20:44 | 80m | - / -18 | SV2AEL | -14 / - | 2 | Partial capture |
| 11-05 20:41 | 80m | - / -18 | OE8DDX | +12 / - | 2 | ✓ Closing fragment |
| 11-04 22:00 | 80m | - / -19 | 5B4AMM | +2 / - | 2 | ✓ Closing fragment |
| 10-31 22:10 | 40m | - / -15 | IZ5WTV | -9 / - | 5 | Partial capture |
| 10-30 21:27 | 40m | - / -16 | DJ7M | +6 / - | 2 | ✓ Closing fragment |
| 10-30 20:06 | 40m | - / -18 | DJ1SL | +3 / - | 2 | ✓ Closing fragment |
| 10-30 14:35 | 40m | - / -25 | OZ1SMB | -8 / - | 2 | ✓ Closing fragment |
| 10-30 14:33 | 40m | - / - | DL3CY | +20 / - | 2 | ✓ Closing fragment |
| 10-30 14:01 | 80m | - / -19 | OH4TQ | 0 / - | 2 | ✓ Closing fragment |
| 10-30 13:51 | 80m | - / -17 | RC9F | -16 / - | 3 | ✓ Closing fragment |
| 10-29 19:29 | 80m | - / -21 | DO5OT | +20 / - | 2 | ✓ Closing fragment |
| 10-29 18:59 | 40m | - / -25 | M5BFL | -4 / - | 2 | ✓ Closing fragment |
| 10-29 12:56 | 40m | - / -15 | UA4COP | -6 / - | 2 | Partial capture |
| 10-27 08:33 | 10m | - / -17 | CN8NS | -12 / - | 2 | ✓ Closing fragment |
| 10-23 21:56 | 40m | - / -17 | DL4DW | -14 / - | 2 | ✓ Closing fragment |
| 10-21 13:50 | 40m | - / -19 | UA9SHH | -15 / - | 2 | ✓ Closing fragment |
| 10-21 13:48 | 40m | - / -13 | RA1TL | +3 / - | 3 | Partial capture |
| 10-20 07:30 | 10m | - / - | SQ8DPZ | -14 / - | 2 | ✓ Closing fragment |
| 10-19 21:11 | 40m | - / -6 | YT2YZ | -8 / - | 3 | ✓ Closing fragment |
| 10-19 21:07 | 40m | - / -13 | OT7K | +17 / - | 2 | ✓ Closing fragment |
| 10-17 13:42 | 40m | - / -18 | OH7UE | -7 / - | 3 | ✓ Closing fragment |
| 10-16 21:11 | 80m | - / -18 | OT7K | +12 / - | 2 | ✓ Closing fragment |
| 10-16 21:04 | 80m | - / -20 | OT7K | +18 / - | 2 | Partial capture |
| 10-13 21:16 | 40m | - / -6 | F8MRQ | +4 / - | 5 | ✓ Closing fragment |
| 10-13 21:15 | 40m | - / -16 | IU5RPJ | +6 / - | 2 | ✓ Closing fragment |
| 10-13 20:33 | 40m | - / -16 | DF1SD | +14 / - | 2 | ✓ Closing fragment |
| 10-09 21:03 | 40m | - / -11 | EX7CQ | -11 / - | 2 | ✓ Closing fragment |
| 10-06 22:09 | 40m | - / -22 | LZ2II | -9 / - | 6 | ✓ Closing fragment |
| 10-06 21:13 | 40m | - / -13 | DA125RH | +13 / - | 2 | Partial capture |
| 10-04 20:56 | 40m | - / -12 | IQ9SZ/7 | -19 / - | 3 | Partial capture |
| 10-03 21:47 | 40m | - / -17 | RU5A | -16 / - | 2 | Partial capture |
| 10-02 21:57 | 40m | - / -25 | 3Z4DX | -11 / - | 2 | ✓ Closing fragment |
| 10-01 20:52 | 40m | - / -17 | R7DX | -10 / - | 6 | ✓ Closing fragment |
| 10-01 20:51 | 40m | - / -11 | OH2BGD | -3 / - | 2 | ✓ Closing fragment |
| 10-01 20:41 | 40m | - / -21 | HB9ELE | +18 / - | 7 | ✓ Closing fragment |
| 09-28 20:37 | 40m | - / -16 | R1BNJ | -16 / - | 2 | ✓ Closing fragment |
| 09-28 20:33 | 40m | - / -16 | EC1ALT | -12 / - | 2 | ✓ Closing fragment |
| 09-28 20:31 | 40m | - / -11 | R4RZ | -3 / - | 2 | ✓ Closing fragment |
| 09-28 19:50 | 40m | - / -6 | LX1JH | +3 / - | 2 | ✓ Closing fragment |
| 09-25 21:25 | 40m | - / -23 | IK2JYT | +12 / - | 2 | ✓ Closing fragment |
| 09-25 21:19 | 40m | - / -13 | IW3FOY | -12 / - | 2 | ✓ Closing fragment |
| 09-22 20:40 | 40m | - / -13 | OZ7CL | -6 / - | 2 | ✓ Closing fragment |
| 09-22 20:37 | 40m | - / -25 | ON5LW | +11 / - | 2 | ✓ Closing fragment |
| 09-22 20:36 | 40m | - / - | PD4JOH | -16 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 134315 -5 238 JH5HDA RA3AJT -18 (x3) 134445 +3 1597 JH5HDA DG5CST -16 (x7) 201745 -16 1427 JH5HDA E70SZ -15 212900 -13 1038 JH5HDA R6OP -11 (x2) 213100 -7 950 JH5HDA 9A9A -08 (x2)
UTC dB Audio Message 192900 +20 2906 JH5HDA DO5OT -21 (x2) 135145 -13 1822 JH5HDA RC9F R-17 (x3) 140115 -1 2454 JH5HDA OH4TQ -19 (x2) 220000 +3 2309 JH5HDA 5B4AMM -19 (x2) 204145 +10 2554 JH5HDA OE8DDX -18 (x2) 204445 -13 2163 JH5HDA SV2AEL -18 (x4)
UTC dB Audio Message 073000 -14 856 JH5HDA SQ8DPZ +27 (x2) 083330 -11 2219 JH5HDA CN8NS -17 (x2)
UTC dB Audio Message 221145 +6 2482 JH5HDA EA5OM -19 (x3) 221915 -5 631 JH5HDA M0OVG -24 (x3) 132800 -17 1717 JH5HDA UA9QFF -04 215630 +6 1968 JH5HDA IK4HLQ -19 (x7) 224130 -19 1942 JH5HDA 9A3MRN RR73
UTC dB Audio Message 202930 -1 1608 JH5HDA DL8LE JN68 (x11)
CW
No CW receptions recorded for this callsign in the last 30 days.
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