YC9HJD — 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 YC9HJD, decoded by SO8OO in southeastern Poland. 66 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-10-01.
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 66 FT8 messages attributed to YC9HJD as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (64%), followed by 40 m (30%) and 20 m (3%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (85%); the estimated median was +1 dB.
Overview
Bands
Last attributed message: 2026-10-01 17:46 UTC
Observed FT8 message patterns
- Attributed sample
- 66 messages
- Active dates
- 14 UTC dates
- Estimated median S/N
- +1 dB
- Estimated 10th-90th percentile
- -19 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 56.
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 YC9HJD 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 YC9HJD
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
- OI81 · 46 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 11,102 km (approx.)
- Last such locator decoded
- 2026-09-19 16:12 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 | YC9HJD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 19:04 | 80m | - / -19 | SV2DCD | +9 / - | 4 | Partial capture |
| 10-16 15:36 | 10m | - / - | EA5BYS | -2 / - | 3 | Partial capture |
| 10-13 15:41 | 80m | - / - | HA7XL | +15 / - | 8 | Partial capture |
| 10-13 15:25 | 80m | - / -9 | LY7M | +8 / - | 2 | ✓ Closing fragment |
| 10-12 16:10 | 80m | - / - | HA7XL | +19 / - | 8 | Partial capture |
| 10-12 16:00 | 80m | - / - | PA0O | +3 / - | 6 | Partial capture |
| 10-12 15:52 | 80m | - / - | PA0O | +7 / - | 7 | Partial capture |
| 10-12 15:44 | 80m | - / - | PA0O | -2 / - | 11 | Partial capture |
| 10-12 15:38 | 80m | - / - | PA0O | -5 / - | 7 | Partial capture |
| 10-11 13:23 | 40m | - / - | UA3GDJ | -12 / - | 4 | Partial capture |
| 10-08 17:22 | 80m | - / -20 | OH1MLZ | +10 / - | 2 | ✓ Closing fragment |
| 10-05 17:31 | 80m | - / - | IZ5NRF | +4 / - | 5 | Partial capture |
| 10-05 17:30 | 80m | - / - | ON4IQ | +12 / - | 2 | Partial capture |
| 10-05 17:29 | 80m | - / -16 | IZ8VYU | +12 / - | 5 | ✓ Closing fragment |
| 10-01 17:48 | 80m | - / +2 | EB5JKV | -5 / - | 3 | Partial capture |
| 10-01 17:47 | 80m | - / - | DL4ALI | +14 / - | 2 | Partial capture |
| 10-01 17:47 | 80m | - / - | IU0RKJ | +3 / - | 4 | Partial capture |
| 10-01 17:47 | 80m | - / - | PA3KUS | 0 / - | 3 | Partial capture |
| 10-01 17:46 | 80m | - / - | DF2GH | +12 / - | 2 | Partial capture |
| 10-01 17:46 | 80m | - / - | HB9ALO | -1 / - | 4 | Partial capture |
| 10-01 17:46 | 80m | - / - | ON8GT | +14 / - | 4 | Partial capture |
| 10-01 17:46 | 80m | - / -12 | R2EA | 0 / - | 2 | Partial capture |
| 10-01 17:46 | 80m | - / - | DG5CST | +14 / - | 12 | Partial capture |
| 10-01 17:46 | 80m | +12 / - | A41DV | - / -8 | 2 | ✓ Closing fragment |
| 09-29 16:49 | 80m | - / -16 | LA9GX | -3 / - | 2 | ✓ Closing fragment |
| 09-25 17:27 | 80m | - / -19 | F5UKW | +8 / - | 7 | ✓ Closing fragment |
| 09-21 19:08 | 80m | - / - | DO1BRD | +6 / - | 6 | Partial capture |
| 09-21 19:07 | 80m | - / -5 | UA3GJM | 0 / - | 2 | Partial capture |
| 09-21 19:07 | 80m | - / - | EA1IOK | -8 / - | 5 | Partial capture |
| 09-21 19:07 | 80m | - / - | IU2LVV | +12 / - | 2 | Partial capture |
| 09-21 19:07 | 80m | - / - | LY2PAD | +6 / - | 4 | Partial capture |
| 09-21 19:07 | 80m | - / -10 | R7KKO | -6 / - | 2 | Partial capture |
| 09-21 19:06 | 80m | - / - | F5UKW | +10 / - | 4 | Partial capture |
| 09-21 19:06 | 80m | +11 / -16 | JY4CI | -15 / -11 | 4 | ✓ Full exchange observed |
| 09-19 18:24 | 40m | - / - | 2E0TFC | -8 / - | 2 | Partial capture |
| 09-19 16:20 | 80m | - / - | OH3NXW | +5 / - | 3 | Partial capture |
| 09-19 16:17 | 80m | -19 / - | UK7AL | - / -18 | 2 | Partial capture |
| 09-19 16:11 | 80m | -19 / - | UK7AL | - / - | 3 | Partial capture |
| 09-19 16:10 | 80m | - / - | OH3NXW | +10 / - | 2 | Partial capture |
| 09-19 16:08 | 80m | - / - | OH4SS | -3 / - | 2 | Partial capture |
| 09-16 16:41 | 80m | - / -10 | Z31PM | 0 / - | 4 | Partial capture |
| 09-07 16:18 | 40m | - / - | LB7ZG | +10 / - | 2 | Partial capture |
| 09-07 16:14 | 40m | - / 0 | SP5RZL | -6 / - | 2 | Partial capture |
| 09-07 16:14 | 40m | - / - | UR1CCT | +14 / - | 2 | Partial capture |
| 09-07 16:10 | 40m | 0 / - | Z68BR | - / +2 | 7 | ✓ Closing fragment |
| 09-05 17:11 | 80m | - / -18 | RK4PR | -7 / - | 3 | Partial capture |
| 09-05 17:10 | 80m | - / - | YO6BLU | +14 / - | 8 | Partial capture |
| 09-05 17:09 | 80m | - / - | SV8JE | +3 / - | 3 | Partial capture |
| 09-05 17:08 | 80m | - / - | HA1RJ | +13 / - | 9 | Partial capture |
| 09-05 17:07 | 80m | +6 / - | JY4CI | - / -25 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 161700 +21 2500 YC9HJD HA7XL JN97 152545 +6 2000 YC9HJD LY7M -09 (x2) 154145 +20 2652 YC9HJD HA7XL JN97 (x8) 190445 +5 2944 YC9HJD SV2DCD -19 (x4)
UTC dB Audio Message 153630 -9 319 YC9HJD EA5BYS IM97 (x3)
UTC dB Audio Message 161400 +12 946 YC9HJD UR1CCT KN69 161400 -5 1032 YC9HJD SP5RZL +00 161400 -24 1536 YC9HJD RR73; SM2LIY <...> +12 161415 +0 1805 Z68BR YC9HJD 73 161430 +15 946 YC9HJD UR1CCT KN69 161430 -6 1033 YC9HJD SP5RZL +02 161500 -12 2609 YC9HJD 5Q1X JO45 161815 +13 2865 YC9HJD LB7ZG JP50 (x2) 182430 -10 1558 YC9HJD 2E0TFC IO83 (x2) 132315 -8 2343 YC9HJD UA3GDJ KO92 (x4)
UTC dB Audio Message 162715 -11 1118 YC9HJD CS8ABF -08 180445 -6 2602 YC9HJD MM3RCR +08 (x4)
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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