DD3HB — 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 DD3HB, decoded by SO8OO in southeastern Poland. 83 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-10-22.
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 83 FT8 messages attributed to DD3HB as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (49%), followed by 40 m (36%) and 80 m (14%). Most decodes (86%) fell within the six-hour window 12:00-18:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-10-22 08:32 UTC
Observed FT8 message patterns
- Attributed sample
- 83 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -14 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 26, strong (≥ -8 dB) 53.
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 DD3HB 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 DD3HB
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
- JO64 · 50 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 784 km (approx.)
- Last such locator decoded
- 2026-10-22 08:27 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 | DD3HB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 09:42 | 10m | - / -13 | 5Z4VJ | -22 / - | 2 | ✓ Closing fragment |
| 10-22 08:29 | 40m | -12 / - | PD1UM | - / -1 | 6 | ✓ Closing fragment |
| 10-22 08:28 | 40m | -12 / - | PD3FCA | - / -5 | 2 | Partial capture |
| 10-22 08:25 | 40m | -12 / +2 | PC2F | -12 / - | 3 | ✓ Closing observed |
| 09-12 17:36 | 80m | - / - | LZ2VQ | -8 / - | 3 | Partial capture |
| 09-12 17:35 | 80m | - / -9 | OE5ABL | -6 / - | 2 | Partial capture |
| 09-12 17:33 | 80m | - / 0 | DO4TYW | -16 / - | 2 | ✓ Closing fragment |
| 09-12 17:29 | 80m | 0 / +1 | SA3CAT | +10 / +1 | 5 | ✓ Full exchange observed |
| 09-12 17:29 | 80m | - / - | LZ2VQ | 0 / - | 2 | Partial capture |
| 09-12 17:26 | 80m | - / -14 | OE5ABL | +13 / - | 3 | Partial capture |
| 09-12 17:21 | 40m | -6 / - | DJ0MAB | -5 / -10 | 4 | ✓ Closing observed |
| 08-25 11:04 | 20m | - / - | RA1QX | -13 / - | 4 | Partial capture |
| 08-25 10:58 | 20m | - / +3 | F5IXN | +10 / - | 3 | ✓ Closing fragment |
| 08-25 10:55 | 20m | - / -12 | IQ4JO | +1 / - | 3 | ✓ Closing fragment |
| 08-18 14:03 | 10m | -16 / - | CA6SNT | - / -17 | 2 | Partial capture |
| 08-18 13:54 | 10m | -4 / - | SM5MEK | - / -7 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 134930 -7 2565 CQ DD3HB JO64 (x7) 135430 -3 2565 SM5MEK DD3HB -07 (x2) 140300 -19 1296 CA6SNT DD3HB JO64 (x2) 141030 -9 792 CQ DD3HB JO64 092315 -16 1204 DD3HB IU0SIB 73 094245 -21 2184 DD3HB 5Z4VJ -13 (x2)
UTC dB Audio Message 082515 -12 633 DD3HB PC2F JO22 (x2) 082600 -12 633 PC2F DD3HB RR73 082630 -12 633 CQ DD3HB JO64 (x2) 082715 -9 633 DD3HB PD1UM JO30 082800 -11 633 PD3FCA DD3HB -05 (x2) 082930 -15 2423 PD1UM DD3HB -01 (x6) 083915 -17 1671 DD3HB F1HFP JN28
UTC dB Audio Message 172930 -6 705 DD3HB LZ2VQ KN23 172945 +0 2812 SA3CAT DD3HB JO64 173000 +11 2812 DD3HB SA3CAT +01 173015 +0 2812 SA3CAT DD3HB R+01 173030 +9 2812 DD3HB SA3CAT RR73 173045 +0 2812 SA3CAT DD3HB 73 173145 -10 2292 CQ DD3HB JO64 173330 -21 1397 DD3HB DO4TYW +00 (x2) 173500 -14 1396 DD3HB OE5ABL -09 (x2) 173545 -11 1397 CQ DD3HB JO64 a1 173600 -5 1396 DD3HB LZ2VQ KN23 (x3)
UTC dB Audio Message 105415 -24 1807 DD3HB M7YVZ R-08 105545 +2 2288 DD3HB IQ4JO JN63 (x3) 105745 +8 714 DD3HB F1ODM RR73 105815 +11 715 DD3HB F5IXN JN23 (x3) 110415 -15 1781 DD3HB RA1QX KO99 (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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