OH3CD — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving OH3CD, decoded by SO8OO in southeastern Poland. 874 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-30 and 2026-10-04.
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 874 FT8 messages attributed to OH3CD as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (46%), followed by 40 m (45%) and 20 m (7%). Most decodes (71%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.5 dB.
Overview
Bands
Last attributed message: 2026-10-04 12:55 UTC
Observed FT8 message patterns
- Attributed sample
- 874 messages
- Active dates
- 24 UTC dates
- Estimated median S/N
- -9.5 dB
- Estimated 10th-90th percentile
- -18 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 153, moderate (-15 to -9 dB) 338, strong (≥ -8 dB) 383.
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 OH3CD 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 OH3CD
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
- KP11 · 408 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,288 km (approx.)
- Last such locator decoded
- 2026-10-04 12:53 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 | OH3CD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-04 12:53 | 40m | -17 / - | SM5FWW | - / - | 3 | ✓ Closing fragment |
| 10-04 12:52 | 40m | -14 / -19 | SV2HTW | 0 / -11 | 3 | ✓ Full exchange observed |
| 10-04 12:50 | 40m | -16 / - | OK1DXR | - / - | 2 | Partial capture |
| 10-04 12:47 | 40m | -16 / -13 | OK1ZJK | +2 / 0 | 8 | ✓ Full exchange observed |
| 10-04 12:36 | 40m | -20 / -10 | S57ACD | -14 / -3 | 14 | ✓ Full exchange observed |
| 10-04 12:32 | 40m | -19 / - | G0HSP | - / - | 2 | ✓ Closing fragment |
| 10-04 12:29 | 40m | -16 / - | DL1DY | - / - | 2 | ✓ Closing fragment |
| 10-04 12:25 | 40m | -19 / - | 9A3TGT | -8 / -5 | 3 | Partial capture |
| 10-04 12:25 | 40m | -19 / - | M7SEY | - / 0 | 2 | Partial capture |
| 10-04 12:22 | 40m | -17 / - | DK1HSI | - / - | 2 | Partial capture |
| 10-04 12:18 | 40m | - / -8 | OE3FVU | -6 / - | 2 | ✓ Closing fragment |
| 10-03 17:14 | 10m | - / -10 | EA5FAY | -14 / - | 4 | Partial capture |
| 10-03 16:17 | 10m | - / -10 | CS7CDZ | -2 / - | 2 | ✓ Closing fragment |
| 10-02 14:46 | 40m | -8 / -14 | DG3AWF | -24 / -19 | 3 | Partial capture |
| 10-02 14:44 | 40m | -11 / - | YB2TTM | - / 0 | 2 | ✓ Closing fragment |
| 10-02 14:42 | 40m | -5 / - | OZ1BWX | - / -1 | 4 | ✓ Closing fragment |
| 10-02 14:40 | 40m | -8 / - | UN0LK | - / -1 | 2 | ✓ Closing fragment |
| 10-02 14:37 | 40m | -3 / -8 | YO3HUI | -12 / -6 | 4 | ✓ Full exchange observed |
| 10-02 14:36 | 40m | -7 / 0 | DL2BMH | -10 / -2 | 6 | ✓ Full exchange observed |
| 10-02 14:32 | 40m | -8 / - | YE9CPN | - / - | 2 | Partial capture |
| 10-02 14:30 | 40m | -9 / - | 9A6NCC | -2 / +7 | 4 | ✓ Closing observed |
| 10-02 14:28 | 40m | -2 / - | BD8ALJ | - / +8 | 3 | Partial capture |
| 10-02 14:25 | 40m | -6 / -15 | YT7PA | -2 / - | 4 | ✓ Closing observed |
| 10-02 14:24 | 40m | -6 / -2 | SP7VCL | +13 / - | 5 | ✓ Full exchange observed |
| 10-02 14:21 | 40m | -2 / - | BH8SDS | - / - | 2 | Partial capture |
| 10-02 14:20 | 40m | -2 / - | ON4AEO | - / - | 2 | Partial capture |
| 10-02 14:16 | 40m | -16 / - | F6BCL | - / -8 | 2 | Partial capture |
| 10-02 14:07 | 40m | -15 / -3 | OM2CW | 0 / +6 | 4 | ✓ Full exchange observed |
| 10-02 14:04 | 40m | -21 / - | ON4UR | - / - | 2 | Partial capture |
| 10-02 14:03 | 40m | -16 / -7 | HF5A | +1 / - | 5 | ✓ Full exchange observed |
| 10-02 13:58 | 40m | -20 / - | SM3JBO | - / - | 2 | ✓ Closing fragment |
| 10-02 13:57 | 40m | -16 / 0 | DL2USR | -16 / +10 | 4 | ✓ Full exchange observed |
| 10-01 19:44 | 40m | -12 / - | TK4TH | - / - | 2 | Partial capture |
| 10-01 19:37 | 40m | - / - | EA1KCN | -5 / - | 2 | Partial capture |
| 10-01 19:35 | 40m | -8 / - | M0LGV | - / - | 2 | Partial capture |
| 10-01 19:33 | 40m | -11 / - | LA4ROA | - / -12 | 4 | ✓ Closing fragment |
| 10-01 19:31 | 40m | -12 / - | EA8FB | - / - | 2 | Partial capture |
| 10-01 19:28 | 40m | -13 / - | SQ8AA | - / - | 3 | Partial capture |
| 10-01 19:26 | 40m | -8 / - | HF1Z | - / -15 | 3 | Partial capture |
| 10-01 19:23 | 40m | -5 / - | HF1Z | - / +4 | 2 | Partial capture |
| 10-01 19:22 | 40m | -3 / - | OK1ALF | - / +3 | 2 | ✓ Closing fragment |
| 10-01 19:20 | 40m | -7 / - | G0VRX | - / -15 | 3 | ✓ Closing fragment |
| 10-01 19:19 | 40m | -10 / - | OK1ALF | - / - | 2 | Partial capture |
| 10-01 19:16 | 80m | -10 / - | OK4KOP | - / - | 2 | Partial capture |
| 10-01 18:04 | 40m | +1 / - | YT2TW | - / -4 | 3 | Partial capture |
| 10-01 18:01 | 40m | -2 / -9 | II5GG | -2 / -2 | 5 | ✓ Full exchange observed |
| 10-01 18:00 | 40m | -5 / - | DD4U | - / +2 | 3 | ✓ Closing fragment |
| 10-01 17:58 | 40m | +1 / - | PA5COR | - / +6 | 3 | ✓ Closing fragment |
| 10-01 17:57 | 40m | -10 / -3 | M0MLS | -8 / - | 5 | ✓ Full exchange observed |
| 10-01 17:55 | 40m | -5 / - | OZ2LC | - / +4 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 173845 -4 556 OH3CD DH1KJ RR73 161745 -5 1096 OH3CD CS7CDZ -10 (x2) 171415 -18 1550 OH3CD EA5FAY -10 (x4) 142945 -4 598 OH3CD EA7L IM86
UTC dB Audio Message 124800 +6 533 OH3CD OK1ZJK -13 124815 -18 1088 OK1ZJK OH3CD R+00 124830 -5 533 OH3CD OK1ZJK -13 124845 -15 1088 OK1ZJK OH3CD R+00 124900 +5 533 OH3CD OK1ZJK RR73 124915 -16 1088 OK1ZJK OH3CD 73 124930 +2 533 OH3CD OK1ZJK 73 125045 -15 1088 OK1DXR OH3CD KP11 (x2) 125215 +0 761 OH3CD SV2HTW -19 125230 -14 1088 SV2HTW OH3CD R-11 (x2) 125345 -17 1088 SM5FWW OH3CD KP11 (x3)
UTC dB Audio Message 191230 -9 2184 OH3CD UV1IX -19 191245 -12 2720 UV1IX OH3CD R-11 191300 -3 2184 OH3CD UV1IX RR73 191315 -5 2719 UV1IX OH3CD 73 191345 -3 2720 F4JEJ OH3CD KP11 (x2) 191615 -9 2720 TA7DX OH3CD KP11 (x2) 191745 -3 2720 PJ2/W4IPC OH3CD KP11 153430 -16 1597 UN0GY OH3CD KP11 (x4) 191645 -10 2150 OK4KOP OH3CD KP11 (x2)
UTC dB Audio Message 193500 -1 2469 OH3CD SQ2HEB -20 (x2)
UTC dB Audio Message 173100 -14 1782 OH3CD ON7GB JO21 (x3) 173215 -19 1878 ON7GB OH3CD RRR 173230 -12 1783 OH3CD ON7GB 73 173330 +9 1342 OH3CD OM5ZW -01 (x2) 173415 -21 1879 OM5ZW OH3CD 73 173530 -12 654 OH3CD OZ/DG4BRT -13 173545 -15 1878 OZ/DF4ZL OH3CD R+01 174445 -7 821 SP6CIK OH3CD KP11 174500 -8 2167 OH3CD SP6CIK -07 174515 -10 821 SP6CIK OH3CD R+01 174530 -9 2167 OH3CD SP6CIK RR73 174545 -10 821 SP6CIK OH3CD 73
UTC dB Audio Message 165915 -1 799 OH3CD F4JUG -16 (x7) 171630 +1 606 OH3CD M6WRB -11 (x6) 090130 +3 1397 OH3CD UT0EP -06 (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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