R4CF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R4CF, decoded by SO8OO in southeastern Poland. 271 related FT8 messages, 99 CQ messages, observed on 80m, 40m, 20m, across 25 UTC dates. Heard between 2026-05-12 and 2026-07-30.
These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
Frequent QSO partners observed at SO8OO
Stations R4CF worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by R4CF
Approximate centre of LO42, decoded 2026-07-30 02:39 UTC. A transmitted locator is not proof of the operator's permanent location.
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 | R4CF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-30 02:43 | 20m | -18 / - | K5MGY | - / -9 | 3 | ✓ Closing fragment |
| 07-30 02:41 | 20m | -18 / - | KA9EKJ | - / -11 | 3 | ✓ Closing fragment |
| 07-30 02:01 | 20m | -15 / - | N2AWE | - / -14 | 3 | ✓ Closing fragment |
| 07-03 02:36 | 20m | 0 / -21 | RD9U | +7 / -7 | 5 | ✓ Full exchange observed |
| 07-03 02:32 | 20m | +4 / - | DL7RAY | - / -3 | 2 | ✓ Closing fragment |
| 07-03 02:28 | 20m | +3 / - | KT4MC | - / -8 | 2 | ✓ Closing fragment |
| 07-03 02:27 | 20m | +3 / -8 | WB8SCG | -23 / -9 | 3 | ✓ Full exchange observed |
| 07-03 02:15 | 20m | -16 / +1 | N8NZM | -7 / -3 | 4 | ✓ Full exchange observed |
| 07-03 02:13 | 20m | -20 / - | EA5INF | -10 / -14 | 2 | Partial capture |
| 07-03 02:06 | 20m | - / -5 | WA1NLG | -16 / - | 3 | ✓ Closing fragment |
| 07-03 01:52 | 20m | - / -7 | PY7XC | -2 / - | 2 | ✓ Closing fragment |
| 06-30 01:51 | 20m | +10 / - | F1IQH | - / -12 | 3 | ✓ Closing fragment |
| 06-30 01:49 | 20m | +5 / - | DK8HC | - / -24 | 2 | ✓ Closing fragment |
| 06-29 03:08 | 20m | -9 / -10 | R6TY | -3 / - | 3 | ✓ Closing observed |
| 06-19 03:18 | 20m | - / -18 | RW9WJ | -11 / - | 3 | Partial capture |
| 06-19 02:54 | 20m | - / -9 | RD7LC | -15 / - | 2 | ✓ Closing fragment |
| 06-19 01:48 | 20m | - / +4 | HI8ARJ | -8 / - | 2 | ✓ Closing fragment |
| 06-18 01:57 | 20m | -18 / - | ZL1UZM | - / - | 2 | ✓ Closing fragment |
| 06-18 01:27 | 20m | - / -1 | CN8NS | -9 / - | 3 | ✓ Closing fragment |
| 06-09 03:18 | 20m | - / - | R0AU | -12 / - | 4 | Partial capture |
| 06-09 03:14 | 20m | +18 / - | <...> | - / -13 | 4 | Partial capture |
| 06-09 03:07 | 20m | +11 / - | HC1BI | - / -20 | 7 | ✓ Closing fragment |
| 06-09 02:15 | 20m | -12 / +4 | IK4LZH | -6 / -1 | 4 | ✓ Full exchange observed |
| 06-09 02:11 | 20m | -12 / - | TA3XEE | - / -20 | 2 | ✓ Closing fragment |
| 06-09 02:07 | 20m | -18 / - | PY5DC | - / -24 | 2 | ✓ Closing fragment |
| 06-09 02:03 | 20m | -14 / - | PH7GD | - / -7 | 2 | ✓ Closing fragment |
| 06-09 01:36 | 20m | - / -20 | W3XOX | -1 / - | 5 | ✓ Closing fragment |
| 06-09 01:32 | 20m | - / -14 | EA3GXK | 0 / - | 5 | ✓ Closing fragment |
| 06-09 01:31 | 20m | - / - | KI5MWB | -16 / - | 3 | Partial capture |
| 06-09 01:28 | 20m | - / -11 | K4PEZ | -5 / - | 4 | ✓ Closing fragment |
| 06-09 01:25 | 20m | -15 / - | PD1HPB | -17 / - | 2 | ✓ Closing observed |
| 06-09 01:22 | 20m | - / -17 | K1HGT | -2 / - | 4 | ✓ Closing fragment |
| 06-08 01:42 | 20m | - / - | CO8CF | -23 / - | 2 | Partial capture |
| 06-05 01:29 | 20m | - / -21 | WB8UFC | -2 / - | 2 | Partial capture |
| 06-05 01:26 | 20m | - / -25 | KR4DUN | -19 / - | 2 | ✓ Closing fragment |
| 06-05 01:21 | 20m | - / -25 | VE3WNO | 0 / - | 3 | ✓ Closing fragment |
| 06-05 01:16 | 20m | - / -16 | W4UTZ | -10 / - | 4 | ✓ Closing fragment |
| 06-04 02:38 | 20m | -14 / - | VK5PO/P | - / - | 2 | Partial capture |
| 06-04 02:18 | 20m | - / -5 | CR7BUJ | -12 / - | 2 | ✓ Closing fragment |
| 06-04 02:11 | 20m | -17 / - | HK5R | - / - | 4 | Partial capture |
| 06-04 02:09 | 20m | -12 / - | VK5PO/P | - / - | 3 | Partial capture |
| 06-04 02:08 | 20m | -11 / - | TI5RR | - / -2 | 2 | ✓ Closing fragment |
| 06-04 01:18 | 20m | - / -14 | HK1X | -16 / - | 2 | Partial capture |
| 06-04 01:14 | 20m | -17 / - | KQ4FMB | - / -14 | 3 | Partial capture |
| 06-04 01:13 | 20m | - / - | PD9JPV | -14 / - | 3 | Partial capture |
| 06-03 02:31 | 20m | - / - | VE3WNO | -4 / - | 2 | Partial capture |
| 06-03 02:28 | 20m | -8 / - | RG3M | - / +10 | 2 | ✓ Closing fragment |
| 06-03 02:27 | 20m | -4 / -12 | R5AV | +2 / -9 | 4 | ✓ Full exchange observed |
| 06-03 02:24 | 20m | - / -15 | R5AV | +2 / - | 2 | Partial capture |
| 06-03 01:41 | 20m | - / - | DL2FX | -16 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 023245 -23 1540 R4CF RA4CA LO31 023630 -22 1541 PY2GR R4CF -15 023700 -20 1541 CQ R4CF LO42 (x5) 023930 -22 1541 F4EDB R4CF -10 024100 -22 1541 KA9EKJ R4CF -11 (x3) 024330 -17 1542 K5MGY R4CF -09 (x3) 015545 -8 913 R4CF DH2RL JN68
UTC dB Audio Message 013130 -14 1235 R4CF ON4MAP JO20 013145 -15 645 SP7TF R4CF R+08 013230 -12 1235 R4CF ON4MAP JO20 (x2)
UTC dB Audio Message 012400 -5 1514 R4CF CT1BFP IM59 012400 -2 1083 R4CF RM5F KO85 012415 -20 771 RM5F R4CF +14 012430 -4 1514 R4CF CT1BFP IM59 012430 -6 1083 R4CF RM5F R-10 012445 -22 771 RM5F R4CF RR73 012530 -4 1514 R4CF CT1BFP IM59 (x9)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.