K4BTR — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving K4BTR, decoded by SO8OO in southeastern Poland. 197 related FT8 messages, observed on 40m, 20m, across 28 UTC dates. Heard between 2026-05-24 and 2026-08-22.
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.
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Overview
Frequent QSO partners observed at SO8OO
Stations K4BTR worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by K4BTR
Approximate centre of EM57, decoded 2026-08-23 01:17 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 | K4BTR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-23 01:15 | 20m | -20 / - | W2BJ | - / - | 2 | Partial capture |
| 08-23 00:58 | 20m | - / - | WB3JUV | -14 / - | 4 | Partial capture |
| 08-23 00:58 | 20m | -19 / - | K4A | - / - | 5 | Partial capture |
| 08-23 00:56 | 20m | -17 / - | N6FMD | - / - | 3 | Partial capture |
| 08-23 00:45 | 20m | -21 / -11 | 9K2MP | -14 / - | 3 | ✓ Closing observed |
| 08-07 21:42 | 20m | - / -13 | F1PBZ | -10 / - | 2 | Partial capture |
| 08-07 21:42 | 20m | - / - | IK4LZH | -7 / - | 3 | Partial capture |
| 08-07 21:26 | 20m | - / -22 | CN8NS | -13 / - | 2 | ✓ Closing fragment |
| 07-31 04:39 | 20m | - / -5 | F1SZC | +6 / - | 3 | ✓ Closing fragment |
| 07-31 04:37 | 20m | - / -4 | F5CKQ | -16 / - | 3 | Partial capture |
| 07-31 04:11 | 20m | - / - | UR9QQ | -16 / - | 2 | ✓ Closing fragment |
| 07-31 02:27 | 40m | - / -12 | DC1KN | -14 / - | 4 | Partial capture |
| 07-27 01:20 | 40m | - / -14 | LZ5UY | -21 / - | 2 | Partial capture |
| 07-27 01:08 | 40m | - / - | DK8HC | -10 / - | 2 | Partial capture |
| 07-25 03:08 | 20m | - / -17 | Z62NS | -8 / - | 3 | Partial capture |
| 07-20 02:52 | 20m | - / -8 | A41KB | -15 / - | 6 | Partial capture |
| 07-20 02:22 | 20m | - / -12 | HZ1TT | -14 / - | 3 | ✓ Closing fragment |
| 07-20 01:03 | 40m | - / -9 | MI0NWA | -12 / - | 2 | ✓ Closing fragment |
| 07-16 21:27 | 20m | - / -25 | <...> | -1 / - | 4 | ✓ Closing fragment |
| 07-16 03:26 | 40m | - / - | SV1BLD | -14 / - | 3 | Partial capture |
| 06-22 02:47 | 20m | - / -15 | CR7BRV | -9 / - | 2 | ✓ Closing fragment |
| 06-21 06:20 | 20m | - / -15 | OD5KU | -12 / - | 2 | ✓ Closing fragment |
| 06-21 06:16 | 20m | - / -15 | OD5KU | -10 / - | 4 | Partial capture |
| 06-20 07:12 | 20m | - / -10 | F5PBG | -9 / - | 3 | ✓ Closing fragment |
| 06-20 07:03 | 20m | - / - | PA1VW | -14 / - | 2 | Partial capture |
| 06-20 07:01 | 20m | - / -9 | F5NNN | -3 / - | 4 | ✓ Closing fragment |
| 06-20 06:58 | 20m | - / -10 | PD8RUK | +9 / - | 2 | ✓ Closing fragment |
| 06-20 06:36 | 20m | - / - | MI7RDK | -2 / - | 2 | Partial capture |
| 06-20 00:27 | 20m | - / -1 | EA1IOK | -1 / - | 6 | Partial capture |
| 06-20 00:20 | 20m | - / - | EA1FEP | -4 / - | 2 | Partial capture |
| 06-15 02:52 | 40m | - / - | F4JCU | -8 / - | 2 | Partial capture |
| 06-15 02:46 | 40m | - / -10 | PA4G | -4 / - | 5 | Partial capture |
| 06-14 00:40 | 20m | - / - | IK4LZH | +4 / - | 4 | Partial capture |
| 06-14 00:39 | 20m | - / - | EA1IOK | -2 / - | 6 | Partial capture |
| 06-12 03:09 | 40m | - / -9 | HB10GBT | -14 / - | 2 | Partial capture |
| 06-12 01:24 | 40m | - / -8 | F5PBG | -8 / - | 4 | ✓ Closing fragment |
| 06-08 02:43 | 40m | - / -21 | KP4DVM | -18 / - | 2 | ✓ Closing fragment |
| 06-08 02:43 | 40m | - / -7 | DK7ZT | -9 / - | 4 | Partial capture |
| 06-08 02:40 | 40m | - / -24 | F5RRS | 0 / - | 4 | ✓ Closing fragment |
| 06-05 02:16 | 40m | - / - | PD0DDA | -12 / - | 4 | Partial capture |
| 06-05 02:13 | 40m | - / -3 | IQ9BH | -6 / - | 4 | Partial capture |
| 06-01 21:23 | 20m | - / -14 | CT3IQ | -9 / - | 2 | ✓ Closing fragment |
| 05-31 03:50 | 40m | - / - | IK4LZH | +11 / - | 3 | Partial capture |
| 05-31 03:46 | 40m | - / - | IK4LZH | +10 / - | 3 | Partial capture |
| 05-31 03:44 | 40m | - / -8 | DK7ZT | -3 / - | 3 | Partial capture |
| 05-31 03:39 | 40m | - / - | F4BYA | +7 / - | 3 | Partial capture |
| 05-31 03:39 | 40m | - / - | IQ5VK | -6 / - | 3 | Partial capture |
| 05-31 03:34 | 40m | - / -4 | M1GTR | -17 / - | 3 | Partial capture |
| 05-29 00:12 | 40m | - / - | EA1CQ | -9 / - | 2 | Partial capture |
| 05-28 03:11 | 40m | - / -11 | DK7ZT | 0 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 005445 -18 1292 VE5UFO K4BTR R-15 005630 -16 1292 N6FMD K4BTR EM57 (x3) 005800 -18 1292 K4A K4BTR EM57 (x2) 005845 -18 1292 K4BTR WB3JUV +12 005900 -17 1292 K4A K4BTR EM57 005915 -12 1292 K4BTR WB3JUV +12 005930 -21 1292 K4A K4BTR EM57 005945 -16 1293 K4BTR WB3JUV R+12 010000 -19 1292 K4A K4BTR EM57 010015 -11 1293 K4BTR WB3JUV R+12 011530 -22 1386 W2BJ K4BTR EM57 (x2)
UTC dB Audio Message 010345 -11 755 K4BTR MI0NWA -09 (x2) 024445 -20 1463 K4BTR OY1R -04 025600 -18 1435 K4BTR SN1A -10 010715 -24 1770 K4BTR PD1CMP +01 010845 -10 598 K4BTR DK8HC JO42 (x2) 012030 -23 1323 K4BTR LZ5UY -14 (x2) 022715 -14 1907 K4BTR DC1KN -12 (x4) 012430 -15 1858 K4BTR 9K2GR -11 235900 -12 1905 K4BTR DK7ZT -16
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.