KB1EFS — FT8 station from United States
Amateur radio station KB1EFS operating from United States (grid square JO21). 2,560 FT8 spots received at SO8OO WebSDR, 728 CQ calls, active on 160m, 80m, 60m, 40m, 20m, over 40 days, best SNR +27 dB. Heard between 2026-04-21 and 2026-06-13.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
2,560
Total spots
728
CQ calls
40
Days active
-7 dB
Avg SNR
Bands
80m
20m
60m
40m
160m
First seen: 2026-04-21
Last seen: 2026-06-13 14:48 UTC
Last seen: 2026-06-13 14:48 UTC
Frequent QSO partners observed at SO8OO
Stations KB1EFS worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | KB1EFS | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 06-13 16:46 | 20m | +3 / - | I0QMY | - / - | 3 | Partial |
| 06-13 16:46 | 20m | -10 / - | PD4RFS | - / - | 3 | Partial |
| 06-13 15:36 | 20m | -9 / - | UT6HN | - / -15 | 3 | ✓ Confirmed |
| 06-13 15:16 | 20m | -2 / - | MW7KFZ | - / -14 | 5 | ✓ Confirmed |
| 06-13 14:57 | 20m | +22 / - | G6CUT | - / -1 | 3 | ✓ Confirmed |
| 06-13 14:52 | 20m | +3 / - | 2E0WYA | - / - | 2 | Partial |
| 06-13 10:54 | 20m | -8 / - | DJ2CR | - / - | 4 | Partial |
| 06-13 10:51 | 20m | -2 / - | F4JVF | - / -24 | 2 | ✓ Confirmed |
| 06-13 10:48 | 20m | +4 / - | F4JVF | - / - | 2 | Partial |
| 06-13 10:41 | 20m | 0 / - | OE6FEF | - / -21 | 5 | ✓ Confirmed |
| 06-13 02:16 | 80m | -18 / - | EA7AH | - / - | 5 | Partial |
| 06-13 02:15 | 80m | +12 / - | SP7IIT | - / - | 4 | Partial |
| 06-13 02:14 | 80m | -13 / - | DO7BE | - / - | 4 | Partial |
| 06-13 02:14 | 80m | -1 / - | G6AD | - / -3 | 4 | ✓ Confirmed |
| 06-13 02:14 | 80m | +4 / - | OM0RX | - / - | 2 | Partial |
| 06-13 02:02 | 40m | -16 / - | R3BDQ | - / -18 | 2 | Partial |
| 06-13 01:52 | 40m | +8 / - | SP2KW | - / -14 | 15 | Partial |
| 06-13 01:45 | 40m | -11 / - | EB2EMZ | -11 / - | 2 | ✓ Verified |
| 06-13 01:38 | 40m | -13 / - | R3BDQ | - / -20 | 2 | Partial |
| 06-13 01:31 | 40m | +5 / - | SP2KW | - / - | 11 | Partial |
| 06-13 01:26 | 40m | -2 / - | EI3CTB | - / -16 | 2 | Partial |
| 06-13 01:22 | 40m | - / -18 | <...> | -10 / - | 2 | Partial |
| 06-13 01:22 | 40m | -14 / - | R3BDQ | - / -21 | 2 | Partial |
| 06-13 01:20 | 40m | +3 / - | SP2KW | - / - | 3 | Partial |
| 06-13 01:19 | 40m | -4 / - | IK4LZH | - / -7 | 2 | Partial |
| 06-13 01:14 | 40m | -20 / - | ON4MAP | - / - | 3 | Partial |
| 06-13 01:14 | 40m | +2 / - | SP2KW | - / - | 4 | Partial |
| 06-12 20:14 | 20m | -5 / - | ON4CFC | - / -19 | 2 | Partial |
| 06-12 20:12 | 20m | -4 / - | G5TV | - / -11 | 2 | Partial |
| 06-11 22:35 | 40m | -2 / - | DR800WE | - / -24 | 2 | Partial |
| 06-05 23:01 | 20m | -8 / - | IK4LZH | - / - | 2 | Partial |
| 06-04 01:38 | 40m | -8 / - | G8OO | - / - | 4 | Partial |
| 06-04 01:27 | 40m | -9 / - | G8OO | - / - | 4 | Partial |
| 06-04 01:24 | 40m | +6 / - | RA6OY | - / - | 5 | Partial |
| 06-04 01:16 | 40m | 0 / - | IQ0VT | - / -17 | 3 | ✓ Confirmed |
| 06-04 01:05 | 20m | -2 / - | IK4LZH | - / - | 2 | Partial |
| 06-03 02:22 | 20m | - / - | PD4RJ | -16 / - | 2 | Partial |
| 06-03 02:17 | 20m | - / -16 | KG7LTG | -12 / - | 2 | Partial |
| 06-03 02:11 | 20m | - / - | W4MJZ | -19 / - | 3 | Partial |
| 06-03 01:05 | 40m | -5 / - | IQ9BH | - / -8 | 2 | Partial |
| 06-03 00:57 | 40m | -5 / - | EG53DMM | - / -10 | 2 | Partial |
| 06-03 00:51 | 40m | -8 / - | EG5SUN | - / -17 | 3 | ✓ Confirmed |
| 06-02 23:38 | 20m | - / -15 | IZ1HJU | -6 / - | 2 | Partial |
| 06-02 23:32 | 20m | - / - | IZ1HJU | -4 / - | 4 | Partial |
| 06-02 23:29 | 20m | -6 / - | WA1S | - / -14 | 2 | ✓ Confirmed |
| 06-02 04:35 | 20m | -9 / - | TA3NK | - / - | 7 | Partial |
| 06-01 01:38 | 80m | +8 / -21 | LZ1SAD | -24 / - | 5 | Partial |
| 06-01 01:34 | 80m | +4 / - | DO1KHW | - / -25 | 6 | Partial |
| 06-01 01:33 | 80m | -22 / - | HB9MZI | - / - | 2 | Partial |
| 06-01 01:30 | 80m | +14 / - | DL1OBF | - / -17 | 3 | ✓ Confirmed |
Station Log
20m
UTC dB Freq Message 153100 +0 2472 KB1EFS UT6HN KN69 153330 -16 2678 KB1EFS G4CFS R-16 153630 -10 2468 KB1EFS UT6HN KN69 (x3) 155145 -6 2814 K8DF KB1EFS RR73 162130 -4 2813 KB1EFS IK5ZPV JN53 164630 -10 2182 KB1EFS PD4RFS JO21 164630 +3 2812 KB1EFS I0QMY JN61 164700 -12 2181 KB1EFS PD4RFS JO21 164700 +0 2812 KB1EFS I0QMY JN61 (x2) 164800 -9 2181 KB1EFS PD4RFS JO21 (x2) 170930 -11 581 KB1EFS ON7CFX JO20
80m
UTC dB Freq Message 021545 -17 866 CQ KB1EFS FN14 a1 021600 -24 703 KB1EFS DO7BE JO64 021600 -24 1801 KB1EFS EA7AH IM67 021600 +11 1230 KB1EFS SP7IIT KO00 021600 -5 868 KB1EFS G6AD -03 021630 -22 1802 KB1EFS EA7AH IM67 021630 +13 1230 KB1EFS SP7IIT KO00 021630 -1 868 KB1EFS G6AD RR73 021700 -24 1802 KB1EFS EA7AH IM67 021700 +13 1230 KB1EFS SP7IIT KO00 021730 -8 503 KB1EFS DO7BE JO64 (x2) 021830 -19 868 KB1EFS HB9MZI JN46 021900 -12 1802 KB1EFS EA7AH IM67 (x2)
40m
UTC dB Freq Message 015845 +8 484 KB1EFS SP2KW R-14 (x3) 020100 -10 484 CQ KB1EFS FN14 a1 020245 -22 1955 KB1EFS R3BDQ -18 020330 -8 484 EA4AC KB1EFS RR73 020400 -10 484 K5UUT KB1EFS R-08 020415 -11 484 KB1EFS R3BDQ -18 020800 -9 484 CQ KB1EFS FN14 (x7)
160m
UTC dB Freq Message 022430 -14 970 KB1EFS EC1AIJ -21 023200 +11 2452 KB1EFS IQ4JO -21 023230 -8 971 KB1EFS EC1AIJ -24 211800 +9 2596 KB1EFS SQ9DJQ -05 (x6)
60m
UTC dB Freq Message 021745 -16 1179 KB1EFS OM1II RR73 (x2) 022815 -13 1052 KB1EFS F1IQH JN27 005545 +1 1337 KB1EFS HB9DVO JN47 005645 -21 1116 KB1EFS EB2FBI IN93 005645 +5 1337 KB1EFS HB9DVO JN47 005715 -20 1116 KB1EFS EB2FBI IN93 005715 +5 1337 KB1EFS HB9DVO R-20 (x2) 005845 -15 1884 KB1EFS F8BJK/P RR73 (x2) 011030 +2 2483 KB1EFS DD0AM RR73 011430 +2 684 KB1EFS F1PBZ -14 005345 -22 1974 KB1EFS EA5JLB -15 (x2)