SI4A — FT8 station from Sweden
Amateur radio station SI4A operating from Sweden. 106 FT8 spots received at SO8OO WebSDR, 1 CQ calls, active on 80m, 60m, 40m, 20m, over 16 days, best SNR +11 dB. Heard between 2026-04-22 and 2026-07-19.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
106
Total spots
1
CQ calls
16
Days active
-9 dB
Avg SNR
Bands
80m
40m
20m
60m
First seen: 2026-04-22
Last seen: 2026-07-19 21:08 UTC
Last seen: 2026-07-19 21:08 UTC
Frequent QSO partners observed at SO8OO
Stations SI4A worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | SI4A | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 07-20 03:25 | 40m | - / - | KZ4NS | -16 / - | 2 | ✓ Confirmed |
| 07-20 03:23 | 40m | - / -14 | F6FHZ | -16 / - | 2 | ✓ Confirmed |
| 07-20 03:22 | 40m | - / -10 | W4GGJ | -15 / - | 2 | ✓ Confirmed |
| 07-20 03:21 | 40m | - / -14 | NW5X | -14 / - | 2 | ✓ Confirmed |
| 07-20 03:19 | 40m | - / -7 | KK4CDK | -16 / - | 2 | ✓ Confirmed |
| 07-20 03:17 | 40m | - / -18 | XQ3SK | -17 / - | 4 | ✓ Confirmed |
| 07-20 03:15 | 40m | - / -25 | SV1SFZ | -15 / - | 2 | Partial |
| 07-20 03:14 | 40m | - / -5 | <...> | -16 / - | 2 | Partial |
| 07-20 03:12 | 40m | - / -17 | AA9JC | -16 / - | 2 | Partial |
| 07-20 03:09 | 40m | - / -16 | N8A | -13 / - | 4 | Partial |
| 07-20 03:07 | 40m | - / -10 | YY5AEZ | -17 / - | 3 | ✓ Confirmed |
| 07-20 03:05 | 40m | - / -7 | HI3QMT | -16 / - | 3 | ✓ Confirmed |
| 07-20 03:03 | 40m | - / - | N8A | -18 / - | 3 | Partial |
| 07-20 02:58 | 80m | - / - | KF9UG | 0 / - | 3 | Partial |
| 07-19 23:06 | 40m | -11 / - | DL9KM | - / - | 5 | ✓ Confirmed |
| 07-19 23:05 | 40m | -13 / - | F5PBG | - / - | 2 | Partial |
| 07-18 18:38 | 40m | - / - | T22TT | -13 / - | 2 | Partial |
| 07-18 18:16 | 40m | -19 / - | RA3SI | - / +4 | 3 | ✓ Confirmed |
| 06-21 12:55 | 20m | -22 / - | F4HSB | - / - | 2 | ✓ Confirmed |
| 06-20 22:12 | 40m | - / -12 | 2D0VPS/P | -19 / - | 5 | ✓ Confirmed |
| 06-20 22:05 | 60m | -19 / -9 | IK5CHL | -15 / -6 | 3 | ✓ Complete |
| 06-20 22:02 | 60m | - / -18 | LU3CQ | -16 / - | 6 | ✓ Confirmed |
| 06-20 21:37 | 80m | +6 / - | RU3DNN | -14 / -7 | 4 | ✓ Verified |
| 06-20 21:36 | 80m | +5 / - | OL900JAR | - / -1 | 2 | ✓ Confirmed |
| 06-20 21:36 | 80m | - / +6 | <...> | -8 / - | 2 | Partial |
| 06-20 19:33 | 40m | -6 / - | G3WGC | - / - | 2 | Partial |
| 06-20 19:31 | 40m | -12 / - | SP1EG | - / -5 | 2 | Partial |
| 06-15 04:36 | 20m | - / -19 | KD4DRJ | -4 / - | 2 | Partial |
| 06-15 04:33 | 20m | - / -10 | N3RC | -4 / - | 2 | Partial |
| 06-15 04:31 | 20m | -3 / -4 | R6OY | -6 / +4 | 7 | ✓ Complete |
| 05-26 03:36 | 80m | - / - | HI4T | -24 / - | 2 | Partial |
| 05-25 17:00 | 20m | -18 / - | A41KB | - / -8 | 3 | ✓ Confirmed |
| 05-24 18:30 | 40m | - / - | EX8ABR/P | -10 / - | 2 | Partial |
| 05-23 07:56 | 10m | - / - | P29XZ | +4 / - | 6 | Partial |
| 05-22 14:06 | 10m | - / -2 | UT3KW | -8 / - | 2 | ✓ Confirmed |
| 05-22 14:04 | 10m | - / -13 | UR5WAI | -14 / - | 2 | ✓ Confirmed |
| 05-22 14:02 | 10m | - / -15 | S56A | -6 / - | 2 | ✓ Confirmed |
| 05-22 14:01 | 10m | - / -8 | F4IIX | -12 / - | 2 | ✓ Confirmed |
| 05-22 13:59 | 10m | - / - | 4U1ITU | -14 / - | 2 | ✓ Confirmed |
| 05-21 12:00 | 20m | -16 / -6 | F5MXH | -6 / -18 | 3 | ✓ Complete |
| 05-21 11:58 | 20m | - / -14 | 9A5AZK | -3 / - | 2 | Partial |
| 05-21 11:57 | 20m | - / +8 | HG8LXL | 0 / - | 2 | ✓ Confirmed |
| 05-21 11:55 | 20m | +10 / - | R7ZS | 0 / +10 | 5 | ✓ Complete |
| 05-20 20:22 | 60m | -6 / - | 9A1CCB | -19 / -14 | 4 | ✓ Verified |
| 05-20 20:20 | 60m | -18 / - | ES1REV | -17 / +2 | 2 | ✓ Verified |
| 05-20 20:20 | 60m | -11 / - | PA0EBG | - / -8 | 4 | ✓ Confirmed |
| 05-20 20:14 | 60m | - / -12 | TF3AK | -17 / - | 2 | ✓ Confirmed |
| 05-20 20:10 | 60m | -13 / - | EB3JT | -14 / -15 | 5 | ✓ Verified |
| 05-20 20:10 | 60m | -5 / - | PH2M | - / -10 | 4 | ✓ Confirmed |
| 05-20 20:09 | 60m | -18 / -5 | EC3A | -17 / -6 | 3 | ✓ Complete |
Station Log
40m
UTC dB Freq Message 031745 -15 1838 XQ3SK SI4A JO69 (x3) 031945 -16 1811 KK4CDK SI4A -07 (x2) 032115 -13 1811 NW5X SI4A -14 (x2) 032215 -15 1810 W4GGJ SI4A -10 (x2) 032345 -16 1810 F6FHZ SI4A -14 (x2) 032545 -18 1810 KZ4NS SI4A 73 (x2) 032715 -15 1810 HI3K SI4A JO69 033415 -16 1811 HI3JMS SI4A JO69
80m
UTC dB Freq Message 211915 -2 800 TJ1GD SI4A JO69 032900 -20 1924 N7JB SI4A JO69 033630 -24 1579 HI4T SI4A JO69 (x2) 213630 -10 1531 <...> SI4A JO69 213645 +1 1910 SI4A OL900JAR -01 213700 -7 1531 <...> SI4A R+06 213745 +5 934 SI4A RU3DNN KO96 213815 +9 1910 <SI4A> OL900JAR RR73 213815 +8 934 SI4A RU3DNN R-07 213830 -14 1531 RU3DNN SI4A RR73 213845 +6 934 SI4A RU3DNN 73 025800 -1 2153 KF9UG SI4A JO69 (x3)
20m
UTC dB Freq Message 171115 -12 1516 SI4A IW1QBR JN44 043130 -16 1358 R6OY SI4A JO69 (x2) 043215 -1 1410 SI4A R6OY +04 043230 -4 1410 R6OY SI4A R-04 043245 -5 1411 SI4A R6OY RRR 043300 -8 1410 R6OY SI4A 73 043315 -2 1410 SI4A R6OY 73 043330 -6 1410 N3RC SI4A R-10 (x2) 043600 -6 1412 KD4DRJ SI4A R-19 (x2) 125545 -21 1900 SI4A F4HSB R+18 (x2) 130030 -8 1245 SI4A EC3A RR73
60m
UTC dB Freq Message 202230 -8 1148 SI4A 9A1CCB JN85 (x2) 202315 -19 1149 9A1CCB SI4A RR73 202330 -5 1149 SI4A 9A1CCB 73 202500 -11 432 BA4RF SI4A JO69 214200 -18 1492 HF0YL SI4A JO69 220200 -15 1504 LU3CQ SI4A JO69 (x6) 220530 -15 1505 IK5CHL SI4A -09 220545 -19 1734 SI4A IK5CHL R-06 (x2)
10m
UTC dB Freq Message 140115 -12 1375 F4IIX SI4A -08 (x2) 140215 -6 1378 S56A SI4A -15 (x2) 140415 -16 1377 UR5WAI SI4A R-13 (x2) 140615 -8 1376 HA3TNJ SI4A RR73 140645 -10 1375 UT3KW SI4A -02 (x2) 075600 +3 1976 P29XZ SI4A JO69 (x6)
160m
UTC dB Freq Message 200015 +0 2519 TL8BNW SI4A JO69 (x4)