S21SDR — FT8 station from Bangladesh
Amateur radio station S21SDR operating from Bangladesh (grid square JM67). 70 FT8 spots received at SO8OO WebSDR, active on 20m, 10m, over 12 days, best SNR +15 dB. Heard between 2026-04-21 and 2026-05-14.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
70
Total spots
0
CQ calls
12
Days active
-2 dB
Avg SNR
Bands
20m
10m
First seen: 2026-04-21
Last seen: 2026-05-14 14:29 UTC
Last seen: 2026-05-14 14:29 UTC
Frequent QSO partners observed at SO8OO
Stations S21SDR worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | S21SDR | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 05-14 16:29 | 20m | +6 / - | IT9BCC | - / -16 | 2 | Partial |
| 05-08 20:11 | 20m | -10 / - | F4CPJ | - / -24 | 2 | ✓ Confirmed |
| 05-08 19:49 | 20m | -4 / - | F4CWZ | - / - | 2 | Partial |
| 05-08 19:46 | 20m | -4 / - | IU0RKJ | - / -23 | 4 | ✓ Confirmed |
| 05-07 20:24 | 20m | +12 / - | 4X5LL | - / - | 2 | Partial |
| 05-07 20:13 | 20m | +1 / - | JE1FQV | - / -13 | 3 | ✓ Confirmed |
| 05-07 19:48 | 20m | -4 / - | OH5BRB | - / -20 | 2 | Partial |
| 05-06 17:12 | 20m | -1 / - | 2E0MTK | - / -16 | 3 | Partial |
| 05-06 17:11 | 20m | 0 / - | R4PF | - / - | 3 | Partial |
| 04-30 17:22 | 20m | -11 / - | UB6HRZ | - / - | 3 | Partial |
| 04-28 17:24 | 20m | -1 / - | UA3ZSI | - / - | 3 | Partial |
| 04-28 15:34 | 20m | +6 / - | UA3PRS | - / - | 2 | Partial |
| 04-27 18:30 | 20m | -10 / - | LA1PHA | -24 / -17 | 3 | ✓ Verified |
| 04-26 14:26 | 20m | +1 / - | F1PSX | - / - | 11 | Partial |
| 04-26 08:31 | 10m | -18 / - | DK6SP | - / - | 2 | Partial |
| 04-25 18:55 | 20m | +13 / - | IS0DDL | - / -20 | 5 | Partial |
| 04-25 18:45 | 20m | +7 / - | R6JY | - / -14 | 3 | ✓ Confirmed |
| 04-25 15:00 | 20m | -4 / - | IK8OXQ | - / - | 4 | Partial |
| 04-21 14:26 | 10m | -7 / - | ZS3W | - / - | 2 | Partial |
| 04-21 14:22 | 10m | -6 / - | ZS3W | - / -11 | 3 | Partial |
Station Log
20m
UTC dB Freq Message 202615 +12 460 S21SDR 4X5LL KM71 194445 -5 2476 S21SDR F5NBQ RR73 194615 -6 971 S21SDR IU0RKJ JN61 (x4) 194915 -7 1353 S21SDR F4CWZ JN38 (x2) 195745 -15 962 S21SDR PI4DX JO21 200745 -12 277 S21SDR UA0FO QN16 201145 -10 2287 S21SDR F4CPJ R-24 (x2) 143400 -9 1723 S21SDR RA6ALF LN05 162900 +6 2174 S21SDR IT9BCC JM67 (x2)
10m
UTC dB Freq Message 142215 -6 965 S21SDR ZS3W KG01 (x5) 083145 -18 1847 S21SDR DK6SP JN68 (x2)