7S4Z — FT8 station from Sweden

Sweden Grid: JM99

Amateur radio station 7S4Z operating from Sweden (grid square JM99). 257 FT8 spots received at SO8OO WebSDR, 21 CQ calls, active on 20m, over 2 days, best SNR +24 dB. Heard between 2026-06-06 and 2026-06-07.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee

Overview

257
Total spots
21
CQ calls
2
Days active
-2 dB
Avg SNR

Bands

20m
First seen: 2026-06-06
Last seen: 2026-06-07 15:28 UTC

Frequent QSO partners observed at SO8OO

Stations 7S4Z worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBand7S4ZPartnerPartner SNRMsgs
06-07 17:27 20m 0 / - IU7QBB - / - 4 Partial
06-07 17:25 20m +9 / - G4DBW +13 / -5 4 ✓ Verified
06-07 17:23 20m -3 / +8 OZ1SMB +8 / +6 5 ✓ Complete
06-07 17:23 20m +7 / - F4BYA - / - 4 Partial
06-07 17:22 20m +1 / -5 PD0MJC +13 / -13 2 Partial
06-07 17:19 20m -10 / -10 BG0ETY +7 / -19 4 ✓ Complete
06-07 17:19 20m -6 / - RZ4FWA - / - 2 Partial
06-07 17:17 20m +6 / -2 R6DVV +11 / +9 5 ✓ Complete
06-07 17:16 20m +5 / -1 RK3AQ +13 / -12 3 ✓ Complete
06-07 17:16 20m +3 / -8 RX6DY +8 / -20 5 ✓ Complete
06-07 17:13 20m - / -5 PD9FLX -3 / - 2 ✓ Confirmed
06-07 17:12 20m - / -23 OH3UCU 0 / - 2 Partial
06-07 17:06 20m -2 / - DL0BX -4 / -7 4 ✓ Verified
06-07 17:01 20m +3 / +5 DH5BO -8 / +5 4 ✓ Complete
06-07 17:01 20m +4 / - DL3RAJ - / - 4 ✓ Confirmed
06-07 16:57 20m +10 / - R4GD - / - 2 Partial
06-07 16:55 20m -9 / - EA8DIB - / - 2 ✓ Confirmed
06-07 09:45 20m -12 / - PD1PSR - / -16 2 Partial
06-07 09:26 20m - / -15 R2RDA -4 / - 2 Partial
06-07 09:25 20m -4 / - DK7FM - / -6 2 ✓ Confirmed
06-07 09:23 20m - / - SP5LST -8 / - 2 ✓ Confirmed
06-07 09:20 20m +6 / - UA1ABO +1 / -10 7 ✓ Complete
06-07 09:20 20m -3 / -1 RX3DTN -8 / -8 6 ✓ Complete
06-07 09:19 20m +12 / +3 LA7OY -5 / -1 2 Partial
06-07 09:17 20m +2 / - RY3F -6 / -10 3 ✓ Verified
06-07 08:39 20m 0 / - RV6F - / -16 5 ✓ Confirmed
06-07 08:36 20m - / -23 R8LCA -4 / - 2 Partial
06-07 08:35 20m -6 / -16 US1MM +2 / - 4 Partial
06-07 08:33 20m -7 / -6 EA1CMS -5 / -6 6 ✓ Complete
06-07 08:33 20m - / -25 RX3ASQ 0 / - 2 ✓ Confirmed
06-07 08:31 20m - / +1 DM3YBN 0 / - 2 ✓ Confirmed
06-07 08:29 20m - / -17 R4CKL 0 / - 2 ✓ Confirmed
06-07 07:48 20m -5 / - F4HIK -13 / +1 3 ✓ Verified
06-07 07:47 20m -14 / +3 PA4EME -6 / -18 7 ✓ Complete
06-07 07:45 20m +22 / - LY3BES -11 / -4 3 ✓ Complete
06-07 07:43 20m 0 / - DM5KM - / -8 3 ✓ Confirmed
06-07 07:42 20m +13 / - R3DHP -13 / -11 4 ✓ Verified
06-07 07:41 20m - / -10 DM2VC -6 / - 2 ✓ Confirmed
06-07 07:39 20m +4 / - DM5EI -2 / -13 3 Partial
06-07 07:36 20m - / -1 SP6FME -8 / - 2 ✓ Confirmed
06-07 07:30 20m +4 / - YO4FRF - / -19 2 ✓ Confirmed
06-07 07:27 20m -3 / - PD0IFI -14 / +5 4 ✓ Complete
06-06 21:20 20m +2 / - JH4CPC - / - 3 Partial
06-06 21:17 20m -11 / - IK1RQX -12 / -12 5 ✓ Verified
06-06 21:16 20m - / -7 OK1BLU -8 / - 2 ✓ Confirmed
06-06 20:30 20m +4 / - F5OYA/P - / -2 3 ✓ Confirmed
06-06 20:27 20m -8 / - DL2VER - / -14 3 ✓ Confirmed
06-06 20:25 20m 0 / - S55A - / -5 2 Partial
06-06 20:23 20m -6 / - US2YW - / -15 2 Partial
06-06 20:19 20m -12 / - DL9PN - / - 2 ✓ Confirmed

Station Log

20m 
UTC    dB  Freq  Message
172345  +8 3009  7S4Z F4BYA JN19
172400  +8 2742  OZ1SMB 7S4Z +08
172415  +9 3009  7S4Z F4BYA JN19
172415  -4 2941  7S4Z OZ1SMB R+06
172430  +7 2742  OZ1SMB 7S4Z RR73
172445  +5 3009  7S4Z F4BYA JN19
172445  -4 2941  7S4Z OZ1SMB 73
172545  +7 2438  7S4Z G4DBW JO01 (x2)
172630 +13 2742  G4DBW 7S4Z RR73
172645 +14 2438  7S4Z G4DBW 73
172715  +1 1564  7S4Z IU7QBB JM99 (x4)

SNR History by Band