GM4ZTO — FT8 station from Scotland

Scotland Grid: JO21

Amateur radio station GM4ZTO operating from Scotland (grid square JO21). 2,266 FT8 spots received at SO8OO WebSDR, 1,210 CQ calls, active on 40m, 20m, 10m, over 39 days, best SNR +26 dB. Heard between 2026-04-21 and 2026-06-07.

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

Overview

2,266
Total spots
1,210
CQ calls
39
Days active
-5 dB
Avg SNR

Bands

20m 40m 10m
First seen: 2026-04-21
Last seen: 2026-06-07 06:32 UTC

Frequent QSO partners observed at SO8OO

Stations GM4ZTO worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandGM4ZTOPartnerPartner SNRMsgs
06-07 08:32 20m -13 / - PD1ADA - / - 2 Partial
06-07 08:29 20m -9 / - RA9ACA -4 / -14 2 Partial
06-07 08:01 20m - / - PD1CMP -18 / - 2 Partial
06-06 17:52 20m - / -25 PD2USA -1 / - 2 ✓ Confirmed
06-06 15:41 20m +25 / - RG5A - / - 2 Partial
06-06 13:33 20m +1 / - PD5B - / -22 6 ✓ Confirmed
06-06 13:28 20m -4 / - RD3BTW - / -17 3 ✓ Confirmed
06-06 11:01 20m -12 / - IW5ALZ - / - 3 Partial
06-06 10:56 20m -6 / - F4BYA - / - 4 Partial
06-06 10:19 20m -2 / - IQ9BF - / -18 2 ✓ Confirmed
06-05 09:38 20m -12 / - RV9WJP - / - 2 Partial
06-05 07:51 20m -10 / - UB4CJS - / -15 5 Partial
06-05 07:16 20m -1 / - DL1GLO - / - 3 Partial
06-05 07:09 20m - / -6 F5SZB +1 / - 2 Partial
06-05 06:54 20m - / +3 IQ0VT +2 / - 2 Partial
06-04 20:08 20m - / -8 SP9TEX -3 / - 5 Partial
06-04 19:03 20m - / -20 IU2GZZ -10 / - 2 Partial
06-04 18:55 20m - / -19 IU2LCQ -1 / - 10 Partial
06-04 18:49 20m - / -13 LY1DY -4 / - 3 Partial
06-04 17:20 20m - / -23 SP4XD -8 / - 2 Partial
06-04 13:41 20m +8 / - DJ3HW -9 / -2 11 ✓ Verified
06-04 11:04 20m -6 / - 9A7RR - / - 2 Partial
06-04 11:02 20m 0 / - TA3NK - / - 4 Partial
06-04 10:59 20m 0 / - DJ2CR - / - 2 Partial
06-04 10:58 20m -7 / - IW5ALZ - / - 2 Partial
06-04 10:52 20m -11 / - <...> - / - 3 Partial
06-04 10:33 20m -11 / - PD1ADA - / - 4 Partial
06-04 09:58 20m - / -18 PD9JPV -14 / - 2 Partial
06-04 08:40 20m +2 / - E79KO - / - 3 Partial
06-04 08:03 20m -10 / - IW2DNI - / - 2 Partial
06-04 07:58 20m +14 / - R4FDD - / - 2 ✓ Confirmed
06-04 07:37 20m -2 / - DB8BT - / - 2 ✓ Confirmed
06-04 07:36 20m -1 / - IW2DNI - / - 2 Partial
06-04 07:23 20m -5 / - IW2DNI - / - 2 Partial
06-03 18:26 20m -11 / - BA3KY - / -19 2 ✓ Confirmed
06-03 18:15 20m -20 / -7 EX8ABR/P -15 / -12 3 Partial
06-03 16:01 10m -12 / - RA4FEA - / -13 4 ✓ Confirmed
06-03 13:52 10m -5 / - F5SG - / -11 11 ✓ Confirmed
06-03 13:51 10m -11 / - DB5HA - / - 2 Partial
06-01 16:58 20m - / -14 VO1BE -9 / - 2 ✓ Confirmed
06-01 08:53 40m -8 / - DM4IG - / - 2 Partial
06-01 07:06 20m -6 / - F4JWI - / - 2 Partial
06-01 07:06 20m -3 / - SP8MO - / - 2 Partial
06-01 06:58 20m - / -15 R2DRY +1 / - 5 Partial
05-31 20:19 20m - / -13 BG0HP +4 / - 5 Partial
05-31 20:13 20m - / -11 K1WY +3 / - 2 Partial
05-31 20:05 20m -11 / -11 IQ8CUM +2 / -12 5 ✓ Complete
05-31 19:34 20m - / -15 BH1PYG 0 / - 4 Partial
05-31 19:30 20m -1 / -12 RX9WM +4 / - 3 Partial
05-31 19:25 20m -19 / - RA1QX - / - 3 Partial

Station Log

20m 
UTC    dB  Freq  Message
175615  +4  731  CQ GM4ZTO IO75 (x8)
080145 -18  563  PD1CMP GM4ZTO IO75 (x2)
082815  -1  562  CQ GM4ZTO IO75
082915  -9 1836  GM4ZTO RA9ACA -14
082930  -4  562  RA9ACA GM4ZTO IO75
083215 -10 2034  GM4ZTO PD1ADA JO21 (x2)
10m 
UTC    dB  Freq  Message
135300  +8 1657  GM4ZTO F5SG -11 (x10)
144230  -1  745  GM4ZTO DG3NCZ JO50
160100 -15  744  GM4ZTO RA4FEA LO33 (x4)
40m 
UTC    dB  Freq  Message
204600  -8  547  G1SID GM4ZTO -20 (x6)
204900 -12  547  CQ GM4ZTO IO75
205000  -9  547  G1SID GM4ZTO 73
070145  +2  550  GM4ZTO OE6GOG JN77
070615  +1  438  GM4ZTO IK4LZH JN54 (x4)
085330  -7 2486  GM4ZTO DM4IG JN49 (x2)

SNR History by Band