GM4ZTO — FT8 station from Scotland

Scotland Grid: IO75

Amateur radio station GM4ZTO operating from Scotland (grid square IO75). 943 FT8 spots received at SO8OO WebSDR, 478 CQ calls, active on 40m, 20m, over 19 days, best SNR +22 dB. Heard between 2026-04-21 and 2026-05-12.

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

Overview

943
Total spots
478
CQ calls
19
Days active
-5 dB
Avg SNR

Bands

20m 40m
First seen: 2026-04-21
Last seen: 2026-05-12 19:37 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
05-12 21:36 20m - / -16 BG4UCZ 0 / - 6 Partial
05-12 21:34 20m - / - EA5CAO -4 / - 2 Partial
05-12 21:23 20m - / -21 EA5CAO -8 / - 4 Partial
05-12 21:21 20m -4 / - JA0DIN - / - 2 Partial
05-12 21:16 20m - / -19 DS5MNO -8 / - 6 Partial
05-12 21:16 20m -6 / - JA0DIN - / - 3 Partial
05-12 21:12 20m - / -12 R6ACY -4 / - 2 Partial
05-12 21:08 20m - / -18 KV1F -4 / - 2 Partial
05-12 21:06 20m - / -15 KC1OXG -8 / - 2 Partial
05-12 13:47 20m -19 / - R4FDW - / - 9 Partial
05-12 13:05 20m -6 / - F4BYA - / - 6 Partial
05-12 07:42 20m - / -19 OE5FIL -2 / - 2 Partial
05-12 07:30 20m +4 / -21 G5LP -5 / -17 25 ✓ Complete
05-12 07:27 20m - / -9 UB3DLM -4 / - 2 Partial
05-11 21:44 20m - / -13 KB3DQI +2 / - 4 Partial
05-11 21:41 20m - / -23 JA9CWJ +3 / - 6 Partial
05-11 21:36 20m - / -18 RI0SP +3 / - 3 ✓ Confirmed
05-11 21:33 20m - / -7 UR5WCS +6 / - 3 Partial
05-11 19:22 20m - / -15 SP4WJ -6 / - 4 Partial
05-11 05:03 40m +3 / - IK4LZH - / -13 7 ✓ Confirmed
05-10 20:44 20m - / -23 EA4HHX +3 / - 2 Partial
05-10 20:36 20m - / -22 VA3LCE -3 / - 3 ✓ Confirmed
05-10 20:31 20m - / -17 PH7GD -1 / - 4 Partial
05-10 20:26 20m - / +2 IZ5YBN -8 / - 2 ✓ Confirmed
05-10 20:04 20m - / -21 LU9GDN 0 / - 7 Partial
05-10 16:19 20m - / - IK4LZH -10 / - 2 Partial
05-10 16:18 20m - / -20 LB1VJ -7 / - 2 ✓ Confirmed
05-10 16:16 20m -14 / - EA3GZD - / - 2 Partial
05-10 16:12 20m +6 / - R6DVV - / - 4 Partial
05-10 13:32 20m -15 / - PD0KHN - / -15 2 ✓ Confirmed
05-10 13:28 20m -10 / - IU1JFI - / +6 3 ✓ Confirmed
05-10 13:18 20m -8 / - PE5I - / -13 3 ✓ Confirmed
05-10 13:17 20m -8 / - DL7KI - / - 2 Partial
05-10 11:49 20m -14 / - DL4DP - / -8 2 ✓ Confirmed
05-10 11:44 20m -16 / - DJ7LA - / - 2 Partial
05-10 08:17 20m +5 / -10 DF2FE -8 / - 5 Partial
05-10 08:01 20m - / -14 SP5JP -11 / - 3 Partial
05-09 21:57 20m -9 / -21 JH6ETS +8 / -17 4 ✓ Complete
05-09 21:54 20m - / -5 US5WDP +7 / - 3 ✓ Confirmed
05-09 21:52 20m - / -15 KC1WYG +8 / - 3 ✓ Confirmed
05-09 21:48 20m - / -25 LU4DTD +10 / - 3 ✓ Confirmed
05-09 21:46 20m - / -24 AD9AR +8 / - 2 ✓ Confirmed
05-09 21:44 20m -9 / - JA9NFO - / - 7 Partial
05-09 21:41 20m -14 / - LU3HBA - / - 2 Partial
05-09 17:18 20m - / - OH6DHM -7 / - 3 Partial
05-09 13:28 20m -1 / - TA3NK - / - 6 Partial
05-09 13:17 20m - / -6 N1AQ -6 / - 2 ✓ Confirmed
05-09 10:56 20m -5 / - R2BNF - / - 4 Partial
05-09 10:42 20m -6 / - F4MGP - / - 5 Partial
05-09 09:11 20m +13 / +6 <...> -9 / -11 3 Partial

Station Log

20m 
UTC    dB  Freq  Message
212300  -4  682  CQ GM4ZTO IO75
212330  -6  682  EA5CAO GM4ZTO -21 (x6)
213630  -5  680  BG4UCZ GM4ZTO IO75
213700  -6  681  CQ GM4ZTO IO75
213730  -6  681  BG4UCZ GM4ZTO -16 (x5)
214330  +2  682  9A3KG GM4ZTO RRR
40m 
UTC    dB  Freq  Message
081430  -7  878  GM4ZTO DB7MA JO54 (x6)
045900  -9  645  F1IQH GM4ZTO -07
050315  +1  438  GM4ZTO IK4LZH JN54 (x5)
050630 -10  645  CQ GM4ZTO IO75
050645  +5  438  GM4ZTO IK4LZH R-13 (x2)

SNR History by Band