GM4VYQ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Scotland Most frequent locator attributed to this token: IO76

Receiver-side FT8 activity involving GM4VYQ, decoded by SO8OO in southeastern Poland. 58 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-03 and 2026-08-20.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 58 FT8 messages attributed to GM4VYQ as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (59%), followed by 20 m (41%). Several six-hour UTC windows tied for the largest share (91%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

58
Messages attributed
5
UTC dates decoded
15
Active 15-min windows
-16 dB
Estimated median S/N

Bands

40m · 34 20m · 24
First attributed message: 2026-07-03
Last attributed message: 2026-08-20 10:26 UTC

Observed FT8 message patterns

Attributed sample
58 messages
Active dates
5 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-18 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 16.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with GM4VYQ in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to GM4VYQ

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
IO76 · 36 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,912 km (approx.)
Last such locator decoded
2026-08-20 10:26 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandGM4VYQ S/NCounterpartCounterpart S/NMsgsCapture
08-20 10:41 40m - / - DL7APJ -12 / - 2 Partial capture
08-20 10:40 40m - / - DA1ST -5 / - 8 Partial capture
08-20 10:22 20m - / - DG9AW -1 / - 8 Partial capture
08-20 10:21 20m - / - CT3MD -2 / - 3 Partial capture
08-20 10:18 20m - / - CT3MD -2 / - 2 Partial capture
08-20 10:16 20m - / - F4LHZ +4 / - 2 Partial capture
08-20 10:13 20m - / -11 OH3OJ -8 / - 4 ✓ Closing fragment
08-19 19:11 20m -7 / - LY2TS - / - 2 Partial capture
08-19 18:59 20m -3 / -7 HS0ZOY -12 / +6 3 ✓ Full exchange observed
08-19 18:06 20m -5 / - SP7PA - / - 5 Partial capture
08-19 17:52 20m - / - CT1BFP -12 / - 13 Partial capture
08-17 18:23 20m -18 / -11 CN8NS -11 / - 3 ✓ Closing observed
07-04 20:51 40m -15 / - SC9WWA - / - 3 Partial capture
07-04 20:48 40m -16 / - II1WWA - / +10 3 ✓ Closing fragment
07-04 20:45 40m -17 / - <...> - / -18 2 Partial capture
07-04 20:43 40m -17 / +9 DA0WWA -6 / +10 10 ✓ Full exchange observed
07-04 20:39 40m -16 / - TM2WWA -8 / - 3 ✓ Closing observed
07-04 20:38 40m -17 / - II5WWA - / -2 2 Partial capture
07-04 20:30 40m -17 / -15 II3WWA -5 / - 3 Partial capture
07-04 19:48 20m - / +2 CR2WWA -18 / - 2 ✓ Closing fragment
07-04 19:47 20m - / - F4HSB -20 / - 3 Partial capture
07-03 20:00 40m -16 / - SO5WD - / -17 2 ✓ Closing fragment
07-03 19:59 40m -14 / - G7RUP - / -3 2 ✓ Closing fragment
07-03 19:54 40m -17 / - 8A1WWA - / -11 4 ✓ Closing fragment
07-03 19:23 40m - / - DA0WWA -12 / - 2 ✓ Closing fragment
07-03 19:16 40m -21 / -11 II0WWA -8 / - 3 Partial capture
07-03 19:13 40m -22 / -13 SN4WWA -13 / +2 3 ✓ Full exchange observed
07-03 19:11 40m - / -10 II3WWA -5 / - 2 ✓ Closing fragment
07-03 19:04 40m - / -1 II6WWA -16 / - 2 ✓ Closing fragment
07-03 18:35 20m -13 / -10 EH3WWA -13 / - 4 ✓ Closing observed
07-03 18:27 20m -19 / - OE8KAO - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

20m 
UTC    dB Audio  Message
102230  -1 2381  GM4VYQ DG9AW JN58
102230  -2  852  GM4VYQ CT3MD IM13
102300 -11  475  GM4VYQ OH3MB KP20
102300  -4 2381  GM4VYQ DG9AW JN58 (x3)
102400  -7  475  CQ GM4VYQ IO76
102430  -1 2381  GM4VYQ DG9AW JN58
102430  -4  475  CQ GM4VYQ IO76
102500  +4 2380  GM4VYQ DG9AW JN58
102500  -6  475  CQ GM4VYQ IO76
102530  +1 2381  GM4VYQ DG9AW JN58
102530  +1  474  CQ GM4VYQ IO76 (x2)
124545  +6 2185  GM4VYQ F4IVG -16
40m 
UTC    dB Audio  Message
204915 -15 1175  II1WWA GM4VYQ R+10 (x2)
205115 -16 1176  SC9WWA GM4VYQ IO76 (x3)
104015  -8  440  GM4VYQ DA1ST JO41
104115 -13 1389  GM4VYQ DL7APJ JO62
104115  -6  440  GM4VYQ DA1ST JO41
104145 -11 1389  GM4VYQ DL7APJ JO62
104145  -4  440  GM4VYQ DA1ST JO41 (x6)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

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