G4ZCS — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO90

Receiver-side FT8 activity involving G4ZCS, decoded by SO8OO in southeastern Poland. 457 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-10.

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 457 FT8 messages attributed to G4ZCS as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (60%), followed by 20 m (40%) and 40 m (0%). Most decodes (95%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

457
Messages attributed
19
UTC dates decoded
58
Active 15-min windows
-7 dB
Estimated median S/N

Bands

60m · 272 40m · 1 20m · 184
First attributed message: 2026-06-11
Last attributed message: 2026-10-10 19:03 UTC

Observed FT8 message patterns

Attributed sample
457 messages
Active dates
19 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-16 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 47, moderate (-15 to -9 dB) 140, strong (≥ -8 dB) 270.

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 G4ZCS 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 G4ZCS

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
IO90 · 268 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,616 km (approx.)
Last such locator decoded
2026-10-10 19:03 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 UTCBandG4ZCS S/NCounterpartCounterpart S/NMsgsCapture
10-10 19:00 60m -1 / -2 IV3DSG 0 / - 4 ✓ Closing observed
10-10 18:58 60m -6 / -5 EA6ZS -4 / -8 5 ✓ Full exchange observed
10-10 18:49 60m -8 / - OZ9FF - / -11 3 ✓ Closing fragment
10-10 18:46 60m -4 / - SP7IIX - / -9 2 ✓ Closing fragment
10-10 18:43 60m -3 / -4 HG9FS -6 / -8 4 ✓ Full exchange observed
10-10 18:39 60m +2 / -16 IZ5ILH -4 / -3 7 ✓ Full exchange observed
10-10 18:38 60m +2 / +7 I3YPD +1 / -4 5 ✓ Full exchange observed
10-10 18:37 60m +2 / - DC3LD -7 / -9 3 ✓ Closing observed
10-10 18:35 60m +2 / -13 OZ3AEV -9 / -9 5 ✓ Full exchange observed
10-10 17:22 60m 0 / +7 S58X +5 / - 5 ✓ Closing observed
10-10 17:14 60m -7 / -16 IZ5ILH 0 / -8 10 Partial capture
10-10 17:12 60m -4 / - OH8SR - / - 2 Partial capture
10-10 17:08 60m -5 / - DK2MAX - / - 3 Partial capture
10-10 17:00 60m -5 / - G0IOW - / -2 2 Partial capture
10-10 16:59 60m -4 / -15 DL2JFL -21 / -16 3 ✓ Full exchange observed
10-10 16:57 60m -8 / - IW1QBR - / - 2 ✓ Closing fragment
10-10 16:53 60m -6 / +4 M1FJG -4 / +4 4 ✓ Full exchange observed
10-10 16:50 60m -4 / - G0IOW - / - 2 Partial capture
10-10 16:43 60m -11 / -7 4O/DL1FDH 0 / 0 4 Partial capture
10-10 16:42 60m -11 / -14 SV2HXV +1 / -6 5 ✓ Full exchange observed
10-10 16:40 60m -10 / - PA3ADE -14 / -15 3 ✓ Closing observed
10-10 16:38 60m -8 / 0 ES2IPA -10 / - 4 ✓ Closing observed
10-10 16:37 60m -9 / - EA4NW - / -11 2 ✓ Closing fragment
10-10 16:35 60m -10 / - G0KMC - / -3 3 ✓ Closing fragment
10-10 16:31 60m -12 / - OT4N -8 / +6 5 ✓ Full exchange observed
09-28 19:32 60m +1 / +3 DL4NFB -6 / -3 4 Partial capture
09-28 19:31 60m +1 / - F5OZC +3 / +4 4 ✓ Full exchange observed
09-28 19:29 60m -3 / +8 PE1BTV -10 / +1 5 ✓ Full exchange observed
09-28 19:28 60m 0 / - DG7WA - / - 3 Partial capture
09-28 19:26 60m -2 / - DJ6YX - / - 2 Partial capture
09-27 17:28 60m -5 / - UB3KGW - / - 4 Partial capture
09-27 17:22 60m -4 / - F4HSB -17 / -3 5 ✓ Full exchange observed
09-27 17:20 60m -5 / - OH3NAQ -2 / -7 4 ✓ Closing observed
09-27 17:14 60m -7 / -7 OM7FS -2 / - 4 ✓ Closing observed
09-27 17:13 60m - / - G4ZFJ 0 / - 2 ✓ Closing fragment
09-27 16:56 60m -10 / - DL1MST -21 / -5 4 ✓ Closing observed
09-27 16:54 60m -8 / -4 S57MK -9 / -11 6 ✓ Full exchange observed
09-27 16:52 60m -10 / -1 LY2J +8 / -4 5 ✓ Full exchange observed
09-27 16:40 60m -9 / -5 SP2EOE -10 / -9 6 ✓ Full exchange observed
09-27 16:34 60m -14 / -3 PA3AAA -11 / +6 5 ✓ Full exchange observed
09-27 16:33 60m -12 / -16 HF5A +3 / -6 2 Partial capture
09-24 20:57 60m -2 / - VE1YX - / -9 4 ✓ Closing fragment
09-24 20:55 60m -4 / -6 ER1CW -18 / -10 5 ✓ Full exchange observed
09-24 19:37 60m -7 / +10 LA8ZIA -8 / -2 10 ✓ Full exchange observed
09-24 19:35 60m -3 / - DL3RSK - / - 4 Partial capture
09-24 19:33 60m -4 / +1 OM5JG -10 / -10 4 ✓ Full exchange observed
09-24 19:29 60m -5 / -5 EW6X -8 / -2 5 ✓ Full exchange observed
09-24 19:27 60m -7 / - LA8ZIA - / - 2 Partial capture
09-24 19:25 60m -6 / 0 SP9W +6 / -3 4 ✓ Full exchange observed
09-24 19:23 60m -4 / +7 DG5LP -8 / 0 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
185845  -8  962  EA6ZS G4ZCS IO90
185900  -6 2637  G4ZCS EA6ZS -05
185915  -5  962  EA6ZS G4ZCS R-08
185930  -3 2636  G4ZCS EA6ZS RR73
185945  -5  963  EA6ZS G4ZCS 73
190015  -7  959  CQ G4ZCS IO90
190030  +0 1981  G4ZCS IV3DSG JN66 (x2)
190115  -1  963  IV3DSG G4ZCS RR73
190130  +1 1980  G4ZCS IV3DSG 73
190145  -6  963  CQ G4ZCS IO90                         a1 (x5)
20m 
UTC    dB Audio  Message
192930 -13 1354  JI4POR G4ZCS IO90 (x3)
193100 -18 1354  CQ G4ZCS IO90 (x3)
193215 -20 1497  G4ZCS DL3RAJ JN68 (x3)
193845 -11 1205  G4ZCS DG2EBG JO31 (x2)
194445 -15 1181  G4ZCS ON1DGN RR73
194645  -4  731  G4ZCS R2PM KO84 (x3)
40m 
UTC    dB Audio  Message
180715 -14 1333  G4ZCS F5RRS JN36 (x2)
181115 -14 1140  G4ZCS DL7ARV R+17
181145 -16 1837  G4ZCS DJ7WG JO54
181230 -20 1140  DJ7WG G4ZCS RR73
181245 -20 1837  G4ZCS DJ7WG 73

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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