GU4YBW — 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: Guernsey Most frequent locator attributed to this token: IN89

Receiver-side FT8 activity involving GU4YBW, decoded by SO8OO in southeastern Poland. 41 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-07-25 and 2026-11-01.

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 41 FT8 messages attributed to GU4YBW as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (59%), followed by 40 m (24%) and 20 m (12%). Several six-hour UTC windows tied for the largest share (85%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (63%); the estimated median was -13 dB.

Overview

41
Messages attributed
10
UTC dates decoded
16
Active 15-min windows
-13 dB
Estimated median S/N

Bands

80m · 2 60m · 24 40m · 10 20m · 5
First attributed message: 2026-07-25
Last attributed message: 2026-11-01 18:27 UTC

Observed FT8 message patterns

Attributed sample
41 messages
Active dates
10 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-21 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 26, strong (≥ -8 dB) 5.

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 GU4YBW 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 GU4YBW

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
IN89 · 11 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,775 km (approx.)
Last such locator decoded
2026-10-17 07:18 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 UTCBandGU4YBW S/NCounterpartCounterpart S/NMsgsCapture
11-05 14:11 40m - / - G0AJH -17 / - 2 ✓ Closing fragment
11-05 14:04 40m - / -19 SQ6COX -13 / - 2 ✓ Closing fragment
11-04 08:03 40m - / -16 PD7BDN -7 / - 3 ✓ Closing fragment
11-04 08:02 40m - / -10 DK3HV -17 / - 3 ✓ Closing fragment
11-04 08:00 40m - / -17 HB9ELE +1 / - 3 ✓ Closing fragment
11-04 07:57 40m - / -16 OE6OCG -5 / - 3 ✓ Closing fragment
11-04 07:55 40m - / -15 DL4RBR -6 / - 3 ✓ Closing fragment
11-04 07:53 40m - / - DK1HSI -8 / - 2 Partial capture
11-01 18:31 60m - / -16 SP2EWQ -8 / - 4 ✓ Closing fragment
11-01 18:29 60m - / -4 DL6EL -2 / - 3 ✓ Closing fragment
11-01 18:27 60m - / -7 DL6EI 0 / - 5 ✓ Closing fragment
11-01 18:25 60m -13 / -14 LZ1SAD -4 / -5 7 ✓ Full exchange observed
11-01 18:23 60m - / - OH3MB -5 / - 3 Partial capture
11-01 18:20 60m - / -14 OH6FSG -4 / - 6 ✓ Closing fragment
11-01 18:19 60m - / - OH3MB 0 / - 3 Partial capture
11-01 18:19 60m - / -23 IZ6CLN -8 / - 5 ✓ Closing fragment
11-01 18:18 60m - / -12 DL1CF 0 / - 4 ✓ Closing fragment
11-01 18:16 60m - / -20 OH8LXT -18 / - 2 Partial capture
11-01 18:15 60m - / - OH6NEQ -7 / - 17 Partial capture
11-01 18:14 60m - / -15 OH6QU +2 / - 4 ✓ Closing fragment
11-01 18:13 60m - / -14 EA3KZ -11 / - 4 ✓ Closing fragment
11-01 18:12 60m - / - HA7EG -14 / - 2 Partial capture
11-01 18:11 60m - / +1 PA4GDR -9 / - 3 ✓ Closing fragment
10-31 16:11 40m - / - DB7MA -14 / - 2 Partial capture
10-31 16:11 40m - / -5 PD2GCM -2 / - 9 ✓ Closing fragment
10-31 16:11 40m - / -14 RX3DQ +4 / - 2 Partial capture
10-31 16:07 40m - / -7 LA2GCA -18 / - 2 ✓ Closing fragment
10-31 16:06 40m - / -12 ON4ASV +12 / - 3 ✓ Closing fragment
10-31 16:03 40m - / - RD5D -6 / - 2 Partial capture
10-31 16:02 40m - / -11 DC6UA -7 / - 3 ✓ Closing fragment
10-31 16:00 40m - / -19 F4NGB -15 / - 5 ✓ Closing fragment
10-31 15:58 40m - / -16 R2EC +8 / - 5 ✓ Closing fragment
10-31 15:57 40m - / -17 SP2L +4 / - 2 ✓ Closing fragment
10-25 13:29 40m - / -25 IQ4JO -6 / - 3 ✓ Closing fragment
10-24 10:06 40m - / -16 PD1RE -6 / - 2 Partial capture
10-22 13:05 40m - / 0 F4GUK -4 / - 3 ✓ Closing fragment
10-22 13:00 40m - / - PD1ACS -24 / - 2 ✓ Closing fragment
10-18 10:30 40m - / -18 PD0OKP -7 / - 2 ✓ Closing fragment
10-18 10:25 40m - / -16 DL8UVG -2 / - 8 ✓ Closing fragment
10-14 07:01 60m - / -11 SP9AMH -16 / - 11 Partial capture
10-14 06:57 60m - / -3 PA4PA 0 / - 3 ✓ Closing fragment
10-14 06:56 60m - / +1 F4VWK +3 / - 3 ✓ Closing fragment
10-13 07:03 60m - / -11 IK1WGX -8 / - 3 ✓ Closing fragment
10-13 07:00 60m - / 0 F8BON -16 / - 5 ✓ Closing fragment
10-13 06:59 60m - / -14 HB9LEU +2 / - 4 ✓ Closing fragment
10-13 06:59 60m - / -13 DF0AWG +1 / - 3 ✓ Closing fragment
10-10 17:17 40m - / -18 HA1RJ -8 / - 4 Partial capture
10-10 17:14 40m - / - R2AL +5 / - 3 Partial capture
10-10 17:12 40m - / -20 DK1RTL -4 / - 5 Partial capture
10-10 17:12 40m - / - UA3GIE -4 / - 7 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
075815  -1 2340  GU4YBW OE6OCG R-16 (x2)
080045  -5  594  GU4YBW HB9ELE JN47 (x3)
080245 -17 1891  GU4YBW DK3HV JO31 (x2)
080345  -6 2341  GU4YBW PD7BDN JO22
080345 -18 1892  GU4YBW DK3HV 73
080415  -6 2341  GU4YBW PD7BDN R-16 (x2)
140415 -12 1954  GU4YBW SQ6COX -19 (x2)
141115 -16 1434  GU4YBW G0AJH JO01 (x2)
60m 
UTC    dB Audio  Message
182715  -2 1468  GU4YBW LZ1SAD R-14
182715  +1  861  GU4YBW DL6EI JN57
182745  +1 1468  GU4YBW LZ1SAD R-14
182745  +1  861  GU4YBW DL6EI JN57
182815  -4 1468  GU4YBW LZ1SAD 73
182815  -1  861  GU4YBW DL6EI JN57 (x3)
182945  +2  861  GU4YBW DL6EL JN57 (x3)
183115  -7  579  GU4YBW SP2EWQ JO93 (x4)
80m 
UTC    dB Audio  Message
061315 -12 2076  GU4YBW DO1FZL JO50 (x2)
183515 +15  482  GU4YBW SP1MGM JO73 (x3)
183615 -21  754  GU4YBW DO1ANB JO31
183715 -11 1300  GU4YBW F4FSY -13
183715 -16  753  GU4YBW DO1ANB JO31 (x3)
184215 -10  482  GU4YBW M0XXJ 73
184430 -16  483  CQ GU4YBW IN89 (x2)
184515  -3  500  GU4YBW DL6OCH JO42 (x2)

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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