G4SWH — 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: IO91

Receiver-side FT8 activity involving G4SWH, decoded by SO8OO in southeastern Poland. 176 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 16 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-04.

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 176 FT8 messages attributed to G4SWH as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (72%), followed by 40 m (26%) and 10 m (2%). Several six-hour UTC windows tied for the largest share (55%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

176
Messages attributed
16
UTC dates decoded
32
Active 15-min windows
-13 dB
Estimated median S/N

Bands

40m · 46 20m · 126 10m · 4
First attributed message: 2026-06-10
Last attributed message: 2026-09-04 07:05 UTC

Observed FT8 message patterns

Attributed sample
176 messages
Active dates
16 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-19 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 50, moderate (-15 to -9 dB) 77, strong (≥ -8 dB) 49.

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 G4SWH 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 G4SWH

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
IO91 · 106 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,607 km (approx.)
Last such locator decoded
2026-09-04 06:58 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 UTCBandG4SWH S/NCounterpartCounterpart S/NMsgsCapture
10-22 07:28 60m - / -24 SQ7LQT -7 / - 8 Partial capture
10-22 07:25 60m - / -2 DK7UY -3 / - 3 ✓ Closing fragment
10-22 07:23 60m - / -12 PE1NPS -4 / - 4 ✓ Closing fragment
10-22 07:22 60m - / -12 PA7ZZ -4 / - 2 ✓ Closing fragment
10-22 07:20 60m - / -2 HB9ACA -16 / - 2 ✓ Closing fragment
10-22 07:19 60m - / -8 DF4WQ -8 / - 3 ✓ Closing fragment
10-22 07:10 60m - / -18 SP2EWQ -5 / - 3 ✓ Closing fragment
10-22 07:03 60m - / -16 DD6ZV +7 / - 3 ✓ Closing fragment
10-22 07:01 60m - / -1 DK7ZT -10 / - 2 ✓ Closing fragment
10-22 06:58 60m - / - OH1LA -19 / - 2 Partial capture
09-29 07:19 40m - / -7 HA1BF -9 / - 3 ✓ Closing fragment
09-23 12:43 40m - / -8 DF1WR -13 / - 3 ✓ Closing fragment
09-23 08:48 40m - / +10 DF5DY -9 / - 5 ✓ Closing fragment
09-23 08:31 40m - / -4 HA1BF -6 / - 2 ✓ Closing fragment
09-23 08:19 40m - / +7 G3XWH -12 / - 3 ✓ Closing fragment
09-23 08:19 40m - / - S53AK -1 / - 5 Partial capture
09-14 15:31 40m - / -1 LA8ENA -6 / - 2 ✓ Closing fragment
09-04 07:23 40m - / -12 HA1ZW -3 / - 7 Partial capture
09-04 07:21 40m - / 0 DK5UR -8 / - 2 ✓ Closing fragment
09-04 07:12 40m - / 0 DF0NN -16 / - 2 Partial capture
09-04 07:04 40m -20 / -1 ON8FAB -12 / - 3 ✓ Closing observed
09-04 07:02 40m -24 / -16 OE1AVO -4 / - 3 ✓ Closing observed
09-04 06:55 40m - / +8 DA1TE -11 / - 2 Partial capture
09-04 06:39 40m - / -12 DL6RS +1 / - 3 ✓ Closing fragment
09-03 14:37 40m - / -5 DL7FAI -14 / - 9 Partial capture
09-02 21:13 40m -12 / -20 RL3K -10 / - 4 ✓ Closing observed
09-02 21:11 40m -13 / - BG0HP - / - 3 Partial capture
09-02 21:10 40m -15 / - F1HSY - / -9 2 ✓ Closing fragment
09-02 21:08 40m -10 / +6 GM4HYG -18 / -2 4 ✓ Full exchange observed
09-02 21:04 40m -13 / +9 PA2KV +2 / - 9 ✓ Full exchange observed
09-02 21:01 40m - / -8 RX3ASQ -8 / - 2 ✓ Closing fragment
09-02 09:24 40m - / - DL6REX -20 / - 2 ✓ Closing fragment
09-02 09:13 40m - / -8 DF5DY -8 / - 4 Partial capture
09-01 12:38 40m - / -14 SP3DVO -12 / - 4 ✓ Closing fragment
09-01 08:44 40m - / - SP9YGD -1 / - 3 Partial capture
09-01 08:31 40m - / -10 PG4T -8 / - 2 ✓ Closing fragment
09-01 08:28 40m - / -8 DK4VF -14 / - 2 Partial capture
09-01 07:43 40m -16 / -20 IN3ADG -18 / -17 4 Partial capture
09-01 07:39 40m -21 / - OE1AVO -4 / -19 4 ✓ Closing observed
09-01 07:01 40m -17 / - CS7BHA - / -13 5 ✓ Closing fragment
09-01 06:58 40m - / -1 PA7Q -8 / - 5 ✓ Closing fragment
09-01 06:55 40m - / - DL6RS -11 / - 3 Partial capture
08-31 08:44 40m - / - DL6RS -9 / - 2 Partial capture
08-30 15:41 40m - / - SP5HQZ -6 / - 2 Partial capture
08-30 15:30 40m - / - DL1EDR -7 / - 3 Partial capture
08-24 08:43 20m - / - DL6UM -3 / - 7 Partial capture
08-24 08:43 20m -16 / - HB9CAL +8 / 0 4 ✓ Closing observed
08-18 07:48 10m -23 / - UR4UT - / -16 2 Partial capture
08-17 07:12 20m -11 / - I2NOS - / -21 4 Partial capture
08-17 07:07 20m -14 / +7 IK4LZH -9 / 0 4 ✓ 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
072345  -8  532  G4SWH PE1NPS JO22 (x4)
072515  -4 2568  G4SWH DK7UY JO44 (x3)
072815  -5 1145  G4SWH SQ7LQT -24 (x8)
40m 
UTC    dB Audio  Message
083200  -7 1353  G4SWH HA1BF RR73
083430  -8 2730  G4SWH F1PBZ -10
083930  -9 2900  G4SWH F1TKN -02
084830  -8  578  G4SWH DF5DY JO41 (x5)
123030 -10 1039  G4SWH SP9UH JO90
124300 -15 1103  G4SWH DF1WR JN39 (x3)
071930 -10 1653  G4SWH HA1BF -07 (x3)
20m 
UTC    dB Audio  Message
084300  -5  784  G4SWH DL6UM JO60
084315 -14 1244  HB9CAL G4SWH +00
084330  +0  783  G4SWH DL6UM JO60
084345 -18 1244  HB9CAL G4SWH RR73
084400  +7 1244  G4SWH HB9CAL 73
084400  -4  783  G4SWH DL6UM JO60
084415 -17 1244  CQ G4SWH IO91
084430  -1  783  G4SWH DL6UM JO60
084445 -14 1244  CQ G4SWH IO91
084500  -6  784  G4SWH DL6UM JO60
084515 -20 1244  CQ G4SWH IO91
084530  -8 2054  G4SWH RU4D -13
084530  -4  783  G4SWH DL6UM JO60
084545 -16 1244  CQ G4SWH IO91                         a1
084630  -3  783  G4SWH DL6UM JO60
10m 
UTC    dB Audio  Message
074815 -24 1813  UR4UT G4SWH R-16 (x2)
075145 -24 1812  CQ G4SWH IO91
075230 -14 2379  G4SWH R6DWD -19
075345 -17 1812  CQ G4SWH IO91

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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