EG7SWC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM77

Receiver-side FT8 activity involving EG7SWC, decoded by SO8OO in southeastern Poland. 94 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-20 and 2026-07-31.

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 94 FT8 messages attributed to EG7SWC as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (73%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

94
Messages attributed
3
UTC dates decoded
11
Active 15-min windows
-12 dB
Estimated median S/N

Bands

20m · 94
First attributed message: 2026-07-20
Last attributed message: 2026-07-31 07:49 UTC

Observed FT8 message patterns

Attributed sample
94 messages
Active dates
3 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-18 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 27, moderate (-15 to -9 dB) 49, strong (≥ -8 dB) 18.

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 EG7SWC 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 EG7SWC

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
IM77 · 29 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,538 km (approx.)
Last such locator decoded
2026-07-31 07:48 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 UTCBandEG7SWC S/NCounterpartCounterpart S/NMsgsCapture
07-31 18:21 10m - / -9 DL1IP -11 / - 2 Partial capture
07-31 07:49 20m -6 / - UX7QV - / +6 2 ✓ Closing fragment
07-31 07:41 20m -4 / - ON3JDK +1 / - 2 ✓ Closing observed
07-31 07:37 20m -6 / - K5MGY - / -2 2 ✓ Closing fragment
07-31 07:35 20m - / +4 UA3RBM -14 / - 2 Partial capture
07-31 07:31 20m -7 / -11 DJ7LWD 0 / -1 3 Partial capture
07-31 07:27 20m - / -7 F1PBZ 0 / - 2 ✓ Closing fragment
07-31 07:26 20m -4 / - DL9KM -8 / -15 8 Partial capture
07-31 07:12 20m - / -15 DF6NL -8 / - 2 Partial capture
07-31 06:55 20m - / -4 RN6MA +4 / - 2 ✓ Closing fragment
07-31 05:27 40m - / - DL6UM -7 / - 2 Partial capture
07-31 05:20 40m - / - DL6UM -7 / - 5 Partial capture
07-31 05:17 40m - / -12 9A4ZM -15 / - 3 ✓ Closing fragment
07-31 05:16 40m - / - DL6UM -15 / - 4 Partial capture
07-31 05:12 40m - / -13 F5RRS -18 / - 3 Partial capture
07-31 05:07 40m - / - 9A4ZM -8 / - 2 Partial capture
07-31 05:05 40m - / -13 YO4NT -12 / - 2 ✓ Closing fragment
07-28 06:14 20m - / -10 RX3ASQ -16 / - 2 Partial capture
07-27 02:19 40m - / -12 R5AV -4 / - 2 Partial capture
07-26 10:06 20m - / -4 G0RVY +1 / - 3 ✓ Closing fragment
07-26 09:57 20m - / -5 ON6CQ -14 / - 5 ✓ Closing fragment
07-26 09:51 20m - / -13 F2VX -14 / - 4 ✓ Closing fragment
07-26 09:47 20m - / - DL1UDO -14 / - 2 Partial capture
07-26 09:28 20m - / -6 F1ODM -12 / - 2 ✓ Closing fragment
07-25 12:23 10m - / -16 PD1HPB -13 / - 4 ✓ Closing fragment
07-25 12:19 10m - / -9 PD0HLA 0 / - 2 ✓ Closing fragment
07-22 00:16 40m - / -10 F1IQH -10 / - 4 Partial capture
07-22 00:16 40m - / -1 PD0IFI -3 / - 4 ✓ Closing fragment
07-22 00:10 40m - / -15 UA4FKT +2 / - 4 ✓ Closing fragment
07-22 00:08 40m - / -10 EA3EDU -18 / - 3 ✓ Closing fragment
07-20 17:08 20m -18 / - M8KKH +1 / -6 3 Partial capture
07-20 17:08 20m -20 / - DJ7XY - / -20 2 ✓ Closing fragment
07-20 17:06 20m -16 / - PA7D - / -4 2 ✓ Closing fragment
07-20 17:05 20m -18 / -18 TA4INO -13 / -15 5 ✓ Full exchange observed
07-20 17:03 20m -9 / 0 PA7BS -20 / -14 2 Partial capture
07-20 17:01 20m -12 / - 4O4DB -19 / -17 5 ✓ Closing observed
07-20 16:57 20m -13 / - PE1KDY -23 / -13 3 ✓ Closing observed
07-20 16:54 20m -14 / - F1TWS - / -4 2 ✓ Closing fragment
07-20 16:52 20m -10 / - DH0GBC - / -6 2 ✓ Closing fragment
07-20 16:52 20m - / - DL1UDO -15 / - 5 Partial capture
07-20 16:50 20m -11 / - PD9JPV - / -16 2 Partial capture
07-20 16:48 20m -10 / +3 EA5RO -12 / -2 3 Partial capture
07-20 16:46 20m -15 / - DL7UJM - / -15 2 ✓ Closing fragment
07-20 16:45 20m -15 / - LA2GCA - / -14 2 ✓ Closing fragment
07-20 16:42 20m -14 / -12 EA5IBI -12 / -13 5 ✓ Full exchange observed
07-20 16:38 20m -16 / -6 DK0RST -14 / -4 4 ✓ Full exchange observed
07-20 16:36 20m -12 / - IK1YPC - / -6 3 ✓ Closing fragment
07-20 16:34 20m -12 / - DL7FE - / -5 2 ✓ Closing fragment
07-20 16:32 20m -16 / +1 GE8DQP -12 / -13 7 ✓ Full exchange observed
07-20 16:32 20m -12 / -10 UA4FEN 0 / -2 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
121900  +0 2660  EG7SWC PD0HLA -09 (x2)
122300 -17 1238  EG7SWC PD1HPB R-16 (x4)
180430 -18 1200  EG7SWC EB3JT JN01
182130 -10 1200  EG7SWC DL1IP JN49 (x2)
183300  -4 2825  EG7SWC PC9K JO22
184445 -20 1444  EG7SWC PA3GON JO22
185445 -11  709  EG7SWC DN9AD JO52
20m 
UTC    dB Audio  Message
073830  -4  585  CQ EG7SWC IM77
073930  -8  586  UR5VPR EG7SWC RR73
074100  -4  587  ON3JDK EG7SWC RR73
074115  +1  587  EG7SWC ON3JDK 73
074130  -5  588  CQ EG7SWC IM77 (x2)
074230  -5  588  MM7CEH EG7SWC +13
074330  -2  589  G8IXM EG7SWC -07
074400  -7  589  CQ EG7SWC IM77
074430  -4  589  F1IQH EG7SWC +01
074600 -10  589  CQ EG7SWC IM77                        a1
074800  -9  590  EA3ZH EG7SWC RR73
074830  -9  590  CQ EG7SWC IM77
074900  -3  591  UX7QV EG7SWC +06 (x2)
40m 
UTC    dB Audio  Message
051615 -15  977  EG7SWC DL6UM JO60 (x3)
051715  -7  409  EG7SWC 9A4ZM JN86
051745 -15  977  EG7SWC DL6UM JO60
051815 -18 1635  EG7SWC 9A4ZM -12 (x2)
052045  -7  490  EG7SWC DL6UM JO60 (x7)
053445  -9  417  EG7SWC HB9IRO JN46
80m 
UTC    dB Audio  Message
045945  +0 2649  EG7SWC IQ4JO JN63

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.

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