DS3EXT — 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: Republic of Korea Most frequent locator attributed to this token: PM36

Receiver-side FT8 activity involving DS3EXT, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-08.

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 20 FT8 messages attributed to DS3EXT as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (65%), followed by 40 m (35%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (65%); the estimated median was -17 dB.

Overview

20
Messages attributed
6
UTC dates decoded
7
Active 15-min windows
-17 dB
Estimated median S/N

Bands

40m · 7 20m · 13
First attributed message: 2026-06-09
Last attributed message: 2026-09-08 16:29 UTC

Observed FT8 message patterns

Attributed sample
20 messages
Active dates
6 UTC dates
Estimated median S/N
-17 dB
Estimated 10th-90th percentile
-22 to -12 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 1.

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 DS3EXT in decoded directed-looking exchanges:

Most frequent locator attributed to DS3EXT

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
PM36 · 6 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,936 km (approx.)
Last such locator decoded
2026-09-08 16:25 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 UTCBandDS3EXT S/NCounterpartCounterpart S/NMsgsCapture
10-23 14:14 40m - / - OK2CNI 0 / - 3 Partial capture
09-16 13:08 40m - / -13 RY3D +2 / - 3 ✓ Closing fragment
09-08 16:26 40m -18 / -6 RA6ZS -4 / -14 7 ✓ Full exchange observed
09-08 16:26 40m - / -12 YO8RAW +12 / - 3 ✓ Closing fragment
09-08 16:25 40m -20 / -16 RN6HGI +1 / -13 3 ✓ Full exchange observed
09-08 16:23 40m -22 / -16 RN6MA +3 / -13 3 ✓ Full exchange observed
08-27 14:18 20m -17 / - WK3A - / - 3 Partial capture
08-25 14:51 20m - / - G3YCH -4 / - 5 Partial capture
08-25 14:49 20m -11 / -16 F4MSA +2 / -25 6 ✓ Full exchange observed
08-25 14:47 20m - / -10 R4HNT +6 / - 2 ✓ Closing fragment
08-24 22:10 40m - / - A71AH -10 / - 3 Partial capture
08-20 13:50 20m -16 / - SO1CJ - / -20 2 ✓ Closing fragment
08-20 13:49 20m -16 / - SP7IIT - / -8 2 ✓ Closing fragment
08-20 13:48 20m - / -8 R5AV -11 / - 2 ✓ Closing fragment
08-08 18:05 20m - / - DL1API +1 / - 3 Partial capture
08-08 18:02 20m - / - DL1R +3 / - 7 Partial capture
08-04 22:39 20m - / -5 CU2AP -6 / - 2 ✓ Closing fragment
08-04 13:50 20m - / - F1PFU -20 / - 2 Partial capture
08-04 13:44 20m - / - F1PFU -14 / - 2 Partial capture
08-04 13:40 20m - / - F1PFU -17 / - 3 Partial capture
08-02 14:48 20m - / - G6TEQ -6 / - 2 Partial capture
08-02 14:43 20m - / - RZ4FWA -11 / - 4 Partial capture
07-28 14:18 20m - / - RA6AVP -16 / - 2 Partial capture
07-28 14:17 20m - / -6 R2SN -14 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
162730  -8  628  DS3EXT RA6ZS KN98
162745 -19 2235  RA6ZS DS3EXT -14
162800  -2  628  DS3EXT RA6ZS R-06
162815 -17 2236  RA6ZS DS3EXT RR73
162830  -1  628  DS3EXT RA6ZS 73
162915 -17 2235  SP7FID DS3EXT 73
130600  +0 2597  DS3EXT RY3D KO95 (x4)
133930 +17  465  DS3EXT UR1CCT KN69
134800  +3 1985  DS3EXT YO9PH -13
141400  +1 2464  DS3EXT OK2CNI JN79 (x3)
80m 
UTC    dB Audio  Message
022430  +0 1588  DS3EXT OH5XX KP30
20m 
UTC    dB Audio  Message
144930  +3  419  DS3EXT F4MSA -16 (x3)
145045 -11  419  F4MSA DS3EXT R-25
145100  -6  776  DS3EXT G3YCH IO80
145100  +3  419  DS3EXT F4MSA RR73
145130  -4  776  DS3EXT G3YCH IO80 (x2)
145230 -13 2579  DS3EXT RA9MLJ 73
145230  -2  776  DS3EXT G3YCH IO80 (x2)
145330  +6  420  DS3EXT F4MSA 73
141800 -22 1402  WK3A DS3EXT PM36 (x3)

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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