YO5QDN — 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: Romania Most frequent locator attributed to this token: KN17

Receiver-side FT8 activity involving YO5QDN, decoded by SO8OO in southeastern Poland. 711 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 58 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-05.

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 711 FT8 messages attributed to YO5QDN as the transmitting token by decoded message structure across 58 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (61%), followed by 40 m (20%) and 20 m (13%). Most decodes (64%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was +1 dB.

Overview

711
Messages attributed
58
UTC dates decoded
156
Active 15-min windows
+1 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-11-05 07:28 UTC

Observed FT8 message patterns

Attributed sample
711 messages
Active dates
58 UTC dates
Estimated median S/N
+1 dB
Estimated 10th-90th percentile
-12 to +11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 33, moderate (-15 to -9 dB) 88, strong (≥ -8 dB) 590.

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.

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 YO5QDN

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
KN17 · 568 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
285 km (approx.)
Last such locator decoded
2026-11-05 07:25 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 UTCBandYO5QDN S/NCounterpartCounterpart S/NMsgsCapture
11-05 07:24 40m -5 / - OM3WFH -4 / -3 6 Partial capture
11-04 19:41 80m - / - UA3ECJ +3 / - 5 Partial capture
11-04 19:41 80m - / -12 UR4UT +5 / - 2 Partial capture
11-04 19:41 80m - / - US3LX -9 / - 3 Partial capture
11-04 19:07 40m - / -16 DD0IPA -6 / - 9 Partial capture
11-04 08:06 40m -1 / -4 9A4ZM +6 / -19 5 Partial capture
11-04 08:05 40m - / -1 HA7TM +2 / - 3 Partial capture
11-02 20:28 80m -6 / -6 IU3WOZ -4 / -23 16 ✓ Full exchange observed
11-02 20:23 80m +2 / - DL7ACN - / - 2 Partial capture
11-02 20:14 80m -5 / -5 DO9KB +5 / -13 5 ✓ Full exchange observed
11-02 18:01 40m - / -1 IK2UJS +12 / - 3 Partial capture
11-02 16:54 60m - / - S57BTI -8 / - 2 Partial capture
11-02 16:48 60m - / - DD6ZV -8 / - 3 Partial capture
11-02 16:47 60m - / +5 ON7GB -7 / - 7 Partial capture
11-02 16:39 80m 0 / - OE3SGU -9 / -12 3 ✓ Closing observed
11-02 07:54 40m -12 / - YO3CWC -8 / -10 4 ✓ Closing observed
11-02 07:52 40m - / - IK3HTH -8 / - 2 ✓ Closing fragment
11-01 21:53 60m - / -7 OR7K -2 / - 2 ✓ Closing fragment
11-01 21:36 80m +1 / - SP2HYO -3 / -14 8 ✓ Closing observed
11-01 20:34 80m +6 / - HF50HSP - / -14 2 Partial capture
11-01 20:28 80m +2 / +5 RA2FCF +4 / -10 7 ✓ Full exchange observed
11-01 20:23 80m +5 / +9 RA2FCF +4 / - 8 Partial capture
11-01 20:14 80m +1 / -3 LY2BVB +13 / - 3 ✓ Closing observed
10-31 20:19 40m - / +7 IS0UVE -8 / - 8 ✓ Closing fragment
10-31 20:15 40m - / -17 7X2RF -4 / - 3 Partial capture
10-31 18:22 80m +6 / - R4FAH - / -25 4 Partial capture
10-31 18:17 60m - / - ON7GB +4 / - 2 Partial capture
10-31 18:15 60m +1 / - UN7EG - / - 9 Partial capture
10-31 17:57 60m -6 / - F5OYA/P - / -20 2 Partial capture
10-31 17:54 60m -4 / - S57AM - / - 6 Partial capture
10-31 15:37 60m - / - DM5CF -17 / - 3 Partial capture
10-31 15:36 60m - / - DC6MY -4 / - 2 Partial capture
10-31 15:36 60m - / - DL1IP -14 / - 5 Partial capture
10-31 15:36 60m - / - DL2DBH -8 / - 4 Partial capture
10-31 15:36 60m - / -10 F1PBZ -13 / - 3 Partial capture
10-31 15:36 60m - / - DD6ZV 0 / - 8 Partial capture
10-31 15:33 80m 0 / -18 UA3RMH -6 / -16 6 ✓ Full exchange observed
10-30 20:55 60m - / - DL5DQZ -18 / - 12 Partial capture
10-30 20:53 60m - / +4 DC5PPM -14 / - 2 ✓ Closing fragment
10-30 18:05 40m - / -11 YO4NF +2 / - 3 ✓ Closing fragment
10-30 15:01 60m -2 / - RA3WY - / - 5 Partial capture
10-29 22:55 60m - / -6 ON8FAB -16 / - 3 Partial capture
10-28 22:28 80m -3 / - EG5TES - / - 4 Partial capture
10-28 22:19 40m - / 0 R6OP 0 / - 4 ✓ Closing fragment
10-28 19:14 60m - / -4 S57MPU +6 / - 7 Partial capture
10-28 19:14 60m - / - DL5DQZ -10 / - 2 Partial capture
10-28 18:17 80m +2 / - UR4QWW - / - 2 Partial capture
10-28 18:02 60m - / -3 OT4N -8 / - 3 ✓ Closing fragment
10-28 18:02 60m - / -15 DC8SG -11 / - 8 Partial capture
10-28 18:01 60m - / +1 9A4ZM +2 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
190700  -4 1992  YO5QDN DD0IPA -16 (x9)
072430  -9 1960  OM3WFH YO5QDN KN17 (x2)
072715  -3 1992  YO5QDN OM3WFH +12 (x3)
072830  -4 1959  OM3WFH YO5QDN R-03
80m
UTC    dB Audio  Message
190900  -3 2213  YO5QDN IQ4JO JN63
190915  +1 1921  CQ YO5QDN KN17 (x3)
194130 -13 1202  YO5QDN US3LX KN89
194130  +5 1106  YO5QDN UR4UT -12
194130  +4 1767  YO5QDN UA3ECJ KO83
194145 -10 1921  CQ YO5QDN KN17                        a1
194200  -8 1202  YO5QDN US3LX KN89
194200  +5 1921  YO5QDN UR4UT -12
194200  +4 1767  YO5QDN UA3ECJ KO83
194230  -7 1202  YO5QDN US3LX KN89
194230  +5 1767  YO5QDN UA3ECJ KO83 (x3)
60m
UTC    dB Audio  Message
192900  +0 1860  YO5QDN IK4CBO JN54
215330  +0 2031  YO5QDN OR7K -07 (x2)
164715  -9 1577  YO5QDN ON7GB JO21 (x2)
164815  -5 1951  YO5QDN DD6ZV JO62 (x2)
164945  -6 1950  YO5QDN ON7GB JO21
165015 -16 1950  YO5QDN DD6ZV JO62
165045 -11 1950  YO5QDN ON7GB R+05 (x4)
165415  -8 1196  YO5QDN S57BTI JN75 (x2)
20m
UTC    dB Audio  Message
183245  +1  761  YO5QDN PC9F R+04 (x2)
143045 -12 3105  YO5QDN VU2FR ML88
180300 -10 2666  YO5QDN ZS6HON -17 (x2)
180800  +2 2472  YO5QDN DK1AJ JO42 (x4)
074430 +13 2578  YO5QDN PD7RF +00 (x2)
074900 -11 1446  ON3BEN YO5QDN KN17
074915 +12 1870  YO5QDN ON3BEN +00
075000  -9 1446  ON3BEN YO5QDN R-03
075015 +13 1870  YO5QDN ON3BEN RR73
10m
UTC    dB Audio  Message
144200 -10  679  YO5QDN A71AT -13
185145 -13 2076  YO5QDN RN6MA +02 (x2)
190015 -15 2291  YO5QDN CE2SV -17 (x3)
143745  +2 1038  YO5QDN UR1CCT R+16 (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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