YO5QDI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania Most frequent locator attributed to this token: KN17

Receiver-side FT8 activity involving YO5QDI, decoded by SO8OO in southeastern Poland. 329 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 10 UTC dates in the available aggregate history. Observed between 2026-07-03 and 2026-08-31.

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 329 FT8 messages attributed to YO5QDI as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (67%), followed by 40 m (26%) and 60 m (8%). Several six-hour UTC windows tied for the largest share (78%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was +7 dB.

Overview

329
Messages attributed
10
UTC dates decoded
27
Active 15-min windows
+7 dB
Estimated median S/N

Bands

80m · 219 60m · 26 40m · 84
First attributed message: 2026-07-03
Last attributed message: 2026-08-31 19:52 UTC

Observed FT8 message patterns

Attributed sample
329 messages
Active dates
10 UTC dates
Estimated median S/N
+7 dB
Estimated 10th-90th percentile
-17 to +13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 52, moderate (-15 to -9 dB) 33, strong (≥ -8 dB) 244.

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 YO5QDI 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 YO5QDI

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 · 226 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
285 km (approx.)
Last such locator decoded
2026-08-31 19:52 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 UTCBandYO5QDI S/NCounterpartCounterpart S/NMsgsCapture
08-31 19:47 80m -4 / - EA4ERZ - / -16 2 ✓ Closing fragment
08-31 19:40 80m -1 / - SM7WVZ -8 / -15 4 ✓ Closing observed
08-31 19:37 80m +4 / - YL2NX - / - 5 Partial capture
08-31 19:35 80m +5 / -9 UA6HFI -16 / -8 4 ✓ Full exchange observed
08-31 19:30 80m +6 / -4 DK9AM -8 / -12 5 ✓ Full exchange observed
08-31 19:27 80m +4 / -7 RN7B -12 / -5 5 ✓ Full exchange observed
08-31 19:25 80m +10 / - DG4BZ - / -20 2 ✓ Closing fragment
08-31 19:21 80m +3 / - SV1PIZ -10 / -6 3 ✓ Closing observed
08-31 19:18 80m +9 / -18 HB9FAN -1 / -5 7 ✓ Full exchange observed
08-31 19:16 80m +9 / -7 SV1PIZ -15 / - 6 Partial capture
08-31 17:55 20m - / - IW5ALZ -2 / - 3 ✓ Closing fragment
08-30 18:49 20m - / - DB1EF -6 / - 2 Partial capture
08-30 18:34 20m - / -8 M0CKX -10 / - 4 ✓ Closing fragment
08-30 18:09 20m - / +9 PD0PWH -11 / - 3 ✓ Closing fragment
08-29 17:47 20m - / -10 LX7I +6 / - 2 ✓ Closing fragment
08-28 18:51 80m +12 / - RA4FHO +3 / -4 3 ✓ Closing observed
08-28 18:51 80m +14 / - OH1JUV -13 / -11 3 ✓ Closing observed
08-28 18:46 80m +10 / -8 SP5DFK -3 / -10 14 ✓ Full exchange observed
08-28 18:44 80m +6 / - SP5GW -8 / -16 4 ✓ Closing observed
08-28 18:43 80m +6 / -13 DO8JB -7 / -14 5 ✓ Full exchange observed
08-28 18:41 80m +4 / - RA8AM - / -18 2 ✓ Closing fragment
08-28 18:39 80m +6 / - RD9U - / -16 3 ✓ Closing fragment
08-28 18:37 80m +6 / - R8CKD - / -15 3 ✓ Closing fragment
08-28 18:16 60m - / +4 ER1CW -11 / - 3 Partial capture
08-28 18:13 60m -3 / - ER1CW - / - 2 Partial capture
08-27 18:52 60m +8 / -13 EA5BY -19 / -11 5 Partial capture
08-27 18:44 60m +3 / -12 IK4CBO -8 / -6 6 ✓ Full exchange observed
08-27 18:43 60m +6 / - ER1CW - / - 4 Partial capture
08-27 08:58 10m - / -4 RD9U -4 / - 2 ✓ Closing fragment
08-03 18:22 60m -4 / - <...> - / - 2 Partial capture
08-03 11:29 20m - / -19 YO1BRANCUSI -10 / - 2 Partial capture
08-03 11:26 20m - / -14 PD5FL -13 / - 8 ✓ Closing fragment
08-03 10:53 20m - / -6 DK3HV -8 / - 3 ✓ Closing fragment
07-30 09:43 20m - / - RA6OV -8 / - 2 Partial capture
07-30 07:50 40m -12 / - 9A6NCC - / - 6 Partial capture
07-30 07:37 40m -19 / - SQ5PTZ - / -10 3 ✓ Closing fragment
07-30 07:30 40m -18 / +3 OE4BHF -22 / -7 10 Partial capture
07-30 07:23 40m -20 / - HA3GX -23 / -4 3 Partial capture
07-30 07:20 40m -18 / - SQ5PTZ - / +1 2 Partial capture
07-30 07:14 40m -16 / - E70NA - / - 2 Partial capture
07-14 08:08 40m -16 / - OE2VDL - / - 4 Partial capture
07-14 07:58 40m -16 / - TK4QP - / -20 6 ✓ Closing fragment
07-13 08:58 10m - / - DH1GKS -8 / - 2 Partial capture
07-13 08:46 10m - / -12 IZ6CLN -10 / - 3 ✓ Closing fragment
07-13 08:41 10m - / -20 R7DX -12 / - 2 ✓ Closing fragment
07-10 19:04 80m +10 / +7 DF1IH -6 / - 5 ✓ Closing observed
07-10 19:00 80m +14 / - OD5SB -22 / -12 5 ✓ Closing observed
07-10 18:58 80m +13 / - R3RDP - / -15 2 ✓ Closing fragment
07-10 18:55 80m +11 / - <...> - / +1 3 Partial capture
07-10 18:50 80m - / -5 IK2FTB -24 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
194145  -7  889  SM7WVZ YO5QDI R-15
194200  -8  355  YO5QDI SM7WVZ RR73
194415  -5  889  CQ YO5QDI KN17 (x4)
194715  -5  889  EA4ERZ YO5QDI -16 (x2)
194815  -3  889  CQ YO5QDI KN17 (x7)
20m 
UTC    dB Audio  Message
180930  -9 1704  YO5QDI PD0PWH JO21 (x3)
181430 -15 2004  YO5QDI RA4HG RR73
181630 -17 1958  YO5QDI OZ1BUR 73
183400  -6 1609  YO5QDI M0CKX IO93 (x4)
184930  -7 1564  YO5QDI DB1EF JO41 (x2)
175545  +6 2966  YO5QDI IW5ALZ JN53 (x3)
175915  -2  971  YO5QDI M0PPT -11
60m 
UTC    dB Audio  Message
185000  +8 2968  CQ YO5QDI KN17 (x5)
185215 -19 2230  YO5QDI EA5BY -13
185300 +10 2969  EA5BY YO5QDI R-11 (x4)
181300  -4  894  ER1CW YO5QDI KN17 (x2)
181615 -12 1579  YO5QDI ER1CW +04 (x3)
10m 
UTC    dB Audio  Message
081045 +11  590  YO5QDI IK4LZH JN54 (x3)
084100 -11 1937  YO5QDI R7DX R-20 (x2)
084600 -11  704  YO5QDI IZ6CLN 73 (x3)
085100  -3 1281  YO5QDI DH1GKS JN38 (x3)
190115 -20 1776  YO5QDI 7X/EA1FMJ -08
190645 -24 1613  YO5QDI CT1EEX RR73
085815  -2 2922  YO5QDI RD9U -04 (x2)
40m 
UTC    dB Audio  Message
074415 -21 1418  CQ YO5QDI KN17                        a1 (x9)
075030 -10 1417  9A6NCC YO5QDI KN17 (x6)

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.

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