YO5MOA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania Most frequent locator attributed to this token: KN06

Receiver-side FT8 activity involving YO5MOA, decoded by SO8OO in southeastern Poland. 45 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-16.

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 45 FT8 messages attributed to YO5MOA as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (44%), followed by 40 m (29%) and 80 m (27%). Most decodes (60%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -4 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

80m · 12 40m · 13 20m · 20

First attributed message: 2026-06-07
Last attributed message: 2026-09-16 20:58 UTC

Observed FT8 message patterns

Attributed sample: 45 messages
Active dates: 13 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -19 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 34.

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 YO5MOA in decoded directed-looking exchanges:

I5PU · Italy UA6YW · European Russia F4HSB · France G8OO · England N6AV · United States RA6HN · European Russia SP6FME · Poland ZL1RPC · New Zealand

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 YO5MOA

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: KN06 · 43 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 387 km (approx.)
Last such locator decoded: 2026-09-16 20:58 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 UTC	Band	YO5MOA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 20:52	80m	-1 / -	RI1FJZ	- / -	7	Partial capture
09-12 04:16	80m	+2 / -	Z62NS	- / -	2	Partial capture
09-06 08:54	40m	-4 / -	Z62NS	- / -	3	Partial capture
09-06 05:16	40m	-5 / -	Z62NS	- / -	4	Partial capture
09-06 05:15	40m	-2 / -	J38LD	- / -	2	Partial capture
09-03 12:47	40m	-13 / -	<...>	- / -	2	Partial capture
09-01 19:03	80m	-18 / -	P29YY	- / -	2	Partial capture
08-28 04:40	20m	- / -15	ZL3BWE	-15 / -	2	Partial capture
08-26 04:31	20m	- / -13	ZL1RPC	-8 / -	4	✓ Closing fragment
08-26 03:58	20m	- / -10	RA6HN	0 / -	3	✓ Closing fragment
08-26 03:55	20m	- / -	RA6HN	+2 / -	2	Partial capture
08-25 04:07	20m	- / -13	N6AV	-6 / -	2	✓ Closing fragment
08-02 04:38	20m	- / -15	G8OO	+5 / -	3	✓ Closing fragment
07-22 19:37	10m	- / 0	UA6YW	-14 / -	2	✓ Closing fragment
07-18 19:27	20m	-12 / -	OY1R	- / -	3	Partial capture
07-08 11:17	20m	- / +1	F4HSB	-24 / -	3	✓ Closing fragment
07-05 17:23	10m	- / -2	I5PU	-20 / -	3	✓ Closing fragment
07-04 12:06	20m	- / -	F4HSB	-20 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
190345 -16 1868  P29YY YO5MOA KN06 (x2)
040645  +3 1633  7X5CY YO5MOA KN06
041615  -2 1865  Z62NS YO5MOA KN06 (x2)
205245  -4 1366  RI1FJZ YO5MOA KN06 (x7)

40m

UTC    dB Audio  Message
124715 -14 1877  <...> YO5MOA KN06 (x2)
034230 -23 1837  KK7UXY YO5MOA KN06
051500  -3 2004  J38LD YO5MOA KN06 (x2)
051645  -6 2004  Z62NS YO5MOA KN06 (x7)
153915 -13 1283  RI1FJZ YO5MOA KN06

20m

UTC    dB Audio  Message
043900  +8  270  YO5MOA G8OO R-15 (x2)
040745  -5 2610  YO5MOA N6AV -13 (x2)
035500  +2 2696  YO5MOA RA6HN LN14 (x5)
043130  -7  807  YO5MOA ZL1RPC -13 (x4)
044045 -17 2384  YO5MOA ZL3BWE -15 (x2)

10m

UTC    dB Audio  Message
172315 -21 2069  YO5MOA I5PU JN53 (x3)
193745 -14 1762  YO5MOA UA6YW +00 (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.

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