VU2YYF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: India Most frequent locator attributed to this token: MK82

Receiver-side FT8 activity involving VU2YYF, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-12 and 2026-09-21.

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 18 FT8 messages attributed to VU2YYF as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (94%), followed by 40 m (6%). In this small sample, the estimated median decoder S/N was -14 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

40m · 1 20m · 17

First attributed message: 2026-08-12
Last attributed message: 2026-09-21 01:19 UTC

Observed FT8 message patterns

Attributed sample: 18 messages
Active dates: 4 UTC dates
Estimated median S/N: -14 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 2.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with VU2YYF in decoded directed-looking exchanges:

HK5JHY · Colombia KE1R · United States RI1FJL · Franz Josef Land RK6AAC · European Russia WT1A · United States XQ1KK · Chile 5B4AMM · Cyprus JY5IB · Jordan

Most frequent locator attributed to VU2YYF

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: MK82 · 9 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 6,492 km (approx.)
Last such locator decoded: 2026-09-21 01:19 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	VU2YYF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 01:19	40m	-14 / -2	OD5ZZ	-12 / -	2	Partial capture
09-12 01:37	40m	- / -17	5B4AMM	0 / -	2	✓ Closing fragment
08-28 01:48	20m	- / -	KC3WOX	-20 / -	2	Partial capture
08-28 01:47	20m	- / -12	W3YNI	-17 / -	2	Partial capture
08-28 01:44	20m	- / -	WA1W	-13 / -	11	Partial capture
08-28 01:43	20m	-17 / -	HK5JHY	- / -15	2	✓ Closing fragment
08-28 01:43	20m	-20 / +1	KE1R	+11 / -9	5	✓ Full exchange observed
08-28 01:42	20m	-11 / -1	W3YNI	-19 / -	5	Partial capture
08-28 01:41	20m	- / -	NG4M	-4 / -	10	Partial capture
08-28 01:41	20m	-6 / -12	TJ1GD	-7 / -	3	Partial capture
08-28 01:38	20m	-11 / -12	XQ1KK	-6 / -13	7	✓ Full exchange observed
08-27 16:04	20m	- / -	PD1ADA	-5 / -	5	Partial capture
08-27 16:02	20m	-16 / -	RI1FJL	- / -12	2	✓ Closing fragment
08-23 02:22	20m	- / -7	NM1G	-3 / -	3	Partial capture
08-07 11:51	20m	- / -19	EM90ZMV	-9 / -	3	Partial capture
08-07 01:51	20m	- / -	KE4EB	-19 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
013630 -14 1844  VU2YYF JY5IB RR73
013730  -1 1272  VU2YYF 5B4AMM -17 (x2)
014030 -17 1058  VU2YYF PI4DX -25
011900 -14  881  OD5ZZ VU2YYF MK82
011915 -12  570  VU2YYF OD5ZZ -02

20m

UTC    dB Audio  Message
014545  -4 2666  VU2YYF NG4M EM93
014600 -14 1690  VU2YYF WA1W FN31
014600 +10 2843  VU2YYF KE1R 73
014700 -15 1690  VU2YYF WA1W FN31 (x2)
014730 -21 1428  VU2YYF W3YNI -12
014830 -13 1520  VU2YYF WA1W FN31
014830 -13 1428  VU2YYF W3YNI -12
014845 -21 1997  VU2YYF KC3WOX FN00
014900 -11 1520  VU2YYF WA1W FN31
014915 -19 1997  VU2YYF KC3WOX FN00
014930 -14 1520  VU2YYF WA1W FN31 (x3)
183215 -16 2370  VU2YYF LB8MG -06

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