YO7OI — 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: KN14

Receiver-side FT8 activity involving YO7OI, decoded by SO8OO in southeastern Poland. 71 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-11-02.

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 71 FT8 messages attributed to YO7OI as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (34%), followed by 60 m (31%) and 40 m (20%). Several six-hour UTC windows tied for the largest share (87%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -5 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 11 60m · 22 40m · 14 20m · 24

First attributed message: 2026-06-09
Last attributed message: 2026-11-02 16:16 UTC

Observed FT8 message patterns

Attributed sample: 71 messages
Active dates: 9 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -13 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 48.

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 YO7OI in decoded directed-looking exchanges:

UN0GY · Kazakhstan N3LAG · United States 9A4ZM · Croatia DK7UY · Fed. Rep. of Germany DL9KM · Fed. Rep. of Germany F5MXH · France IN3IZQ · Italy LY2BVB · Lithuania PC2J · Netherlands PE1NPS · Netherlands SP9SOS · Poland SP9UPH · Poland

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 YO7OI

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: KN14 · 40 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 611 km (approx.)
Last such locator decoded: 2026-11-02 16:16 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	YO7OI S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-02 16:16	40m	-12 / -	TK5NJ	- / -	2	Partial capture
11-02 16:04	80m	- / -	DO1DLE	-5 / -	2	Partial capture
11-02 16:02	80m	-6 / -	EX7DY	- / -9	3	✓ Closing fragment
10-31 06:07	60m	-1 / -	G8OO	-4 / -17	10	Partial capture
10-31 06:05	60m	+1 / -	IN3IZQ	- / -16	3	✓ Closing fragment
10-31 06:03	60m	-6 / -	G8OO	- / -	3	Partial capture
10-31 06:02	60m	-8 / -	US2YW	- / -14	2	Partial capture
10-31 06:00	60m	-5 / -20	PE1NPS	+6 / -	4	✓ Closing observed
10-31 06:00	60m	- / -12	SP9SOS	-10 / -	2	✓ Closing fragment
10-31 05:57	60m	- / -	SP9SOS	-8 / -	2	Partial capture
10-31 05:55	60m	+2 / 0	DL9KM	-16 / -19	5	✓ Full exchange observed
10-31 05:54	60m	0 / -4	SP9UPH	-1 / +3	5	✓ Full exchange observed
10-31 05:53	60m	-3 / +3	F5MXH	-16 / -12	4	✓ Full exchange observed
10-31 05:52	60m	-2 / -11	9A4ZM	+4 / -11	4	✓ Full exchange observed
10-31 05:52	60m	- / -	DG7AK	-14 / -	4	Partial capture
10-31 05:51	60m	-13 / -15	PC2J	-5 / -	3	✓ Closing observed
10-31 05:49	60m	-2 / -1	LY2BVB	-9 / -10	4	✓ Full exchange observed
10-31 05:48	60m	-16 / -7	DK7UY	-14 / -6	4	✓ Full exchange observed
09-24 03:50	80m	+4 / -	9Y4D	- / -	3	Partial capture
09-07 04:54	40m	-6 / -16	N3LAG	-15 / -15	5	✓ Full exchange observed
08-23 06:39	20m	- / -	RZ4FWA	-8 / -	4	Partial capture
08-23 06:36	20m	- / -14	UN0GY	0 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
045415  -9 1806  N3LAG YO7OI KN14
045430 -15  359  YO7OI N3LAG -16
045445  -4 1805  N3LAG YO7OI R-15 (x3)
045645  +1 1805  F4BYA YO7OI -10
161600 -14  668  TK5NJ YO7OI KN14 (x2)

80m

UTC    dB Audio  Message
035000  +8 2961  9Y4D YO7OI KN14 (x3)
045215  -6 2641  <PJ2/W4IPC> YO7OI KN14
045300  -3 2641  GU4WRP YO7OI KN14
160215  -6  630  EX7DY YO7OI KN14 (x3)
160345 -13  629  CQ YO7OI KN14 (x2)
160430  -7 1025  YO7OI R9FF LO88
160430  -4  630  YO7OI DO1DLE JO31
160445  -5  630  CQ YO7OI KN14
160500  -6  630  YO7OI DO1DLE JO31

60m

UTC    dB Audio  Message
060400  -7 1142  G8OO YO7OI KN14
060545  +2 1142  IN3IZQ YO7OI KN14
060545 -19 1251  YO7OI EA4ETU IM68
060615  -1 1142  IN3IZQ YO7OI R-16 (x2)
060700 -10  590  YO7OI G8OO JO02 (x9)
061145  -1 1142  G8OO YO7OI -17

20m

UTC    dB Audio  Message
063630  -1 2662  YO7OI UN0GY -14 (x3)
063900  -6 2070  YO7OI RZ4FWA LO23 (x4)
143945 -17 2687  RI1FJL YO7OI KN14

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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