ZV8R — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Brazil Most frequent locator attributed to this token: GJ00

Receiver-side FT8 activity involving ZV8R, decoded by SO8OO in southeastern Poland. 58 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-21 and 2026-08-23.

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 58 FT8 messages attributed to ZV8R as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (93%), followed by 40 m (7%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

40m · 4 20m · 54

First attributed message: 2026-08-21
Last attributed message: 2026-08-23 07:13 UTC

Observed FT8 message patterns

Attributed sample: 58 messages
Active dates: 2 UTC dates
Estimated median S/N: -18 dB
Estimated 10th-90th percentile: -22 to -13 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 48, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 0.

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 ZV8R in decoded directed-looking exchanges:

IK4LZH · Italy ×3 DG6VC · Fed. Rep. of Germany ×2 DB5FW · Fed. Rep. of Germany ×2 EA3AAY · Spain ×2 DH5BM · Fed. Rep. of Germany DN9OPA · Fed. Rep. of Germany G1OZO · England HB9Q · Switzerland ON7GB · Belgium UX1AA · Ukraine 9A4ZM · Croatia DB9LG · Fed. Rep. of Germany

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 ZV8R

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: GJ00 · 4 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 9,307 km (approx.)
Last such locator decoded: 2026-08-21 22:11 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	ZV8R S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 09:41	20m	- / -	F6HST	-14 / -	2	Partial capture
08-23 09:38	20m	- / -13	DK8NX	+1 / -	3	✓ Closing fragment
08-23 09:33	20m	- / -10	MW0TSU	-12 / -	6	Partial capture
08-23 09:29	20m	- / -	DL4ZF	-2 / -	2	Partial capture
08-23 09:27	20m	- / -	F4BYA	-3 / -	2	Partial capture
08-23 09:25	20m	- / -	ON7SX	-14 / -	2	Partial capture
08-23 09:24	20m	- / -15	F1ODM	-8 / -	2	Partial capture
08-23 09:22	20m	- / -	F4BYA	+4 / -	2	Partial capture
08-23 09:22	20m	- / -	G1CEC	-11 / -	2	Partial capture
08-23 09:17	20m	- / -	EA5GX	-8 / -	2	Partial capture
08-23 09:16	20m	- / -	EA1IQM	-8 / -	2	Partial capture
08-23 09:16	20m	- / -	G1CEC	-15 / -	2	Partial capture
08-23 09:16	20m	- / -20	SV7BAY	-14 / -	4	Partial capture
08-23 09:11	20m	- / -	IU1TKQ	-6 / -	2	Partial capture
08-23 09:11	20m	- / -	RZ1OA	-12 / -	2	Partial capture
08-23 09:10	20m	- / -16	DF3VG	+5 / -	4	✓ Closing fragment
08-23 09:10	20m	- / -20	F1ODM	+2 / -	6	Partial capture
08-23 09:08	20m	- / -	IU1TKQ	-10 / -	2	Partial capture
08-23 09:05	20m	- / -16	IW1DQS	+3 / -	5	✓ Closing fragment
08-23 09:02	20m	- / -14	F5MJN	0 / -	2	✓ Closing fragment
08-23 09:01	20m	- / -13	IU1TKT	+4 / -	7	✓ Closing fragment
08-23 09:01	20m	- / -15	EA7FU	-14 / -	3	✓ Closing fragment
08-23 08:55	20m	- / -18	DL1PAB	+1 / -	9	Partial capture
08-23 08:49	20m	- / -21	IZ1KPU	-18 / -	2	Partial capture
08-23 08:49	20m	- / -	F4BYA	+5 / -	3	Partial capture
08-23 08:44	20m	- / -17	DL5XU	+12 / -	5	Partial capture
08-23 08:38	20m	- / -18	F4NBB	-2 / -	5	Partial capture
08-23 08:36	20m	- / -15	F4AYI	+8 / -	5	✓ Closing fragment
08-23 08:33	20m	- / -6	IK2XDF	-4 / -	2	✓ Closing fragment
08-23 08:29	20m	- / -	OK7TB	+8 / -	2	Partial capture
08-23 08:26	20m	- / -13	PD1HPB	-1 / -	4	✓ Closing fragment
08-23 08:21	20m	- / -15	DK9ZQ	-4 / -	7	Partial capture
08-23 07:25	20m	- / -3	F1PBZ	+1 / -	3	Partial capture
08-23 07:25	20m	- / -2	IK4LZH	-4 / -	3	✓ Closing fragment
08-23 07:24	20m	- / -	LZ2VQ	-4 / -	4	Partial capture
08-23 07:22	20m	- / -8	IS0AEL	-11 / -	2	Partial capture
08-23 07:21	20m	- / +3	F5SFT	+2 / -	4	✓ Closing fragment
08-23 07:21	20m	- / -	SP1TJ	-1 / -	2	Partial capture
08-23 07:20	20m	- / -2	DL4YBP	+4 / -	5	✓ Closing fragment
08-23 07:20	20m	- / -15	F1ODM	+6 / -	2	Partial capture
08-23 07:20	20m	- / -2	DM5LA	-7 / -	2	Partial capture
08-23 07:19	20m	- / -	F5SZA	-6 / -	2	Partial capture
08-23 07:19	20m	- / -	IK4YHJ	-11 / -	3	Partial capture
08-23 07:19	20m	- / -	DK9ZQ	+6 / -	2	Partial capture
08-23 07:18	20m	- / -3	G5MJF	-3 / -	2	Partial capture
08-23 07:16	20m	- / -14	9A4ZM	+4 / -	4	✓ Closing fragment
08-23 07:14	20m	- / -	F5OYA/P	-8 / -	2	Partial capture
08-23 07:13	20m	- / -8	EA3IDY	-6 / -	3	✓ Closing fragment
08-23 07:12	20m	- / -	9A4ZM	+2 / -	2	Partial capture
08-23 07:12	20m	- / -13	EA3E	+1 / -	5	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
092845  -2 1641  ZV8R PB0ACU JO22
092915  +1 1639  ZV8R DL4ZF JO40 (x2)
093315 -12 1928  ZV8R MW0TSU IO82 (x6)
093715  -7 2883  ZV8R F4BYA JN19
093815  +3 2023  ZV8R DK8NX JN59 (x3)
094145 -13  954  ZV8R F6HST JO11 (x2)

40m

UTC    dB Audio  Message
045845 -11 1590  ZV8R EA5RD IM98 (x4)
051015 -10 1413  ZV8R PE1NAO JO32 (x6)
052815  +1 2166  ZV8R ON6AA JO11
052845  -7 2181  ZV8R G0BLB IO81
052915  -2 2167  ZV8R ON6AA JO11 (x3)

10m

UTC    dB Audio  Message
204445  +4 2892  ZV8R DN9OPA JN38 (x4)
205815 -21 2124  ZV8R PA8R JO22
210115  -3 2950  ZV8R DO1FDK JO41 (x5)
211115  -7 2107  ZV8R HB9Q -16 (x5)

160m

UTC    dB Audio  Message
202830 -16 1664  ZV8R DJ0CL JN47 (x4)

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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