R7ZL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KN98

Receiver-side FT8 activity involving R7ZL, decoded by SO8OO in southeastern Poland. 1,061 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 20 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-04.

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 1,061 FT8 messages attributed to R7ZL as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (63%), followed by 20 m (19%) and 80 m (18%). Most decodes (53%) fell within the six-hour window 23:00-05:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -6 dB.

Overview

1,061

Messages attributed

UTC dates decoded

100

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 194 40m · 670 20m · 197

First attributed message: 2026-06-11
Last attributed message: 2026-09-04 16:54 UTC

Observed FT8 message patterns

Attributed sample: 1,061 messages
Active dates: 20 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -17 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 150, moderate (-15 to -9 dB) 208, strong (≥ -8 dB) 703.

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 R7ZL in decoded directed-looking exchanges:

UK8FCM · Uzbekistan ×3 HB9CXZ · Switzerland ×2 RA1PO · European Russia ×2 F5OYA/P · France ×2 CT2GQA · Portugal ×2 IK6GPZ · Italy ×2 RX9WM · Asiatic Russia ×2 IK4LZH · Italy ×2 UA3ZUX · European Russia ×2 DK0ACI · Fed. Rep. of Germany ×2 RT2P · European Russia ×2 R6ZQ · European Russia

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 R7ZL

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: KN98 · 675 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,257 km (approx.)
Last such locator decoded: 2026-09-04 16:54 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	R7ZL S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 16:51	40m	-8 / -9	DL1EDR	-1 / -14	7	✓ Full exchange observed
09-04 16:46	40m	+5 / -	UR5VLC	-7 / -3	4	Partial capture
09-04 16:46	40m	-6 / -	RA6MQ	-6 / -9	3	✓ Closing observed
09-04 16:31	40m	+7 / 0	RW3ZC	+4 / -13	4	✓ Full exchange observed
09-04 01:29	40m	-3 / -	BG0FQU	- / -17	3	✓ Closing fragment
09-04 01:26	40m	- / -	M0PFX	-19 / -	2	Partial capture
09-04 01:18	40m	-4 / -	RC8SAB	-21 / -3	3	✓ Closing observed
09-04 01:15	40m	0 / -8	HB9CXZ	+8 / -6	6	✓ Full exchange observed
09-04 01:13	40m	-6 / -	F5OYA/P	- / -14	2	✓ Closing fragment
09-04 01:02	40m	-3 / -	W4CHA	- / -11	2	✓ Closing fragment
09-04 00:58	40m	0 / -12	SV2FNT	-6 / -7	4	✓ Full exchange observed
09-04 00:54	40m	-6 / -	RC9OC	- / -	5	✓ Closing fragment
09-04 00:51	40m	+5 / -	IZ8PPI	- / -7	2	✓ Closing fragment
09-02 02:24	40m	-16 / -	EW6TW	- / -	2	Partial capture
09-02 02:22	40m	-7 / -	IK3FHW/IT9	- / -16	3	Partial capture
09-02 02:18	40m	-5 / -	YO2MOO	- / -19	4	✓ Closing fragment
09-02 02:17	40m	-4 / -	PV8AJ	- / -	2	Partial capture
09-02 02:15	40m	-4 / -	YT2FA	- / -13	3	✓ Closing fragment
09-02 02:13	40m	-4 / -14	DL1OBF	-8 / -10	4	✓ Full exchange observed
09-02 02:12	40m	-13 / -	EU1KI	- / -	2	Partial capture
09-02 02:08	40m	-5 / -	HA7JDU	- / -14	3	✓ Closing fragment
09-02 01:55	40m	- / -	R6ZAJ	-10 / -	2	Partial capture
09-02 01:44	40m	-10 / -	UA4POO	-20 / -8	3	✓ Closing observed
09-02 01:43	40m	-2 / -3	ON8FAB	-15 / -18	3	Partial capture
09-02 01:42	40m	-7 / -	RZ9Y	- / -20	3	✓ Closing fragment
09-02 01:39	40m	-10 / -	RX9WM	- / -3	3	✓ Closing fragment
09-02 01:37	40m	-10 / -	SP5MXY	- / -18	3	✓ Closing fragment
09-02 01:32	40m	-6 / +5	RZ4FWA	-19 / -12	3	✓ Full exchange observed
09-02 01:26	40m	-5 / -	PY2DPM	- / -18	3	✓ Closing fragment
09-01 01:06	40m	-11 / -	R2ZCA	- / -	2	Partial capture
09-01 00:56	40m	-8 / -	HI8J	- / -	4	Partial capture
09-01 00:54	40m	-9 / -	OE3FVU	- / -20	3	✓ Closing fragment
09-01 00:52	40m	-7 / -16	M0VTS	-11 / -17	5	✓ Full exchange observed
09-01 00:50	40m	-5 / -	<...>	- / -17	2	Partial capture
09-01 00:41	40m	-4 / -2	RD9U	-8 / -7	5	✓ Full exchange observed
08-30 01:50	80m	-1 / -	RN6DE	- / -9	3	✓ Closing fragment
08-30 01:48	80m	- / -	F4BYA	+6 / -	4	Partial capture
08-30 01:45	80m	+4 / -4	UB4CJS	-2 / -	3	✓ Closing observed
08-30 01:43	80m	- / -	DO7BE	-2 / -	3	Partial capture
08-30 01:43	80m	0 / -7	HB9CXZ	+7 / -11	5	✓ Full exchange observed
08-30 01:43	80m	- / -	F4BYA	+5 / -	4	Partial capture
08-30 01:41	80m	- / -	EA1CQ	-7 / -	6	Partial capture
08-30 01:38	80m	+2 / -12	DL9ATW	+3 / -18	11	✓ Full exchange observed
08-30 01:38	80m	+1 / -16	YO8XFU	+1 / -11	6	✓ Full exchange observed
08-30 01:36	80m	0 / -	R7BN	-4 / -6	4	✓ Closing observed
08-30 01:35	80m	-2 / -	RV3SBS/P	- / -17	2	✓ Closing fragment
08-30 01:33	80m	-6 / -4	UA6HFI	+2 / -13	4	✓ Full exchange observed
08-30 01:32	80m	- / -	DO5PY	-3 / -	3	Partial capture
08-26 18:12	40m	-1 / -	R3BBM	- / -13	4	Partial capture
08-26 18:07	40m	-8 / -	R3SV	-6 / -	2	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
164830  -4  940  CQ R7ZL KN98
164930  +0  940  RA1PO R7ZL RR73
165000  -1  940  CQ R7ZL KN98 (x3)
165115  +3  940  R7ZL DL1EDR JO41 (x2)
165200  -8  939  DL1EDR R7ZL -14
165215  -4  935  R7ZL DL1EDR R-09
165230  -5  938  DL1EDR R7ZL RR73
165245  -1  936  R7ZL DL1EDR 73
165300 -11  938  DL1EDR R7ZL RR73
165330  -7  938  CQ R7ZL KN98
165345 -10  942  R7ZL R6DUW KN96
165400  -6  938  CQ R7ZL KN98

80m

UTC    dB Audio  Message
015230  -4 2257  CQ R7ZL KN98 (x15)

20m

UTC    dB Audio  Message
111630 -12  956  M9NTS R7ZL RR73
111715  -7  955  R7ZL PA0ARR -02
111730  -9  956  CQ R7ZL KN98
111745 -12  955  R7ZL PA0ARR -02
111800 -10  956  CQ R7ZL KN98
111815 -10  955  R7ZL PA0ARR -02
111830 -16  956  GM0SDV R7ZL R-12
111845 -12  955  R7ZL GM0SDV RRR
111900 -17  956  GM0SDV R7ZL 73
112000 -14  956  CQ R7ZL KN98
112200  -9  956  SP2LKP R7ZL -09
112400  -7  956  R9OX R7ZL -09 (x2)
112600 -11  956  RA9AMO R7ZL R-04 (x2)

10m

UTC    dB Audio  Message
090330  +9 2344  R7ZL RA3DX +01 (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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