PY7ZZ — 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: Brazil Most frequent locator attributed to this token: HI21

Receiver-side FT8 activity involving PY7ZZ, decoded by SO8OO in southeastern Poland. 11 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-10-22.

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 11 FT8 messages attributed to PY7ZZ as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

40m · 11

First attributed message: 2026-10-22
Last attributed message: 2026-10-22 03:58 UTC

Observed FT8 message patterns

Attributed sample: 11 messages
Active dates: 1 UTC dates
Estimated median S/N: -12 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 9, 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 PY7ZZ in decoded directed-looking exchanges:

ON4TO · Belgium OZ0A · Denmark EA3NE · Spain KJ5PTH · United States RC9A · Asiatic Russia RC9WC · Asiatic Russia RU4SO · European Russia

Most frequent locator attributed to PY7ZZ

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: HI21 · 9 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,493 km (approx.)
Last such locator decoded: 2026-10-22 03:56 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	PY7ZZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 04:07	40m	- / -16	RA3TKS	+1 / -	4	Partial capture
10-22 04:04	40m	- / -18	EA3NE	+4 / -	2	✓ Closing fragment
10-22 03:46	40m	-18 / -	R1QF/P	- / -	2	Partial capture
10-22 03:43	40m	- / -16	RU4SO	0 / -	2	✓ Closing fragment
10-22 03:34	160m	- / -	OM0RX	+4 / -	4	Partial capture
10-17 06:55	40m	- / -	SO1CJ	+2 / -	2	Partial capture
10-17 06:49	40m	- / -	SO1CJ	-3 / -	3	Partial capture
10-07 03:41	40m	- / -16	RC9WC	-12 / -	2	✓ Closing fragment
09-28 22:10	40m	- / -	DK7QJ	+7 / -	3	Partial capture
09-22 19:54	40m	- / -12	IZ7ECL	+4 / -	3	Partial capture
08-28 17:44	10m	- / -	IK8HJG	-16 / -	2	Partial capture
08-18 15:21	10m	- / -11	ON4TO	-17 / -	3	✓ Closing fragment
08-18 14:09	10m	- / -10	OZ0A	+8 / -	2	✓ Closing fragment
08-18 13:58	10m	- / -1	<...>	-8 / -	7	Partial capture
08-14 18:36	80m	- / -	YO4LUP	-4 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
034815 -11  762  P4/WE9V PY7ZZ HI21
035145 -12  763  CQ PY7ZZ HI21                         a1 (x2)
035345 -10  763  KJ5PTH PY7ZZ RR73
035545 -13  763  CQ PY7ZZ HI21 (x2)
035630 -15  764  PY7ZZ EB2EMZ IN83
035845 -11  763  SP9UXS PY7ZZ R-21
040200  +0 2900  PY7ZZ RA3TKS -12
040400  +6 2654  PY7ZZ EA3NE -18 (x2)
040730  +7 2900  PY7ZZ RA3TKS -16 (x4)

160m

UTC    dB Audio  Message
033415  +2 1502  PY7ZZ OM0RX JN88 (x4)

80m

UTC    dB Audio  Message
183630  -1 1009  PY7ZZ YO4LUP KN43 (x2)
034915  +7 2535  PY7ZZ F5MOO JN07

10m

UTC    dB Audio  Message
135815 -10  945  PY7ZZ <...> -01 (x7)
140945  +9  627  PY7ZZ OZ0A -10 (x2)
152130 -21 2029  PY7ZZ ON4TO JO11 (x3)
174415 -17 2311  PY7ZZ IK8HJG JN70 (x2)

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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