SP9JZ — 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: Poland Most frequent locator attributed to this token: JO72

Receiver-side FT8 activity involving SP9JZ, decoded by SO8OO in southeastern Poland. 19 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-13 and 2026-09-16.

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 19 FT8 messages attributed to SP9JZ as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (89%), followed by 40 m (11%). In this small sample, the estimated median decoder S/N was -20 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-20 dB

Estimated median S/N

Bands

80m · 17 40m · 2

First attributed message: 2026-07-13
Last attributed message: 2026-09-16 22:34 UTC

Observed FT8 message patterns

Attributed sample: 19 messages
Active dates: 3 UTC dates
Estimated median S/N: -20 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 7.

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 SP9JZ in decoded directed-looking exchanges:

F4DZF/P · France F5RRS · France HP1RY · Panama K4YT · United States M7VME · England YO4NF · Romania DO9BAU · Fed. Rep. of Germany HA7TM · Hungary SP9TBT · Poland

Most frequent locator attributed to SP9JZ

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: JO72 · 4 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 552 km (approx.)
Last such locator decoded: 2026-07-17 22:50 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	SP9JZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 21:28	160m	- / -4	HA7TM	+14 / -	3	Partial capture
09-16 22:29	80m	- / -	UA4FKT	+2 / -	2	Partial capture
09-16 22:29	80m	-22 / -18	DO9BAU	0 / -2	17	✓ Full exchange observed
09-16 22:26	80m	-24 / -11	HA7TM	+13 / -2	6	✓ Full exchange observed
09-16 22:26	80m	-24 / -15	SP9TBT	+6 / -1	7	✓ Full exchange observed
08-28 23:12	20m	- / -12	HP1RY	-8 / -	5	✓ Closing fragment
08-28 22:35	20m	- / -11	F5RRS	0 / -	4	✓ Closing fragment
08-28 22:33	20m	- / -15	VA3FF	-19 / -	5	Partial capture
08-28 22:30	20m	- / -11	F1PBZ	+5 / -	2	Partial capture
08-28 22:30	20m	- / -	F4JZW	-11 / -	2	Partial capture
08-28 22:28	20m	- / -7	YO4NF	-5 / -	3	✓ Closing fragment
08-28 22:22	20m	- / 0	V31DL	-11 / -	3	Partial capture
08-28 22:10	20m	- / -14	K4YT	-5 / -	2	✓ Closing fragment
08-26 14:16	20m	- / -17	F4DZF/P	-1 / -	2	Partial capture
08-26 14:11	20m	- / -4	M7VME	+6 / -	4	✓ Closing fragment
07-25 11:53	20m	- / -	F5RRS	-13 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
223245 -13 2496  SP9JZ DO9BAU R-18
212830 +12 2040  SP9JZ HA7TM KN07 (x3)

80m

UTC    dB Audio  Message
222945  +2 1368  SP9JZ UA4FKT LO23
222945  +6 2502  SP9JZ DO9BAU JO62 (x2)
223030 -24 1369  DO9BAU SP9JZ -01
223045  -3 2502  SP9JZ DO9BAU R-18
223100 -24 1369  DO9BAU SP9JZ -01
223115  -4 2502  SP9JZ DO9BAU R-18 (x2)
223200 -20 1369  DO9BAU SP9JZ RR73
223215  -1 2502  SP9JZ DO9BAU R-18 (x4)
223400 -19 2577  DO9BAU SP9JZ RR73
223415  +1 2502  SP9JZ DO9BAU 73

20m

UTC    dB Audio  Message
223315 -16 2280  SP9JZ VA3FF FN03 (x5)
223545  -1 2013  SP9JZ F5RRS JN36 (x4)
230315  -4  600  SP9JZ W1AW/2 +00
231215  -9 1575  SP9JZ HP1RY -12 (x5)

CW

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

Explore CW reception at SO8OO

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