9A5CRZ — 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: Croatia Most frequent locator attributed to this token: JN75

Receiver-side FT8 activity involving 9A5CRZ, decoded by SO8OO in southeastern Poland. 63 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-22.

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 63 FT8 messages attributed to 9A5CRZ as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (78%), followed by 40 m (22%). Several six-hour UTC windows tied for the largest share (65%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

40m · 14 20m · 49

First attributed message: 2026-06-08
Last attributed message: 2026-09-22 20:07 UTC

Observed FT8 message patterns

Attributed sample: 63 messages
Active dates: 7 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -20 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 28, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 11.

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 9A5CRZ in decoded directed-looking exchanges:

CU2AP · Azores DN9ZZ · Fed. Rep. of Germany RC9WC · Asiatic Russia UN7AM · Kazakhstan 9K2GR · Kuwait EA3HKA · Spain ES2AJ · Estonia EC3A · Spain EI8GS · Ireland F5RMK · France G8KHF · England HB9TOC · Switzerland

Most frequent locator attributed to 9A5CRZ

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: JN75 · 50 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 708 km (approx.)
Last such locator decoded: 2026-09-22 20:07 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	9A5CRZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 11:24	10m	- / -8	RC9WC	-14 / -	2	✓ Closing fragment
09-28 23:36	40m	- / -14	EC3A	-10 / -	2	✓ Closing fragment
09-28 23:34	40m	- / -19	G8KHF	-6 / -	2	✓ Closing fragment
09-28 19:03	40m	- / -	F6BHK	-1 / -	2	Partial capture
09-22 20:05	40m	-11 / -	RT6Z	- / -	4	Partial capture
09-22 19:23	40m	-19 / -21	EI8GS	+8 / -20	10	✓ Full exchange observed
09-22 19:19	40m	-15 / -	RN3YN	- / -	2	Partial capture
09-22 19:17	40m	-24 / -18	YO4GIY	-2 / -	3	✓ Closing observed
08-28 10:35	10m	- / -21	CU2AP	-14 / -	2	✓ Closing fragment
08-20 21:24	20m	- / -23	EA8UP	+8 / -	6	Partial capture
08-20 21:01	20m	- / -16	9K2GR	0 / -	2	✓ Closing fragment
08-20 09:51	20m	-10 / +2	MM0TBH	-3 / -	7	Partial capture
08-19 13:55	20m	- / -2	EA3HKA	-15 / -	3	Partial capture
08-13 23:03	40m	- / -24	F5RMK	-14 / -	2	✓ Closing fragment
08-13 22:23	40m	- / -18	R4ZZ	-11 / -	2	Partial capture
08-13 21:02	40m	- / -11	HB9TOC	-5 / -	2	✓ Closing fragment
08-13 20:45	40m	- / -16	5P1KZX	-10 / -	2	Partial capture
08-13 20:32	40m	- / -2	Z62NS	-8 / -	9	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
103530 -14 1163  9A5CRZ CU2AP -21 (x2)
213315 -19 1105  9A5CRZ DN9ZZ 73
095315 -16 1245  9A5CRZ UN7AM RR73
112445 -16 1719  9A5CRZ RC9WC -08 (x2)

40m

UTC    dB Audio  Message
192815 -17 2291  EI8GS 9A5CRZ R-20
192830 +10 2331  9A5CRZ EI8GS -21
192845 -17 2291  EI8GS 9A5CRZ R-14
192930  +6 2332  9A5CRZ EI8GS RR73
200530  -5 2968  RT6Z 9A5CRZ JN75 (x4)
213400  -5 1683  9A5CRZ F1HFP -14
190315  +4 2984  9A5CRZ F6BHK JN24 (x2)
233430  -8  880  9A5CRZ G8KHF -19 (x2)
233630  -8 1603  9A5CRZ EC3A -14 (x2)

20m

UTC    dB Audio  Message
095100 -11 2542  MM0TBH 9A5CRZ JN75
095115  -1 2091  9A5CRZ MM0TBH +02
095130  -9 2542  MM0TBH 9A5CRZ JN75
095145  -7 2091  9A5CRZ MM0TBH +02 (x4)
210130  -3 2131  9A5CRZ 9K2GR -16 (x2)
212400  +8 1231  9A5CRZ EA8UP -23 (x6)

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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