9A3CHG — 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: JN83

Receiver-side FT8 activity involving 9A3CHG, decoded by SO8OO in southeastern Poland. 21 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-23 and 2026-10-17.

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 21 FT8 messages attributed to 9A3CHG as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (67%), followed by 40 m (33%). Several six-hour UTC windows tied for the largest share (67%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (62%); the estimated median was -5 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 14 40m · 7

First attributed message: 2026-09-23
Last attributed message: 2026-10-17 00:46 UTC

Observed FT8 message patterns

Attributed sample: 21 messages
Active dates: 4 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -15 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 13.

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 9A3CHG in decoded directed-looking exchanges:

DK7ZT · Fed. Rep. of Germany IZ8PPI · Italy ON3RV · Belgium ER5DX · Moldova R2EA/P · European Russia SP3JHZ · Poland SQ9BC · Poland Z62NS · Republic of Kosovo

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 9A3CHG

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: JN83 · 6 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 803 km (approx.)
Last such locator decoded: 2026-10-17 00:46 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	9A3CHG S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-16 21:39	80m	+6 / -5	SP3JHZ	+2 / -7	6	✓ Full exchange observed
10-16 21:38	80m	+9 / -	R2EA/P	- / -9	2	✓ Closing fragment
10-16 21:37	80m	- / -	SP6FME	+12 / -	2	Partial capture
10-16 21:36	80m	+8 / -8	ER5DX	+1 / +9	6	✓ Full exchange observed
09-24 21:03	80m	- / -16	DK7ZT	+7 / -	5	Partial capture
09-24 21:02	80m	-15 / -11	SQ9BC	+1 / -2	4	✓ Full exchange observed
09-24 20:58	80m	- / -6	Z62NS	0 / -	2	✓ Closing fragment
09-23 12:58	40m	- / -	PE1NPS	-14 / -	4	Partial capture
09-23 12:57	40m	-10 / -	IZ8PPI	- / -10	2	✓ Closing fragment
09-23 12:55	40m	-6 / -1	DK7ZT	-11 / -10	5	✓ Full exchange observed
09-23 12:55	40m	-10 / -	ON3RV	- / -12	2	✓ Closing fragment
09-23 12:52	40m	- / +8	SN100PKP	-9 / -	2	Partial capture
09-23 12:41	40m	- / -4	IK4RVY	-20 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
213645  +5 1541  ER5DX 9A3CHG R+08
213700  +0 2784  9A3CHG ER5DX RR73
213715 +12 1541  ER5DX 9A3CHG 73
213730 +11 1541  9A3CHG SP6FME JO90 (x2)
213815 +10 1541  R2EA/P 9A3CHG -09 (x2)
213900  +2 2501  9A3CHG SP3JHZ JO71 (x2)
213945  +2 2426  SP3JHZ 9A3CHG -07
214000  +4 2500  9A3CHG SP3JHZ R-05
214015 +10 2426  SP3JHZ 9A3CHG RR73
214030  +4 2501  9A3CHG SP3JHZ RR73
214200  +0 2426  WK1O 9A3CHG JN83
004600  +5 2903  LU8ENU 9A3CHG JN83

40m

UTC    dB Audio  Message
125300 -10 1425  9A3CHG SN100PKP +08
125515  -8  925  ON3RV 9A3CHG 73
125530 -11 1907  9A3CHG DK7ZT -01
125530  -1  920  9A3CHG 9A4ZM JN86
125545 -12  925  ON3RV 9A3CHG R-12
125600 -10 1907  9A3CHG DK7ZT -01
125615  -7  925  DK7ZT 9A3CHG R-10
125630 -11 1906  9A3CHG DK7ZT RR73
125645  -5  924  DK7ZT 9A3CHG 73
125715 -10  925  IZ8PPI 9A3CHG R-10 (x2)
125800 -14 2318  9A3CHG PE1NPS JO22 (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.

CW

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

Explore CW reception at SO8OO

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