9A3EMA — 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: JN65

Receiver-side FT8 activity involving 9A3EMA, decoded by SO8OO in southeastern Poland. 44 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-26.

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 44 FT8 messages attributed to 9A3EMA as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (41%), followed by 80 m (20%) and 40 m (18%). Most decodes (80%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (100%); the estimated median was +9 dB.

Overview

44
Messages attributed
9
UTC dates decoded
11
Active 15-min windows
+9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-26 19:25 UTC

Observed FT8 message patterns

Attributed sample
44 messages
Active dates
9 UTC dates
Estimated median S/N
+9 dB
Estimated 10th-90th percentile
+1 to +19 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 44.

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 9A3EMA in decoded directed-looking exchanges:

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 9A3EMA

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
JN65 · 29 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
821 km (approx.)
Last such locator decoded
2026-10-26 19:24 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 UTCBand9A3EMA S/NCounterpartCounterpart S/NMsgsCapture
10-26 19:26 160m - / - UA4FKT -9 / - 2 Partial capture
10-26 19:24 160m +2 / - S9R - / -14 3 ✓ Closing fragment
10-12 15:47 60m +4 / - H49A - / -8 6 ✓ Closing fragment
10-10 17:32 40m - / - DK7ZT +2 / - 3 Partial capture
10-10 17:31 40m +17 / -3 RD9FC -12 / -13 5 ✓ Full exchange observed
10-10 17:31 40m - / -2 OH3OJ 0 / - 2 Partial capture
10-10 17:29 40m +16 / - ZA/OG2T - / -8 2 Partial capture
09-18 17:01 80m +3 / - KH8WW - / - 3 Partial capture
09-17 20:41 160m +6 / - RI1FJZ - / -21 9 ✓ Closing fragment
09-03 23:31 160m +18 / - RI1FJL - / -19 6 ✓ Closing fragment
08-23 12:54 20m +16 / - RI1FJL - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
233415 +20 2906  RI1FJL 9A3EMA 73
204115 +14 1045  RI1FJZ 9A3EMA JN65 (x9)
192415  +3  656  S9R 9A3EMA JN65 (x3)
192600  -9  656  9A3EMA UA4FKT LO23 (x2)
60m
UTC    dB Audio  Message
154715  +1 2341  H49A 9A3EMA JN65 (x6)
40m
UTC    dB Audio  Message
172945 +14 1969  ZA/OG2T 9A3EMA JN65
173000 -10  396  9A3EMA R6DOB/M +02
173015 +18 1969  ZA/OG2T 9A3EMA R-08
173100  -3  639  9A3EMA OH3OJ -02
173130 +18 2589  RD9FC 9A3EMA JN65
173145 -11 2590  9A3EMA RD9FC -03
173200 +19 2589  RD9FC 9A3EMA R-13
173215 -12 2590  9A3EMA RD9FC RR73
173230 +15 2590  RD9FC 9A3EMA 73
173245  +4  918  9A3EMA OH3OJ -02
173245  +1 1906  9A3EMA DK7ZT +20 (x3)
80m
UTC    dB Audio  Message
170145  +0 2502  KH8WW 9A3EMA JN65 (x3)
20m
UTC    dB Audio  Message
125415 +18 2617  RI1FJL 9A3EMA JN65 (x3)

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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