WA3JBO — 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: United States Most frequent locator attributed to this token: EL98

Receiver-side FT8 activity involving WA3JBO, decoded by SO8OO in southeastern Poland. 16 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-11.

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 16 FT8 messages attributed to WA3JBO as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (88%), followed by 40 m (13%). In this small sample, the estimated median decoder S/N was -19 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-19 dB

Estimated median S/N

Bands

40m · 2 20m · 14

First attributed message: 2026-06-07
Last attributed message: 2026-09-11 00:11 UTC

Observed FT8 message patterns

Attributed sample: 16 messages
Active dates: 5 UTC dates
Estimated median S/N: -19 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 3, 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 WA3JBO in decoded directed-looking exchanges:

DJ5QV · Fed. Rep. of Germany PD5MVH · Netherlands W7LDE · United States W8OBX · United States 9A2L · Croatia CR7BRV · Portugal DC1KN · Fed. Rep. of Germany DK8HC · Fed. Rep. of Germany UX1VT · Ukraine EC5M · Spain GW8DX · Wales LZ1KU · Bulgaria

Most frequent locator attributed to WA3JBO

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: EL98 · 7 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,464 km (approx.)
Last such locator decoded: 2026-08-25 00:49 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	WA3JBO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-06 00:31	80m	- / -	EA1IOK	0 / -	5	Partial capture
10-06 00:29	80m	- / -15	EC5M	+1 / -	3	✓ Closing fragment
09-24 00:19	80m	- / -5	GW8DX	+7 / -	2	✓ Closing fragment
09-24 00:09	80m	- / -18	DK7ZT	-2 / -	2	Partial capture
09-24 00:03	80m	- / -12	LZ1KU	+6 / -	2	Partial capture
09-12 00:18	40m	- / -	UX1VT	-12 / -	2	✓ Closing fragment
09-11 00:10	40m	-22 / -	EA3HMM	+6 / -2	4	Partial capture
09-11 00:09	40m	-24 / -9	CR7BRV	-10 / -9	3	✓ Full exchange observed
09-09 00:46	80m	- / -19	PI4DX	+6 / -	2	Partial capture
08-30 00:16	40m	- / -2	DC1KN	-16 / -	2	✓ Closing fragment
08-25 00:49	20m	-16 / -	ZP5DVD	- / -	2	Partial capture
08-25 00:47	20m	-18 / -	PD5MVH	- / -12	3	✓ Closing fragment
08-25 00:44	20m	-21 / -	W7LDE	- / -6	2	✓ Closing fragment
08-21 22:58	20m	-19 / -13	DJ5QV	+7 / -	3	✓ Closing observed
07-28 00:06	40m	- / -13	9A2L	-14 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
000330  +6 1592  WA3JBO LZ1KU -12 (x3)
000900  -1 1148  WA3JBO DK7ZT -18 (x2)
001900  +6 2658  WA3JBO GW8DX -05 (x2)
002930  -1  754  WA3JBO EC5M -15 (x3)
003100  -2  559  WA3JBO EA1IOK IN62 (x5)

40m

UTC    dB Audio  Message
000615 -13 1418  WA3JBO 9A2L -13 (x2)
235815 -12  598  WA3JBO DK8HC 73
001600 -16 1577  WA3JBO DC1KN -02 (x2)
000930  -9  862  WA3JBO CR7BRV -09
000945 -24 1679  CR7BRV WA3JBO R-09
001000 -12  862  WA3JBO CR7BRV RR73
001030  +4  318  WA3JBO EA3HMM JN00 (x3)
001145 -22 1679  EA3HMM WA3JBO -02
001800 -12 1679  WA3JBO UX1VT KN68 (x2)
002300 -20 1578  WA3JBO UR4QWW KN77

20m

UTC    dB Audio  Message
225815 -19 1715  DJ5QV WA3JBO EL98
225830  +5 2842  WA3JBO DJ5QV -13 (x2)
214200 -23 1717  DH0YAH WA3JBO EL98
004400 -22 1718  W7LDE WA3JBO R-06 (x2)
004530 -17 1718  W8OBX WA3JBO RR73
004730 -18 1718  PD5MVH WA3JBO EL98 (x3)
004900 -18 1718  ZP5DVD WA3JBO EL98 (x2)

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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