N3GJB — 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: FM29

Receiver-side FT8 activity involving N3GJB, decoded by SO8OO in southeastern Poland. 5 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-06-15.

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 5 FT8 messages attributed to N3GJB as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -10 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

20m · 5

First attributed message: 2026-06-09
Last attributed message: 2026-06-15 23:59 UTC

Observed FT8 message patterns

Attributed sample: 5 messages
Active dates: 3 UTC dates
Estimated median S/N: -10 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, 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 N3GJB in decoded directed-looking exchanges:

F5NKX · France PA2EW · Netherlands F4DIA · France K1DCT · United States K4CAE · United States KP4PW · United States N3RIK · United States WA4CHJ · United States

Most frequent locator attributed to N3GJB

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: FM29 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,189 km (approx.)
Last such locator decoded: 2026-06-15 23:53 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	N3GJB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 01:02	40m	- / -4	K4CAE	-18 / -	2	✓ Closing fragment
09-22 23:54	40m	- / -12	K1DCT	-16 / -	2	✓ Closing fragment
09-19 01:05	40m	- / -	EB1LA	-8 / -	3	Partial capture
08-27 01:41	40m	- / -	WA4MB	-10 / -	2	Partial capture
08-27 01:30	40m	- / -	F1IQH	0 / -	2	Partial capture
08-22 01:06	40m	- / -	DL1UDO	-10 / -	3	Partial capture
08-21 01:45	40m	- / -7	F4DIA	-9 / -	3	✓ Closing fragment
08-20 01:13	40m	- / -	EA5HM	-5 / -	4	Partial capture
08-20 01:02	40m	- / -24	CT3MD	-5 / -	5	Partial capture
08-19 00:56	80m	- / +3	WA4CHJ	-24 / -	2	✓ Closing fragment
08-19 00:49	80m	- / -	F8NHF	-3 / -	3	Partial capture
08-19 00:00	40m	- / -14	F1PBZ	-11 / -	3	Partial capture
08-12 00:56	20m	- / -	IK4LZH	-5 / -	4	Partial capture
08-11 23:31	20m	- / -	DL1R	+1 / -	8	Partial capture
08-11 00:42	20m	- / +5	UN0GY	-8 / -	4	Partial capture
08-02 20:15	20m	- / -19	PA2EW	+3 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
013000  -1 1281  N3GJB F1IQH JN27 (x2)
014130 -10 2382  N3GJB WA4MB EL95 (x2)
004215 -11  610  N3GJB N0WUD FN31
000700 -15 1070  N3GJB DL3MIB JN57
021130 -21 1512  N3GJB N3RIK 73
010545 -11 1470  N3GJB EB1LA IN73 (x3)
235415 -17 1439  N3GJB K1DCT -12 (x2)
012630  -9 2639  N3GJB KP4PW RR73
010200 -18 1921  N3GJB K4CAE -04 (x2)

20m

UTC    dB Audio  Message
233145  +1 2673  N3GJB DL1R JN58 (x7)
005545  -3 2774  N3GJB F1PBZ -12
005615  -6  463  N3GJB IK4LZH JN54 (x4)
202200 -17 1073  N3GJB MW7AHM IO81
203215 -18 1716  N3GJB F5NKX 73
011545 -21 1774  N3GJB 7Z1DM -14

80m

UTC    dB Audio  Message
004900  +1 1680  N3GJB F8NHF JO10 (x3)
005600 -24 1107  N3GJB WA4CHJ R+03 (x2)

CW

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

Explore CW reception at SO8OO

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