G4JBA — 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: England Most frequent locator attributed to this token: IO90

Receiver-side FT8 activity involving G4JBA, decoded by SO8OO in southeastern Poland. 72 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-29 and 2026-11-04.

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 72 FT8 messages attributed to G4JBA as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (40%), followed by 40 m (26%) and 160 m (24%). Several six-hour UTC windows tied for the largest share (97%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

160m · 17 80m · 4 60m · 29 40m · 19 20m · 3

First attributed message: 2026-07-29
Last attributed message: 2026-11-04 23:47 UTC

Observed FT8 message patterns

Attributed sample: 72 messages
Active dates: 7 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -20 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 36.

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 G4JBA in decoded directed-looking exchanges:

ON1BH · Belgium ×2 4O7CC · Montenegro 9A4ZM · Croatia C31CT · Andorra CT1CHT · Portugal DB8WK · Fed. Rep. of Germany DK7QJ · Fed. Rep. of Germany DK7TX · Fed. Rep. of Germany DK9WI · Fed. Rep. of Germany DL1HDL · Fed. Rep. of Germany DO3VE · Fed. Rep. of Germany EC4TR · Spain

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 G4JBA

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: IO90 · 29 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,616 km (approx.)
Last such locator decoded: 2026-11-04 23:35 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	G4JBA S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 23:45	160m	-17 / -4	DK7QJ	-12 / -16	7	✓ Full exchange observed
11-04 23:43	160m	-21 / -12	9A4ZM	0 / -16	5	✓ Full exchange observed
11-04 23:42	160m	- / -19	SP5AA	+9 / -	3	✓ Closing fragment
11-04 23:35	160m	-22 / +9	DK9WI	0 / 0	5	✓ Full exchange observed
11-04 23:29	160m	-16 / -10	EC4TR	-10 / -	3	✓ Closing observed
11-04 23:24	160m	-16 / -12	DL1HDL	+3 / -15	6	✓ Full exchange observed
10-27 22:03	160m	- / -12	C31CT	-17 / -	2	✓ Closing fragment
10-27 22:00	160m	-18 / -	GM4JKZ	- / -	2	✓ Closing fragment
10-27 21:36	160m	-18 / -21	4O7CC	+5 / -	5	✓ Closing observed
10-27 21:34	160m	-21 / -	DB8WK	-10 / +5	3	✓ Closing observed
10-27 21:27	160m	- / -4	DO3VE	-12 / -	5	✓ Closing fragment
10-27 20:49	160m	- / -19	LX1JX	+2 / -	3	✓ Closing fragment
10-27 20:44	160m	- / -20	SM6CWP	-10 / -	3	✓ Closing fragment
10-27 20:43	160m	- / -10	DK7TX	-1 / -	3	✓ Closing fragment
10-26 22:43	60m	+1 / -18	IK2EST	-8 / -18	5	✓ Full exchange observed
10-26 22:39	60m	-8 / -14	ON1BH	-2 / -21	11	✓ Full exchange observed
10-26 22:38	60m	-8 / -	EA5FQ	- / -10	2	✓ Closing fragment
10-26 22:37	60m	-12 / -	DL7GP	- / -20	2	✓ Closing fragment
10-26 22:35	60m	-11 / -10	YO9HP	-10 / -	3	✓ Closing observed
10-26 22:33	60m	-4 / -14	OH6FSO	-6 / -21	7	✓ Full exchange observed
10-26 22:30	60m	-12 / -	OM1AN	- / -4	2	✓ Closing fragment
10-26 22:26	60m	+1 / -	EA4GRZ	- / 0	4	✓ Closing fragment
10-26 22:25	60m	+1 / -13	F5RMK	-10 / -	7	Partial capture
10-26 22:23	60m	-6 / -13	EA1MX	-18 / -	4	✓ Closing observed
10-07 22:02	40m	-10 / -	AM5CV	- / -	2	Partial capture
10-07 21:57	40m	+2 / -	OH3DJP	- / -10	2	✓ Closing fragment
10-07 21:51	40m	0 / -	VJ6X	- / -	5	Partial capture
10-07 21:49	40m	-5 / -	9H1SR	- / -	3	Partial capture
10-07 21:34	160m	- / -	OM3SX	+18 / -	2	Partial capture
10-07 21:15	80m	-6 / -14	DO9BAU	+12 / -3	5	✓ Full exchange observed
10-07 21:14	80m	-10 / -8	9A5E	+4 / -	4	✓ Closing observed
10-06 21:48	40m	-9 / -14	J48S	-8 / -	3	✓ Closing observed
10-06 21:45	40m	-10 / -	CN8NS	- / -	3	Partial capture
10-06 21:34	40m	- / -	IU8RFW	-18 / -	2	✓ Closing fragment
08-29 10:12	20m	-10 / 0	EA1FMJ	-6 / -1	4	✓ Full exchange observed
08-29 09:58	20m	- / -15	YO9PH	-8 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
234215  +9 2052  G4JBA SP5AA -19 (x3)
234345  +2 2048  G4JBA 9A4ZM JN86 (x2)
234430 -21 2049  9A4ZM G4JBA -16
234445  +1 2048  G4JBA 9A4ZM R-12 (x2)
234545 -14 2049  G4JBA DK7QJ JO41 (x3)
234700 -17 2050  DK7QJ G4JBA -16
234715 -13 2049  G4JBA DK7QJ R-04 (x3)

60m

UTC    dB Audio  Message
223930  -6  889  ON1BH G4JBA R-21
223945  -8 1815  G4JBA ON1BH RR73
224000  -6  889  ON1BH G4JBA R-21 (x4)
224145  -9 1815  G4JBA ON1BH RR73 (x4)
224315  +0  942  IK2EST G4JBA IO90
224330  -9  943  G4JBA IK2EST -18
224345  +0  942  IK2EST G4JBA R-18
224400  -8  942  G4JBA IK2EST RR73
224415  +4  942  IK2EST G4JBA 73

40m

UTC    dB Audio  Message
214915  -9  722  J48S G4JBA 73
214915  -2 2390  9H1SR G4JBA IO90 (x3)
215145  -3  490  VJ6X G4JBA IO90 (x5)
215730  +2  514  OH3DJP G4JBA R-10 (x2)
220000  +6  515  SN4K G4JBA RR73
220215 -11 1557  AM5CV G4JBA IO90 (x2)
220400  +4  580  SP9JMZ G4JBA IO90

80m

UTC    dB Audio  Message
211400 -10 2134  9A5E G4JBA IO90
211415  +2 2134  G4JBA 9A5E -08 (x2)
211500 -10 2134  9A5E G4JBA 73
211515 +14 2602  G4JBA DO9BAU JO62
211530  -9 2602  DO9BAU G4JBA -03
211545 +12 2602  G4JBA DO9BAU R-14
211600  -4 2602  DO9BAU G4JBA RR73
211615 +11 2602  G4JBA DO9BAU 73

20m

UTC    dB Audio  Message
095700  -6 1714  G4JBA ZA/IK3BNO -11
095800 -11 2019  G4JBA YO9PH -15 (x2)
101200  -6  384  G4JBA EA1FMJ +00
101215 -10  385  EA1FMJ G4JBA R-01
101230  -5  384  G4JBA EA1FMJ RR73
101245 -11  385  EA1FMJ G4JBA 73

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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