F1JBT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN17

Receiver-side FT8 activity involving F1JBT, decoded by SO8OO in southeastern Poland. 160 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-30.

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 160 FT8 messages attributed to F1JBT as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (50%), followed by 20 m (42%) and 40 m (8%). Most decodes (50%) fell within the six-hour window 02:00-08:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

160

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 13 20m · 67 10m · 80

First attributed message: 2026-06-07
Last attributed message: 2026-08-30 12:17 UTC

Observed FT8 message patterns

Attributed sample: 160 messages
Active dates: 14 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -20 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 45, moderate (-15 to -9 dB) 69, strong (≥ -8 dB) 46.

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 F1JBT in decoded directed-looking exchanges:

CU2AP · Azores GM0HTT · Scotland OZ1PDE · Denmark SL5BJV/R · Sweden SP8WB · Poland A71UN · Qatar KE4QAY · United States KF8EBV · United States MW7RHR · Wales N4AVJ · United States NJ2RQ · United States R2EC · European Russia

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 F1JBT

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: JN17 · 91 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,401 km (approx.)
Last such locator decoded: 2026-08-30 12:17 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	F1JBT S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-28 09:32	10m	- / -13	CU2AP	-20 / -	2	✓ Closing fragment
08-22 08:59	10m	-11 / -23	OZ1PDE	-16 / -16	8	✓ Full exchange observed
08-22 08:51	10m	-5 / -	GM0HTT	- / +2	3	✓ Closing fragment
07-31 15:00	20m	-8 / -	MW7RHR	- / 0	3	✓ Closing fragment
07-30 13:31	20m	- / -	RC4AF	-2 / -	2	✓ Closing fragment
07-27 13:49	10m	-22 / -	ZS6KVZ	- / -9	2	Partial capture
07-23 08:11	10m	-10 / -	TA7D	- / -	3	Partial capture
07-20 15:45	40m	- / -	IK4LZH	-9 / -	3	Partial capture
07-19 01:24	40m	- / -	9A4ZM	-13 / -	2	Partial capture
07-19 01:17	40m	- / -16	PC2J	-11 / -	6	Partial capture
07-19 01:11	40m	- / -	F5PBG	-20 / -	2	Partial capture
07-19 01:08	40m	- / -	LZ3CB	-12 / -	3	Partial capture
07-19 01:00	40m	- / -	9A4ZM	-3 / -	3	Partial capture
07-19 00:55	40m	- / -	PC2J	-6 / -	5	Partial capture
07-18 04:49	40m	- / -	F5RRS	-18 / -	3	Partial capture
07-18 04:48	40m	- / -11	YO6LM	-3 / -	2	Partial capture
07-13 14:53	40m	- / -	DL6EL	-19 / -	3	Partial capture
07-09 15:27	40m	- / -	SP9UPH	-2 / -	6	Partial capture
06-25 03:02	20m	-11 / -7	R2EC	-6 / -1	4	✓ Full exchange observed
06-25 02:56	20m	-8 / -	KA9WYK	- / -6	2	Partial capture
06-25 02:55	20m	-15 / -	KF8EBV	- / -12	2	✓ Closing fragment
06-25 02:49	20m	-18 / -	NJ2RQ	- / -11	6	✓ Closing fragment
06-25 02:45	20m	-15 / -6	A71UN	-14 / -4	6	✓ Full exchange observed
06-25 02:42	20m	-16 / -	TA4KO	- / -8	2	✓ Closing fragment
06-24 12:56	10m	-14 / -	<...>	- / +1	3	Partial capture
06-24 03:36	20m	-22 / -	SP2EUI	- / -13	2	✓ Closing fragment
06-24 03:32	20m	- / -	R7MP	-14 / -	2	Partial capture
06-24 03:24	20m	- / -13	W3FOX	-12 / -	2	Partial capture
06-24 03:19	20m	-20 / -	RW3DDZ	- / -	2	Partial capture
06-24 02:56	20m	-14 / -	KE4QAY	- / -15	2	✓ Closing fragment
06-24 02:54	20m	- / -8	W4WIN	-8 / -	2	✓ Closing fragment
06-24 02:53	20m	- / -	RX3ASQ	-16 / -	2	Partial capture
06-24 02:52	20m	-10 / -	R9JDA	- / -10	2	✓ Closing fragment
06-24 02:51	20m	- / -	EA1IOK	-5 / -	4	Partial capture
06-24 02:12	20m	- / -11	VE3PFW	-10 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
085100  -3 2547  GM0HTT F1JBT JN17 (x3)
085245 -21 3168  SL5BJV/R F1JBT RR73
085930 -13 1125  OZ1PDE F1JBT JN17
085945 -15 1125  F1JBT OZ1PDE -23
090000 -10 1125  OZ1PDE F1JBT R-16
090015 -16 1125  F1JBT OZ1PDE -23
090030 -12 1126  OZ1PDE F1JBT R-22
090045 -17 1125  F1JBT OZ1PDE -23 (x2)
090130  -9 1125  OZ1PDE F1JBT 73
093200 -20 1739  F1JBT CU2AP -13 (x2)
121730 -23 1375  OM7AG F1JBT JN17

20m

UTC    dB Audio  Message
025945 -23 1653  CQ F1JBT JN17 (x3)
030245 -10 2536  F1JBT R2EC -07
030300  -8 2537  R2EC F1JBT R-01
030315  -1 2535  F1JBT R2EC RR73
030330 -14 2537  R2EC F1JBT 73
030400 -14 2537  CQ F1JBT JN17 (x2)
132645 -19 1572  F1JBT PA2PS +11
133100  -3  570  F1JBT RC4AF RR73 (x2)
150045  -9  988  MW7RHR F1JBT JN17 (x3)

40m

UTC    dB Audio  Message
011745 -11  787  F1JBT PC2J JO22 (x4)
012045 -17 1273  LW6DLS F1JBT JN17
012145 -13  786  F1JBT PC2J R-16
012145 -15  969  CQ F1JBT JN17                         a1
012200  -8 2553  F1JBT IQ4JO JN63
012315 -13 2429  CX4BAN F1JBT R-14
012400 -13 2426  F1JBT 9A4ZM JN86
012415  -8  398  CQ F1JBT JN17                         a1
012430 -13 2426  F1JBT 9A4ZM JN86
154545 -10  438  F1JBT IK4LZH JN54 (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.

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