OE5BTM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Austria Most frequent locator attributed to this token: JN68

Receiver-side FT8 activity involving OE5BTM, decoded by SO8OO in southeastern Poland. 443 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 39 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-07.

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 443 FT8 messages attributed to OE5BTM as the transmitting token by decoded message structure across 39 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (61%), followed by 40 m (22%) and 10 m (17%). Most decodes (58%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

443

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

40m · 97 20m · 272 10m · 74

First attributed message: 2026-06-06
Last attributed message: 2026-09-07 16:22 UTC

Observed FT8 message patterns

Attributed sample: 443 messages
Active dates: 39 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -21 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 177, moderate (-15 to -9 dB) 168, strong (≥ -8 dB) 98.

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 OE5BTM in decoded directed-looking exchanges:

F4FSY · France ×2 SV2CLJ · Greece ×2 OH2ZZ · Finland ×2 ON1DGN · Belgium ×2 EA3CU · Spain EA8AP · Canary Islands LZ4VR · Bulgaria OE5YCP · Austria PD2ARI · Netherlands PF7DKW · Netherlands SN4K · Poland 3A2MW · Monaco

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 OE5BTM

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: JN68 · 278 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 658 km (approx.)
Last such locator decoded: 2026-09-07 16:15 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	OE5BTM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-13 20:12	40m	- / -9	ON1DGN	-22 / -	2	✓ Closing fragment
09-13 20:08	40m	- / -	M8FQT	-6 / -	4	Partial capture
09-07 16:20	40m	-8 / -	DL5KBT	- / -2	2	Partial capture
09-07 16:19	40m	-7 / -	ON4AZM	- / -6	3	Partial capture
09-07 16:17	40m	- / -	DL5KBT	+1 / -	2	Partial capture
09-07 16:16	40m	-8 / -	F4ILW	- / -16	2	✓ Closing fragment
09-07 16:12	40m	- / -	HA9OA	+4 / -	2	Partial capture
09-07 16:12	40m	-16 / -	PC1K	-18 / -	3	✓ Closing observed
08-31 16:24	20m	- / -	TA2EE	+1 / -	8	Partial capture
08-31 16:13	40m	-16 / -7	I3LTT	-6 / +3	3	✓ Full exchange observed
08-31 08:14	40m	-14 / +1	DL2YDX	-6 / +8	4	Partial capture
08-31 08:11	40m	-12 / -	IW2FAC	- / +9	6	Partial capture
08-31 08:03	40m	- / -	IZ4AIF	-4 / -	3	✓ Closing fragment
08-31 07:56	40m	-13 / -	PD0PMF	-10 / +2	4	✓ Closing observed
08-30 09:00	10m	- / -17	EX8ABR	-10 / -	2	Partial capture
08-29 19:35	40m	-6 / -	PE2LRT	- / -	5	Partial capture
08-29 19:31	40m	-7 / -2	G4DBW	+1 / -1	5	✓ Full exchange observed
08-25 09:18	20m	- / -13	RA1QX	-5 / -	5	✓ Closing fragment
08-25 08:56	20m	- / -	F5IRQ	+2 / -	3	Partial capture
08-25 08:49	20m	- / +8	GJ0KYZ	+5 / -	2	✓ Closing fragment
08-23 09:21	20m	+4 / -9	F6BNX	-2 / -	5	✓ Closing observed
08-23 09:20	20m	0 / -	OH2ZZ	- / -4	3	✓ Closing fragment
08-23 09:17	20m	-3 / -17	3A2MW	-6 / -	6	Partial capture
08-22 09:19	20m	+4 / -	F6ARS	+8 / -3	4	✓ Full exchange observed
08-22 09:12	20m	-1 / -	PD4RJ	- / -	7	Partial capture
08-22 09:05	20m	+2 / -10	ON4AOI	-3 / -13	4	✓ Full exchange observed
08-22 08:48	20m	+1 / -	MW7RHR	- / -	5	Partial capture
08-21 15:52	10m	- / -	DO5HCS	-9 / -	2	Partial capture
08-21 15:36	10m	- / -	DN9AD	-12 / -	4	Partial capture
08-21 15:30	10m	- / -	DL8OAZ	-16 / -	6	Partial capture
08-21 10:15	10m	-2 / -	A71UN	- / -	3	Partial capture
08-20 15:47	10m	-16 / -	SV2CLJ	- / -6	3	✓ Closing fragment
08-17 08:56	20m	- / -	EW8DU	-13 / -	3	Partial capture
08-16 15:38	20m	- / -6	PD2WL	-9 / -	11	✓ Closing fragment
08-16 09:24	20m	-10 / -	CR5VP	- / -10	6	✓ Closing fragment
08-16 09:06	20m	0 / -	HB9SFL	-17 / -15	6	✓ Closing observed
08-16 08:57	20m	-14 / -	DG1RMY	- / -7	3	✓ Closing fragment
08-16 08:51	20m	-14 / -	DL8LTD	- / +1	4	✓ Closing fragment
08-15 15:34	20m	-6 / -	R9FDE/P	- / -	3	Partial capture
08-12 15:20	20m	-19 / -	IW1QBR	- / +8	3	✓ Closing fragment
08-12 15:17	20m	-10 / -	PD5MVH	- / -13	3	Partial capture
08-12 15:14	20m	-6 / -	LZ1ZF	- / -	4	Partial capture
08-12 15:11	20m	-6 / -	BV2NF	- / -	2	Partial capture
08-12 15:07	20m	-13 / -	UN7PNF	- / -	4	Partial capture
08-12 09:43	20m	-13 / +1	PA3FXT	-22 / +9	4	✓ Full exchange observed
08-11 19:22	20m	- / -	ON7DE	-19 / -	5	Partial capture
08-11 19:16	20m	-18 / -	BG7BMG	- / -	2	Partial capture
08-11 08:43	20m	-19 / -12	ON1DGN	-22 / -	3	✓ Closing observed
08-10 09:38	20m	-15 / -	EA8DNB	- / -12	3	✓ Closing fragment
08-08 07:46	20m	- / -	PD0PWH	-9 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
161645  -9  979  F4ILW OE5BTM RR73
161700  -1  901  OE5BTM DL5KBT JN58 (x2)
161915  -7  979  ON4AZM OE5BTM -06 (x3)
162045  -7  979  DL5KBT OE5BTM -02 (x2)
200800 -10  978  OE5BTM M8FQT IO93 (x4)
201200 +13  978  OE5BTM R5AV -13
201230 -21 1637  OE5BTM ON1DGN -09 (x2)

20m

UTC    dB Audio  Message
085630  +2  533  OE5BTM F5IRQ IN96 (x2)
091815  -8 1787  OE5BTM RA1QX KO99 (x5)
162415  +3  842  OE5BTM TA2EE KM69 (x8)

10m

UTC    dB Audio  Message
153600 -13 1444  OE5BTM DN9AD JO52 (x4)
154630  -7 1027  OE5BTM DK7UY JO44
154730  +2 1029  OE5BTM DO5HCS JO53 (x3)
155600 -17 1028  OE5BTM OZ5AGJ JO47
160215 -17 1030  CQ OE5BTM JN68 (x4)
090000 -12 1375  OE5BTM EX8ABR -17 (x2)

80m

UTC    dB Audio  Message
195845  +0 1403  OE5BTM IV3DSG JN66 (x8)

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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