TI5RR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Costa Rica Most frequent locator attributed to this token: EK70

Receiver-side FT8 activity involving TI5RR, decoded by SO8OO in southeastern Poland. 4,151 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 57 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-17.

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 4,151 FT8 messages attributed to TI5RR as the transmitting token by decoded message structure across 57 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%), followed by 40 m (0%) and 80 m (0%). Most decodes (78%) fell within the six-hour window 00:00-06:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

4,151

Messages attributed

UTC dates decoded

416

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 1 40m · 2 20m · 4,148

First attributed message: 2026-06-07
Last attributed message: 2026-09-17 01:50 UTC

Observed FT8 message patterns

Attributed sample: 4,151 messages
Active dates: 57 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -16 to -4.2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 534, moderate (-15 to -9 dB) 2,186, strong (≥ -8 dB) 1,431.

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 TI5RR in decoded directed-looking exchanges:

DL2JB · Fed. Rep. of Germany ×4 IK4LZH · Italy ×3 DK4OX · Fed. Rep. of Germany ×2 DL3VZL · Fed. Rep. of Germany ×2 E70NA · Bosnia-Herzegovina ×2 F4HSB · France ×2 F4LHR/P · France ×2 F4MHR · France ×2 F8TRT · France ×2 G1KIK · England ×2 HA5BP · Hungary ×2 IK2LRF · Italy ×2

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 TI5RR

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: EK70 · 1,405 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 10,284 km (approx.)
Last such locator decoded: 2026-09-17 01:50 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	TI5RR S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 05:45	40m	- / -18	G0OYQ	-9 / -	3	Partial capture
09-18 05:40	40m	- / -13	IZ7NMD	-1 / -	3	✓ Closing fragment
09-18 05:39	40m	- / -	LA3BO	-2 / -	2	Partial capture
09-18 05:38	40m	- / -13	IK5PWQ	-2 / -	2	✓ Closing fragment
09-18 05:36	40m	- / -	UF2F	-7 / -	6	Partial capture
09-18 05:35	40m	- / -14	DL3RL	+12 / -	3	✓ Closing fragment
09-18 05:29	40m	- / -	SV7BAY	-3 / -	3	Partial capture
09-18 05:27	40m	- / -	EI5JL	-8 / -	2	Partial capture
09-18 05:27	40m	- / -	I0XVZ	-6 / -	3	Partial capture
09-18 05:26	40m	- / -	YL2KF	-2 / -	2	Partial capture
09-18 05:24	40m	- / -16	IZ8DBJ	-12 / -	4	Partial capture
09-18 05:22	40m	- / -	9A60CBM	-4 / -	3	Partial capture
09-18 05:22	40m	- / -	F6DZU	0 / -	5	Partial capture
09-18 05:17	40m	- / -	DL5ALF	-2 / -	2	Partial capture
09-18 05:17	40m	- / -16	E70N	-15 / -	5	Partial capture
09-18 05:16	40m	- / -14	PA4PA	+9 / -	3	✓ Closing fragment
09-18 05:16	40m	- / -12	GM6URC	-16 / -	2	Partial capture
09-18 05:12	40m	- / -13	IN3WZS	+3 / -	3	✓ Closing fragment
09-18 05:07	40m	- / -14	DL3MIB	+14 / -	3	✓ Closing fragment
09-18 05:07	40m	- / -15	SV1EKI	-6 / -	6	✓ Closing fragment
09-17 02:23	40m	- / -	UA6LIK	+5 / -	3	Partial capture
09-17 02:07	40m	- / -8	KK4JO	-6 / -	2	✓ Closing fragment
09-16 00:37	40m	- / -18	GM6URC	-22 / -	2	Partial capture
09-11 19:46	160m	- / -	SP2LLP	+4 / -	7	Partial capture
09-08 03:51	40m	- / -	UX1VT	+4 / -	2	Partial capture
09-08 03:49	40m	- / -11	EH3PDA	-12 / -	2	Partial capture
09-08 03:42	40m	- / -16	RA6ABC	+5 / -	3	✓ Closing fragment
09-08 03:36	40m	- / -	RA6ABC	+2 / -	2	Partial capture
09-08 03:25	40m	- / -	UT2AU	+7 / -	2	Partial capture
09-08 03:21	40m	- / -	UR5LAK	-4 / -	2	Partial capture
09-08 03:13	40m	- / -	UT5ZC	+7 / -	7	Partial capture
09-04 05:07	40m	- / -22	SP7VCL	-2 / -	3	Partial capture
09-03 05:49	40m	- / -	YL2CI	-1 / -	2	Partial capture
09-02 03:33	40m	- / -	F5OYA/P	-13 / -	8	Partial capture
09-02 03:19	40m	- / -	F5OYA/P	-14 / -	6	Partial capture
08-31 08:58	20m	- / -13	M7ISX	-8 / -	3	✓ Closing fragment
08-31 08:08	20m	- / -	SV2SKU	-5 / -	2	Partial capture
08-31 07:51	20m	- / -14	F6HUK	+1 / -	4	Partial capture
08-31 07:48	20m	- / -10	DF1WR	-6 / -	2	✓ Closing fragment
08-31 07:36	20m	- / -	DH5NC	0 / -	2	Partial capture
08-31 07:03	20m	- / -	PD1EN	-10 / -	3	Partial capture
08-31 06:59	20m	- / -	DL9KV	-7 / -	4	Partial capture
08-31 06:39	20m	- / -	DJ2QV	-2 / -	2	Partial capture
08-31 06:30	20m	- / -10	IK4LZH	-5 / -	3	✓ Closing fragment
08-30 05:31	20m	-14 / -	TI1T	- / -	4	Partial capture
08-30 05:28	20m	-11 / -	SP9RA	- / -15	2	✓ Closing fragment
08-30 05:25	20m	-10 / -	9A1MM	- / -12	2	✓ Closing fragment
08-30 04:53	20m	- / -	RU3GF	+6 / -	2	Partial capture
08-29 07:01	20m	-9 / -5	DL9NN	-8 / -15	7	Partial capture
08-29 06:50	20m	- / 0	YO2AMU	-1 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
053815  -4 2334  TI5RR UF2F JO94
053815  +1 2174  TI5RR IK5PWQ R-13 (x2)
053915  -8 2333  TI5RR UF2F JO94 (x2)
053945  +1 2861  TI5RR LA3BO JO59
054015  -8 2333  TI5RR UF2F JO94
054015  -5 2861  TI5RR LA3BO JO59
054015  -4 1139  TI5RR IZ7NMD JN81
054015  -8  688  TI5RR G0OYQ IO93
054045  -2 1139  TI5RR IZ7NMD R-13 (x2)
054545  -5  688  TI5RR G0OYQ R-18 (x3)

160m

UTC    dB Audio  Message
194630  +5  815  TI5RR SP2LLP JO94 (x7)

80m

UTC    dB Audio  Message
192445  +3 1001  TI5RR DO2GGH -16 (x3)
205230  +2 1046  TI5RR EA5RR IM98 (x4)
020545 -12  829  KO6HNZ TI5RR R-20
034000 -21 1002  TI5RR KA2H FN30 (x2)
031600  -8  752  TI5RR EW4DX KO23
031630  -6 2106  TI5RR RA3DA KO95
062730 -16  832  TI5RR OZ6MM JO65

20m

UTC    dB Audio  Message
074845  -6 1134  TI5RR DF1WR R-10 (x2)
075115  -1  907  TI5RR F6HUK -14 (x4)
075715  +4  753  TI5RR F4JZW JN08
075845  +2  423  TI5RR F5SZB IN95
080845  -4 1300  TI5RR SV2SKU KN10 (x2)
085845 -11  906  TI5RR M7ISX JO01 (x3)
093715 -12 2045  TI5RR GB0BCC JO02
130345  +2 2718  TI5RR R6DLW KN84

10m

UTC    dB Audio  Message
070200 -19 1650  TI5RR PD2V -16
221400 -18 1410  TI5RR IK5IVP JN53 (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.

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