TF8YA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Iceland Most frequent locator attributed to this token: HP84

Receiver-side FT8 activity involving TF8YA, decoded by SO8OO in southeastern Poland. 9 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-12 and 2026-08-24.

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 9 FT8 messages attributed to TF8YA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (56%), followed by 80 m (33%) and 40 m (11%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

80m · 3 40m · 1 20m · 5

First attributed message: 2026-07-12
Last attributed message: 2026-08-24 23:17 UTC

Observed FT8 message patterns

Attributed sample: 9 messages
Active dates: 2 UTC dates
Estimated median S/N: -17 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 4, 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 TF8YA in decoded directed-looking exchanges:

IQ4JO · Italy ×2 YU1LD · Serbia DG5PW · Fed. Rep. of Germany DL1R · Fed. Rep. of Germany EC5M · Spain F5PBG · France KA2R · United States LA1SNA · Norway OO0O · Belgium PD1ADA · Netherlands RC6OG · European Russia RY7G · European Russia

Most frequent locator attributed to TF8YA

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: HP84 · 4 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 3,052 km (approx.)
Last such locator decoded: 2026-08-24 23:15 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	TF8YA S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 23:20	160m	- / -19	YU1LD	+17 / -	4	✓ Closing fragment
08-30 23:00	80m	- / -19	DK9WI	+10 / -	4	✓ Closing fragment
08-30 22:59	80m	- / -	F4GTB	+8 / -	6	Partial capture
08-30 22:57	60m	- / -9	DK7QJ	-6 / -	2	Partial capture
08-30 22:57	80m	- / -17	F5HNQ	+3 / -	3	✓ Closing fragment
08-30 22:53	60m	- / -15	ON5RZ	-12 / -	3	Partial capture
08-30 22:52	60m	- / -9	DK7QJ	-13 / -	3	Partial capture
08-30 22:49	60m	- / -	DJ6YX	-4 / -	6	✓ Closing fragment
08-30 22:48	60m	- / -16	DF2UU	+2 / -	6	✓ Closing fragment
08-30 22:46	60m	- / -18	PC2F	-10 / -	8	✓ Closing fragment
08-30 22:46	60m	- / -	OH3GBW	-1 / -	4	Partial capture
08-30 22:45	60m	- / -6	9A4ZM	-3 / -	3	✓ Closing fragment
08-30 22:29	60m	- / -11	M0KCM	-4 / -	6	✓ Closing fragment
08-30 22:28	60m	- / -11	SP7SQP	-9 / -	3	✓ Closing fragment
08-30 22:27	60m	- / -1	DK3WN	-18 / -	6	✓ Closing fragment
08-30 22:27	60m	- / -8	IK5PWJ	-10 / -	3	✓ Closing fragment
08-30 22:26	60m	- / -9	G1XOW	+2 / -	3	✓ Closing fragment
08-30 22:20	60m	- / -13	G0AZH	-4 / -	8	✓ Closing fragment
08-30 22:20	60m	- / -19	G4KVI	-10 / -	9	✓ Closing fragment
08-30 22:20	60m	- / -13	DD6ZV	-4 / -	3	✓ Closing fragment
08-30 20:48	20m	- / -	G1BJC	+4 / -	3	Partial capture
08-30 20:48	20m	- / -6	OO0O	+8 / -	4	✓ Closing fragment
08-30 20:44	20m	- / -	G1BJC	+4 / -	2	Partial capture
08-30 20:44	20m	- / -	OO0O	0 / -	3	Partial capture
08-30 19:46	20m	- / -20	RY7G	+4 / -	7	✓ Closing fragment
08-26 18:38	20m	- / -24	DB1EF	-6 / -	3	Partial capture
08-26 18:34	20m	- / -12	DG5PW	+9 / -	3	✓ Closing fragment
08-26 18:29	20m	- / -	LA1SNA	-11 / -	2	✓ Closing fragment
08-24 23:17	20m	- / -	K1CXS	-3 / -	7	Partial capture
08-24 23:15	20m	-14 / -	KA2R	- / -4	3	✓ Closing fragment
08-24 23:09	20m	- / -	CT1BFP	0 / -	13	Partial capture
08-24 23:08	20m	- / -	F1IQH	-22 / -	2	Partial capture
08-24 23:08	20m	- / -	PD0RCQ	-6 / -	5	Partial capture
08-24 23:06	20m	- / -14	W1GSD	-12 / -	5	Partial capture
08-24 23:01	20m	- / -	F4MZI	-22 / -	3	Partial capture
08-24 22:56	40m	- / -16	IZ8PPI	-12 / -	5	Partial capture
08-24 22:54	40m	- / -	UA4PDJ	-9 / -	7	Partial capture
08-24 21:49	80m	-20 / -6	EA1AIQ	-15 / -2	6	✓ Full exchange observed
08-24 21:48	80m	- / -18	HA7TM	+14 / -	5	✓ Closing fragment
08-24 21:44	80m	- / -20	DK9JC	-2 / -	3	✓ Closing fragment
08-24 21:41	80m	- / -	DK8HC	+2 / -	5	Partial capture
08-24 21:41	80m	- / -	G4ZFJ	+7 / -	10	Partial capture
08-24 21:41	80m	- / -22	ON8MA	-15 / -	3	✓ Closing fragment
07-14 23:10	40m	- / -	PD3HB	-17 / -	3	Partial capture
07-14 23:10	40m	- / -9	YO9PH	-24 / -	2	Partial capture
07-14 23:08	40m	- / -	SV1HFE	-2 / -	11	Partial capture
07-14 23:05	40m	- / -11	IQ4JO	+5 / -	3	✓ Closing fragment
07-12 22:21	40m	- / -4	MI0OBC	-1 / -	2	✓ Closing fragment
07-12 21:42	40m	- / -	DL1RB	-11 / -	4	Partial capture
07-12 21:40	40m	- / -	SV3GKU	-16 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
225430  -7  935  TF8YA UA4PDJ LO45 (x5)
225630 -16 2029  TF8YA IZ8PPI -16
225700  -8  934  TF8YA UA4PDJ LO45
225700  -8 2029  TF8YA IZ8PPI RRR
225730  -5  934  TF8YA UA4PDJ LO45
225730 -14 2029  TF8YA IZ8PPI RRR (x3)
234045 -17 1642  TF8YA EA5HM IM99
220800 -15 1426  TF8YA DL1ESZ JO31
220830 -17 1076  TF8YA ON4MAP JO20

160m

UTC    dB Audio  Message
232015 +21  636  TF8YA YU1LD KN04 (x4)

80m

UTC    dB Audio  Message
203245 -10 1420  TF8YA UW5ZO KO30
225715  -1 2500  TF8YA F5HNQ IN98 (x3)
225915 +11 2346  TF8YA F4GTB JN18 (x3)
230015  +9 2080  TF8YA DK9WI JO30
230045  +5 2346  TF8YA F4GTB JN18
230045 +10 2080  TF8YA DK9WI JO30
230115  +6 2346  TF8YA F4GTB JN18
230115 +11 2081  TF8YA DK9WI R-19
230145  +6 2346  TF8YA F4GTB JN18
230145 +10 2080  TF8YA DK9WI 73
230645  -2 2346  TF8YA DO5PY JN49

60m

UTC    dB Audio  Message
225015  +2 1230  TF8YA DF2UU JN48
225045  -3 2125  TF8YA DJ6YX JO52
225045  +2 1230  TF8YA DF2UU R-16
225115  -5 2125  TF8YA DJ6YX JO52
225115  +4 1230  TF8YA DF2UU 73
225145  -5 2125  TF8YA DJ6YX R+14
225215 -17 1222  TF8YA DK7QJ JO41
225215  -2 2125  TF8YA DJ6YX 73
225245 -11 1223  TF8YA DK7QJ JO41
225315 -17 1309  TF8YA ON5RZ JO21 (x3)
225415 -11 1222  TF8YA DK7QJ R-09 (x3)

20m

UTC    dB Audio  Message
194845  +1 1918  TF8YA RY7G LN14 (x3)
204415  +3  377  TF8YA OO0O JO11 (x2)
204445  +3  578  TF8YA G1BJC IO92
204515  +2  377  TF8YA OO0O JO11
204515  +5  578  TF8YA G1BJC IO92
204815  +4  377  TF8YA OO0O JO11
204815  +3  578  TF8YA G1BJC IO92
204845  +9  377  TF8YA OO0O JO11
204845  +3  577  TF8YA G1BJC IO92
204915 +12  377  TF8YA OO0O R-06
204915  +5  578  TF8YA G1BJC IO92
204945  +5  377  TF8YA OO0O 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.

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