T77NC — 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: San Marino Most frequent locator attributed to this token: JN63

Receiver-side FT8 activity involving T77NC, decoded by SO8OO in southeastern Poland. 1,422 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-09-05 and 2026-10-17.

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 1,422 FT8 messages attributed to T77NC as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (71%), followed by 80 m (29%). The busiest six-hour window was 00:00-06:00 UTC, containing 46% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -5 dB.

Overview

1,422

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 412 40m · 1,010

First attributed message: 2026-09-05
Last attributed message: 2026-10-17 07:28 UTC

Observed FT8 message patterns

Attributed sample: 1,422 messages
Active dates: 6 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -13 to +3.5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 77, moderate (-15 to -9 dB) 307, strong (≥ -8 dB) 1,038.

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 T77NC in decoded directed-looking exchanges:

DF8RU · Fed. Rep. of Germany ×2 DJ0MAB · Fed. Rep. of Germany ×2 DK7AO · Fed. Rep. of Germany ×2 DL3MIB · Fed. Rep. of Germany ×2 DL9KM · Fed. Rep. of Germany ×2 DM1SV · Fed. Rep. of Germany ×2 EA7P · Spain ×2 F5MOO · France ×2 F5VHQ · France ×2 HF5A · Poland ×2 I1RJP · Italy ×2 I8OHQ · 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 T77NC

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: JN63 · 499 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 979 km (approx.)
Last such locator decoded: 2026-10-17 07:28 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	T77NC S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-17 07:27	40m	- / -18	YO3GNF	-2 / -	6	✓ Closing fragment
10-17 07:25	40m	- / -	F4BYA	+1 / -	7	Partial capture
10-17 07:22	40m	- / -3	IK2RPE	-8 / -	6	✓ Closing fragment
10-17 07:21	40m	- / -18	DG4KAI	+4 / -	5	✓ Closing fragment
10-17 07:15	40m	- / -	OH3MB	-6 / -	2	Partial capture
10-17 07:11	40m	- / -10	DJ7TO	0 / -	5	✓ Closing fragment
10-17 07:09	40m	- / -20	OZ1KQJ	-11 / -	5	Partial capture
10-17 07:09	40m	- / -10	SP6LZA	-2 / -	2	✓ Closing fragment
10-17 07:08	40m	- / -	DL9FCK	-11 / -	2	Partial capture
10-17 07:04	40m	- / -10	F4BYA	0 / -	4	Partial capture
10-17 07:03	40m	- / -5	E75D	-11 / -	5	Partial capture
10-17 07:01	40m	- / -	HB9BEM	-7 / -	5	✓ Closing fragment
10-17 06:59	40m	- / -1	F4MZI	-20 / -	8	Partial capture
10-17 06:59	40m	- / -	PA3DJR	-14 / -	2	Partial capture
10-17 06:58	40m	- / +3	SP9JCN	+2 / -	8	✓ Closing fragment
10-17 06:57	40m	- / +7	YT3BL	-1 / -	5	✓ Closing fragment
10-17 06:57	40m	- / +8	S56IAR	-2 / -	2	✓ Closing fragment
10-17 06:54	40m	- / -23	9A3K	+14 / -	8	Partial capture
10-17 06:54	40m	- / -	F5JSQ	-4 / -	4	Partial capture
10-17 06:54	40m	- / -11	F5LSU	-3 / -	6	✓ Closing fragment
10-17 06:54	40m	- / -9	IN3ADG	-9 / -	13	Partial capture
10-17 06:54	40m	- / -	IK4CBO	-4 / -	4	Partial capture
10-17 06:53	40m	-10 / -	CT1BFP	- / -2	2	✓ Closing fragment
10-17 06:52	40m	- / -	DH1HF	-14 / -	2	Partial capture
10-17 06:50	40m	- / -	IK4CBO	-1 / -	2	Partial capture
10-17 06:50	40m	-9 / -	IU2SLI	-4 / -	3	✓ Closing observed
10-17 06:48	40m	-6 / -	SP2JEL	-2 / -4	6	Partial capture
10-17 06:47	40m	- / -	9A3K	+14 / -	6	Partial capture
10-17 06:46	40m	- / -13	PF2JV	-10 / -	6	✓ Closing fragment
10-17 06:45	40m	- / -	DG4SCG	+1 / -	6	Partial capture
10-17 06:44	40m	- / -14	ES8JX	-13 / -	3	✓ Closing fragment
10-17 06:42	40m	- / -7	OM6AKO	-7 / -	6	Partial capture
10-17 06:40	40m	- / -	DL3HBF	-2 / -	5	✓ Closing fragment
10-17 06:40	40m	- / -18	PD8O	-7 / -	3	✓ Closing fragment
10-17 06:35	40m	- / -16	PA7D	-7 / -	4	Partial capture
10-17 06:33	40m	- / -15	SP6MLX	-7 / -	18	✓ Closing fragment
10-17 06:32	40m	-12 / -5	IU4TQQ	-15 / -9	2	Partial capture
10-17 06:30	40m	- / -	PD8O	-8 / -	9	Partial capture
10-17 06:29	40m	- / -	LZ3QC	+8 / -	5	Partial capture
10-17 06:29	40m	- / -11	G0BLB	-3 / -	5	✓ Closing fragment
10-17 06:03	40m	-8 / -	OH1EDK	- / -12	3	✓ Closing fragment
10-17 06:02	40m	- / -	DK4OX	-4 / -	5	Partial capture
10-17 06:02	40m	- / -2	DJ7BU	-6 / -	2	Partial capture
10-17 06:01	40m	- / -	IW8CGX	-10 / -	4	Partial capture
10-17 05:58	40m	-6 / -	DG4YT	-8 / -	5	✓ Closing observed
10-17 05:58	40m	-8 / -	IQ8CUM	-9 / -12	2	Partial capture
10-17 05:58	40m	- / -12	YO8CVY	-6 / -	8	Partial capture
10-17 05:56	40m	-9 / -	EA7LIC	-10 / 0	2	Partial capture
10-17 05:56	40m	- / -7	F4BYA	+13 / -	8	Partial capture
10-17 05:56	40m	- / -25	UR5LAK	-2 / -	5	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
072615  +3 2982  T77NC F4BYA JN19
072645  -3  592  T77NC IK2RPE 73
072645  +3 2982  T77NC F4BYA JN19 (x2)
072745  +1  591  T77NC YO3GNF KN34
072745  +1 2982  T77NC F4BYA JN19
072815  +2  592  T77NC YO3GNF KN34
072815 -10  642  T77NC HB9DLT 73
072815  -2 2982  T77NC F4BYA JN19
072830 -16  592  CQ T77NC JN63                         a1
072845  -3  592  T77NC YO3GNF KN34
072845  -1 2982  T77NC F4BYA JN19
072915  -2  592  T77NC YO3GNF KN34 (x3)

80m

UTC    dB Audio  Message
024230  -3  721  T77NC HA5AIL JN96
024300 -10  721  CQ T77NC JN63
024330 -12  720  UB4CJS T77NC -16
024400  -5  721  CQ T77NC JN63
024500  -8  721  HA5AIL T77NC -07
024515  +3  721  T77NC HA5AIL R-10
024530  -8  721  HA5AIL T77NC RR73
024545  +7  721  T77NC HA5AIL 73
024600  -6  721  CQ T77NC JN63
024630 -16  721  EC3A T77NC R-06 (x2)
024715 -14 1908  T77NC S52UF -06 (x4)

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee