DC5TT — 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: Fed. Rep. of Germany Most frequent locator attributed to this token: JN49

Receiver-side FT8 activity involving DC5TT, decoded by SO8OO in southeastern Poland. 126 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-08.

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 126 FT8 messages attributed to DC5TT as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (33%), followed by 40 m (32%) and 20 m (25%). The busiest six-hour window was 16:00-22:00 UTC, containing 49% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -6 dB.

Overview

126

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 41 60m · 11 40m · 40 20m · 32 10m · 2

First attributed message: 2026-06-10
Last attributed message: 2026-10-08 10:43 UTC

Observed FT8 message patterns

Attributed sample: 126 messages
Active dates: 14 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -17 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 77.

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 DC5TT in decoded directed-looking exchanges:

DM9YL · Fed. Rep. of Germany ×2 DK8HC · Fed. Rep. of Germany OH3MB · Finland R8LCA · Asiatic Russia RA6OY · European Russia DF4JY · Fed. Rep. of Germany F3CJ · France IQ0AAX · Italy IQ0YA · Italy IQ2AAH · Italy IQ9SZ · Sicily IZ8PPI · Italy

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 DC5TT

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: JN49 · 75 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 920 km (approx.)
Last such locator decoded: 2026-10-08 10:43 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	DC5TT S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-08 10:43	40m	-18 / -	IQ0QJ	- / -	2	Partial capture
10-03 20:21	40m	+10 / -	IQ4JO	- / -	4	Partial capture
10-03 20:07	40m	-6 / -	IQ9SZ	- / -15	2	✓ Closing fragment
10-03 16:12	40m	-1 / 0	F3CJ	-16 / -7	5	✓ Full exchange observed
10-03 16:11	40m	-1 / -	DF4JY	-14 / -12	3	✓ Closing observed
10-03 16:08	40m	-6 / -	IQ9SZ/2	- / -8	4	Partial capture
10-03 16:04	40m	0 / -15	IQ6KX	-11 / -14	3	Partial capture
10-03 15:59	40m	0 / -8	IQ0YA	-9 / -9	8	✓ Full exchange observed
10-03 15:01	40m	0 / -	IQ0AAX	-13 / -9	3	✓ Closing observed
10-03 14:56	40m	-8 / -	IQ2AAH	-9 / -12	4	✓ Closing observed
10-03 13:08	40m	-18 / +8	DM9YL	-10 / -6	6	✓ Full exchange observed
10-01 04:05	60m	-1 / -	ZF1EJ	- / -	2	Partial capture
10-01 03:48	60m	-3 / -	ZF1EJ	- / -	7	Partial capture
10-01 03:47	60m	-3 / -	HI3QMT	- / -	2	Partial capture
10-01 03:31	80m	-2 / -	DL0ERZ	+4 / -3	6	✓ Closing observed
10-01 03:29	80m	-7 / -17	V47YA	-14 / -10	4	✓ Full exchange observed
10-01 03:26	80m	-7 / -16	TI2SD	-8 / -8	7	✓ Full exchange observed
10-01 03:25	80m	-13 / -	V47YA	- / -	2	Partial capture
10-01 03:22	80m	-9 / -4	F1PBZ	+4 / +3	7	✓ Full exchange observed
10-01 03:22	80m	-7 / -	F4LTX	-11 / 0	2	Partial capture
10-01 03:22	80m	-9 / 0	ON4MAP	-9 / 0	5	✓ Full exchange observed
10-01 03:20	80m	-8 / -	SP5DFK/QRP	- / -6	2	Partial capture
08-28 16:50	20m	- / +4	OH3MB	-20 / -	2	✓ Closing fragment
08-08 14:06	20m	-17 / -	<...>	- / +1	4	Partial capture
08-07 13:34	20m	- / 0	UA3VVA	0 / -	2	Partial capture
08-07 13:30	20m	-16 / -	<...>	- / +1	2	Partial capture
07-29 18:58	20m	-16 / -	HA5KN	-15 / -5	3	Partial capture
07-26 17:29	20m	- / +1	RA6OY	0 / -	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
161245 -14 2102  DC5TT F3CJ R+00
161300  +4 2213  F3CJ DC5TT RR73
161315 -14 2102  DC5TT F3CJ 73
200145  +4 2449  IQ4JO DC5TT JN49 (x2)
200730  -9 1866  IQ9SZ DC5TT R-15 (x2)
202145 +10 2449  IQ4JO DC5TT JN49 (x4)
104315 -18 1625  IQ0QJ DC5TT JN49 (x2)
032700  +4  610  DC5TT P4/WE9V -11
032730  +6  610  DC5TT RR73; EA8BS <...> +00

80m

UTC    dB Audio  Message
032830  -6 1154  DC5TT TI2SD RR73
032845  -7 1592  TI2SD DC5TT 73
032930 -10  540  DC5TT V47YA -17
032945  -5 1592  V47YA DC5TT R-10
033000 -18  541  DC5TT V47YA RR73
033015  -9 1591  V47YA DC5TT 73
033115  -2 1591  DL0ERZ DC5TT JN49 (x4)
033300  +4 1931  DC5TT DL0ERZ RRR
033315  -1 1592  DL0ERZ DC5TT 73
033945  -1 1742  II5GG DC5TT JN49
034100  +1 1742  5P1OT DC5TT JN49
200600  +7 1436  DC5TT RR73; OK1ACE <...> -06

60m

UTC    dB Audio  Message
034700  -5 1381  HI3QMT DC5TT JN49 (x2)
034800  +2 1381  ZF1EJ DC5TT JN49 (x9)

20m

UTC    dB Audio  Message
190100 -12 1872  HA5KN DC5TT JN49
190130 -11 1872  <...> DC5TT JN49 (x3)
133315 -20 2169  DK8HC DC5TT RR73
133400  -1 1144  DC5TT UA3VVA LO06 (x2)
140600 -19 2075  <...> DC5TT JN49 (x4)
185715 -24 1487  <SP1905MFK> DC5TT JN49
165000 -24 1296  DC5TT OH3MB +04 (x2)
165200  -2 2173  DC5TT R8LCA 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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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