CT1DOF — 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: Portugal Most frequent locator attributed to this token: IN51

Receiver-side FT8 activity involving CT1DOF, decoded by SO8OO in southeastern Poland. 135 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-07-07 and 2026-11-04.

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 135 FT8 messages attributed to CT1DOF as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (60%), followed by 40 m (17%) and 160 m (15%). Most decodes (91%) fell within the six-hour window 01:00-07:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

135

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

160m · 20 80m · 81 40m · 23 20m · 11

First attributed message: 2026-07-07
Last attributed message: 2026-11-04 04:09 UTC

Observed FT8 message patterns

Attributed sample: 135 messages
Active dates: 13 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -22 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 45, moderate (-15 to -9 dB) 47, strong (≥ -8 dB) 43.

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 CT1DOF in decoded directed-looking exchanges:

9A4ZM · Croatia F5RAB · France OH0Z · Aland Islands SV9CVY · Crete UG4L · European Russia W3LL · United States 2W0YOX · Wales DH1KJ · Fed. Rep. of Germany DL4DP · Fed. Rep. of Germany EA5PS · Spain GM6URC · Scotland KP2B · US Virgin Islands

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 CT1DOF

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: IN51 · 37 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,546 km (approx.)
Last such locator decoded: 2026-11-04 04:08 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	CT1DOF S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 04:09	160m	-22 / -	W3LL	- / -5	2	✓ Closing fragment
11-04 03:37	160m	-16 / -	9A4ZM	0 / -14	4	✓ Closing observed
11-04 03:35	160m	-21 / -19	UG4L	-16 / -21	6	✓ Full exchange observed
11-04 03:34	160m	-24 / +5	F5RAB	-2 / -8	4	✓ Full exchange observed
10-29 23:37	160m	-17 / +4	SV9CVY	+13 / -18	6	✓ Full exchange observed
10-27 23:17	160m	-14 / +3	OH0Z	+4 / -23	6	✓ Full exchange observed
10-26 06:24	80m	- / -	ON4MAP	-21 / -	3	Partial capture
10-24 02:11	80m	+2 / -17	XE2X	-20 / -17	4	✓ Full exchange observed
10-24 02:07	80m	0 / -	GM6URC	- / -18	2	✓ Closing fragment
10-24 02:07	80m	+4 / -4	DL4DP	-10 / -	3	✓ Closing observed
10-24 02:02	80m	0 / -9	R9CB	-20 / -15	5	✓ Full exchange observed
10-24 01:53	80m	-15 / -	XE2X	- / -	2	Partial capture
10-24 01:50	80m	- / -	R9JX	-3 / -	2	✓ Closing fragment
10-24 01:49	80m	-14 / +1	DH1KJ	+7 / -8	9	✓ Full exchange observed
10-24 01:44	80m	-12 / -17	R9JX	-8 / -	4	Partial capture
10-06 05:18	80m	-12 / -	KP2B	- / -13	3	✓ Closing fragment
09-25 05:10	80m	-21 / -	2W0YOX	-4 / -3	3	✓ Closing observed
09-25 05:04	80m	-20 / -	HK3TY	- / -16	2	Partial capture
08-30 20:46	80m	-16 / -	2W0YOX	- / -	2	Partial capture
08-30 20:43	80m	- / -	IU1DOF	-12 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
033500 -24 1976  F5RAB CT1DOF RR73
033515 -18 1643  CT1DOF UG4L LO33
033515  -4 2932  CT1DOF F5RAB 73
033530 -24 1976  UG4L CT1DOF -21
033545 -13 1643  CT1DOF UG4L R-19
033600 -23 1976  UG4L CT1DOF -21
033700  +1 1972  CT1DOF 9A4ZM JN86
033715 -17 1976  UG4L CT1DOF RR73 (x2)
033815 -17 1976  9A4ZM CT1DOF -14 (x2)
033900  +0 1972  CT1DOF 9A4ZM 73
040830 -17 1976  CQ DX CT1DOF IN51
040900 -20 1975  W3LL CT1DOF -05 (x2)

80m

UTC    dB Audio  Message
020415  +0 1945  R9CB CT1DOF 73
020615  -2 1945  ON8FAB CT1DOF RR73
020700 -10  918  CT1DOF DL4DP R-04
020715  +4 1945  DL4DP CT1DOF RR73
020730 -11  918  CT1DOF DL4DP 73
020745  +2 1945  GM6URC CT1DOF R-18 (x2)
021145  +2 1975  XE2X CT1DOF IN51
021200 -21 2762  CT1DOF XE2X -17
021215  +2 1975  XE2X CT1DOF R-17
021230 -20 2762  CT1DOF XE2X RR73
062430 -22 1412  CT1DOF ON4MAP JO20 (x3)
034900  -2 1976  4L1FL CT1DOF IN51

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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