DL1YBB — 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: JO30

Receiver-side FT8 activity involving DL1YBB, decoded by SO8OO in southeastern Poland. 56 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-30 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 56 FT8 messages attributed to DL1YBB as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (91%), followed by 40 m (9%). Most decodes (89%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 51 40m · 5

First attributed message: 2026-09-30
Last attributed message: 2026-10-17 20:05 UTC

Observed FT8 message patterns

Attributed sample: 56 messages
Active dates: 4 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 25.

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 DL1YBB in decoded directed-looking exchanges:

S57ACD · Slovenia 4Z5AV · Israel DK1HSI · Fed. Rep. of Germany DL3BH · Fed. Rep. of Germany DO2ZZ · Fed. Rep. of Germany DO8JB · Fed. Rep. of Germany OH9FTW · Finland RW1AI · European Russia SM4DDS · Sweden SP9DWT · Poland TF4M · Iceland

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 DL1YBB

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: JO30 · 30 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,053 km (approx.)
Last such locator decoded: 2026-10-17 20:04 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	DL1YBB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-17 20:04	80m	-15 / -5	SM4DDS	-4 / -5	5	✓ Full exchange observed
10-17 19:56	80m	-6 / -	DK1HSI	-12 / -	4	✓ Closing observed
10-17 19:51	80m	-2 / -	SM0LQB	- / -	3	Partial capture
10-17 19:49	80m	0 / -13	RW1AI	-8 / +1	4	✓ Full exchange observed
10-17 19:46	80m	-8 / -	4Z5AV	- / -14	4	✓ Closing fragment
10-17 19:43	80m	-6 / +2	TF4M	-15 / -1	3	✓ Full exchange observed
10-17 19:39	80m	-3 / -1	DK8HC	-2 / -	4	Partial capture
10-17 19:37	80m	-1 / -9	OH9FTW	-8 / -8	5	✓ Full exchange observed
10-17 19:31	80m	-4 / -	TF4M	- / -15	6	Partial capture
10-07 07:13	80m	-23 / -7	DL3BH	-20 / +7	3	✓ Full exchange observed
10-06 15:56	80m	-9 / +9	DJ0WO	+2 / -	3	Partial capture
10-06 15:54	80m	-22 / -	YO7CFD	- / -	2	Partial capture
10-06 15:53	80m	-18 / -	OM2WW	- / -	2	Partial capture
10-06 15:51	80m	-10 / -1	SP9DWT	+6 / -11	5	✓ Full exchange observed
10-06 15:42	80m	-15 / -3	DO2ZZ	-13 / -12	5	✓ Full exchange observed
10-06 15:39	80m	-18 / -	DO2AY	- / -4	2	Partial capture
10-06 15:35	80m	-13 / -11	DO8JB	-12 / -2	3	✓ Full exchange observed
10-06 13:12	40m	-12 / -	S57ACD	0 / -19	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
195000  -9 2247  DL1YBB RW1AI RR73
195015  +1 2206  RW1AI DL1YBB 73
195115  +1 1305  SM0LQB DL1YBB JO30 (x3)
195600  -3 1366  DK1HSI DL1YBB JO30 (x2)
195645 -12 1177  DL1YBB DK1HSI RR73
195700  -8 1365  DK1HSI DL1YBB 73
195830  -8 1365  PA3FET DL1YBB JO30
200445 -18 1425  SM4DDS DL1YBB JO30
200500  -4 1485  DL1YBB SM4DDS -05
200515 -13 1425  SM4DDS DL1YBB R-05
200530  -4 1486  DL1YBB SM4DDS RR73
200545 -13 1425  SM4DDS DL1YBB 73

40m

UTC    dB Audio  Message
082015 -19 1194  EA5GVJ DL1YBB JO30
082200 -22 1640  AF4OD DL1YBB JO30
131200 -11 1474  S57ACD DL1YBB R-19
131215  +0 2427  DL1YBB S57ACD RR73
131230 -12 1474  S57ACD DL1YBB 73
132645 -16 2104  II5GG DL1YBB JO30

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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