ZL3IO — 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: New Zealand Most frequent locator attributed to this token: RF80

Receiver-side FT8 activity involving ZL3IO, decoded by SO8OO in southeastern Poland. 191 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-09-19 and 2026-10-09.

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 191 FT8 messages attributed to ZL3IO as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (88%), followed by 80 m (12%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

191

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 22 40m · 169

First attributed message: 2026-09-19
Last attributed message: 2026-10-09 05:54 UTC

Observed FT8 message patterns

Attributed sample: 191 messages
Active dates: 3 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -15 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 65, strong (≥ -8 dB) 109.

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 ZL3IO in decoded directed-looking exchanges:

YO8RCA · Romania ×2 HB9ALO · Switzerland ×2 DL8TT · Fed. Rep. of Germany F1BHB · France IK2IKW · Italy MI9PBM · Northern Ireland 2E0TXZ · England 9A6P · Croatia DC9TS · Fed. Rep. of Germany DD1OO · Fed. Rep. of Germany DG1KFR · Fed. Rep. of Germany DG3BD · Fed. Rep. of Germany

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 ZL3IO

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: RF80 · 45 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 17,754 km (approx.)
Last such locator decoded: 2026-10-09 05:49 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	ZL3IO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-09 06:43	80m	- / -	ES8JX	+2 / -	3	Partial capture
10-09 06:41	80m	- / -15	DO9AO	+4 / -	4	Partial capture
10-09 06:39	80m	- / -	ES8JX	-4 / -	3	Partial capture
10-09 06:38	80m	- / -16	DK6WH	-11 / -	12	Partial capture
10-09 06:35	80m	- / -	DD6MH	-17 / -	3	Partial capture
10-09 06:35	80m	- / -8	F8BUI	-20 / -	4	✓ Closing fragment
10-09 06:35	80m	- / -	OZ6FH	-16 / -	10	Partial capture
10-09 06:34	80m	- / -	IK2DZN	-22 / -	4	Partial capture
10-09 06:33	80m	- / -	ON3MV	-9 / -	8	Partial capture
10-09 06:31	80m	- / -	DH4RL	-4 / -	2	Partial capture
10-09 06:31	80m	- / +10	F5NBU	-3 / -	4	✓ Closing fragment
10-09 06:31	80m	- / -24	IK2TPX	-14 / -	6	✓ Closing fragment
10-09 06:31	80m	- / +5	F5LRU	-14 / -	2	✓ Closing fragment
10-09 06:28	80m	- / -	PE2JMR	-13 / -	3	Partial capture
10-09 06:28	80m	- / -	DH4RL	-10 / -	3	Partial capture
10-09 06:26	80m	- / -	GM4YXI	-19 / -	4	Partial capture
10-09 06:26	80m	- / -	PC2J	-20 / -	3	Partial capture
10-09 06:25	80m	- / -6	PA0O	-1 / -	3	✓ Closing fragment
10-09 06:25	80m	- / -	OZ6FH	-16 / -	9	Partial capture
10-09 06:23	80m	- / -	PE2JMR	-19 / -	2	Partial capture
10-09 06:22	80m	- / -	PC2J	-21 / -	3	Partial capture
10-09 06:22	80m	- / -	IZ0SQZ	-20 / -	2	Partial capture
10-09 06:21	80m	- / -4	F6DAY	-12 / -	7	✓ Closing fragment
10-09 06:19	80m	- / -	DO1UGS	-4 / -	14	Partial capture
10-09 06:18	80m	- / -22	DK6WH	-10 / -	26	Partial capture
10-09 06:18	80m	- / -	DL7ULA	-6 / -	13	Partial capture
10-09 06:18	80m	- / -	S51U	+13 / -	2	Partial capture
10-09 06:17	80m	- / -	DH4RL	-3 / -	12	Partial capture
10-09 06:17	80m	- / -	DL8HD	0 / -	4	Partial capture
10-09 06:17	80m	- / -	F4GUK	-12 / -	4	Partial capture
10-09 06:16	80m	- / -	DK3RW	-13 / -	5	Partial capture
10-09 06:16	80m	- / -	DO2AY	-21 / -	3	Partial capture
10-09 06:16	80m	- / -	OH5BM	+6 / -	5	Partial capture
10-09 06:15	80m	- / -3	G7IRN	-9 / -	7	✓ Closing fragment
10-09 06:14	80m	- / -	DL7ULA	-11 / -	4	Partial capture
10-09 06:14	80m	- / -	S51U	+15 / -	4	Partial capture
10-09 06:14	80m	- / -	SP6FME	+5 / -	3	Partial capture
10-09 06:13	80m	- / -	IZ0SQZ	-22 / -	10	Partial capture
10-09 06:12	80m	- / -	I8IGS	-24 / -	2	Partial capture
10-09 06:11	80m	- / -	DO1UGS	-1 / -	9	Partial capture
10-09 06:11	80m	- / -	LA0FA	-5 / -	4	✓ Closing fragment
10-09 06:11	80m	- / -	SP5EXA	+8 / -	5	Partial capture
10-09 06:10	80m	- / -	IK2DZN	-21 / -	30	Partial capture
10-09 06:09	80m	- / -	S51U	+16 / -	3	Partial capture
10-09 06:08	80m	- / -	DL2YBG	-14 / -	4	Partial capture
10-09 06:08	80m	- / -	DL7ULA	-18 / -	3	Partial capture
10-09 06:08	80m	- / -	IZ2EWN	-17 / -	3	Partial capture
10-09 06:07	80m	- / -4	DA6EE	-1 / -	4	✓ Closing fragment
10-09 06:07	80m	- / -	DO1FZL	-15 / -	3	Partial capture
10-09 06:06	80m	- / -16	DK6WH	-12 / -	13	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
064115 -13 1632  ZL3IO DK6WH -16
064145  +6 1200  ZL3IO DO9AO -15
064145  -9 1632  ZL3IO DK6WH -16
064215  +1 1200  ZL3IO DO9AO -15
064215 -20 1632  ZL3IO DK6WH -16
064315 -15 1850  ZL3IO OZ6FH 73
064315 -12 1632  ZL3IO DK6WH -16
064345  +0 2637  ZL3IO ES8JX KO28
064345  +4 1200  ZL3IO DO9AO -15
064345 -11 1632  ZL3IO DK6WH -16
064415  +2 2637  ZL3IO ES8JX KO28
064415  +7 1200  ZL3IO DO9AO -15
064415 -11 1632  ZL3IO DK6WH -16
064445  +5 2637  ZL3IO ES8JX KO28
064445 -13 1632  ZL3IO DK6WH -16

40m

UTC    dB Audio  Message
051815  -4 1263  ZL3IO RU3ACA R-16
051815  +6 1105  ZL3IO ON6AO JO20
051815  -3  826  ZL3IO LZ2INP KN34
051845  -2 1105  ZL3IO ON6AO JO20
051845  -1  826  ZL3IO LZ2INP KN34
051915  +3 1263  ZL3IO RU3ACA R-16
051915  +2 1105  ZL3IO ON6AO JO20
051915  +1  826  ZL3IO LZ2INP KN34
051945  +0 1105  ZL3IO ON6AO JO20
051945  -6  826  ZL3IO LZ2INP R-25
052015  -2 1105  ZL3IO ON6AO JO20
052015  +1  826  ZL3IO LZ2INP 73
052045  +4  825  ZL3IO TU 73
052045  -2 1105  ZL3IO ON6AO JO20
052245  +4  593  ZL3IO RW3XZ 73

20m

UTC    dB Audio  Message
073215 -16 1943  ZL3IO MM0JTV IO75
073245  -7  790  ZL3IO PF2JV JO22
073245 -17 1943  ZL3IO MM0JTV IO75
073245 -14 1307  ZL3IO M0CSD IO94
073315 -10 1943  ZL3IO MM0JTV IO75 (x2)
073345 -23 1307  ZL3IO M0CSD IO94
073415  -9 1943  ZL3IO MM0JTV IO75
073415 -19 1307  ZL3IO M0CSD IO94
073445 -12 1942  ZL3IO MM0JTV R-14 (x5)
074045 -21 1645  ZL3IO DL6RDE -12

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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