IZ1MRO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN45

Receiver-side FT8 activity involving IZ1MRO, decoded by SO8OO in southeastern Poland. 28 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-01.

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 28 FT8 messages attributed to IZ1MRO as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (89%), followed by 40 m (11%). Most decodes (82%) fell within the six-hour window 07:00-13:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

40m · 3 20m · 25

First attributed message: 2026-06-06
Last attributed message: 2026-09-01 05:08 UTC

Observed FT8 message patterns

Attributed sample: 28 messages
Active dates: 8 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -22 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 12.

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 IZ1MRO in decoded directed-looking exchanges:

2E0OEW · England RC9WC · Asiatic Russia RN6MA · European Russia RX3ASQ · European Russia TA4SSK · Asiatic Turkey UA6YW · European Russia UT7UJ · Ukraine DG1KFR · Fed. Rep. of Germany PC2J · Netherlands

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 IZ1MRO

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: JN45 · 20 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,075 km (approx.)
Last such locator decoded: 2026-09-01 05:08 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	IZ1MRO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-01 05:02	40m	- / -	F5PBG	+3 / -	4	Partial capture
09-01 05:01	40m	- / -22	DG1KFR	-4 / -	2	✓ Closing fragment
08-31 07:21	20m	-18 / -17	RX3ASQ	+6 / 0	5	✓ Full exchange observed
08-31 07:17	20m	- / -13	RC9WC	-7 / -	3	✓ Closing fragment
08-31 07:16	20m	- / -20	PA3CPS	+2 / -	8	Partial capture
08-31 07:15	20m	-22 / -	2E0OEW	- / -4	2	✓ Closing fragment
08-30 11:45	20m	0 / -12	UT7UJ	+14 / +3	8	✓ Full exchange observed
08-30 11:44	20m	+4 / -	TA4SSK	- / -11	2	✓ Closing fragment
08-29 19:57	20m	- / -9	UA6YW	-12 / -	3	✓ Closing fragment
08-15 19:39	40m	- / -14	PC2J	-12 / -	3	✓ Closing fragment
07-21 13:12	20m	- / -	DL6UM	-12 / -	5	Partial capture
07-21 13:09	20m	- / -15	RN6MA	+6 / -	2	✓ Closing fragment
06-24 09:08	10m	- / -	E75FM	+7 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
231430 -13 2475  IZ1MRO 4O7CC -09
233630 -20 1137  VU4R IZ1MRO JN45
234115 -20 1257  HK3X IZ1MRO JN45
193930 -12 1714  IZ1MRO PC2J JO22 (x3)
050100  -3  815  IZ1MRO DG1KFR R-22 (x2)
050200  -2 2845  IZ1MRO F5PBG IN78 (x4)
050830  -8 2910  5J0BFB IZ1MRO JN45

20m

UTC    dB Audio  Message
071745  +2 1935  IZ1MRO PA3CPS JO32
071815  -3 1459  IZ1MRO RC9WC -13
071815  -8 1935  IZ1MRO PA3CPS JO32
071845 -12 1458  IZ1MRO RC9WC RR73
071945  +8 1934  IZ1MRO PA3CPS R-20 (x3)
072115  +7 1401  IZ1MRO RX3ASQ KO95
072115  +7 1934  IZ1MRO PA3CPS R-22
072130 -22 2494  RX3ASQ IZ1MRO +00
072145  +4 1401  IZ1MRO RX3ASQ R-17
072200 -15 2495  RX3ASQ IZ1MRO RR73
072215  +8 1401  IZ1MRO RX3ASQ 73
072230 -16 2495  CQ IZ1MRO JN45 (x2)

10m

UTC    dB Audio  Message
090845 +11 3027  IZ1MRO E75FM JN93 (x3)

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.

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