IZ0RPS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN52

Receiver-side FT8 activity involving IZ0RPS, decoded by SO8OO in southeastern Poland. 1,621 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 73 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-07.

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 1,621 FT8 messages attributed to IZ0RPS as the transmitting token by decoded message structure across 73 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (43%), followed by 40 m (17%) and 80 m (16%). The busiest six-hour window was 15:00-21:00 UTC, containing 49% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -5 dB.

Overview

1,621

Messages attributed

UTC dates decoded

271

Active 15-min windows

-5 dB

Estimated median S/N

Bands

160m · 71 80m · 265 60m · 168 40m · 272 20m · 694 10m · 151

First attributed message: 2026-06-08
Last attributed message: 2026-10-07 14:18 UTC

Observed FT8 message patterns

Attributed sample: 1,621 messages
Active dates: 73 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -16.2 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 211, moderate (-15 to -9 dB) 365, strong (≥ -8 dB) 1,045.

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 IZ0RPS in decoded directed-looking exchanges:

HA7TM · Hungary ×3 SV9MBH · Crete ×2 KR3Y · United States ×2 TA4SSK · Asiatic Turkey ×2 CR5VP · Portugal ×2 DK8HC · Fed. Rep. of Germany ×2 DL3RN · Fed. Rep. of Germany ×2 OZ9FF · Denmark ×2 TA3XEE · Asiatic Turkey ×2 UA4FKT · European Russia ×2 UN8DSW · Kazakhstan ×2 YO4NF · Romania ×2

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 IZ0RPS

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: JN52 · 707 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,170 km (approx.)
Last such locator decoded: 2026-10-07 14:08 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	IZ0RPS S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-07 14:17	40m	-14 / -7	S55A	-10 / -3	4	✓ Full exchange observed
10-07 14:08	40m	-4 / -	HB9ELE	+5 / +5	5	✓ Full exchange observed
10-07 14:06	40m	-10 / +4	DL3RN	-10 / -5	5	✓ Full exchange observed
10-07 05:57	40m	-3 / -	TA3XEE	- / -23	3	✓ Closing fragment
10-07 05:55	40m	-4 / -	CT3MD	- / -12	4	✓ Closing fragment
10-07 05:48	40m	-5 / -	C5R	- / -	9	Partial capture
10-06 15:00	40m	+3 / +6	EV1R	+14 / +2	6	✓ Full exchange observed
10-06 09:22	40m	-20 / -7	OE3SKB	-16 / -15	3	✓ Full exchange observed
10-06 09:19	40m	-18 / -17	ES2AJ	-12 / -15	9	✓ Full exchange observed
10-06 09:17	40m	-17 / -	CT3MD	- / -	3	Partial capture
10-05 17:22	160m	-16 / -16	R2RAK	-17 / -19	8	✓ Full exchange observed
10-05 17:20	160m	-7 / -	LZ2IP	- / -	2	Partial capture
10-05 16:56	80m	+4 / -2	OE5DML	+4 / -4	4	✓ Full exchange observed
10-05 06:09	40m	-8 / -	YV5YAM	- / -21	5	✓ Closing fragment
10-05 06:08	40m	-12 / -	LU6HOG	- / -	2	Partial capture
10-05 06:05	40m	-3 / -	ZL1OGX	- / -15	3	✓ Closing fragment
10-05 05:51	40m	0 / -5	YO6LM	-15 / -9	5	✓ Full exchange observed
10-05 05:50	40m	-4 / -	EB2EMZ	- / -5	2	✓ Closing fragment
10-05 05:49	40m	+4 / -	J88IH	- / -20	2	✓ Closing fragment
10-04 16:31	60m	+2 / -1	OZ9FF	-10 / +1	5	✓ Full exchange observed
10-04 16:31	60m	+2 / 0	G4HUE	+1 / -4	5	✓ Full exchange observed
10-04 16:29	60m	+1 / -	OE3OOG	-3 / -	5	✓ Full exchange observed
10-04 16:28	60m	+2 / -	DL3RN	-10 / -5	5	✓ Full exchange observed
10-04 16:27	60m	+2 / -3	EU1KY	+5 / -4	5	✓ Full exchange observed
10-04 15:47	40m	0 / -	EA4FME	- / -5	2	✓ Closing fragment
10-04 15:46	40m	+3 / -	UA9ZZ	- / -	2	Partial capture
10-04 15:45	40m	+4 / +7	OK2VCR	-4 / -2	3	✓ Full exchange observed
10-04 15:43	40m	+2 / -7	US3EW	-1 / -5	6	✓ Full exchange observed
10-04 15:42	40m	+2 / -	HA3TBL	-17 / +6	3	✓ Closing observed
10-04 15:40	40m	+1 / -2	HA7TM	+9 / -	5	✓ Full exchange observed
10-04 15:40	40m	0 / -	R8CW	-8 / -13	4	✓ Closing observed
10-04 15:37	40m	0 / -10	EX7CQ	-14 / -7	5	✓ Full exchange observed
10-04 06:45	60m	-4 / -	Z61DX	- / +3	2	✓ Closing fragment
10-04 06:43	40m	- / -	PD1WS	-14 / -	2	Partial capture
10-04 06:39	40m	-8 / -	XE1PM	- / -17	3	✓ Closing fragment
10-03 20:50	40m	+6 / -12	SV5ADM	-11 / +3	6	✓ Full exchange observed
10-03 20:47	160m	- / -11	OK1KUB	-8 / -	2	✓ Closing fragment
10-03 20:46	160m	-8 / -	LA1PHA	- / -	2	Partial capture
10-03 20:44	160m	-8 / -	EW2ZC	- / -	2	Partial capture
10-03 20:41	160m	-7 / +5	IK6BSN	-10 / -3	5	✓ Full exchange observed
10-03 20:39	160m	-6 / -17	II5GG	-6 / -2	5	✓ Full exchange observed
10-03 20:36	40m	+5 / -	CS8ABF	-12 / -1	6	✓ Closing observed
10-03 20:04	40m	+3 / +5	DL6NAC	+11 / -	4	✓ Full exchange observed
10-03 19:59	40m	+5 / -	HL3KPJ	- / -19	6	✓ Closing fragment
10-03 19:56	40m	+10 / -10	TA1EV	-8 / -8	6	✓ Full exchange observed
10-03 19:54	80m	+4 / -	CT4KQ	-15 / -15	3	✓ Closing observed
10-03 19:45	40m	- / -	DL1UDO	-5 / -	3	Partial capture
10-03 19:44	40m	+4 / -15	TA1EV	-9 / -	3	Partial capture
10-03 19:42	40m	+10 / -	YC2BUZ	- / -	2	Partial capture
10-03 19:37	40m	+11 / -	TJ1GD	- / -12	6	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
140600 -12 1037  CQ IZ0RPS JN52                        a1
140615 -11 1037  IZ0RPS DL3RN JN59
140630 -10 1037  DL3RN IZ0RPS -05
140645 -11 1037  IZ0RPS DL3RN R+04
140700 -10 1037  DL3RN IZ0RPS RR73
140715  -9 1037  IZ0RPS DL3RN 73
140845  -5  741  HB9ELE IZ0RPS JN52
140900  +3  741  IZ0RPS HB9ELE +14
140915  -2  741  HB9ELE IZ0RPS R+05
140930  +7  741  IZ0RPS HB9ELE RR73
140945  -5  741  HB9ELE IZ0RPS 73
141715  -8 1851  IZ0RPS S55A -07
141730 -14 1851  S55A IZ0RPS R-03
141745 -11 1851  IZ0RPS S55A RR73
141800 -13 1851  S55A IZ0RPS 73

160m

UTC    dB Audio  Message
204545  -3 1478  CQ IZ0RPS JN52
204615 -11 2127  LA1PHA IZ0RPS JN52 (x2)
204730  -8 1587  IZ0RPS OK1KUB -11 (x2)
172045  -9  851  LZ2IP IZ0RPS JN52 (x2)
172215 -15 1999  IZ0RPS R2RAK -16
172230 -15 1998  R2RAK IZ0RPS R-19
172245 -22 1999  IZ0RPS R2RAK -16
172300 -15 1998  R2RAK IZ0RPS R-19
172315 -14 1999  IZ0RPS R2RAK -16
172330 -20 1998  R2RAK IZ0RPS R-17
172345 -16 1999  IZ0RPS R2RAK RR73
172400 -16 1999  R2RAK IZ0RPS 73

80m

UTC    dB Audio  Message
060245 -13 1110  IZ0RPS DO2NTC RR73
060300 -12 2095  E73S IZ0RPS JN52
195330  +2 1848  5Z4AB IZ0RPS JN52
195400  +6  713  CQ IZ0RPS JN52 (x2)
195445 -15  713  IZ0RPS CT4KQ IN60
195500  +8  713  CT4KQ IZ0RPS -15 (x2)
163500  +2 2283  CQ IZ0RPS JN52                        a1 (x3)
165645  +1 1945  IZ0RPS OE5DML JN78
165700  +4 1945  OE5DML IZ0RPS -04
165715  +7 1945  IZ0RPS OE5DML R-02 (x2)

60m

UTC    dB Audio  Message
163000  +2 1215  OE3OOG IZ0RPS +11
163015  +0 1707  IZ0RPS OE3OOG R+15
163030  +0 1214  OE3OOG IZ0RPS RR73
163045  -4 1707  IZ0RPS OE3OOG 73
163100  +2 1214  CQ IZ0RPS JN52
163115  +2  685  IZ0RPS G4HUE IO92
163130  +2 1215  G4HUE IZ0RPS -04
163145 -10 2316  IZ0RPS OZ9FF -01
163145  +1  685  IZ0RPS G4HUE R+00
163200  +1 1215  G4HUE IZ0RPS RR73
163215  +1  685  IZ0RPS G4HUE 73
163230  +0 1214  OZ9FF IZ0RPS R+01 (x2)
163315  -9 2317  IZ0RPS OZ9FF RR73
163330  +2 2315  OZ9FF IZ0RPS 73

10m

UTC    dB Audio  Message
141630  -3 2577  RW9HSB IZ0RPS R-01 (x2)
084930 -16  827  OM8FR IZ0RPS R-10
123800 -22 1599  PU2LUO IZ0RPS JN52
135145 -15 1941  CQ DX IZ0RPS JN52 (x4)
161245 -17 1095  CE3TO IZ0RPS JN52
114815 -15 2394  IZ0RPS D2ACE RR73
195030 -20 1346  <...> IZ0RPS R-17
121830  -6  985  RI1FJL IZ0RPS JN52
122200 -19 1153  LA3YNA IZ0RPS R-20
155300 -23 1530  9Y4DZ IZ0RPS R-12
155715 -17 2173  IZ0RPS PS8ARP GI84

20m

UTC    dB Audio  Message
060615  -3  781  TA4SSK IZ0RPS RR73
060630  +0 1480  IZ0RPS TA4SSK R+08
060645  +1  781  TA4SSK IZ0RPS RR73
060700 -11 1480  IZ0RPS TA4SSK R+08
060700  -3  423  IZ0RPS F5SZB IN95
060730  +2 1481  IZ0RPS TA4SSK R+08
061230  -4 1579  VK6CO IZ0RPS JN52 (x2)
061430  -2 1579  CQ DX IZ0RPS JN52
061445 +18 2110  IZ0RPS R6LE LN07
061500  +3 1027  HK3AB IZ0RPS R-13 (x2)
061600  -5 1343  VK3JRL IZ0RPS JN52 (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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