IV3VFR — 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: Italy Most frequent locator attributed to this token: JN65

Receiver-side FT8 activity involving IV3VFR, decoded by SO8OO in southeastern Poland. 325 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 20 UTC dates in the available aggregate history. Observed between 2026-08-20 and 2026-10-22.

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 325 FT8 messages attributed to IV3VFR as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (33%), followed by 160 m (31%) and 80 m (18%). Most decodes (86%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was +3 dB.

Overview

325
Messages attributed
20
UTC dates decoded
50
Active 15-min windows
+3 dB
Estimated median S/N

Bands

160m · 101 80m · 57 60m · 54 40m · 106 20m · 7
First attributed message: 2026-08-20
Last attributed message: 2026-10-22 06:16 UTC

Observed FT8 message patterns

Attributed sample
325 messages
Active dates
20 UTC dates
Estimated median S/N
+3 dB
Estimated 10th-90th percentile
-8 to +14 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 295.

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 IV3VFR in decoded directed-looking exchanges:

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 IV3VFR

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
JN65 · 209 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
821 km (approx.)
Last such locator decoded
2026-10-22 06:14 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 UTCBandIV3VFR S/NCounterpartCounterpart S/NMsgsCapture
10-22 06:06 40m -2 / - TO4A - / +6 20 ✓ Closing fragment
10-15 20:20 80m +12 / 0 DO9BAU +2 / +10 5 ✓ Full exchange observed
10-15 20:18 80m +16 / - D2UY - / -17 3 ✓ Closing fragment
10-15 16:47 80m +16 / - R9CS/P - / - 2 Partial capture
10-15 16:45 80m +15 / -16 UN0GY -18 / -10 4 ✓ Full exchange observed
10-11 18:22 60m -6 / - 9H6C - / - 3 Partial capture
10-11 18:11 60m -4 / - 9H6C - / - 4 Partial capture
10-11 17:16 60m -10 / - JW9DL - / - 7 Partial capture
10-11 17:09 60m -8 / - JW9DL - / - 5 Partial capture
10-11 17:02 60m -12 / - JW9DL - / - 8 Partial capture
10-11 16:46 60m -4 / - JW9DL - / -19 14 Partial capture
10-11 16:39 60m -6 / - H49A - / -15 7 ✓ Closing fragment
10-06 16:53 40m +16 / - DF4JY - / -8 2 ✓ Closing fragment
10-06 16:51 40m +12 / -9 DD5DD -19 / -19 7 ✓ Full exchange observed
10-06 16:49 40m +16 / - EX8ABR - / -7 3 ✓ Closing fragment
10-05 20:03 40m +2 / - TJ1GD - / -24 4 ✓ Closing fragment
10-01 16:34 60m +4 / - KH6U - / - 4 Partial capture
09-30 05:44 40m -1 / - EA2EDI - / -17 2 ✓ Closing fragment
09-30 05:39 40m -1 / -11 UR9QQ -12 / -14 6 ✓ Full exchange observed
09-30 05:38 40m +6 / - EA2EDI - / -14 2 ✓ Closing fragment
09-30 05:36 40m +2 / - DL6LG - / -22 3 ✓ Closing fragment
09-30 05:34 40m +2 / -13 UT5MB -4 / - 3 ✓ Closing observed
09-30 05:33 40m +3 / - OA4ENG - / -18 3 ✓ Closing fragment
09-29 16:53 40m +7 / - C31HS - / - 3 Partial capture
09-29 16:49 40m +10 / -12 RA9CUU -7 / -9 4 ✓ Full exchange observed
09-29 16:39 80m +18 / -15 UA6EU -14 / -14 4 ✓ Full exchange observed
09-29 16:39 80m +18 / +7 UA4FKT +6 / - 6 ✓ Full exchange observed
09-29 16:37 80m +16 / - JA2VBK - / -16 4 ✓ Closing fragment
09-24 17:21 40m +3 / - R8LCP - / -10 3 ✓ Closing fragment
09-23 17:31 40m -1 / -2 VK2MDS -2 / -10 6 ✓ Full exchange observed
09-22 20:03 160m +8 / - RW9QA - / - 2 Partial capture
09-22 19:55 160m -5 / - RW9QA - / -21 8 Partial capture
09-22 19:52 160m -4 / - RW9QA - / - 2 Partial capture
09-22 19:51 160m +2 / - GM1TGY - / -9 3 ✓ Closing fragment
09-22 19:12 160m +1 / - JH0RNN - / - 3 Partial capture
09-22 19:08 160m 0 / - JA1RTX - / - 3 Partial capture
09-22 16:41 160m 0 / -3 YO7ZG -5 / -12 5 ✓ Full exchange observed
09-22 16:31 160m +6 / - RV9FF - / - 4 Partial capture
09-21 20:48 160m +5 / - RI1FJZ - / - 26 Partial capture
09-21 20:27 160m +7 / -14 RA9YTI -18 / -15 8 ✓ Full exchange observed
09-21 20:22 160m +7 / - UA4CKN -11 / -21 4 Partial capture
09-21 20:20 160m +8 / - JI4WAO - / -23 4 ✓ Closing fragment
09-21 20:20 160m - / -5 R6JAG -6 / - 3 Partial capture
09-21 20:16 160m +9 / -16 RA8AO -22 / -15 3 ✓ Full exchange observed
09-20 20:25 160m 0 / - RI1FJZ - / - 3 Partial capture
09-20 19:19 160m +8 / - RI1FJZ - / - 2 Partial capture
09-20 18:39 160m -2 / - RI1FJZ - / - 2 Partial capture
09-20 18:38 160m 0 / - SV8TBJ - / - 2 Partial capture
09-20 18:26 160m - / -26 SP8V -4 / - 3 ✓ Closing fragment
09-20 18:23 160m +4 / - RI1FJZ - / -25 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
060845  +0 2473  TO4A IV3VFR JN65 (x15)
80m 
UTC    dB Audio  Message
164545 +14 2390  UN0GY IV3VFR JN65
164600 -18 2457  IV3VFR UN0GY -16
164615 +14 2390  UN0GY IV3VFR R-10 (x2)
164715 +13 2390  R9CS/P IV3VFR JN65 (x2)
201830 +16 2294  D2UY IV3VFR JN65 (x3)
202030 +16 2294  DL6EL IV3VFR 73
202045  +6 2102  IV3VFR DO9BAU JO62
202100 +13 2294  DO9BAU IV3VFR +10
202115  +3 2102  IV3VFR DO9BAU R+00
202130 +12 2294  DO9BAU IV3VFR RR73
202145  -4 2102  IV3VFR DO9BAU 73
60m 
UTC    dB Audio  Message
171715  -9 1969  JW9DL IV3VFR JN65 (x5)
181145  -4 2194  9H6C IV3VFR JN65 (x8)
182600 -21 1411  IV3VFR RR73; DM1KM <...> -10
202815 -19 2145  A92AE IV3VFR JN65
160m 
UTC    dB Audio  Message
195130  +7 2445  GM1TGY IV3VFR JN65
195200  +1 2445  RW9QA IV3VFR JN65 (x2)
195300  -3 2208  GM1TGY IV3VFR R-09 (x2)
195500  -2 2208  RW9QA IV3VFR R-21 (x10)
20m 
UTC    dB Audio  Message
055830  +5 2588  AH6HY IV3VFR JN65 (x5)
060200  +3 2558  SA5NTK IV3VFR R+00 (x2)

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

CW history is temporarily unavailable.

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee