KA4JRY — 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: United States Most frequent locator attributed to this token: EM83

Receiver-side FT8 activity involving KA4JRY, decoded by SO8OO in southeastern Poland. 168 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-08.

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 168 FT8 messages attributed to KA4JRY as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (99%), followed by 40 m (1%). Several six-hour UTC windows tied for the largest share (98%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

168
Messages attributed
10
UTC dates decoded
24
Active 15-min windows
-9 dB
Estimated median S/N

Bands

40m · 2 20m · 166
First attributed message: 2026-06-12
Last attributed message: 2026-09-08 04:40 UTC

Observed FT8 message patterns

Attributed sample
168 messages
Active dates
10 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-19 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 42, moderate (-15 to -9 dB) 49, strong (≥ -8 dB) 77.

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 KA4JRY 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 KA4JRY

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
EM83 · 49 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,164 km (approx.)
Last such locator decoded
2026-09-08 04:37 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 UTCBandKA4JRY S/NCounterpartCounterpart S/NMsgsCapture
10-18 04:25 40m - / - HI3LER -12 / - 2 Partial capture
10-18 04:25 40m - / -23 IQ4JO -17 / - 4 ✓ Closing fragment
10-05 03:26 40m - / - DL3FBI -16 / - 2 Partial capture
10-05 02:55 40m - / -10 YO9BPX -13 / - 2 Partial capture
10-05 02:05 40m - / - OK1DXR +6 / - 3 Partial capture
09-29 04:57 40m - / - LZ3QC +3 / - 7 Partial capture
09-29 04:56 40m - / -9 F1PBZ 0 / - 4 Partial capture
09-29 04:45 40m - / -19 M0CKX -13 / - 4 ✓ Closing fragment
09-29 04:39 40m - / - LZ2KV +10 / - 2 Partial capture
09-29 04:39 40m - / -1 F4ELU -4 / - 2 Partial capture
09-29 04:35 40m - / -5 F4EGM -1 / - 3 ✓ Closing fragment
09-29 03:59 40m - / -18 GM6URC -19 / - 2 ✓ Closing fragment
09-29 03:41 40m - / +4 F4DIA -6 / - 2 ✓ Closing fragment
09-09 05:40 80m - / -13 F4HQB -23 / - 3 ✓ Closing fragment
09-09 05:37 80m - / -9 F5NLY -24 / - 4 ✓ Closing fragment
09-09 05:36 80m - / - OO9A -24 / - 3 Partial capture
09-09 05:14 40m - / -16 9A3AUH +8 / - 7 ✓ Closing fragment
09-08 04:38 40m - / - YO4SX -18 / - 3 Partial capture
09-08 04:26 40m - / -16 IK2VFW -22 / - 2 Partial capture
09-08 04:24 40m - / -15 IW9HII -13 / - 3 Partial capture
09-08 04:06 40m - / - EA3IZF -16 / - 2 Partial capture
08-26 02:12 20m -19 / - K6IRK - / -7 3 ✓ Closing fragment
08-26 02:10 20m -16 / - K5WKH - / - 2 ✓ Closing fragment
08-26 01:46 20m -7 / - 4L1AX - / -19 3 ✓ Closing fragment
08-24 20:42 20m -18 / -4 IS0KNO -9 / -9 5 ✓ Full exchange observed
08-24 20:33 20m - / -10 MW1CFA -8 / - 8 Partial capture
08-24 20:32 20m - / - YT1DDL +7 / - 3 Partial capture
08-24 20:28 20m - / -14 IV6VNY -11 / - 3 Partial capture
08-23 03:56 20m - / - UA3IQC -14 / - 2 Partial capture
08-23 03:54 20m - / - UR5HAN -4 / - 2 Partial capture
08-23 03:14 20m - / -18 UB8CPH -9 / - 3 Partial capture
08-22 03:31 20m - / -18 R9FAI -5 / - 6 ✓ Closing fragment
08-22 03:29 20m -17 / - RA6MQ - / -1 3 ✓ Closing fragment
08-19 23:25 20m - / - DL1EDR -12 / - 2 Partial capture
08-17 00:09 20m - / - DH2RL -8 / - 3 Partial capture
08-13 21:36 20m - / - IT9KHI -3 / - 3 Partial capture
08-07 01:46 20m - / - PD0RCQ -16 / - 2 Partial capture
08-07 01:27 20m - / - DL1R +5 / - 7 Partial capture
08-07 01:27 20m - / -16 IU3WNU -5 / - 3 Partial capture
08-07 01:25 20m - / -7 F1PBZ -11 / - 2 Partial capture
08-05 04:31 20m -16 / - UT0CK - / - 2 ✓ Closing fragment
08-05 04:26 20m -18 / -16 TA2ANK -16 / -4 6 ✓ Full exchange observed
08-05 04:16 20m -21 / - TA3F - / -12 2 Partial capture
08-05 04:01 20m - / - UA3VVA -19 / - 7 Partial capture
08-05 03:57 20m - / -13 RU6UR -12 / - 4 Partial capture
08-05 03:46 20m - / -18 R3RAQ -4 / - 4 ✓ Closing fragment
08-05 03:27 20m - / -13 R3RAQ 0 / - 2 ✓ Closing fragment
08-03 03:52 40m - / -7 F1PBZ -16 / - 2 Partial capture
08-02 02:16 20m -16 / - G4RYE - / -19 3 Partial capture
08-02 02:15 20m -18 / - NE5TX - / +6 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
050615 -14 1593  KA4JRY IK0WCL -17
020545  +7 1335  KA4JRY OK1DXR JO60 (x3)
025545 -15 1699  KA4JRY YO9BPX KN24 (x2)
030315 -10 2740  KA4JRY IW0RLC JN63
032645 -16 2166  KA4JRY DL3FBI JO40 (x2)
042530 -14 2058  KA4JRY IQ4JO JN63
042530 -11  536  KA4JRY HI3LER FK49
042600 -23 2058  KA4JRY IQ4JO R-23
042600 -12  536  KA4JRY HI3LER FK49
042630 -14 2058  KA4JRY IQ4JO R-16 (x2)
80m 
UTC    dB Audio  Message
053500 -24 1505  KA4JRY F4HQB JO10
053600 -24 1960  KA4JRY OO9A JO20
053600 -23 2469  KA4JRY ON7HM JO10
053630 -24 1960  KA4JRY OO9A JO20 (x2)
053700 -24 1152  KA4JRY F5NLY JN08 (x4)
054030 -21 1505  KA4JRY F4HQB JO10 (x3)
054630 -24 1210  KA4JRY ON8PR JO20
20m 
UTC    dB Audio  Message
204315  -4 1605  KA4JRY IS0KNO R-04
204330 -18 1549  IS0KNO KA4JRY RR73
204345 -11 1604  KA4JRY IS0KNO 73
204400 -18 1548  WG2W KA4JRY RR73
014615 -14  881  4L1AX KA4JRY R-19 (x3)
014915 -16  881  KI6BWO KA4JRY -03
020915 -19 1558  K6IRK KA4JRY -20
021045 -18 1558  K5WKH KA4JRY EM83 (x2)
021215 -13 1558  CQ KA4JRY EM83
021245 -22 1558  K6IRK KA4JRY -07 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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