K1HC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN53

Receiver-side FT8 activity involving K1HC, decoded by SO8OO in southeastern Poland. 1,306 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 38 UTC dates in the available aggregate history. Observed between 2026-06-18 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 1,306 FT8 messages attributed to K1HC as the transmitting token by decoded message structure across 38 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (41%), followed by 20 m (37%) and 80 m (22%). Most decodes (93%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

1,306
Messages attributed
38
UTC dates decoded
129
Active 15-min windows
-9 dB
Estimated median S/N

Bands

80m · 289 40m · 539 20m · 478
First attributed message: 2026-06-18
Last attributed message: 2026-10-09 00:36 UTC

Observed FT8 message patterns

Attributed sample
1,306 messages
Active dates
38 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-19 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 299, moderate (-15 to -9 dB) 402, strong (≥ -8 dB) 605.

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 K1HC 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 K1HC

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
FN53 · 414 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
6,521 km (approx.)
Last such locator decoded
2026-10-09 00:34 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 UTCBandK1HC S/NCounterpartCounterpart S/NMsgsCapture
10-09 00:34 40m -16 / - M0XXD -16 / -8 5 ✓ Full exchange observed
10-09 00:31 40m -11 / - PA3DTN - / -9 3 ✓ Closing fragment
10-09 00:28 40m -18 / - 8P6ET - / -22 3 ✓ Closing fragment
10-09 00:26 40m -5 / - UW8SM - / -1 2 ✓ Closing fragment
10-09 00:25 40m -12 / -1 CT3IQ -10 / -3 6 ✓ Full exchange observed
10-09 00:24 40m -8 / - YO9PH - / -13 3 ✓ Closing fragment
10-09 00:23 40m -16 / - SQ8AZT - / -8 2 ✓ Closing fragment
10-09 00:18 40m - / -5 MW0USK +4 / - 2 ✓ Closing fragment
10-09 00:09 40m -13 / - ON5WR - / -2 3 ✓ Closing fragment
10-09 00:08 40m -12 / -4 TA2VUZ -21 / -16 5 ✓ Full exchange observed
10-09 00:04 40m -8 / - SP7TF - / -3 3 ✓ Closing fragment
10-09 00:04 40m -8 / - F5OZK +2 / +3 4 Partial capture
10-09 00:02 40m -7 / - J48S - / -6 3 ✓ Closing fragment
10-08 23:58 40m -8 / - II5GG - / +1 3 ✓ Closing fragment
10-08 23:57 40m -11 / - RU3KV - / -14 3 ✓ Closing fragment
10-08 23:55 40m -15 / - EA4PS -17 / - 3 ✓ Closing observed
10-08 23:54 40m -13 / - VO1FE - / -8 4 ✓ Closing fragment
10-08 23:52 40m -9 / - LZ2PAJ -5 / -13 4 ✓ Closing observed
09-30 00:55 40m -1 / - DG3YEV - / -6 4 ✓ Closing fragment
09-30 00:50 40m -1 / - EW8AAC - / -13 5 ✓ Closing fragment
09-30 00:48 40m -5 / -4 UN0GY -10 / -14 8 ✓ Full exchange observed
09-30 00:44 40m -12 / - VP8AWU - / - 2 Partial capture
09-30 00:43 40m -9 / - F6FDY -1 / -2 4 ✓ Closing observed
09-24 03:07 40m -15 / - ON3CL - / -4 5 ✓ Closing fragment
09-18 02:45 40m +2 / - EW6FL - / +6 2 ✓ Closing fragment
09-18 02:44 40m +2 / +4 R6DZL +6 / +5 5 ✓ Full exchange observed
09-18 02:43 40m +1 / - W1AW/1 - / -6 2 Partial capture
09-18 00:52 40m -2 / - VA3TPS - / -9 2 ✓ Closing fragment
09-18 00:49 40m -5 / - N4MPH - / -5 4 ✓ Closing fragment
09-18 00:46 40m -8 / - SP5HZM - / -8 2 ✓ Closing fragment
09-18 00:44 40m -7 / -12 SV1AIQ 0 / -19 6 ✓ Full exchange observed
09-18 00:43 40m -8 / - RW9ULK - / - 2 Partial capture
09-18 00:42 40m -8 / - VU2SW - / -4 2 ✓ Closing fragment
09-18 00:40 40m -6 / - RW3FY - / -13 3 ✓ Closing fragment
09-18 00:39 40m -6 / -10 RX6AOB 0 / +3 5 ✓ Full exchange observed
09-18 00:36 40m +4 / - IU3WNU - / -14 2 ✓ Closing fragment
09-18 00:35 40m +2 / - LA8ENA - / -3 3 ✓ Closing fragment
09-18 00:34 40m - / +9 VU2SW -6 / - 7 Partial capture
09-18 00:33 40m -1 / - UR8MB - / -2 3 ✓ Closing fragment
09-18 00:25 40m -1 / - DL7VAR - / +4 2 ✓ Closing fragment
09-18 00:22 40m -2 / -14 JY5IB -24 / -20 4 ✓ Full exchange observed
09-16 02:05 80m +3 / -5 VP2MAA -18 / +7 5 ✓ Full exchange observed
09-08 01:27 40m +4 / - SP100PKP - / +4 4 Partial capture
09-08 01:23 80m - / - DL3MIB +8 / - 7 Partial capture
09-08 01:19 80m -16 / -16 OZ1KZX +6 / -13 5 ✓ Full exchange observed
09-08 01:17 80m -12 / -13 DL5DQZ -2 / -24 8 ✓ Full exchange observed
09-08 01:07 80m -18 / -16 RC6OU +15 / - 4 ✓ Closing observed
09-08 01:05 80m -6 / -7 SP6JIU +6 / -2 3 ✓ Full exchange observed
09-08 00:56 80m -24 / -17 G0ORC -4 / -11 5 ✓ Full exchange observed
09-08 00:56 80m - / - 9A7KWS -5 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
002615 -12 1053  CT3IQ K1HC RR73
002630 -12 1032  K1HC CT3IQ 73
002645  -5  563  UW8SM K1HC -01 (x2)
002815 -18 1505  8P6ET K1HC FN53 (x3)
003130 -11  685  PA3DTN K1HC FN53 (x3)
003430 -16 2201  M0XXD K1HC FN53
003515 -19 2353  K1HC M0XXD +18
003530 -14 2201  M0XXD K1HC R-08
003545 -13 2353  K1HC M0XXD RRR
003600 -17 2201  M0XXD K1HC 73
80m 
UTC    dB Audio  Message
012000  +4 2256  K1HC OZ1KZX RR73
012015 -20 1850  OZ1KZX K1HC 73
012230 -22 1849  8R1TM K1HC R-11
012315  +8 1034  K1HC DL3MIB JN57 (x7)
020530  +3  746  VP2MAA K1HC FN53
020545 -18 1081  K1HC VP2MAA -05
020600  +0  747  VP2MAA K1HC R+07
020615 -18 1080  K1HC VP2MAA RR73
020630  +7  747  VP2MAA K1HC 73
160m 
UTC    dB Audio  Message
012700  +7 2302  K1HC GW8DX -16 (x2)
20m 
UTC    dB Audio  Message
205000  +1 2364  SP4FCA K1HC 73
205000  -5  720  K1HC PA8S JO32
205030  -1 2364  YO9ZIP K1HC R+00
205030  +0  720  K1HC PA8S JO32
205100  -3 2364  YO9ZIP K1HC 73
205130  -3  721  K1HC PA8S JO32
205130  +0 2364  CT8ACA K1HC FN53
205200  -2  721  K1HC PA8S JO32
205245  -8 1220  PA8S K1HC +01 (x2)
205345  -2  785  4O7CC K1HC FN53 (x2)
205500  +0 2348  IW5ABF K1HC -08 (x2)
205600 -15 1996  K1HC 4O7CC -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.

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