YT1T — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Serbia Most frequent locator attributed to this token: JN94

Receiver-side FT8 activity involving YT1T, decoded by SO8OO in southeastern Poland. 1,514 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-01.

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 1,514 FT8 messages attributed to YT1T as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (52%), followed by 20 m (20%) and 80 m (15%). Most decodes (79%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

1,514
Messages attributed
27
UTC dates decoded
144
Active 15-min windows
-9 dB
Estimated median S/N

Bands

160m · 790 80m · 229 40m · 196 20m · 299
First attributed message: 2026-06-10
Last attributed message: 2026-10-01 20:14 UTC

Observed FT8 message patterns

Attributed sample
1,514 messages
Active dates
27 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-18 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 238, moderate (-15 to -9 dB) 579, strong (≥ -8 dB) 697.

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 YT1T 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 YT1T

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
JN94 · 388 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
640 km (approx.)
Last such locator decoded
2026-09-30 21:36 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 UTCBandYT1T S/NCounterpartCounterpart S/NMsgsCapture
10-01 20:10 80m +5 / - RD4CAF - / -15 8 Partial capture
10-01 18:57 40m - / - RA6OD -10 / - 3 Partial capture
10-01 18:55 40m - / -11 RU3GC +4 / - 2 ✓ Closing fragment
10-01 18:52 40m - / -19 R4CQ -8 / - 2 ✓ Closing fragment
10-01 18:35 80m +2 / - US1EA - / -14 9 Partial capture
10-01 18:27 80m - / -14 RA6BL +2 / - 2 ✓ Closing fragment
10-01 16:48 40m -12 / - RL6ZZ - / -13 12 Partial capture
10-01 16:28 40m -11 / - RA3RPW - / -23 9 Partial capture
10-01 16:17 40m -12 / -11 RN6HGI -1 / 0 9 ✓ Full exchange observed
10-01 16:12 40m - / 0 R6DOP -9 / - 4 ✓ Closing fragment
09-30 22:04 160m -10 / - 9A4ZM - / -17 2 Partial capture
09-30 22:02 160m - / -7 DK7ZT 0 / - 4 Partial capture
09-30 22:00 160m +2 / +1 HA8BE +7 / -18 5 ✓ Full exchange observed
09-30 21:37 160m -8 / - SV2JU - / -14 11 Partial capture
09-30 21:35 160m - / -8 DK7ZT 0 / - 3 Partial capture
09-30 21:24 160m -3 / -2 OM3PR +6 / -22 21 ✓ Full exchange observed
09-30 21:21 160m -3 / 0 IZ0BVU +13 / -21 8 ✓ Full exchange observed
09-30 21:15 160m -8 / -5 HB9BLQ -2 / -20 5 ✓ Full exchange observed
09-30 21:11 160m -8 / -13 SM2LIY +10 / -21 7 ✓ Full exchange observed
09-30 21:00 160m -11 / - OH3SR - / -21 12 Partial capture
09-30 20:53 160m -10 / - F5NZ - / -23 7 Partial capture
09-30 20:51 160m - / -15 DK7ZT -3 / - 5 Partial capture
09-30 20:45 160m -18 / -18 G4IRN +4 / -16 15 ✓ Full exchange observed
09-30 20:32 160m -12 / - US2YW - / -20 8 Partial capture
09-30 20:28 160m -11 / - IS0BOZ - / -22 2 Partial capture
09-30 20:19 160m -4 / -18 IS0BOZ -16 / -24 12 Partial capture
09-30 20:12 160m -5 / -5 SP3BPU +16 / -12 4 ✓ Full exchange observed
09-30 20:02 160m -7 / - 9A4ZM - / -20 4 Partial capture
09-30 19:59 160m - / - IK8INR -20 / - 3 Partial capture
09-30 19:58 160m - / - OZ2LIN -5 / - 2 Partial capture
09-30 19:55 160m - / -12 DK7ZT -6 / - 5 Partial capture
09-30 19:55 160m - / - RU3FM -3 / - 3 Partial capture
09-30 19:52 160m -10 / - DJ7M - / -15 2 Partial capture
09-30 19:43 160m -10 / - R6HV - / -20 15 Partial capture
09-30 19:41 160m -16 / -22 SM2LIY -1 / -23 7 ✓ Full exchange observed
09-29 21:40 160m -6 / - OE6AXG - / -20 10 ✓ Closing fragment
09-29 21:38 160m - / - IS0BOZ -11 / - 3 Partial capture
09-29 21:33 160m -9 / -21 IK0HBN +20 / -16 14 ✓ Full exchange observed
09-29 21:29 160m -10 / 0 IZ0BVU 0 / -20 6 ✓ Full exchange observed
09-29 21:25 160m -1 / - IU3SRT - / -20 3 Partial capture
09-29 21:05 160m -3 / - 5B4AMM - / -12 28 Partial capture
09-29 21:03 160m - / - EA5RR -10 / - 3 Partial capture
09-29 21:03 160m - / -16 IS0BOZ -6 / - 10 Partial capture
09-29 21:02 160m - / - HF5A +2 / - 4 Partial capture
09-29 20:59 160m - / - HF5A +14 / - 2 Partial capture
09-29 20:55 160m - / - DL5CG -3 / - 10 Partial capture
09-29 20:54 160m - / -16 IS0BOZ -8 / - 11 Partial capture
09-29 20:50 160m -10 / -5 IZ7NLJ +10 / -6 11 ✓ Full exchange observed
09-29 20:49 160m - / +1 DK7ZT -2 / - 2 Partial capture
09-29 20:46 160m - / - HF5A -5 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
183600  +0 1738  US1EA YT1T -14 (x7)
201030  -5 1739  RD4CAF YT1T -15 (x8)
40m 
UTC    dB Audio  Message
165045 -13 1775  RL6ZZ YT1T -13 (x7)
172415 -13 1775  R6ODC YT1T -09
185245  -8 1218  YT1T R4CQ R-19 (x2)
185545  +2 1052  YT1T RU3GC R-11 (x2)
185715  -7 1776  YT1T RA6OD KN97 (x3)
160m 
UTC    dB Audio  Message
214030 -12 1737  SV2JU YT1T -14 (x4)
220045  +4 1737  HA8BE YT1T -18
220100  +4 1252  YT1T HA8BE R+01
220115  +1 1737  HA8BE YT1T RRR
220130 +10 1252  YT1T HA8BE 73
220145  +2 1737  HA8BE YT1T 73
220200  +2 1736  YT1T DK7ZT -07 (x4)
220430 -11 1737  9A4ZM YT1T -17 (x2)
20m 
UTC    dB Audio  Message
092815  -9 2353  YT1T G4DBW JO01
092815 -12 1814  YT1T F4AWT JN24
092845 -21 1541  YT1T R1QD RR73
092945 -12 2353  YT1T G4DBW JO01
093145 -15 1814  YT1T F1PPH JN25 (x6)
105315  +2 1814  <...> YT1T JN94 (x3)
123645 -19 1813  R5GG YT1T JN94 (x2)
10m 
UTC    dB Audio  Message
094445 -21 1734  YT1T PE9JAN R+01
113445  -3 1291  YT1T SV7BAY KN21 (x2)
113615 -24 1868  YT1T DN9SIB JN49 (x2)
113845 -20 1827  YT1T LZ2VQ KN23
114945  -6 2685  YT1T F1PBZ -15
140145 -23 1637  YT1T RV6HE -07
141145 -19 1513  YT1T IZ8UVU JN70 (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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