SP9IMY — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

288 messages

Active dates

11 UTC dates

Estimated median S/N

-4 dB

Estimated 10th-90th percentile

-16 to +8 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 29, moderate (-15 to -9 dB) 86, strong (≥ -8 dB) 173.

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 SP9IMY 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 SP9IMY

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

JO90 · 95 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

208 km (approx.)

Last such locator decoded

2026-09-18 17:08 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.

Recent FT8 messages decoded at SO8OO

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

UTC    dB Audio  Message
171300  +7 2437  CQ SP9IMY JO90                        a1
171330  +7 2438  R3DHP SP9IMY -10 (x3)
170730  +8  741  CQ SP9IMY JO90 (x2)
170815  -9  739  SP9IMY IU4PPL JN54
170815  -1 2709  SP9IMY HF5A JO92
170830 +10  741  IU4PPL SP9IMY -20 (x2)
170915  -7 2335  SP9IMY S51PV JN76
170915  -7  740  SP9IMY IU4PPL R+05
170930  +9  741  IU4PPL SP9IMY RR73
170945  -8  740  SP9IMY IU4PPL 73
171045 -11  351  SP9IMY DL3IAK JN49

UTC    dB Audio  Message
173800  -4 1548  CQ SP9IMY JO90                      ? a1
173830  -9 1548  <R1943OD> SP9IMY +13 (x2)
173915  +9 2653  SP9IMY R1943OD R-14 (x2)
174100  -2 2654  UN3P SP9IMY -09 (x8)
175200  +9 1647  RA9CUU SP9IMY -09 (x2)

UTC    dB Audio  Message
072015 +12 1401  SP9IMY RX3ASQ 73
072015  -2  918  SP9IMY F1IQH JN27 (x2)
140400  -5 2502  SP9IMY M7PHE IO93 (x3)
141045 -12 2177  SP9IMY DJ7XY JO31
141800  -3 2373  SP9IMY F4HTV JN25
142130 -12 2297  SP9IMY M7PHE R-01 (x2)
142345  -4 1221  SP9IMY 2E0MBH R-09 (x2)
142745  -8 1689  SP9IMY F5OYA/P R-06
143015 -21 2020  SP9IMY UD8S R-19 (x2)

UTC    dB Audio  Message
105145 -21 1287  SP9IMY DL1UDO R-16
105915 -17 1591  SP9IMY IV3VFP JN66 (x2)
111045 -21 1719  SP9IMY DJ3HW 73
074630 -23 2119  SP9IMY DJ2PW R-01 (x2)
075000 -22 1693  SP9IMY IK4TVP -12 (x4)
080700 -18 2118  SP9IMY DN9TB JO41 (x4)
081600  -6  578  SP9IMY IK4JPP JN54

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.