We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable in your locale.

Author Topic: UNID RTTY on 4201 KHz  (Read 210 times)

Offline kf7ely

  • Newbie
  • *
  • Posts: 11
    • View Profile
UNID RTTY on 4201 KHz
« on: April 14, 2018, 0941 UTC »
Service: UNID RTTY
Frequency: 4201 KHz RTTY mode
Time: 08:40 utc, 14 April 2018
Signal: S 9 with fading
Software: FlDigi ver. 4.0.13
Carrier Shift: 200 Hz
Baud Rate: Unknown, 75 gave the best results but still gibberish
Bits per character: 5
Parity: none
Stop bits: 1.5

Mostly the signal was in idle but once in a while the carrier would spit out some letters/numbers for a few seconds and then back to idle.
IC-7200, AT2KD differential tuner
250 ft homebrew horizontal loop antenna @ 12 ft agl
Prineville Oregon, USA

Offline sat_dxer

  • Hero Member
  • *****
  • Posts: 538
    • View Profile
Re: UNID RTTY on 4201 KHz
« Reply #1 on: April 16, 2018, 1952 UTC »
 NAVTEX alternate freq on 4 MHz (4209.5 kHz)
Most times & frequencies posted are only an approximation.
Due to the insubstantiality of any “control list” its best avoided and never used.
-30-