07:23-07:35 UTC, 23 OCT 2016, Ele 39 W-S-SE, 2400.300MHz 100kbps BPSK I confirmed today for the first time the 'Milky Way'that is between 100kHz width using SDR#1489 software in the 4th figure of the following stream. Center carrier after 2 min. from AOS ... 61023h01.wav Uupper_sideband after 6 min. from AOS ... 61023h02.wav [Supplement] How to set SDR#1489 to target HORYU-4 S-band (2400.300MHz) (1) Set the exact value of 'Frequncy correction(ppm)' in SDR#-Configure. This value is held in SDR# after setting once. http://www.ne.jp/asahi/hamradio/je9pel/aprs_9k6.htm#fcd2 (2) Drag the vertical red line in the upper part of Spectrum screen to the center. (3) Select the triangle fixed button (Center tunig) in SDR#. (4) Set the upper frequency of SDR# to 144.300.000 of the vertical red line. (5) Zoom up to the appropriate (+/- 100kHz width) using the zoom bar in SDR#. (6) Set and check 2,256,000,000 on the left side of the Shift box in SDR#. (It is set in the converter of '2,400.000MHz -> 144.000MHz'.) http://www.ne.jp/asahi/hamradio/je9pel/dtusat_4.htm#shift (7) Chenge the upper frequency in SDR# to 2400.300.000 of the vertical red line. (8) Change to the triangul free button (Free tuning) in SDR#. (9) Move to change by clicking on the displaying frequency, or, drag the center vertical red line to near 2.400.350.000. (10) Start SDR#. (11) Gradually move the vertical red line to the left together Doppler shift. (12) or, make automatic tracking the frequency using 'Orbitron + DDE_Tracker'. http://www.ne.jp/asahi/hamradio/je9pel/sdrshdd3.htm Orbitron run -> SDR# run and start -> DDE Tracking Cliant Options: Orbitron -> Connect -> Orbitron DDE run -> SDR# automatic tracking frequency (13) The following are the figure that I have actually received HORYU-4 S-band. HORYU-4 2.4GHz heard again 10:09-10:21 UTC, 1st Dec 2016, Ele 44 WS-S-N, 2400.300MHz USB HORYU-4 2.4GHz doppler shift 11:50-12:03 UTC, 1st Dec 2016, Ele 42 WS-S-E http://www.dropbox.com/s/4y7jng6u62wrlh3/61201h25.wav?dl=0 I recorded the signal on the right side of the figure below. Unfortunately, 2.4GHz signal from HORYU-4 is transmitted only over Japan with the ground station.
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