SpooQy-1 4k8 GMSK2019年11月13日 20時34分

National University of Singapore
436.200MHz, 1kuns_pf decoder

NUDTSat ?2019年11月12日 20時42分

I've tried to hear NUDTSat several times recently
but I can't hear it at all. Is it already inactive?

2.4GHz Converter2019年11月11日 20時05分

Converter: GRX-2402D (MAKI Co., LTD.)
Receiving : 2400-2402MHz
Converting: 2400MHz -> 144MHz
Interface: NJ connector

  56.4 MHz * 40 = 2256.000MHz
  IF = 2400-2256 = 144.000MHz
       2401-2256 = 145.000MHz
       2402-2256 = 146.000MHz
  H70 x W160 x L200 (mm)
  Gain: 28dB or more
  200mA (+13.8V)

So, I think I can receive 2.4GHz signal,
but not receive 2.2GHz signal.

S-Meter readjustment2019年11月10日 19時09分

I readjusted S-Meter in SDR# plugin.

SDR Sharp Meters and Afedri

<add key="LevelMeter" value="SDRSharp.LevelMeter.LevelMeterPlugin,SDRSharp.LevelMeter" />


DTUsat-2 2.4GHz CW2019年11月10日 18時18分

I don't know why it can be heard only just after AOS.

AISTECHSAT-3 9k6 GFSK2019年11月10日 10時00分

1KUNS-PF decoder

Stomach ache2019年11月09日 18時55分

I slept all day because of stomach ache 
after eating too much.

Picosatellites Launch2019年11月08日 18時39分

Launch date: 25 Nov 2019
Launch vehicle: Electron KS
  Small liquid fueled orbital launch vehicle, which is
  being developed by Rocket Lab, a US/New Zealand company.
Launch site: OnS LC-1
  Onenui Station, Mahia, Wairoa, North Island, New Zealand

  Small demonstration satellite by Astro Live Experiences,
  which is to produce an artificial meteor shower, Japan

  Budapest University of Technology and Economics, Hungary
  437.175MHz, 12.5kbps GMSK, picosatellite

  Picosatellite developed by Fossa Systems, Spain
  436.700MHz, FSK RTTY 45 baud ITA2, 100mW 183Hz Shift and
  LoRa 125kHz, Chirp Spread Spectrum Modulation, 180 bps, 100mW

  NOOR 1A and 1B, also known Unicorn 2B and 2C mission
  are picosatellite developped by Alba Orbital, USA

  Budapest University of Technology and Economics, Hungary
  437.150MHz, 12.5kbps GMSK, picosatellite

  Picosatellite developed by My Radar, Germany
  437.075MHz, bandwidth 6kHz MFSK, CW

DTUsat-2 status2019年11月07日 22時35分


Re: DTUsat-2
To: Mineo Wakita
Date: Wed, 6 Nov 2019 20:51:27 -0500 (EST)


On many days, only one or two DTUSat-2 beacons at my QTH.

Today, 06-11-2019, first beacon did not transmit until 62 degrees
elevation just before TCA followed by 6 more full or partial beacons.
Yesterday, 05-11-2019, low pass with multiple beacons.

Attachment 1, 05-11-2019 at 5 degrees just before AOS.
              My antennas are only 2.4 meters above ground so signal
              was being received through buildings and trees. 
Attachment 2, 06-11-2019 at 71 degrees. Very strong signal.
Attachment 3, 06-11-2019 at 72 degrees. Very strong signal.
Attachment 4, 06-11-2019 at 52 degrees. Waterfall shows data
              burst after end of CW beacon.

Signal strength seems to be normally good. Beacons are very intermittent.
DTUSat-2 is a great signal to track on 2.4 GHz.

73, Mike (K9QHO)

> On November 3, 2019 at 5:25 AM Mineo Wakita
> Hello,
> I'm receiving very very weak signal in the past
> few days, only one or two 2.4GHz CW at AOS.
> JE9PEL, Mineo Wakita