Posts by oh2uds

  • IC-905 with 2.4GHz and more....

    Hi Alex,


    You're right.... I would like to keep the hope that in this Software based radio they have the hardware in place but the software is limiting :)

    I am chasing for the service manual to see what the hardware side looks like, BEFORE OPENING IT :)


    I am really suprised that both 705 and 905 don't have the transverter frequency display function :(




    73's de TA7W/OH2UDS

    Baris

  • IC-905 with 2.4GHz and more....

    Quote from DB2OS

    Nice, but unfortunately not usable for satellite operation as a standalone unit - not full-duplex.

    I was impressed with the frequency coverage of IC-905 and bought one this summer....


    It's the easy way to access higher bands where I had a lot of up/down converters and amplifiers in my setup (also pluto SDR with a lot of additional hardware) all replaced with this single unit....


    But, as Peter mentioned not having a dual watch capability is a bit limiting factor on practice... even on QO-100 with a modified LNB (directly IF to 70/13cm) its not easy to use, somehow I am used to full-duplex mode on satellite operation....


    I didn't have a chance to go through the schematics to see if this SDR radio can have a split full-duplex capability (transmitting on one band/antenna while receiving on other band/antenna)... But if ICOMreleases a firmware that can add this capability, this radio will be an EXCELLENT Satallite radio for LEO/GEO satellites as well.....


    Anyway, having access to higher bands easily for tetsing some homebrew is a good capability as well....

    Maybe we can push a few feature requests to ICOM like;

    - dual/split watch

    - DATV (at least with low symbol rates)

    - Xverter frequency display (I believe this is a missing must for IC-705/IC-905 to be used as IF radio)


    Does anybody have the maintenance/service manual or schematic details of IC-905 ?


    73's de TA7W/OH2UDS

    Baris Dinc

  • Portable QO-100 Transceiver

    Yes, I know that I was in the SSB part, because I was trying to show my friends from TA there I can get on to the bird with a minimal station.. Then while having the QSO with you I implemented the CW messenger on the radio (arduino).... I was not using a keyer but arduino code to transmit.. That's why I was late answering your.. Each reply I sent you, I had to compile it into the code and retune to the frequency...


    after your QSO I implemented/completed the CW message memories and storing/retrieving memory channels :)



    best regards and 73's

    de OH2UDS / TA7W

    Baris

  • Portable QO-100 Transceiver

    Yess... and i am back again..

    Last night I did some experiments for the transmission part of out tiny project.

    I was able to accomplish a CW QSO with DF2ET df2et


    My setup was

    - an arduino + lcd + a keypad

    - adf4531 frequency generator

    - SKT65xx 1W amplifier

    - 30Meters of RF cable

    - a poty with dish

    - an arduino sketch based on F1CJN and Guido's (uSDX) code


    Current capabilities

    - Can generate 2.4GHz uplink signals (1Khz steps for now, can go below as well)

    - Have memory save/recall capabilities (10 channels)

    - Have 10 CW message memory tha t you can shoose from menu and transmit

    - 1 watt (guestimate) output

    - works with 5V USB


    Later to come soon:

    - port GUIDO's SSB approach from uSDX and si5351 to ADF4531



    73's de OH2UDS / TA7W

    Baris

  • QO-100 ACTIVITY IN TURKEY (28 MAY 2022)

    Activity Announcement

    Dear HamRadio Friends,

    We, a group of Turkish Radio Amateurs, prepared an activity to be online on QO-100 Transponder with a special activity permission from Turkish Authorities on 28 May 2022 (2.4GHz hamradio band is not active in Turkey).

    We will activate a field-day/dx-pedition station in Maltepe/Istanbul at KN40nx. Our plan is to be more than 100 operators active on QO-100 SSB and DATV starting at 05:00 UTC until the end of the day 00:00 UTC.

    The activity will also include demonstration of 10GHz QSO, AMPR/AREDN and also will be active on HF/VHF/UHF as well.

    The callsign of the activity will be TC100QO, hope to catch you all on the satellite.



    73's de TA7W/OH2UDS

    Baris Dinc

  • QO-100 Activity in Turkey (28 May 2022)

    Activity Announcement

    Dear HamRadio Friends,

    We, a group of Turkish Radio Amateurs, prepared an activity to be online on QO-100 Transponder with a special activity permission from Turkish Authorities on 28 May 2022 (2.4GHz hamradio band is not active in Turkey).

    We will activate a field-day/dx-pedition station in Maltepe/Istanbul at KN40nx. Our plan is to be more than 100 operators active on QO-100 SSB and DATV starting at 05:00 UTC until the end of the day 00:00 UTC.

    The activity will also include demonstration of 10GHz QSO, AMPR/AREDN and also will be active on HF/VHF/UHF as well.

    The callsign of the activity will be TC100QO, hope to catch you all on the satellite.



    73's de TA7W/OH2UDS

    Baris Dinc

  • OPENATV QO-100 WB Spectrum Plugin

    OE6MUE Thanks for the info.. I real;;y spent sometime to see the difference... You have very good cats... Good eyes...

    Only by putting the spectrums on the top of each other, I managed to see the difference...

    I get this as a BUG request and on the way of fixing..



    Thanks

    Baris DINC

    OH2UDS/TA7W

  • Portable QO-100 Transceiver

    And this is the second video with ADF4351 as a 1.1GHz Local Oscillator...


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    My goal for this weekend is to have it all in a tiny box....


    Baris

    OH2UDS/TA7W

  • Portable QO-100 Transceiver

    Hi all,

    A few months ago I started a Portable QO-100 transceiver project. I already presented it on Opensat Cubesat Workshop 2020.

    The project is going on very slow but there are some improvements that I wanted to share here so we can maybe continue on the project with all your help.


    A brief description about the project can be found in the following presentation :

    https://github.com/barisdinc/S…reOSCW2020_barisdinc.pptx



    Now here is a working demo for the reception part.

    https://youtu.be/ttV4EAqNRC4


    73's de TA7W/OH2UDS

    Baris



  • OPENATV QO-100 WB Spectrum Plugin

    Hi All,


    I was very busy this week at work, so I didn't have time to work on this plugin when I am at home....


    For the frequency definitions I was planning to make it hard coded into the plugin that people can modify if needed.

    But then I decided to make it a predefined transponder and satellite channels (bouqet) definition and add it to system when installed. This way everybody can go and edit transponder/bouqets according to their setup.


    e.g if they are using a modified LNB or a different IF frequency. (like Michel's hb9dug situation)


    Any comments on this are welcome...

  • OPENATV QO-100 WB Spectrum Plugin

    maybe you are using a version that has "more" bugss.... wait for a while, I will do a new release..

  • OPENATV QO-100 WB Spectrum Plugin

    looks like the device is not able to do domain name translation.. Please chack that your box has a valid DNS entry and a proper connection.. you can try to ping servers from your box

    for example:


    ping eshail.batc.org.uk

  • OPENATV QO-100 WB Spectrum Plugin

    Quote from hb9dug

    oh2uds


    Does your plugin use a satellite profile ? If Yes which one ?


    73 de Michel, HB9DUG


    No it does not use any satellite profile. The spectrum is coming from BATC services via websocket.

    I have my own frequency definition inside the code (frequencies, etc.) to make it portable on any settopbox..... But not sure if I will need a satellite definition/transponder definiiton somehow.. I will inform you back soon



    73'de TA7W/OH2UDS

    Baris DINC

  • OPENATV QO-100 WB Spectrum Plugin

    Hi Mike,


    Its inte=resting that I still see PYTHON 2.7 in your logs, where I am pretty sure that OPENATV 7 is based on Python 3


    I only have /usr/lib/python3.9 folder on my sf8008 :(


    Can you send me a picture of Information/About screen...

  • OPENATV QO-100 WB Spectrum Plugin

    OE3GBB


    can you copy the output of the "opkg list | grep websocket" command.. it should look like something like this :


    libqt5websockets-mkspecs - 5.15.2+git0+f73735911b-r0 - qtwebsockets version 5.15.2+gitAUTOINC+f73735911b-r0

    qtwebsockets version 5.15.2+gitAUTOINC+f73735911b-r0.

    libqt5websockets-plugins - 5.15.2+git0+f73735911b-r0 - qtwebsockets version 5.15.2+gitAUTOINC+f73735911b-r0

    qtwebsockets version 5.15.2+gitAUTOINC+f73735911b-r0.

    libqt5websockets-qmlplugins - 5.15.2+git0+f73735911b-r0 - qtwebsockets version 5.15.2+gitAUTOINC+f73735911b-r0

    qtwebsockets version 5.15.2+gitAUTOINC+f73735911b-r0.

    libqt5websockets5 - 5.15.2+git0+f73735911b-r0 - qtwebsockets version 5.15.2+gitAUTOINC+f73735911b-r0

    qtwebsockets version 5.15.2+gitAUTOINC+f73735911b-r0.

    python3-websocket-client - 1.2.1-r0 - websocket client for python

    websocket-client module is WebSocket client for python. This provide the



    Question: The machine should be connected to internet.


    Baris Dinc

    OH2UDS/TA7W