HR2.0 - Installing HamPi on a Livestream with W3DJS

Discussion in 'Amateur Radio News' started by KC5HWB, Jul 12, 2020.

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  1. KC5HWB

    KC5HWB Ham Member QRZ Page

    This is a Livestream that I recorded with Dave, W3DJS, the creator of the HamPi image for Raspberry Pi that includes many useful Ham Radio apps!

    Raspberry Pi 4 Kit: https://amzn.to/3138cqh

    HamPi GitHub: https://github.com/dslotter/HamPi/
    HamPi Direct Downloads:
    US Callsign Alpha Prefix download here: https://bit.ly/HamPi_1_0-W3DJS
    US Callsign Kilo Prefix download here: https://bit.ly/HamPi_1_0-WA4ZXV
    US Callsign November Prefix download here: https://bit.ly/HamPi_1_0-N5XMT
    US Callsign Whiskey Prefix download here: https://bit.ly/HamPi_1_0-KE8OHG
    All other Prefixes download here: https://bit.ly/HamPi_1_0-VE4VR


    [COLOR=rgba(0, 0, 0, 0.87)][/COLOR]
     
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  2. PU2OZT

    PU2OZT Ham Member QRZ Page

    Thank you, the clever way to go digital.
    Oliver
     
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  3. KA1YBS

    KA1YBS XML Subscriber QRZ Page

    Very cool.

    I've rolled my own "Ham Pi" recently, works FB on weak signal and basic logging, but this one has a million apps, Going to flash a spare microSD and check it out.

    FWIW, the image will use your unused CPU cycles for radio astonomy (ala S.E.T.I.) purposes. It is disclosed in the README.

    Not sure how that affects battery life... I am still eager to try this out.

    Thanks!
     
    Last edited: Jul 14, 2020
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  4. N5ZKK

    N5ZKK Premium Subscriber QRZ Page

    This along with my AOL CDs will be supporting my coffee cup for years to come!
     
  5. AA5H

    AA5H Premium Subscriber QRZ Page

    Best add-on for the HamPi, especially for Digital Modes and Satellite Tracking is the $60 GPS hat that plugs directly into the GPIO bus on the Pi:

    https://www.amazon.com/gp/product/B00S7FAJC4/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

    Shown here (the Blue PC Board) plugged into the Pi
    [​IMG]

    For $60, and 30 minutes of time following simple Debian programming instructions available on YouTube you
    can have your own STRATUM ONE time server, the Hat synchronizes time with satellite constellations (via included window
    antenna) and passes PPS Pulses (at STRATUM 1) to feed the PI's Real-Time Clock. Take another 20 minutes to configure
    an NTP Server and pass STRATUM 2 clock signals to your entire network.

    It's amazing how small and inexpensive these units have become. In the military we needed precise timing to synchronize our comm/crypto gear, the units were fed by PPS pulses produced by Huge Cesium clocks the size of a small refrigerator. The Cesium clocks are gone from the scene, we now install GPS based clocks at military bases; while the physical footprint has been reduced to the size of DVD player, the commercial GPS versions still cost upwards of $20K, mostly due to the downlink encryption

    With the PI + GPS HAT I have the near-equivalent accuracy of WWV on all NTP devices in my shack, and only for $60! Ensure that the GPS Hat board you purchase supports PPS, it's not always clear in the listings.
     
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  6. KC5HWB

    KC5HWB Ham Member QRZ Page

    Congrats for being the first Grumpy Old Man in the group. 73!
     
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  7. K5CG

    K5CG Ham Member QRZ Page

    I found Ham Pi to be half-baked. It's missing dependencies (jq and yad) for patmenu, maybe others. I decided to roll my own.
     
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  8. KC5HWB

    KC5HWB Ham Member QRZ Page

    I'd be interested to see that when you are done. You might also check KM4ACK's build that he does.
     
  9. K5CG

    K5CG Ham Member QRZ Page

    I really only wanted a couple of apps from the huge list that HamPi has, so my build is nothing special. YAAC for APRS, pat for Winlink Packet, direwolf for pat and YAAC, then fldigi for FSQ - all focused on VHF operation.
     
    Last edited: Jul 16, 2020
  10. N5AQM

    N5AQM Ham Member QRZ Page

    My Pi 4 4gb will be here today. Ham Pi has stability issues on a pi3 but Dave has mentioned it in one of his talks. Friend running it on a pi4 doesn't have the issues I am seeing with WSJT-x. Plan on using it for WSPR, FT8 and Sat tracking. There is another guy out there KM4ACK who has a good discussion group and support for what he is doing as well as numerous Youtube videos covering his build methodology. (different from Ham Pi)

    -73
    -Mike
     
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