DRT 154 - 20180329

Thursday Night D-STAR Round Table. Join us on reflector XRF002A, XRF310A and XRF555A 7:00pm PDT weekly.


You can find the shout box show notes on D-STAR Round Table Board

Shoutbox History


 

W5ZIT: Has anyone succeeded in interfacing a device like the Internet Labs PC Access Dongle or equivalent to a standard FM radio through the 1200 Baud packet port? If so, how was the COS signal from the radio used to key the D-Star signal into the transmit mode

 

W5ZIT: Also, how was the PTT to the radio derived?

 

N6HKH: New Icom ID-31A/E "PLUS" D-STAR HT www.icomamerica.com/en/products/amateur/handheld/id31aplus/default.aspx

 

N6HKH: New Uniden SDR handheld scanner SDS100 www.uniden.com/newsroom/press-releases/sds100-coming-soon/

 

W6KD: The openspot is on sale direct from www.sharkrf.com for $117 (95 Euro) plus shipping. It's still $200 from HRO

 

N6HKH: G4KLX and KI6ZUM's opinions can be found here: d-star-roundtable.boards.net/thread/332/illegal-mmdvm-copies-zumspot-clones

 

W6KD: @w5zit...DStar is sent over RF modulated as 4800bps GMSK, not as 1200 bps AFSK, which is what you'd get by applying a digital keying signal to an FM radio's 1200 bps packet port. Don't think it's remotely possible to make it work the way you've described

 

wc6q: The guys that make the original MMDVM_HS_HAT are, Flo DF2ET Twitter: @flo_0_ and Mathis Schmieder Twitter: @db9mat their contention is that these boards are open source therefore cannot be profited from anyone else except for them.

 

wc6q: If you want to build your own MMDVM_HS_HAT, they provide the resources/BOM to do it here. github.com/mathisschmieder/MMDVM_HS_Hat You just cannot build and sell.

 

W5ZIT: Bob, I think you missed my point. The Internet Labs PC Access Dongle device has normal audio input and output, not digital. The device does the conversion from analog to digital. A simple handheld (even a Baofeng) could be used to access D-Star.

 

WA6JF0: Hello

 

WA6JFKAY: Hmmm, my call does not work

 

W6KD: @w5zit--I'm looking at one right now...USB interface only, converts between PCM and AMBE+ digital streams...no analog processing capability or connectors at all. This is the original blue dongle...are you referring to something else??

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