K5DER
New Member
Posts: 1
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Post by K5DER on Jan 26, 2017 20:40:58 GMT -8
I have a DVMEGA that's Raspberry PI based. It's great in my house. Is there hardware like that with slightly more power that Can cover more area on my property with the same features?
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k6jm
New Member
Posts: 20
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Post by k6jm on Mar 17, 2017 0:22:37 GMT -8
Darrin, Sorry for the delay -- just saw your post. The RF chip on the DVMEGA radio board I think runs about 10 milliwatts, which is good for nearby coverage. Some people might feed it into an external antenna to get a bit more range, but typically these boards do not have robust filtering and any kind of high intensity RF, whether from a higher power transmitter nearby or lightening in the vicinity, could fry the RF chip's receiver. If your focus is on D-Star, DVMEGA sells a GMSK Modem that fits on an Arduino UNO. The pair then plug into a PC or Pi via USB to form a Hotspot, which you would connect to an analog radio that supports 9600 baud packet data. This radio could be transmitting at 10-20 watts and with a good antenna, could give you 5-30 miles of coverage area. Check out the diagram at the top of www.k6jm.com/hs-setup.htm . The DVMEGA GMSK Modem is the same as what that page calls a Node Adapter. There are other modems available, but I have the DVMEGA GMSK Modem and it works well, particularly with G4KLX software. Jim - K6JM
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