Nate and any others that are interested
Icom/Kenwood and others use NXDN (4 Level FSK/FDMA 6.25 kHz Technology)
see www.nxdn-forum.org. It is a relatively open digital standard for commercial
equipment for its Over the Air (OTA) communcation protocol.
I believe that an amaueur application
On May 19, 2010, at 8:55 AM, ve3ei wrote:
Nate and any others that are interested
Icom/Kenwood and others use NXDN (4 Level FSK/FDMA 6.25 kHz Technology)
see www.nxdn-forum.org. It is a relatively open digital standard for
commercial equipment for its Over the Air (OTA) communcation
Hi I have a Icom IC-80AD.
Now I like to hookup a external GPS, and need connection information.
Is there anyone who have done this before.
What need is a photo copy from the service manual GPS connection area.
73 de Art (VK4GO)
http://ja1ogs.com/dstar.htm
If you have the plug from the GPS to a PC and you have the plug from the
IC-80AD to a PC, get a Null Modem adapter and hook them together.
You'll need to tell the radio that a GPS is connected and the radio and GPS
will both need to be set to NEMA 4800 bps.
Ed WA4YIH
From:
--- On Wed, 19/5/10, Woodrick, Ed ewoodr...@ed-com.com wrote:
Half the bandwidth of D-STAR? What bandwidths do you believe
that each uses?
I thought that they were actually the same at ~6.25 kHz.
D-STAR GMSK is essentially a 12.5 kHz channel spacing system.
The FCC defines bandwidth differently for Amateur vs Commercial -
Amateur bandwidth is -26 db points either side of center in the US.
Seems like LMR / PMR is -60 some odd either side of center. When I
looked at the mask it seems like reality for DSTAR was around 12 1/2
khz occupied bandwidth @ -
