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 would
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 p
The modulation scheme used has the advantage of using half the bandwidth of
D-STAR and both Kenwood and Icom supply a range of VHF and UHF moniles,
handhelds and repeaters.
At a later date there may be some merit in changing the modulation we use for
D-STAR to improve spectrum efficiency.
Th
On May 19, 2010, at 11:06 AM, Trevor . wrote:
The modulation scheme used has the advantage of using half the
bandwidth of D-STAR and both Kenwood and Icom supply a range of VHF
and UHF moniles, handhelds and repeaters.
At a later date there may be some merit in changing the modulation
we
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
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.
From: dstar_digital@yahoogroups.com [mailto:dstar_digi...@yahoogroups.com] On
Behalf Of Trevor .
Sent: Wednesday, May 19, 2010 2:06 PM
To: dstar_digital@yahoogrou
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: dstar_digital@yahoog
--- On Wed, 19/5/10, Woodrick, Ed 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.
http://utahvhfs.org/dstar_channel_spacing.html
4
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 @ - 6
http://www.n5zpr.com/Media/icom_cables.pdf - see gps cable for ic-91a/d
--- In dstar_digital@yahoogroups.com, "ja1ogs" wrote:
>
> 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 phot
On 5/19/2010 3:29 PM, Steve Bosshard (NU5D) wrote:
> 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 realit
http://forums.qrz.com/showthread.php?t=249029
Listen to DSTAR via the internet
Everyone is welcome to listen to DSTAR without purchasing any equipment. A
DSTAR feed is now available via the radioreference.com website. This feed is
usually connected to Reflector
12 matches
Mail list logo
