Re: DGPS

From: Pieter Litchfield (pvcl_at_*nospam*plitch.com)
Date: 01/19/05 

Date: Wed, 19 Jan 2005 11:18:49 GMT

I stand corrected - on page 9 of my GBR-23 manual it says:

"Without external commands, the GBR23 will automatically scan frequencies
betwen 283.5 - 325.0 kHz @ 0.5 kHz steps for 100 and 200 bps stations
only.....For non-Garmin receivers which do not supply a valid tuning
interface to the GBR-23, it is not necessary to connect the DATA IN (BROWN)
wire of the GBR-23. The GBR-23 should tune into a DGPS station within about
10 minutes. The unit will store the last used fequency in non-volatile
memory and default to that frequency on next use. If you lose DGPS signal,
the unit will attempt to reconnect to the last frequency and if necessary,
tune to another station."

So all these years I've not used it with my Magellan units because I thought
it was manual-tune via GPS software interface only! Oh well...

I wonder if the earlier GBR-21 receiver had the same auto ability?? I could
be wrong twice!

Wayne - thanks for the "heads up."

Pieter

"Wayne R." <wruffner@KomKast.net> wrote in message
news:fndru0pfs8qan30pa03qqpl9e55m9q4mn2@4ax.com...
> Pieter,
>
> Please review the manual with your GBR23 - it can do auto-tuning. No
> need to have a direct interface with it. I hardwired mine so my 12XL
> could take the RTCM input and also output NMEA, and it managed to take
> on new beacons as needed.
>
> Wayne
>
>
> On Mon, 17 Jan 2005 14:06:45 GMT, "Pieter Litchfield"
> <pvcl@*nospam*plitch.com> wrote:
>
>>power supply. Like the GBR-21, the GBR-23 can only be tuned by using a
>>data
>>interface with custom NMEA sentences. This means that they were designed
>>to
>>be used only with Garmin receivers.