[aprssig] Really CHEAP Puck-type USB GPS Receiver
Sander Pool
sander_pool at pobox.com
Sat Jan 21 13:03:22 EST 2012
The BR-355 I mentioned before is a serial mouse GPS for which you can
buy a USB converter or DB-9 adapter (not a level converter) with PS2
plug for power.
http://www.usglobalsat.com/p-57-br-355-gps.aspx
These are still available and not expensive. I have one on order without
cables so I can integrate the module into my D710. Its native output is
RS-232 NMEA at 4800 baud, exactly what I need. It's not quite the
TTL-out type you're talking about but it's close.
For my netbook I use a BT GPS mouse. They were pricey when I bought mine
but they're cheap now. Mine can be powered with a standard USB cable so
I'm not concerned with the battery running out. Enterprising folk can
combine TTL GPS modules with $10 BT boards to homebrew these types of
solutions but frankly at current prices it's probably not worth the
trouble. I do have a few of those BT boards waiting for other
applications though such as adding BT to my D710 to make it a wireless
TNC :)
73,
Sander W1SOP
On 1/21/2012 11:28 AM, Stephen H. Smith wrote:
>
>
> During the transition period from serial to USB on PCs a decade or so
> ago, there WERE some universal USB+serial GPS units that brought the
> TTL/serial data, before the USB conversion, out of the unit on
> additional conductors in the cable. You typically had some odd
> connector on the end of the cable and then two pigtails adapters; one
> with a USB "A" plug, and one that forked into DB-9 plug (for data)
> and round PS/2 connector (to steal 5VDC from a mouse/keyboard port on
> a laptop). Unfortunately these versatile units, that were the perfect
> universal solution for APRS hams, disappeared from the market before
> the excellent SiRF-III GPS chipset appeared.
>
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