[aprssig] GPS GT-320FW(AS)

Andrew Rich vk4tec at tech-software.net
Wed Apr 24 18:42:01 CDT 2013


Can you do 4800 RTTY ?

Like the baloons do ?

I also have a 434 TX that shifts freq on 0 or 5 volts

ASK

- Andrew -

----- Original Message ----- 
From: "Andrew Rich" <vk4tec at tech-software.net>
To: "Jason KG4WSV" <kg4wsv at gmail.com>; "TAPR APRS Mailing List" 
<aprssig at tapr.org>
Sent: Thursday, April 25, 2013 9:38 AM
Subject: Re: [aprssig] GPS GT-320FW(AS)


> Yes
>
> The Easyradio can take in 160 charcaters before it needs to send
>
> It wants a break of 2 or more characters to say " ok send now"
>
> What I could do is limit the GPS to just 4800 baud and once a second
>
> As long as the GPS does not get longer that 160 characters I should be ok 
> ?
>
> I thought about this back to back
>
> The PIC MCU was making me a APRS packet over easey radio
>
> But I gues if it just me and the quad - why use APRS ? just use NMEA
>
> So maybe I look at the easy radio specs and see what the input volts and 
> speed are
>
> Can I make a GPS-320 go different speeds and affect the sentences ?
>
> Say 4800 baud $GPRMC only
>
> Some options
>
> Now <GPS> <MAX232> <PICMCU> <EASYRADIO>
>
> 1. <GPS><FET> <PICMCU> <EASYRADIO>
> 2. <GPS><EASYRADIO>
>
> I have also a beeline GPS on order
>
> - Andrew -
> ----- Original Message ----- 
> From: "Jason KG4WSV" <kg4wsv at gmail.com>
> To: "Andrew Rich" <vk4tec at tech-software.net>; "TAPR APRS Mailing List" 
> <aprssig at tapr.org>
> Sent: Thursday, April 25, 2013 9:26 AM
> Subject: Re: [aprssig] GPS GT-320FW(AS)
>
>
>> On Wed, Apr 24, 2013 at 6:14 PM, Andrew Rich <vk4tec at tech-software.net> 
>> wrote:
>>> 1. GPS
>>> 2. PIC MCU
>>> 3. EasyRadio 434 TX 19k2 100 mW
>>
>>
>> If you can change the baud rate (in a non-volatile way) on either the
>> radio (web page says it has a UART interface) or the GPS, you can just
>> connect them back-to-back.
>>
>> Some of our guys did exactly this with xbee modules and a GPS unit for
>> tracking rockets.
>>
>> -Jason
>> kg4wsv
>>
>>
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>
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