[aprssig] 1200 vs 9600 baud

Ted11 tedlists at hullar.com
Sun Dec 22 11:33:26 CST 2013

I wanted to thank everyone for their replies.  This really helped me understand the technical and infrastructure issues of 1200 vs 9600.  





From: aprssig-bounces at tapr.org [mailto:aprssig-bounces at tapr.org] On Behalf Of Andrew Rich
Sent: Saturday, December 21, 2013 2:51 AM
To: TAPR APRS Mailing List
Cc: aprssig at tapr.org
Subject: Re: [aprssig] 1200 vs 9600 baud


Most definitely


Someone should try making adsb for ham radio


The only thing is the bandwidth 


ADSB is just pulse position modulation. 


Except its at 1MB /s


I think it's about 7 MHz


Could be ok on 1200 MHz ?


It is awesome to hear a 'click' like static that translates to a position report 



Sent from my iPhone

On 21/12/2013, at 1:33 PM, Ray Wells <vk2tv at exemail.com.au> wrote:


Are there any components of ADS-B that might be transferable to a totally "new", UHF APRS system. We recognised years ago that ax25 has severe limitations and that better systems exist. Whilst we'll never change ax25 and 1k2 aprs it should be possible to devise an alternative network using new protocols to which users can migrate over a period of time.

My $0.02 worth


On 21/12/13 14:24, Andrew Rich wrote:

Been thinking about this for a while


I thought 9k6 was less reliable.


Wouldnt you be better off going like FL-DIGI ?


Fast RTTY 


- Andrew - 

----- Original Message ----- 

From: Hüseyin ODABAŞ, TA1DF <mailto:ta1df.huseyin at gmail.com>  

To: TAPR APRS Mailing List <mailto:aprssig at tapr.org>  

Sent: Friday, December 20, 2013 6:08 PM

Subject: Re: [aprssig] 1200 vs 9600 baud (was: Tracker3 9600 baud balloon tracker beta offer)



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