[aprssig] More efficient use of channel capicity through shorterpackets

Ron Stordahl ron.stordahl at digikey.com
Fri Oct 13 10:22:21 EDT 2006


Curt Mills wrote:
> On Thu, 12 Oct 2006, Ron Stordahl wrote:
>
>   
>> I have done some testing with two MFJ1270C's and a Motorola Micor as well as a
>> Kenwood TM261.  I am able to establish a link and move data with each side set
>> at a TXD of 90 milliseconds.  At 80 milliseconds the link fails.
>>     
>
> Just curious, were you using a true-DCD detect on the receive end
> running open-squelch?
Yes, open squelch and true-DCD detection using the MFJ1270C's which 
support that.

Ron
N5IN
>   If not, then the time to open up the squelch
> on the receive end added a fixed factor to your times.  Not a big
> deal, but should be included or specified when talking about times.
>
>   





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