[aprssig] AX.25 RR bit test - Holy Grail (reply)

[PE1RDW]

Where these bits not also used for extended modulo 128 ax25?
Or does that just use a different frame type?

-- 
73 Andre PE1RDW

On Fri, 30 Nov 2012 23:05:26 +0100, John Wiseman <john.wiseman at cantab.net>  
wrote:

> A google seach for "ssid reserved bits" comes up with quite a bit of
> interesting reading, including the use of the reserved bits by DAMA.
>
> For what it is worth, my code always sets the reseved bits in addresses  
> it
> creates, and normally only sets the "used" bit when digipeating. The
> exception is that when the SSID of a WIDEn-n is changed, the reserved  
> bits
> are set as well as the "used" bit.
>
> 73, John G8BPQ
>
> -----Original Message-----
> From: aprssig-bounces at tapr.org [mailto:aprssig-bounces at tapr.org] On  
> Behalf
> Of Robert Bruninga
> Sent: 30 November 2012 21:24
> To: TAPR APRS Mailing List
> Subject: Re: [aprssig] AX.25 RR bit test - Holy Grail (reply)
>
>> The RR bits are most likely 00 for every... packet coming out of a
>> KISS interface to APRSISCE/32.
>> Now where did I put that AX.25 spec so that I can figure out just
>> which bits we're talking about...
>
> Im sure your replicated them to their defaults which is [11]...  but if  
> you
> didn't, then all of those existing packets are a good test already...
>
> To see the definition of these bits, see figure 2.2.13.1.1 in:
> http://www.tapr.org/pub_ax25.html
>
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