I simply monitor my Outbox and if the message doesn't change to a 
timestamp within a reasonable amount of time, I just delete it on the 
Nuvi.  This seems to happen when sending a message to a station that 
doesn't have a route back to deliver the ack.  
(http://aprsisce.wikidot.com/aprs-messaging-explained)

Lynn (D) - KJ4ERJ

tbanks204 wrote:
> I have set retries to 0, I don't think this helped, that being said, it would 
> appear at least from my unit anyway, that messaging is not possible without a 
> lot of congestion of the band. This I would think this would be unacceptable. 
> KC0WNY
>
> --- In [email protected], Joe Krout <jkr...@...> wrote:
>   
>> The only reliable way I have found is to delete the message after you see
>> the MTC transmit it 3 times or so.
>> W0PWJ
>>
>> On Apr 5, 2010 11:19 PM, "tbanks204" <tbanks...@...> wrote:
>>
>> I saw some discussion on this issue, but don't remember if a solution was
>> found. What is the secret to prevent the Nuvi 350 from repeating messages
>> sent, over and over. Thanks
>>     

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