[OZAPRS] APRS Tracker

[Gerard Hill]

Hi David,

The RTG has no receiver so you can't wait until the squelch closes. It 
transmits regardless! There is a high likelihood of squashing a fellow 
ham's packet.

Imagine the chaos if we jumped on our local 2m repeater and started 
transmitting without listening first.

Cheers ... Gerard, VK2IO

On 29/11/2010 11:25 AM, VK4UN wrote:
> ?But APRS is in Auto mode, it only transmitts when when the Squelch is
> closed at least that's how mine works, it my tiny tracker or Kenwood 710
> is ready to transmitt a beacon it waits till the squelch is closed, if
> it is hearing a digi or another beacon from a vehicle it waits till it
> is clear, I would imaging it would be the same with the RTG
>
>
> Cheers
> vk4un
>
>
> ----- Original Message ----- From: "Gerard Hill" <vk2io at amsat.org>
> To: <rodney at melecom.com.au>; "Australian APRS Users" <ozaprs at aprs.net.au>
> Sent: Monday, November 29, 2010 8:18 AM
> Subject: Re: [OZAPRS] APRS Tracker
>
>
>> The amateur regs have always stated that you should listen first
>> before transmitting. APRS shouldn't be any different.
>>
>> I expect the RTG is contributing to the severe congestion they're now
>> trying to overcome in the US on 144.39 MHz. Byonics should have called
>> it the Micro-Trak QRM.
>>
>> Cheers ... Gerard, VK2IO
>>
>> On 29/11/2010 10:56 AM, Rodney Mitchell wrote:
>>>
>>>
>>> Looks good! For future reference, what is the policy regarding blind TX?
>>> Can anyone suggest network effect if there were many?
>>>
>>> 73 de Rod, VK5KFB.
>>>
>>>
>>>
>>>> Matthew,
>>>>
>>>> Is the RTG available on 145.175 or are you modifying it yourself?
>>>>
>>>>
>>>> Cheers
>>>>
>>>> Daryl (VK3AWA)
>>>> On 29 November 2010 10:32, VK6MRG<vk6mrg at iinet.net.au> wrote:
>>>>
>>>>> What equipment do you use for the mobile?
>>>>>
>>>>> I have ordered the Micro-Trak RTG for the car.
>>>>>
>>>>> The link is: http://www.byonics.com/microtrak/mt-rtg.php
>>>>>
>>>>> And just to put all your minds at ease, I have got the modules for
>>>>> 145.175
>>>>> MHz.
>>>>>
>>>>> Regards,
>>>>>
>>>>> Matthew
>>>>>
>>>>> VK6MRG
>>>>>
>>>>> _______________________________________________
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>>>>> OZAPRS at aprs.net.au
>>>>> http://lists.aprs.net.au/mailman/listinfo/ozaprs
>>>>>
>>>>>
>>>>
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>>
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