[OZAPRS] QRG drift HF APRS

Norm, VK3XCI vk3xci at aanet.com.au
Mon Jul 4 15:27:29 EST 2011


Ummm... TXCO against WWV... have for years. Calibrating the waterfall display is 
even easier... just tune the rx to WWV or any of other the few remaining TaF 
stations.



73 de Norm, VK3XCI
Mildura, Australia
The Wintersun City
QF15bt.

On 2/07/2011 3:40 PM, Kevin wrote:
> Hi all,
> All this hot air about relative frequencies I just wonder just how many of you
> have the means of calibrating your receiver?? I seem to remember that was a
> mandatory requirement of the regs or has that been relaxed as well.
>
> How do you all calibrate those wonderful waterfall displays that many keep
> referring to? or is it a case of the blind leading the blind. After all you are
> relying on the software writer to have his maths correct.
>
> On the SCS DSP trackers I have one here and they certainly are worth the
> investment but with the packet police out and about it remains like all my APRS
> gear switched off and with discussions like this it will likely remain that way
> for a long time to come
>
> Enjoy what you have
>
> Kevin VK4SP
>
> On 07/02/2011 03:10 PM, Norm, VK3XCI wrote:
>> Unless of course if it's an *international* net. Then the primary
>> *international* net station is the *only* one on frequency, and subnet should
>> be within +or- 1x10^-n of the primary ( where n represents the number we all
>> agree on, say -6)
>>
>> :)
>>
>>
>>
>> 73 de Norm, VK3XCI
>> Mildura, Australia
>> The Wintersun City
>> QF15bt.
snipped.....


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