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[aprssig] differential corrections available to public (insome places)

Robert Bruninga bruninga at usna.edu
Mon Mar 14 16:49:18 UTC 2005


>>> "Jim Lux" <jimlux at earthlink.net> 3/14/05 10:56:52 AM >>>
>> That may all be old or obsolete, but it is how we were
>> recommending it back then.  I think we were suggesting
>> that the RTCM104 be on a different 2m freq so that it
>> couild be real-time full operations without any QRM to
>> 144.39.
>> de WB4APR, Bob

>But, if it's on a different frequency, then existing TNCs and 
>radios, which are single channel centric, wouldn't be able 
>to gain the benefit of more precise positions.  

All radios can operate with one TX and a different RX.
Its no different than 2m voice through a repeater. you
liisten on one freq and TX on another.  

Bob




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