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[aprssig] FREQ Object Formats

la3qma at aprs.la la3qma at aprs.la
Tue May 8 14:29:06 UTC 2012


Quoting "Bob Bruninga" <bruninga at usna.edu>:

>> Inserting the actual offset is a no brainer and the receiving
>> part  doesnt have to do anything other than set that offset.
>
> ;LA5BR    *111111z6024.76N/00521.64Er145.750MHz T097 -0600kHz
> ;LA7BR    *111111z6023.06N/00514.98Er434.700MHz T097 -2000kHz
>
>> This works for me on an modified TM-D710E and it should work
>> on an A  and K model to.
>
> But it is NOT IN ACCORDANCE WITH THE SPEC.  There is no guarantee it will
> "work" on any other radio because it is not in accordance with the spec.  I
> simply do not understand why this is so hard.  If one wants to include an
> offset then do it in accordance with the spec.

I have been following the "in-depth manual" that has several examples like:

146.850MHz T131 -060
146.850MHz T131 -0600kHz     (kHz for readability)
“+500” : Plus Shift, 5MHz Offset (“+5000kHz” is also available)

> Then we will not have ANY of these issues.  In the above cases, simply use
> -060 and -200 and it will ALWAYS work, or the radio has a bug.
>
> Bob, Wb4APR
>

Then there has been a bug because only sending:
;LA5BR    *111111z6024.76N/00521.64Er145.750MHz T097
has on previous firmware NOT inserted the default offset.

With the latest firmware i have set the offset to i.e 0.700MHz and  
when i press QSY on the following:
;LA5BR    *111111z6024.76N/00521.64Er145.750MHz T097

The default offset in the radio is set to 0.600MHz and there is a  
shift on 145.750 so this is new and working.

But this introduce another problem:
;EL-123456*111111z6024.76N/00521.64Er145.237MHz T097

This is not a repeater frequency in Norway but now i get the offset  
and TX on 144.600

So then i always going to include the correct offset regardless any  
"standard" because i know this is working.

;EL-123456*111111z6024.76N/00521.64Er145.237MHz T097 -000  example for simplex
;LA5BR    *111111z6024.76N/00521.64Er145.750MHz T097 -060  example for offset

So then i.e all Echolink nodes has to include an -000 offset to work  
on some models.

Let the sender dictate where and what to QSY to and let the radio just  
do as it's told. KISS

Kai Gunter
LA3QMA



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