Hi Scott.

Yes, it is nice to be coordinated on our DD mode access point. I manage
the NV4FM Tysons Corner Virginia D-STAR stack which is owned by the
Northern Virginia FM Association. (yes, pesky "FM" in the name but they
have more FM repeaters than DV repeaters!)

I agree that the DD mode access point is not a repeater thus does not
have to be in a repeater subband and does not require formal
coordination. But using the local coordination body is playing nice and
if the other gal's ATV repeater is coordinated then you are SOL.

Here in the T-MARC area we do voluntarily coordinate our DD
modules just to be corporate and to have that coordination support in
case of any issue. I do not think there is any need to ask the FCC
anything on this, rather I would say do not ask the FCC!  And we did
coordinate our DV repeaters as we believed from the beginning that they
were repeaters in every sense.

Why is the 23cm triplexer not freq agile? Just retune it like any other
set of cans! Or return it to be retuned if you do not have a network
analyzer!

so ...

> 1) As a repeater owner, would you rather be coordinated?

Answer 1)   Certainly! We (NCR D-STAR) like the volunteer coordination
for the DD mode access point. We created a National Capital Area D-STAR
Association for the NCR D-STAR repeater owners/operators where we
discuss and "coordinate" things to do with D-STAR repeater operation.
Including where our DD mode access points sit but we are happy with the
T-MARC support and placement.

> 2) Is there a reasonable alternative to coordination?

Answer 2) No. And of course coordination can be just operating and
working with others to resolve interference and "I was here first"
things. All we really had to do on the DD mode. Just put them where no
one else is, and in the local digital mode section per the 23cm band
plan. I suppose our NCR D-STAR Association could do this. There at one
time was a D-MARC for coordinating digital mode stuff like packet and
Digital ATV but that fell apart, perhaps as no need? And T-MARC is
willing so why not?

> 3) Should this be something we pursue with the FCC?

Answer 3) Nope. We are supposed to self regulate so lets do that. Has
been working for a long time on other digital infrastructure stuff like
packet and APRS. We do plan local discussions on simplex DV calling
frequencies. And have been part of the T-MARC DV committee.

73, Tom Azlin n4zpt
NV4FM D-STAR administrator
NCR D-STAR Association member

Scott wrote:
> As a repeater owner I'm thinking I would like to have the minimal 
> protection offered by the coordination process.  The "repeaters" may
>  be frequency agile but a 1.2G triplexer is not.  Additionally, the 
> local frequency coordinators are responsible for publishing my 
> frequency to the ARRL and other potential repeater owners/users 
> locally.
> 
> After reading Part 97.205 and 97.3.a.39 it appears the FCC is only 
> recognizes simultaneously broadcasted duplex signals as repeaters 
> needing coordination. The Icom DD mode "repeater" fails both 
> requirements.
> 
> My questions are -
> 
> 1) As a repeater owner, would you rather be coordinated?
> 
> 2) Is there a reasonable alternative to coordination?
> 
> 3) Should this be something we pursue with the FCC?
> 
> Thanks,
> 
> Scott N7SS
> 
> 
> 
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