Hi Blake,
I moved your inquiry into our support-email tracking system. It won't be publicly visible, however.
> Hope all is well. I'm with the NWS Radar Operations Center in Norman, and
> we're working a project to publish Level II data from the FAA's TDWR/NWS
> Supplemental Product Generator (SPG) system. The data distribution will be
> via LDM, but to my knowledge, there's no established feedtype.
>
> Are you familiar with the process for creating a new feedtype? If not,
> could you point me in the right direction? Thanks.
Once upon a time, when computers were much slower, having an integer feedtype was a good idea. Now, with much faster computers and with the 32 bits of the feedtype pretty much spoken for, not so much.
Consequently, we recommend using the EXP feedtype but **making sure** that the LDM product-identifier (the string in the data-product header that identifies the product) 1) uniquely identifies the product; and 2) is **easy to match for a particular class of products**. For example, your identifiers could be something like
FAA/TDWR/SPG/...
where the "..." would be unique to that particular data-product. You might choose a different prefix. The point is that the prefix should provide an quick and easy way to distinguish this class of products.
The above allows a site that's interested in these products to have REQUEST entry like
REQUEST EXP ^FAA/TDWR/SPG some.host.somewhere
and a pqact(1) entry like
EXP<tab>^FAA/TDWR/SPG<tab>PIPE<tab>...
Regards,
Steve Emmerson
Ticket Details
===================
Ticket ID: DJB-370769
Department: Support LDM
Priority: Normal
Status: Closed
===================
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