Thanks @littlegezzybear
Submissions also display for me now.
So submissions were uploaded in the 9 hr gap between our posts.
Submission by Rob Hurle of the Burra community assoc is very interesting. It appears that the increase to output has already taken place, he writes that as of Nov 2018, digital radio became available.
This is a great result, it appears to be a remote area with bad terrain and the increase is achieving just what it should be.
CBAA submission spends much of it on asking for a minimum ERP limit to be added to the plan as well as expediting infill within Canberra such as Tuggeranong.
Kev Blyton for 2CC/CA writes a simple submission agreeing with increase highlighting the trial output of 3.1kW as insufficient.
SBS highlights the quick utilisation of their allocation away from the trial allocation in Dec 17.
Most interestingly, notes the national broadcasters began an SFN on Tuggeranong Hill in Mar 18. Says it covers more than 50 000 residents in that southern edge of Canberra’s urban area.
Continues with “near immediate” enhanced coverage. So it appears the ACMA used common sense that the proposal would be well received and allowed that increase in Nov 2018 as per Burra Community Assoc submission above.
SBS were ready for the increase, knowing 20kW was more reasonable for Canberra:
From the outset, the national broadcaster transmitter was selected to have the headroom to
closely match an anticipated future increase in ERP. Such futureproofing of the
transmission infrastructure is incremental and efficient compared to complete swap-out
of low-powered equipment.
More detail comes in the final pars, thanks SBS. We know exactly what the ERP is and why:
SBS (and ABC) have the infrastructure in place to be able to increase ERP to 18.5kW—
against a proposed maximum licensed ERP of 20kW 2—without delay.2
The limit of 18.5 kW ERP is determined by the break-point in chosen base transmitter power for a 0.4dB reduction in signal level, which is not material to the audience—the design decisions represent an optimal commercial outcome.A higher transmitter power (at the next break-point) would demand materially increased capital and operating costs for no material gain
Will be interested to see if the commercial operators buy a different brand TX that has different break-points closer to 20kW.