Usually if DME or other facility is required, it's in the title, or in a note that appears in VERY large BOLD text
and says something like "ADF or RADAR is required" in the plan view. Neither appears on this chart.
If you use NOBBY as the IAF, you'll have no need for DME, as it's not required for the LOC MAP (timing
works just as well) and it's not required for the missed approach procedure.

My read is "if you use DME," you must receive the localizer simultaneously. It's possible that's so you positively
identify the localizer, and don't start to fly inbound too soon on a false sidelobe from the localizer antenna. Which
could
ruin your day.
Max T, MCFI

Don Faulkner wrote in message news
Hi folks. I've got a bit of a puzzle here.
First off, I'm a student pilot, so maybe I haven't gotten to this yet.

Take a look at the ILS 18 plate for Springdale, AR (ASG):
http://myairplane.com/databases/appr...l/ASG_ir18.pdf

First, note that the approach is "ILS RWY 18"
---
Next, read in the notes section:
Circling NA east of Rwy 18-36, inoperative table does not apply.
DME from RZC VORTAC
Simultaneous reception of I-ASG and RZC DME required.
---

So, the way I read this, DME is not required, since the approach is ILS
not ILS DME, but it is required since "simultaneous reception ... is
required."

I guess my real question is, "Is this approach authorized for an aircraft
without DME? And if not, why don't they call it ILS-DME?" but read on for
my thinking...