Improve SRTM doc

[Mictronics]

Can you please improve the documentation on how to download SRTM files in .hgt format.
Linking that one page is a bit coarse. The Amazon S3 bucket for central Europe on that linked page results in access denied.

[mrpatrick1991]

Can you show me the AWS command you used?

[Mictronics]

The one shown on the linked page: aws s3 ls --no-sign-request s3://elevation-tiles-prod-eu/

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Why I ask and why I want to setup your project for playing around:
Your dev map shows some non-realistic results. I have a node deployed where I also did a range test of 145km. For the same node location your dev map shows values of -129dBm for a range of less than 30km.
With 145km LOS range I got realistic -105dBm in Meshtastic app and calculated -108dBm.
See https://www.mictronics.de/posts/Meshtastic-869MHz-Rangetest/

[fifieldt]

here's my hack to make a script to get the tiles:

#!/usr/bin/env python3

for N in range(0,59):
  for W in range(0,180):
    print("wget https://s3.amazonaws.com/elevation-tiles-prod/skadi/N%02d/N%02dW%03d.hgt.gz" % (N, N, W))
  for E in range(0,180):
    print("wget https://s3.amazonaws.com/elevation-tiles-prod/skadi/N%02d/N%02dE%03d.hgt.gz" % (N, N, E))

for S in range(1,56):
  for W in range(0,180):
    print("wget https://s3.amazonaws.com/elevation-tiles-prod/skadi/S%02d/S%02dW%03d.hgt.gz" % (S, S, W))
  for E in range(0,180):
    print("wget https://s3.amazonaws.com/elevation-tiles-prod/skadi/S%02d/S%02dE%03d.hgt.gz" % (S, S, E))