Signal Server 1.3.3 changelog 

v1.3.3 - 04 Nov 2012
Air planning:
Increased maximum Tx height to 60,000 (m/f)
Increased maximum Rx height to 60,000 (m/f)

v1.3.2 - 04 Oct 2012
Re-instated grey scale option to allow for terrain background.
Off by default. Enable with switch -t

v1.3 - 03 Jan 2012
Added user defined clutter layers from SPLAT! (-udt switch)

v1.2 - 31 Dec 2011
Max colours increased from 32 to 128
Radius value fixed at metric
Metric / Imperial conversion bug fixed

v1.1 - 08 Dec 2011
Max Tx altitude increased to 20,000(m) for high altitude aircraft. "Can you 'ere me now?"
Added 2 new options -tercon, -terdic for *custom* dielectric values and ground conductivity. -te terrain option remains. Use with care!
New Earth Dielectric range (Permittivity): 80 to 0.1
New Conductivity range (Siemens/m): 0.01 to 0.000001

v1.0 - 19 November 2011
SS released.