Signal Server

Signal Server: Server optimised SPLAT! by Alex Farrant, M6ZUJ

SPLAT! Project started in 1997 by John A. Magliacane, KD2BD

For detailed information and reference data related to this program see the SPLAT! documentation

Requirements

• Linux
• GCC,G++
• Multicore CPU (optional)

• 2GB Memory

Parameters

	 -- Signal Server --
Compiled for 64 tiles at 1200 pixels/degree

 -d Directory containing .sdf tiles
 -lat Tx Latitude (decimal degrees) -70/+70
 -lon Tx Longitude (decimal degrees) -180/+180
 -txh Tx Height (above ground)
 -rla (Optional) Rx Latitude for PPA (decimal degrees) -70/+70
 -rlo (Optional) Rx Longitude for PPA (decimal degrees) -180/+180
 -f Tx Frequency (MHz) 20MHz to 100GHz (LOS after 20GHz)
 -erp Tx Effective Radiated Power (Watts)
 -rxh Rx Height(s) (optional. Default=0.1)
 -rt Rx Threshold (dB / dBm / dBuV/m)
 -hp Horizontal Polarisation (default=vertical)
 -gc Ground clutter (feet/meters)
 -udt User defined terrain filename
 -dbm Plot Rxd signal power instead of field strength
 -m Metric units of measurement
 -te Terrain code 1-6 (optional)
 -terdic Terrain dielectric value 2-80 (optional)
 -tercon Terrain conductivity 0.01-0.0001 (optional)
 -cl Climate code 1-6 (optional)
 -o Filename. Required. 
 -R Radius (miles/kilometers)
 -res Pixels per degree. 300/600/1200(default)/3600 (optional)
 -t Terrain background
 -pm Prop model. 1: ITM, 2: LOS, 3: Hata, 4: ECC33,
 		5: SUI, 6: COST-Hata, 7: FSPL, 8: ITWOM, 9: Ericsson
 -pe Prop model mode: 1=Urban,2=Suburban,3=Rural
 -ked Knife edge diffraction (Default for ITM)
 -ng Normalise Path Profile graph
 -haf Halve 1 or 2 (optional)
 -nothreads Turn off threaded processing (optional)

Examples

90m resolution

INPUTS: 900MHz tower at 25m AGL with 5W ERP OUTPUTS: 1200 resolution, 30km radius, -90dBm receiver threshold, Longley Rice model ./signalserver -d /data/SRTM3 -lat 51.849 -lon -2.2299 -txh 25 -f 900 -erp 5 -rxh 2 -rt -90 -dbm -m -o test1 -R 30 -res 1200 -pm 1

30m resolution

INPUTS: 450MHz tower at 25f AGL with 20W ERP OUTPUTS: 3600 resolution, 30km radius, 10dBuV receiver threshold, Hata model ./signalserverHD -d /data/SRTM1 -lat 51.849 -lon -2.2299 -txh 25 -f 450 -erp 20 -rxh 2 -rt 10 -o test2 -R 30 -res 3600 -pm 3

2m resolution (LIDAR)

INPUTS: 1800MHz tower at 15m AGL with 1W ERP OUTPUTS: 2m LIDAR resolution, 5km radius, -90dBm receiver threshold, Longley Rice model ./signalserverLIDAR -lid /data/LIDAR2m/Gloucester_2m.asc -lat 51.849 -lon -2.2299 -txh 15 -f 1800 -erp 1 -rxh 2 -rt -90 -dbm -m -o test3 -R 30 -res 5000 -pm 1