Yorkshire Net UK
YorkshireSVX • ERP Calculator
Repeater ERP Calculator
Inputs
Band
10m (~28 MHz)
6m (~50 MHz)
4m (~70 MHz)
2m (~145 MHz)
70cm (~435 MHz)
23cm (~1296 MHz)
Coax Type
Aircell 5
Aircell 7
Belden 9913
Ecoflex 10
Ecoflex 15
Heliax LDF4-50A (1/2")
Heliax LDF5-50A (7/8")
Heliax LDF6-50 (1-1/4")
LMR195
LMR240
LMR300
LMR400
LMR500
LMR600
LMR900
RG174
RG213
RG214
RG316
RG58
RG8X
Feedline Length
Length Units
meters (m)
feet (ft)
TX Power (W)
Antenna Preset
auto-fills gain
-- Manual (enter gain) --
13 Element Yagi
23cm Large Dish (~1.2m)
23cm Medium Dish (~90cm)
23cm Small Dish (~60cm)
3 Element Yagi
5 Element Yagi
5/8 Wave Vertical
9 Element Yagi
Comet GP15
Comet GP3
Comet GP6
Comet GP9
Comet GP95
CommScope DB222
CommScope DB224
Diamond V2000
Diamond VX4000
Diamond X200A
Diamond X30
Diamond X300
Diamond X50
Diamond X510
Diamond X700
Discone
Half Wave Vertical
Quarter Wave Vertical
Sinclair SC229
Sinclair SD224
Sirio 827
Sirio CX-4
Sirio GPA 27
Telewave ANT150D
Telewave ANT450D
Antenna Gain
Gain Units
dBd
dBi
Component Preset
auto-fills other losses
None (manual)
Simple base (connectors only)
Duplexer (typical compact)
Duplexer + cavities / extra filtering
Full site chain (duplexer + filters + arrestor + connectors)
Other Losses (dB)
Site
Antenna height AGL (m)
Latitude
Longitude
Coverage radius
Calculate
Update terrain coverage
Update loss graph
Coverage Map
Feedline loss graph
