!"#$ &'()*)++ ,- ,.) /0(0**-1 2+*013+ 4'$ 5-60( 013 708 5),)(+-1 9:9;<=> ? @01 /(01A'+A-
!"#$%&'()*)++%,-%,.)%
/0(0**-1%2+*013+%
4'$%5-60(%013%708%5),)(+-1%
9:9;<=>%?%@01%/(01A'+A-%
! 5-'1,%B)C)+%D'(3%;E+)(F0,-(C%
! GH@H%/'+.%I%&'*3*'J)%@)(F'A)%
! K0*'J-(1'0%:A03)$C%-J%@A')1A)+%
! K',C%-J%@01%/(01A'+A-%
! 21,)(1),%:(A.'F)%
@,0#).-*3)(+%
/0(0**-1+%HH%&.)()L%
2$0M)%A-N(,)+C%-J%<--M*)%O0(,.%
O$E0(#0P-1%5(-A)++%
! 2+*013%+,0Q)3%RS!%30C+%-J%,.)%C)0(T%1))3%J-(%()*'0E*)%013%)A-1-$'A0*%A-$$N1'A0P-1+%
– U'+,-('A0**C%VU/%$0('1)%(03'-%F-'A)T%*'$',)3%'WO9%
X9)Y,)*Z%30,0%013%*)M0AC%[H=<.6%1-1\]"[H^^%30,0%
! W0,0%A-**)AP-1%'+%$-F'1M%J(-$%-_'1)%,-%-1*'1)%
– &)0,.)(T%$0$$0*+T%E'(3%-E+)(F0P-1+%
– @)`)(0M)%*)F)*+T%E08)(Ca'1F)(,-(+%$-1',-('1M%
! @.-`A0+)%'+*013%'1%1)`%:A03)$C%)Y.'E',%
– @,()0$%@W%54b%`)EA0$T%()cN'()$)1,%J-(%]7Ed+%,-%
,.)%'+*013%?%E013`'3,.%NdM(03)%1))3)3%
&.C%3-%,.'+L%
! !"#$%&"'"()*+! :Q-(30E*)%?%0**%+,0#).-*3)(+%0()%1-1\d(-e,+%! &)0,.)(d(--J%?%+0*,%`0,)(T%+N1%
! B)*'0E*)%?%-1\'+*013%25%I%B/%#1-`*)3M)%'+%*'$',)3%
! ,%)"+,$&-".+! ;E+,(NAP-1+%! :AA)++%013%@)AN(',C%! 70'1*013%21J(0+,(NA,N()%
! /01"2%(3+! 50,.%K*)0(01A)%! /03)%70(M'1%
! GdP$)%
W)+'M1%K(',)('0%
! 4*25(1+2%'%)560(*+! ̂ ""&%$0Y%'1%*'M.,.-N+)%
! f'$',)3%01,)110%$-N1P1M%+d0A)%
! gB'M.,%-J%&0Ch%GH@H%K-0+,%<N0(3%d(-d)(,C%$M$,H%
! /5%(25(1+! K',C%-J%@/%eE)(%,(01+d-(,%013%,-`)(%+d0A)%! 25%3-10P-1%J(-$%21,)(1),%:(A.'F)%
! !7+! 9-%,())+T%EN'*3'1M+%-E+,(NAP-1+%?%iN+,%`0,)(%! G+N0*%1-1\'1,(N+'F)%+1'j1M%Xk'+7:KT%1),+,N$E*)(Z%
W)+'M1%%?%@',)%@N(F)C%
! 809"&+! OcN'd$)1,%.03%,-%E)%*-`%d-`)(%X3-10,)3%()P()3%
lA0((')(m%cN0*',C%M)0(%,-%cN'A#*C%)Y.0N+,%EN3M),Z%
! !7+! 50,.%)1M'1))('1M%+-n`0()%Xop!"#%,-%J())Z%
! OWqT%50,.f-++T%B03'-%7-E'*)%
! 7-()%A0+.%r%$-()%0AAN(0,)%
! 7)0+N()3%'1%E-,.%A-F)(0M)%:%NdP$)%d()3'AP-1+%
! 50,.%d(-e*)%! /()+1)*%A*)0(01A)%XC)+T%,.)%)0(,.%3-)+%AN(F)Z%! K0*AN*0,)3%*'1#%EN3M),%X+))%50,.K0*A%OYA)*%-(%5)(*%+A('d,Z%
W)+'M1%?%7-3)*'1M%
• ;%(<+=$13")+– @'M10*%+,()1M,.%1))3)3%J-(%,.)%30,0%(0,)%()cN'()$)1,+%J-(%,.)%*'1#%
• 85)>+8&0?2"+– ;E+,(NAP-1+%'1%,.)%d0,.%-(%'1%,.)%/()+1)*%6-1)+%– f)1M,.%-J%d0,.%– KN(F0,N()%-J%,.)%)0(,.%Xo%s%$'*)%d0,.Z%
– U)'M.,%-J%01,)110+%• 21,)(J)()1A)%,-%-,.)(+%-(%,-%,.)%d0,.%J(-$%-,.)(+%
– :1,)110+%E)0$%`'3,.%X3'()AP-10*Z%
• @)'0*A>"&%B*+
W)+'M1'1M%0%d0,.%
! C5%(+– 4(01+$'8)(%013%()A)'F)(%0$d*'e)(+%
– 4(01+$',%013%()A)'F'1M%01,)110+H%
! 4(01+$'8)(%;N,dN,%5-`)(%X45;Z%'1%3D$%-(%&08+%
3D$%r%^"t*-M^"Xd-`)(%'1%$'**'`08+%a%^%$&Z%
"%3D$a^%$&u%^!3D$aR"$&u%["3D$a^""$&u%R"%3D$a^%&%
! ;0**+– K-0YT%A-11)A,-(+%
• ')H%f7B\=""v%"H[[%3D%d)(%$),)(H%
– /())\+d0A)%*-++%• 3D%r%>[H=%w%["%f-M
^"%X3'+,01A)%'1%#$Z%w%["%f-M
^"%XJ()cH%'1%<U6Z%
– ;E+,(NAP-1+%013%W'Q(0AP-1%X')H%4())+T%(0'1T%),AHZ%%– :,$-+d.)('A+%X')H%@1-`aB0'1T%B)J(0AP-1%X')H%WNAP1MZ%
/0A,-(+%J-(%*'1#%Xd0,.Z%EN3M),%
@A.)$0PA%-J%*'1#%EN3M),%
Connector and Transmission Line Loss in dB
Free-space loss in dB
TX Output in dBm
RX threshold in dBm
Directional Antenna Gain
in dBi
Directional Antenna Gain
in dBi
@'M10*%f)F)*%4.-NM.%,.)%f'1#%
Sig
nal S
treng
th
TX
Tran
smitt
ed P
ower
TX A
nten
na G
ain
Free
Spa
ce, e
tc. L
oss
RX
Ant
enna
Gai
n
RX
TX C
oax/
Con
nect
or L
oss
RX
Coa
x/C
onne
ctor
Los
s
!H]<U6%50,.%DN3M),%
/()cN)1AC % % %%%%% % %!H]""" % %<U6%
45; %"HS%`08+ % % %[sHs]^!% %3D$%
4(01+$'++'-1%f'1)%f-++ %"H[""" % %3D%
4q%:1,)110%<0'1 % %%% %R[H""""% %3D'%
50,.%f)1M,. % % %%% %R^H""""% %$'*)+%
/())%@d0A)%f-++ % % %^=^HS>!] %3D%
Bq%:1,)110%<0'1 % %%% %R[H""""% %3D'%
Bq%f'1)%f-++% % % %%%%% %"H[""" % %3D%
Bq%@'M10* % % % % %\!"HR^=R% %3D$%
Bq%,.()+.-*3 % % % %\s=H""""% %3D$%
/03)%70(M'1 % % %%% %[RHS]!s% %3D%
@'M10*%50,.%f-++%
• :,$-+d.)('A%:8)1N0P-1%
– B0'1a@1-`%– 4())+%X@d('1Ma@N$$)(%F+H%/0**a&'1,)(Z%
– 4Cd'A0*%@-*NP-1v%xN+,%1))3%,-%.0F)%*-,+%-J%+'M10*%• 9))3)3%J03)%$0(M'1%`'**%'1A()0+)%`',.%3'+,01A)H%
• B)J(0AP-1%– 4.)($0*%WNAP1M%
– 70('1)%f0C)(+%
– 4Cd'A0*%@-*NP-1v%W'F)(+',C%B)A)dP-1%
• /()+1)*%b-1)%:8)1N0P-1HHH%
&.0,%'+%/()+1)*%b-1)L%
Distance from TX to calc point 15.5000 miles
Path Length 31.0000 miles
Distance from RX to calc point 15.5000 miles
Frequency 5.8000 GHz
First Fresnel Zone Radius 83.2280 feet
Second Fresnel Zone Radius 117.7021 feet
Third Fresnel Zone Radius 144.1551 feet
Forth Fresnel Zone Radius 166.4560 feet
/()+1)*%b-1)%K0*AN*0P-1%
OY0$d*)%[H=<.6%50,.%5(-e*)%
! ;d)(0P1M%J()cN)1AC%(01M)%-J%+C+,)$L%
! U-`%$NA.%M0'1%'+%()cN'()3L%
! 5()J)(()3%(03'0P-1%d08)(1L%
! &.0,%'+%,.)%$0Y'$N$%0**-`0E*)%V@&BL%
! 5-*0('60P-1L
:1,)110%@)*)AP-1%
Antenna Selection Cont... • &.0,%,Cd)%-J%A-11)A,-(%'1,)(J0A)%'+%()cN'()3L%
• How much power will the antenna have to handle?
• Where will the antenna be mounted? • Is a radome required to protect the feed? • What is the lifetime of the antenna?
• 5-*0(',C%'+%0%d(-3NA,%-J%,.)%3)+'M1%-J%,.)%01,)110H%• O0A.%)13%$N+,%$0,A.H%
• 2,%A01%E)%N+)3%,-%$'1'$'6)%$N*P\d0,.%013%'1,)(J)()1A)H%
• 4Cd'A0*%5-*0('P)+v%– U-('6-1,0*%
• :F-'3+%$N*P\d0,.%J(-$%F)(PA0*%-Ei)A,+%*'#)%EN'*3'1M+%
– V)(PA0*%• :F-'3+%$N*P\d0,.%J(-$%.-('6-1,0*%-Ei)A,+%*'#)%,.)%M(-N13T%E-3')+%-J%
`0,)(H%
– K'(AN*0(%• 2,%A01%0F-'3%$N*P\d0,.%J(-$%g-33\1N$E)(%E-N1A)3%+-N(A)+H%
• f)n%-(%('M.,%.013)3%• @-$)%01,)110+%A01%+Ndd-(,%3N0*\d-*0('P)+%
– JN**%3Nd*)Y%*'1#+T%J0'*\-F)(T%]"[H^^1%`',.%727;%X[%A.0'1+Z%
:1,)110%5-*0(',C%
5.C+'A0*%I%1),`-(#%3'0M(0$%
@-N,.%2+*013%;F)(F')`%
f'M.,.-N+)%%
9),`-(#%
@,0Q%.-N+)%75;O%
! GE'cN'P%DN**),7[%
! [H=<.6%! @'1M*)%9%A-11)A,-(%
! ]"[H^^9%E0+)3%! :,.)(-+%725@\E0+)3T%;d)1&B4%y0+.m0E*)%
! [=V%d0++'F)%5-O%
! 50A'eA%&'()*)++%(03-$)%01,)110+%
! WN0*%d-*0(',C%!<.6T%@'1M*)%d-*0(',C%[H=<.6%! @-)#('+%1),!!"^%
! :7W%Y]S%!""7.6%`a^[]7ET%K-$d0A,/*0+.%
! !Y%/0+,O,.)(1),%
! K'+A-%&@\K[>!"\^[%
4.)%k',%
! GE'cN'P%B-A#),!%! !H[a!H]<.6%! WN0*%B5\@7:%
! ;d)1D@W%=H!%! AD%'+%M()0,%?%)0+C%+C1,0YT%.013*)+%9:4%,('A#+%`)**%! @)AN()T%A*0'$+%+-$)%A(01#C%K0103'01%I%<)($01+%%
! xN+,%`-(#+z%! GP*'P)+%)Y,()$)*C%F0*N0E*)%
! E5*>&1%,-%+,('d%3-`1%E0+)%;@T%+0$d*)%#)(1)*+%%
! 1>BA1$'A%+1'Q%V-25%d.-1)%WUK5%F)13-(%,0M+%! (3&"A%$0'1*C%J-(%?&%EC*'1)%+Ndd-(,T%3)ENM%+*-`%
+-A'0*%1),`-(#%+',)%*-03'1M%
O$E)33)3%D@W%
! W'+0E*)%g:'(7:qhu%GE'cN'P%d(-d('),0(C%d-**'1M%
d(-,-A-*%X4W7:m'+.Zu%1-,%1))3)3%J-(%5-'1,%,-%5-'1,%
! W'+0E*)%0N,-\1)M-P0,)%30,0%(0,)+u%J()cN)1,%A.01M)+%`'**%*--+)%+C1A%?%.0(3%()E--,%,-%eY%
! G+)%+$0**)+,%A.011)*%`'3,.%0+%d-++'E*)%,.0,%+0P+e)+%
E013`'3,.%()cN'()$)1,%
! f-1M%3'+,01A)%*'1#+%.0F)%'1,)(J)()1A)T%0F-'3%{:7%
$-3N*0P-1%+A.)$)u%`.'A.%+A.)$)%*'#)%0%D@/k%`',.%
0$d*',N3)%A-$d-1)1,%+NA.%0+%7K@"%X^%A.0'1Z%-(%
7K@]%X[%A.0'1+Z%
! @),%g3'+,01A)h%3'()APF)%,-%R"|%-F)(%0A,N0*%A0*AN*0,)3%3'+,01A)u%,.)%:'(;@%0N,-\$0M'A%3-)+1m,%`-(#%`)**%
x-C+%-J%GEcN'Pm+%]"[H^^1%727;%
! dJ%g+A(NEh%A01%E',)%C-N%'1%0+C$$),('A%(-NP1M%%
! 5\74G%*'#)%d(-E*)$T%+-$)%U445%+',)+%1-,%*-03'1M%
! :*`0C+%.0F)%,)A.')+%ENC%,.)%A0E*'1M%! 4(C%A('$d'1M%Bx=!%-1%[[<%XC)+T%1-,%[=Z%+PA#C%`'()+%
! D'(3%d--d%'+%)Y,()$)*C%J-`*%013%`),%
! D*01#),+%A*-,.'1MT%,.)%+$)**%,.0,%#))d+%-1%M'F'1M%
! f-01)3%,--*+%1)F)(%(),N(1%-(%(N+,m'e)3%'1%30C+%! :+%N+N0*T%1)F)(%)1-NM.%P$)%
! S0$%,-%Sd$%,('d+%`-N*3%C')*3%=.(+%-J%N+0E*)%-1\'+*013%
P$)%
f)++-1+%f)0(1)3%
! :F-'3%N1*'A)1+)3%E013+%! OcN'd$)1,%'+%*'$',)3T%)Yd)1+'F)T%A--(3'10P-1%
! GdM(03)%`)EA0$%,-%UW%()+-*NP-1%
! ;1\'+*013%*-A0*%90M'-+%`)0,.)($0d%
/N,N()%W'()AP-1+%
4'$%5-60( %%
%d-60(}*1+HA-$%
708%5),)(+-1%
%$08}d),)(+-1H-(M%
4.01#%~-N%a%{I:%
f'1#+%
/0(0**-1)+%&)EK0$%X0F0'*0E*)%SvR"%,-%^>vR"%5@4Z%
.8dvaa`` H̀A0*0A03)$CH-(Ma`)EA0$+aJ0(0**-1)+a%
f-+%/0(0**-1)+%X'+*013%+,0Q%E*-MZ%
.8dvaa*-+J0(0**-1)+HE*-M+d-,HA-$a%
y0+.(3%X;d)1D@W%)$E)33)3%'1+,0**)(Z%
.8dvaa`` H̀1$)3'0H1),ay0+.(3a%
GE'cN'P%9),`-(#+%X(03'-%$01NJ0A,N()(Z%
.8dvaaNE1,HA-$a%