(42S) - (C+N)/N - "(C+N/N) displayed level on spectrum analyzer screen"

[Emilio Abud Filho]

Dear All

Program (C+N)/N for finding (modulated signal+noise)level over noise level ratio, on spectrum analyzer screen, for a receive antenna chain (antenna + LNA + analyzer); to be used with "HP Solver" built-in application; to be used with "HP Solver" built-in application.

Attachments:

- Program documentation, including example, math equations, how to use explanations, source code, etc; (xlsx and pdf)

- Source code in RAW format file (zip)

Code:


00 { 476-Byte Prgm }
01 LBL "(C+N)/N"
02 MVAR "(C+N)/N"
03 MVAR "PRX"
04 MVAR "BRF"
05 MVAR "TAST"
06 MVAR "ILdB"
07 MVAR "GAdB"
08 MVAR "NF"
09 MVAR "IL2dB"
10 MVAR "DANL"
11 MVAR "BWSA"
12 MVAR "Ta(C)"
13 CF 01
14 RCL "BWSA"
15 RCL "BRF"
16 X≤Y?
17 SF 01
18 1.380649ᴇ-23
19 STO "CB"
20 -30
21 RCL+ "PRX"
22 XEQ 01
23 STO "PRXl"
24 RCL "ILdB"
25 ABS
26 XEQ 01
27 STO "LF"
28 RCL "GAdB"
29 XEQ 01
30 STO "GA"
31 RCL "NF"
32 XEQ 01
33 1
34 -
35 290
36 ×
37 STO "TLNA"
38 RCL "IL2dB"
39 ABS
40 XEQ 01
41 STO "L2"
42 RCL× "LF"
43 STO "LFL2"
44 -30
45 RCL+ "DANL"
46 XEQ 01
47 RCL× "BWSA"
48 STO "NR"
49 273
50 RCL+ "Ta(C)"
51 STO "Ta(K)"
52 RCL "PRXl"
53 RCL÷ "LFL2"
54 RCL× "GA"
55 STO "PRX2l"
56 RCL÷ "BRF"
57 STO "DPRX2l"
58 RCL "TAST"
59 RCL× "GA"
60 RCL "LF"
61 1
62 -
63 RCL× "Ta(K)"
64 RCL× "GA"
65 +
66 RCL÷ "LFL2"
67 RCL "TLNA"
68 RCL× "GA"
69 RCL÷ "L2"
70 +
71 RCL "L2"
72 1
73 -
74 RCL× "Ta(K)"
75 RCL÷ "L2"
76 +
77 STO "TRXT"
78 RCL× "CB"
79 RCL× "BWSA"
80 RCL+ "NR"
81 STO "NTl"
82 RCL÷ "PRX2l"
83 1/X
84 XEQ 02
85 STO "S/N"
86 RCL "DPRX2l"
87 RCL× "BWSA"
88 FS? 01
89 RCL "PRX2l"
90 STO "PRXSAl"
91 RCL÷ "NTl"
92 STO "C/Nl"
93 XEQ 02
94 STO "C/N"
95 1
96 RCL+ "C/Nl"
97 XEQ 02
98 RCL- "(C+N)/N"
99 CF 01
100 RTN
101▸LBL 01
102 10
103 ÷
104 10↑X
105 RTN
106▸LBL 02
107 LOG
108 10
109 ×
110 RTN
111 END

Warm regards,