|
(Version 7b - February 13, 2015)
Mr. Alok K. Tiwari, of Idea Cellular Ltd., has graciously made this "Transmission Link Planning Tool" workbook
available. Says Mr. Tiwari, "Based on users feedback regarding some of the buttons not working properly,
I have just gone through the sheet to make those necessary corrections in the macro used. Almost no
change has been made in formulas." Please also see the
UMTS Link Planning Tool as well.
|
 Click to download
|
Important: If the file name is changed from
the supplied "Link Planning Tool.xls," some of the macros will not function properly. It would be best
to save the completed workbook under a new name, then start on new systems with the original file.
Here is the description for using the utility: 1. We mainly enter the parameter value into
the sheet "Calculations".
a. Entries shown in YELLOW cells are
mandatory. b. Entries shown in GREY cells are to play
with in order to get the desired
result wrt Standard Link Design Criteria. c. Entries shown
in SEA GREEN are ONE-TIME entries like
temperature, pressure etc.
DISCLAIMER: Use of this UTILITY is not intended
for any commercial set-up. The author is not responsible for any type of damage occurred due to implementation
of the results obtained from this utility to any commercial set-up.
 Please be careful while making
any change to Sheet "Calculations" for it contains the most important formulae. Passwords can be provided
if needed (aktiwari@hotmail.com).
The "Calculation" sheet looks up for the required data :
a. For Antennae (of 18 GHz band) from the sheet: "DB_Ant1
(18GHz). b. For Antennae (of 15 GHz band) and Frequency
of Operation
from the sheet:"DB_Ant2 (15GHz).
Note that only FOUR antennae sizes EIGHT Frequencies in TWO
separate bands can be used. c. For Radio Specific Data form
the sheet: DB_RadioEqpt.
Here THREE different type of Radios can be used.
 2. The Sheet "Antenna Heights"
is to calculate the antennae heights based on LOS survey
feedback data.
3. The Sheet "Report" is just the compilation of information used
in link implementation.
This is to bring to your kind notice that formulae used into this workbook are as per ITU-T.As I'm
using the Tool like Nokia's NETACT PLANNER and CTE's PATHLOSS, I've observed the similar results at
least for Link Design parameters.
NEW (v7a): "Technical Information"
1. Back-to-back coupled Passive Repeater calculations. 2. To make this spreadsheet
more useful I have made this spreadsheet more user friendly by putting some
"buttons" so that one can select the values by using these buttons without typing or looking for the
other sheets. 3. Provision to view/analyse the link
graphically ( Addition of : Path Profile) over a approximated Terrain. 4. A "Technical Information"
page has been added in order to have easy understanding of the principles involved in
a Microwave Link Designing. Also, more automated buttons have been added. 5. Now you
can select any one of the THREE frequency bands, namely 15 GHz, 18 GHz and 7 GHz. Each band is
provided with 6 frequency spots. The same provision is there for Radio selection too. 6. Added
the provision to use this utility globally and it can be done just by selecting the appropriate part
of the globe. Additionally, the facility to explore different type
of geographic clutter has also been introduced. Passwords can be furnished
on request.
NEW (v7): "Technical Information"
Added the provision to use this utility globally and it can be done just by selecting the appropriate
part of the globe. Additionally, the facility to explore different type of geographic clutter has also
been introduced.
NEW (v6): "Technical Information"
Select any one of the THREE frequency bands, namely 15 GHz, 18 GHz and 7 GHz. Each band is provided
with 6 frequency spots. The same provision is there for Radio selection too.
NEW (v5): "Technical Information"
A "Technical Information" page has been added in order to have easy understanding of the principles
involved in a Microwave Link Designing. Also, more automated buttons have been added.
NEW (v4): Graphical Link Analysis
Provision to view/analyse the link graphically ( Addition of : Path Profile) over a approximated
Terrain.
NEW (v3): Selection Buttons
To make this spreadsheet more useful I have made this spreadsheet more user friendly by putting some
"buttons" so that one can select the values by using these buttons without typing or looking for the
other sheets.
NEW (v2): Passive Repeater worksheet
Back-to-back coupled Passive Repeater calculations. Use: 'passive' to unlock the worksheet to edit
values.
Hope this will suffice. For further clarification/suggestion feel free to contact under signed.
Thanks and with warm regards,
Alok K. Tiwari Head Network Planning Idea Cellular Ltd Delhi (INDIA)
alok.tiwari@idea.adityabirla.com
aktiwari@hotmail.com Mobile # +91 9990009370
|
