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  #1  
Old 07-15-2014, 12:52 AM
VladimirG VladimirG is offline
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Default Andrew DB586-XT antenna file in TSI-804 format

Hey guys,
Does anybody know how to convert TSI-804 adf file to Pathloss 5 asd format?

Thanks!
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  #2  
Old 07-21-2014, 05:11 PM
Jerry Sutherland Jerry Sutherland is offline
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I believe you are referring to the TIA-804 standard. If so, this is very close to the NSMA standard that can be imported with the Pathloss AntRad software.

I just did a test. Taking a TIA-804-A antenna file (for an X-pol antenna), I replaced any slant polarization tags (SLL/SLL with V/V ... and SLR/SLR with H/H) then renamed the file with an ".adf" filename extension.

AntRad seemed to import this just fine.

I hope this helps.

Jerry
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  #3  
Old 07-21-2014, 09:21 PM
VladimirG VladimirG is offline
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Default Andrew DB586-XT

Jerry,
Thank you for your answer. You are right I tried to open TIA-804 format antenna file but I received error message "Ant_rad.exe has stopped working".
I am able to open NSMA files for some Kathrein antennas and save it in asd format but not for Andrew DB-586XT.

Vladimir
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  #4  
Old 07-21-2014, 10:00 PM
Jerry Sutherland Jerry Sutherland is offline
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Vladimir,

The main problem I have seen is that if the NSMA or TIA-804 files use the slant polarization flags (the "SLL" and "SLR" listed above) then they fail when you try to import them into AntRad. For that reason, I look at the files and make sure that "Polari:" fields use "H/H" or "V/V" in place of the slant flags. In my case, I change them in the manner I mentioned in my first message.

Of course, I usually convert from the NSMA WG16.99.050 format, which like I mentioned is very much like the TIA-804 format since the TIA standard was based in the NSMA standard. The NSMA standard is a free download from www.nsma.org, however the TIA standard is not free. Still, you could use the NSMA standard as a reference when the import problems occur.

My test conversion was a Kathrein antenna since I work for them. :-)

Let me know if I can help.

Jerry
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  #5  
Old 07-21-2014, 11:00 PM
Jerry Sutherland Jerry Sutherland is offline
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Vladimir,

I looked at that TIA-804 file and the first problem is that line #4 for the file (DESCR1:,) exceeds the 80 character limit. Removing all the text (after the comma) on that line allowed AntRad to import the file.

However, the results are odd because it appears that AntRad has reversed the sign of all the positive pattern values (8.1 becomes -8.1).

I have never seen this happen before, but then again all the files I create are in relative dB with the gain in dBd (DBD/DBR) and they have both in dBi (DBI/DBI). At first glance, the Andrew file looks good with the exception of line #4.

I'll look closer at what is happening as I have time.

Jerry
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  #6  
Old 07-21-2014, 11:02 PM
VladimirG VladimirG is offline
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Default Andrew DB586-XT

Jerry,

Could you please check the Andrew adf file?
Attached Files
File Type: zip DB586-XT_Tia.zip (2.8 KB, 1 views)
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  #7  
Old 07-22-2014, 12:20 AM
Jerry Sutherland Jerry Sutherland is offline
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Vladimir,

I had to change the "GUNITS:" (line #9) to "DBI/DBR" then subtract the gain of 8.1 from all the "FSTLST:" data fields. Basically, this is to normalize all the pattern data to a max of 0 dB (relative). This has to be done for both the AZ and EL sections. Fortunately, this antenna is vertically polarized so we don't have to worry about the polarization flags.

Anyway, I'll see if I can figure out how to attach files here and send you the modified TIA file and well as the ASD file.

I do not have the Pathloss software so I can't verify the ASD file. But if negative angles are below the horizon on the elevation pattern ... then this should be good. But please, double check it before using it.

I'll send this message and try to deal with the uploads in the next one.

Jerry
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  #8  
Old 07-22-2014, 12:22 AM
Jerry Sutherland Jerry Sutherland is offline
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Here's the modified TIA file:
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  #9  
Old 07-22-2014, 12:23 AM
Jerry Sutherland Jerry Sutherland is offline
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Or maybe not ... I may not have permissions to attach files here ...
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  #10  
Old 07-22-2014, 12:26 AM
Jerry Sutherland Jerry Sutherland is offline
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I just needed to zip them up. :-)
Attached Files
File Type: zip DB586-XT-00DT-0815.zip (4.8 KB, 1 views)
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