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Author Topic: RF analyzer  (Read 5349 times)

David Sturzenbecher

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RF analyzer
« Reply #10 on: November 06, 2015, 11:50:22 pm »

The DTV dongle unit? Cheap price.  I ordered one.  I cannot even begin to explain how hopeless I think it is.  In my view, it is beyond understanding how poorly this performs.

Get anything else.  Get an old shoebox, draw on it with a sharpie,  and pretend you have an analyser.  It will be just as useful.

I tried one too....It showed me where TV channels were located....it also showed me a lot of garbage that I would have thought was real if i didn't have a TTI.   I was unimpressed, and then used the dongle to write a Raspberry Pi RF scanner Python program. It works about as good as the computer software version.
« Last Edit: November 07, 2015, 07:34:33 am by David Sturzenbecher »
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Keith Broughton

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Re: RF analyzer
« Reply #11 on: November 07, 2015, 06:20:53 am »

The DTV dongle unit? Cheap price.  I ordered one.  I cannot even begin to explain how hopeless I think it is.  In my view, it is beyond understanding how poorly this performs.

Get anything else.  Get an old shoebox, draw on it with a sharpie,  and pretend you have an analyser.  It will be just as useful.
I hope they work reasonably well as I just ordered 6 of them. These are for some techs I work with that just need a basic scanner.
Will compare to my Win Radio system and if they are really bad, just send them back.
If they work as well as an RF explorer , I will be happy.

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Pete Erskine

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Re: RF analyzer
« Reply #12 on: November 07, 2015, 02:25:44 pm »

There is more to finding usable frequencies than looking for open space on an RF analyzer.

Read "RF coordination for Roadies" for ALL the secrets.
« Last Edit: November 07, 2015, 02:36:46 pm by Pete Erskine »
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Pete Erskine
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Pete Erskine

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Re: RF analyzer
« Reply #13 on: November 07, 2015, 02:44:05 pm »

do you want to find/plan frequencies before you arrive?   If you do not have a rf scanner you can lock out (reassign)the bad frequencies, recalculate and get new ones when you get to the new venue. 

I like setting up a rf scanner and letting it run several hours at a location and then assigning channels.  This works if you have time.  Also make sure you add to your data base the frequencies the venue is using.  There are many programs that will help you get close, just because the program/scanner says you have good frequencies does not mean you will have a good day!   have back up wireless and extra frequencies available. 

note:
was at a location 5 days, 9 wireless, everything worked great, last day took a 2 second hit on all the wireless.  I have no clue where/what happened.   

jd

Mainly you need the TV station scan, both outside and inside your venue. Long scans are nice but wont protect you from Roaving ENG crews.  Read http://www.bestaudio.com/spectrum-scans/
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Pete Erskine
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ProSoundWeb Community

Re: RF analyzer
« Reply #13 on: November 07, 2015, 02:44:05 pm »


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