Jump to content
Solid Goldberger

2.4 ghz Frequency Scanning App

Recommended Posts

Hiya friends:

In the Zaxcom ERX series manual, it says:

"TIP: There are several smart phone apps that will scan what wi-fi frequencies are being used in your area. This can be useful in selecting a clear frequency."

I just looked on the App Store and have found nearly a hundred different versions of this, none of which seem exactly right for our purposes in this application. Can anyone recommend an app that's working for them to help choose Zaxnet frequencies?

Thanks in advance,

E.

Share this post


Link to post
Share on other sites

last time i looked, i couldnt find anything that didnt require me buying additional hardware (WIPry i think) or possibly spending more money than i wanted.

 

but i have the rf explorer which can have a 2.4GHz module which will do the job.

Share this post


Link to post
Share on other sites

There are signal indicators in the extended menu of the erx. You can scroll through freqs. And use that to watch the level of interference.

I use my rf explorer or wieye if i don't have the explorer with me.

Share this post


Link to post
Share on other sites

If your iphone is jailbroken, you can find "WiFiFoFum" on Cydia which works okay. You have to convert the wifi channels to specific frequencies but it's not that hard.

 

Or if you want to lug a laptop around, "iStumber" works well on my macbook pro.

Share this post


Link to post
Share on other sites

To be honest i ve always set my erx's to 2.475 and never ran into problems with them really. It s a sctrach track to camera and if the pack loses signal it will keep on providing tc so i don t make a big deal out of it really.

I m glad to know now how to solve issues if i run into them now though.

Share this post


Link to post
Share on other sites

To be honest i ve always set my erx's to 2.475 and never ran into problems with them really. It s a sctrach track to camera and if the pack loses signal it will keep on providing tc so i don t make a big deal out of it really.

I m glad to know now how to solve issues if i run into them now though.

I don't know exactly why, but it's in the manual, and Howy has recommended using even numbered frequencies. I haven't noticed the difference, but it's supposed to perform better.

Share this post


Link to post
Share on other sites

I use WiEye app for Android and anytime I do a scan 2.412 & 2.462 seems to be the most common frequencies.

As Wandering Ear mentioned above about even freq allocation I have tuned my Nomad and ERXs to 2.430 and TRXs to 2.468 with increments of .002 for additional TRXs to allow monitoring from the ERXs.

Trev

Share this post


Link to post
Share on other sites

You can also step on WiFi networks with your tx.  I've disrupted networks on some of our private home locations.  Didn't realize it was me causing the problem until I turned off the Nomad and it came back.

Share this post


Link to post
Share on other sites

You can also step on WiFi networks with your tx. I've disrupted networks on some of our private home locations. Didn't realize it was me causing the problem until I turned off the Nomad and it came back.

This is especially bad when using a high powered amp like the 1 watt i use on my cart. Easy to render a wifi network useless. Many routers default to automatic channel assignments, which usually alleviates the issue.

Share this post


Link to post
Share on other sites

la_RF_Explorer_RFEM2.4G.jpg

 

RFEM2.4G is an expansion module for RF Explorer WSUB1G. It can be plugged in your RF Explorer unit to extend the coverage to 2.4GHz frequency band. It gets attached internally to the RF Explorer main board and exhibits a second antenna connector to cover the new band.

•  Easy to plug in your RF Explorer unit, compatible with all models.
•  Extend band coverage to popular 2.4Ghz technologies such as Wi-Fi, Bluetooth and ZigBee
•  Extend internal FLASH and RAM memory for additional capabilities
•  Lifetime free firmware upgrades available, open to community requested features

Specifications:
Frequency band coverage: 2400-2484 MHz
Standard SMA 50 ohms connector, a matching antenna is included
Amplitude resolution: 0.5dBm
Dynamic range: -105dBm to -15dBm
Absolute Max input power: +5dBm
Average noise level (typical): -105dBm
RF generator amplitude: -30dBm to +1dBm
Frequency stability and accuracy (typical): +/-10ppm
Amplitude stability and accuracy (typical): +/-3dBm
Frequency resolution: 1KHz
Resolution bandwidth (RBW): automatic 58KHz to 812KHz

 

For EU users: http://audiosense.be/?go=products&cat=5

Share this post


Link to post
Share on other sites

Wanted to bring this topic up again to see if anyone had any updates on 2.4 scanning. I have a macbook air on set with me all the time and recently bought a laptop app wifi scanner. It works great to show wifi signals in the area to help work around existing 2.4 spectrum activities, but does not show zaxnet activity at all even though qrx and camera link are powered on and falling within the visual frequency map. So it is my understanding these are strictly network scanners and not showing everything in the air like other 2.4 devices. Has anyone come across a laptop app that lets you see everything or is a hardware scanner still the only option? The 2.475 works great until I want to add a 2nd or 3rd zaxnet signal then it seems better chances to step or be stepped in the lower relms...

-ken

Share this post


Link to post
Share on other sites

I was told (by esteemed mixer Jason Todd) that if your Zaxnet is coming out of a Nomad you should pick an even frequency (i.e. 2.474).  Something to do with how the elves put out the signal.  They like even numbers.  I maybe got a little more range out of it, not sure.

 

Also, you could just get a cheap Android phone.  Ethan I have an old one that is worth about $10.  I'd gladly trade it for that nice glass of wine you treated me to.

Share this post


Link to post
Share on other sites

I was told (by esteemed mixer Jason Todd) that if your Zaxnet is coming out of a Nomad you should pick an even frequency (i.e. 2.474). Something to do with how the elves put out the signal. They like even numbers. I maybe got a little more range out of it, not sure.

Also, you could just get a cheap Android phone. Ethan I have an old one that is worth about $10. I'd gladly trade it for that nice glass of wine you treated me to.

I have been meaning to try this even number thing based on earlier posts but i am using a 633 and Camera link plus a few qrx's. Figure it cant hurt in any case. What app is avail for android that is different than a typical wifi scanner app that is avail for laptops? I certainly would check it out even via a friends phone to see how it works

-Ken

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


×