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Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => Wireless and Communications => Topic started by: Nate Zifra on September 21, 2015, 12:00:11 pm

Title: Antenna combiner recommendations for IEMs
Post by: Nate Zifra on September 21, 2015, 12:00:11 pm
My apologies for the "Lounge" level question, but this question is related to wireless IEM's.

I have three transmitters that operate in the following frequency range: 903Mhz-926.50Mhz Bandwidth: 25Mhz range

I can provide more specs if required.  The transmitters  are racked, with the stock antenna's moved to the front of the rack.  This is a mobile rig and the location of the rack to the performers will change based on the venue.  I'd like to investigate using a combiner and an external antenna to provide better reliability (get the antenna up in the air, give more distance from wireless router, etc). 

The closest I've been able to find online is the MIPro AD-808 http://avlex.com/products/ad-808-4-channel-active-antenna-combiner/ (http://avlex.com/products/ad-808-4-channel-active-antenna-combiner/).  Specs say it works into the 960Mhz range, and uses TNC connectors which matches the transmitters. 

Thank you in advance for your help!

Nathan
Title: Re: Antenna combiner recommendations for IEMs
Post by: Henry Cohen on September 22, 2015, 09:41:16 pm
My apologies for the "Lounge" level question, but this question is related to wireless IEM's.

I have three transmitters that operate in the following frequency range: 903Mhz-926.50Mhz Bandwidth: 25Mhz range

I can provide more specs if required.  The transmitters  are racked, with the stock antenna's moved to the front of the rack.  This is a mobile rig and the location of the rack to the performers will change based on the venue.  I'd like to investigate using a combiner and an external antenna to provide better reliability (get the antenna up in the air, give more distance from wireless router, etc). 

The closest I've been able to find online is the MIPro AD-808 http://avlex.com/products/ad-808-4-channel-active-antenna-combiner/ (http://avlex.com/products/ad-808-4-channel-active-antenna-combiner/).  Specs say it works into the 960Mhz range, and uses TNC connectors which matches the transmitters.

The Mipro combiner should, according to the specs, work for your application, as will the RFVenue Combine4 (http://www.rfvenue.com/4-channel-iem-combiner)
Title: Re: Antenna combiner recommendations for IEMs
Post by: brian maddox on September 23, 2015, 12:24:24 am
The Mipro combiner should, according to the specs, work for your application, as will the RFVenue Combine4 (http://www.rfvenue.com/4-channel-iem-combiner)

Nate, you're new so I'll fill you in.  if Henry blesses it, consider that end of thread. 😀
Title: Re: Antenna combiner recommendations for IEMs
Post by: Henry Cohen on September 23, 2015, 09:15:26 pm
Nate, you're new so I'll fill you in.  if Henry blesses it, consider that end of thread. 😀

I'm not blessing it, I simply said based on the specs it should work. Blessings are reserved for reeeeally good barbecue.
Title: Re: Antenna combiner recommendations for IEMs
Post by: brian maddox on September 23, 2015, 10:16:45 pm
I'm not blessing it, I simply said based on the specs it should work. Blessings are reserved for reeeeally good barbecue.

Touché'. 😀
Title: Re: Antenna combiner recommendations for IEMs
Post by: Keith Broughton on October 06, 2015, 07:39:09 am
I struggle a bit with believing the Mipro products are of any real quality.
Maybe I am wrong but they don't seem to be a well known and used brand in the RF world.
Title: Re: Antenna combiner recommendations for IEMs
Post by: Tim McCulloch on October 06, 2015, 09:43:13 pm
I struggle a bit with believing the Mipro products are of any real quality.
Maybe I am wrong but they don't seem to be a well known and used brand in the RF world.

I had the same impression at first.  Turns out Mipro is the OEM for Beyerdynamic wireless and a few other folks.

In the USA they are represented by Ray Rayburn who has a stellar reputation for only handling stuff that really works.
Title: Re: Antenna combiner recommendations for IEMs
Post by: Keith Broughton on October 07, 2015, 06:33:57 am
I had the same impression at first.  Turns out Mipro is the OEM for Beyerdynamic wireless and a few other folks.

In the USA they are represented by Ray Rayburn who has a stellar reputation for only handling stuff that really works.
I stand corrected.