Go Back   ControlBooth > CB Discussions > Sound
 
    Advanced Search

Notices

Sound A place to discuss sound reinforcement and design.


Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old March 10th, 2009, 07:48 PM

 
Join Date: May 2008
Posts: 424
Thanks: 4
Thanked 8 Times in 7 Posts
Default Wireless antennas-paddles

Question about paddle antennas for wireless.
Is it practical/acceptable to use one paddle and one omni, or both the same?

The rental house I go though only includes 1 for free, the second costs a few hundred to rent. I want to use paddles for distance and better RF, but I'm already proposing a 3000 dollar rental!
Reply With Quote
Old March 10th, 2009, 08:57 PM
waynehoskins's Avatar
 Premium Member 

 
Join Date: Jul 2008
Location: Arlington, TX
Posts: 623
Thanks: 18
Thanked 14 Times in 13 Posts
Default Re: Wireless antennas-paddles

One each way would probably do fine.
Reply With Quote
Old March 10th, 2009, 09:07 PM

 
Join Date: Dec 2008
Posts: 33
Thanks: 1
Thanked 3 Times in 3 Posts
Default Re: Wireless antennas-paddles

Hmmmm, Interesting.
Anything is acceptable as long as it improves the sound(safety first).
Is this practical? Not so much.

As long as you have the two antennas spaced apart and in true diversity set-up, you will notice no difference. But like you said, a paddle has better RF at distance and directionality.

However, if that only applies for mics, if your using IEMs, a omni is rarely used, and 1 paddle will suit your fine.



I would also recommend finding a new rental house... seems like they nickel and dime you.
Reply With Quote
Old March 10th, 2009, 10:56 PM
DaveySimps's Avatar
CBmod
 Premium Member 
 
Join Date: Feb 2007
Location: Marine City, MI
Posts: 1,305
Thanks: 3
Thanked 26 Times in 26 Posts
Default Re: Wireless antennas-paddles

I agree. It will work technically speaking, but not the best way to do it. Seems like you are being charged a lot just for different antenna. I would get other quotes.

~Dave
Reply With Quote
Old March 11th, 2009, 12:44 AM

 
Join Date: May 2008
Posts: 424
Thanks: 4
Thanked 8 Times in 7 Posts
Default Re: Wireless antennas-paddles

Quote:
Originally Posted by DaveySimps View Post
I agree. It will work technically speaking, but not the best way to do it. Seems like you are being charged a lot just for different antenna. I would get other quotes.

~Dave
They're actually the only local place who rents UHF-R from Shure. Let's not get into the debate about the gear, it's all I'll pay money for to rent. (or start a new thread bashing me..i don't really care).

For the record, they don't usually nickel and dime. They give you a huge selection of mics and capsules, give you as much xlr or 1/4 inch as you need, adapters, etc etc for free.

So I can't complain too much...
Reply With Quote
Old March 11th, 2009, 03:44 AM
waynehoskins's Avatar
 Premium Member 

 
Join Date: Jul 2008
Location: Arlington, TX
Posts: 623
Thanks: 18
Thanked 14 Times in 13 Posts
Default Re: Wireless antennas-paddles

If you know your operating frequencies (and if they're close enough) you could construct a simple beam with parts from your junk box. Not amplified, no, but still gain over a vertical.

Alternatively, and certainly more flexible, you could construct a log-periodic. That's all a paddle is, a log-periodic, usually with a low-noise preamp at the feedpoint. A log-periodic is a touch more difficult to construct because of the electrical phasing of the elements, but it's still pretty easy. And it behaves as a three-element beam at pretty much all frequencies in its "passband", so you still have gain over a vertical.

So there's a cheap junkbox solution that should offer you gain over just a vertical on that second diversity channel. Not amplified, no, but if your feedlines aren't terribly long it ought to work fine.

Another option is a television receiving antenna, something like the bowties in front of a reflector plane. I've used that before. Not very directional, but still some gain over just a vertical .. and you or somebody probably has one of those knocking around.
Reply With Quote
Old March 11th, 2009, 02:20 PM
DaveySimps's Avatar
CBmod
 Premium Member 
 
Join Date: Feb 2007
Location: Marine City, MI
Posts: 1,305
Thanks: 3
Thanked 26 Times in 26 Posts
Default Re: Wireless antennas-paddles

I would never bash the Shure UHF-R gear, it is excellent stuff. Sounds like you are stuck a bit, as far as vendors go. There are a lot of people in that situation I am sure.

~Dave


Quote:
Originally Posted by Blah067 View Post
They're actually the only local place who rents UHF-R from Shure. Let's not get into the debate about the gear, it's all I'll pay money for to rent. (or start a new thread bashing me..i don't really care).

For the record, they don't usually nickel and dime. They give you a huge selection of mics and capsules, give you as much xlr or 1/4 inch as you need, adapters, etc etc for free.

So I can't complain too much...
Reply With Quote
Old March 16th, 2009, 01:01 PM
CBmod
 Premium Member 
 
Join Date: Jul 2005
Location: Sydney, Australia
Posts: 1,799
Thanks: 13
Thanked 37 Times in 33 Posts
Default Re: Wireless antennas-paddles

Note these things:

There are 2 types of paddle, one with a preamp and one without. If you have an active one, you will notice a gain difference at the receiver.

If you are using a non paddle antenna say a TV antenna, remember to polarise it vertically. Most TV transmissions downunder are horizontally polarised and hence we have our antennas horizontal, not sure about your situation. (Vertical polarisation would have been so much better - far fewer issues with birds sitting on antennas )

If you know which band you are working in, you might even get away with a Yagi since you may not need the frequency range of an LPDA.

You may also consider building a helical antenna, they are particularly good at dealing with those that don't have antennas perfectly vertically polarised

UHF-R is great gear.

As always, try and keep your feedlines as short as practical.

Oh and don't forget that so long as there is no need for power feeding, you can mix and match brands.

And chances are that these guys have one batwing left in inventory for the time you want it and the coupla hundred represents a cross hire...

Last edited by Chris15; March 16th, 2009 at 03:11 PM..
Reply With Quote
Old March 16th, 2009, 11:07 PM

 
Join Date: Mar 2005
Location: Alexander, NY
Posts: 196
Thanks: 1
Thanked 3 Times in 3 Posts
Default Re: Wireless antennas-paddles

I've had one paddle and one omni work fine in a pinch. Making an antenna distribution box supply twice as many mics as it was designed for. Four mics saw the paddle on channel A and the vert on channel B and the opposite for the other four. Guess which channels the mics preferred... yeah, it was the wierdest thing seeing diversity mics pegged on one channel the whole night. Worked just fine though, no drop outs.
__________________
_________
Jon Dayton
BNB Sound
"I've been getting ready for this gig my whole life..."
Reply With Quote
Old March 21st, 2009, 09:20 PM
Andy_Leviss's Avatar
Senior Team
 
Join Date: Dec 2004
Location: NYC
Posts: 479
Thanks: 1
Thanked 14 Times in 13 Posts
Default Re: Wireless antennas-paddles

Quote:
Originally Posted by Blah067 View Post
Question about paddle antennas for wireless.
Is it practical/acceptable to use one paddle and one omni, or both the same?

The rental house I go though only includes 1 for free, the second costs a few hundred to rent. I want to use paddles for distance and better RF, but I'm already proposing a 3000 dollar rental!
Will it work? Perhaps, if you're not in too hostile an RF environment. But that's an entirely different question than whether it's acceptable or practical, in which case the answer is that it is absolutely not in any way, shape, or form, and a shop that would do something as questionable and that makes me doubt their knowlege, and quality of both their service and their gear immediately. That's a huge red flag.

The omni whip COMPLETELY defeats the purpose of a directional paddle. The whole idea is to increase signal gain in your usage area, while also increasing rejection of outside signals that might cause interference.

Not to mention that a few hundred for a paddle is highway robbery (I'm assuming that's a weekly price?), even here in NYC, which tends to be on the high end of the price scale.
__________________
Sound Engineer, currently working in a NYC sound shop
Member IATSE Local 1
One From The Road: Tools, Toys, and Tales for the Theatrical Technician
Reply With Quote
Reply

Tags
antennaspaddles, wireless

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Wireless? Sound 23 January 21st, 2009 04:16 PM
FCC might kill wireless mics Oldschool Sound 33 October 6th, 2008 07:11 PM
Moving antennas for wireless mics chslighttech Sound 14 May 12th, 2006 10:16 AM


All times are UTC -4. The time now is 07:09 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.3.1 
Advertisement System V2.6 By   Branden

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80