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Antenna Distribution
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- čas přidán 16. 03. 2017
- Peter Schneider gives an overview of antenna distribution for bags, carts, and installations, covering theory and best practices for RF signal management using products from Professional Wireless, Lectrosonics, Betso, Audio Limited, PSC, Audio Wireless, RF Venue, Shure, and more!
Cited Links:
* All About Antennas Video: • All About Antennas
* RF Venue Spotlight Demo Video: blog.rfvenue.co...
* Coax Cable Attenuation Chart: www.w4rp.com/re...
Antennas:
* Lectrosonics PDA Shark Fin Antenna: www.gothamsoun...
* Lectrosonics SNA600A Dipole Antenna: www.gothamsoun...
* Professional Wireless Domed Helical Antenna: www.gothamsoun...
* Betso Sharkie Shark Fin Antenna: www.gothamsoun...
* RF Venue Diversity Fin Antenna: www.gothamsoun...
* RF Venue Spotlight Antenna: www.gothamsoun...
* Shure UA860SWB Passive Omnidirectional Antenna: www.gothamsoun...
Active Distribution:
* PSC RF Multi SMA 1x8 Antenna Splitter: www.gothamsoun...
* Professional Wireless Four Zone Multicoupler: www.gothamsoun...
* PSC RF MultiMax: www.professiona...
* Audio Wireless DADM226 Diversity Antenna Distribution Module: www.gothamsoun...
Other gear:
Lectrosonics Bias T Coaxial Power Inserter: www.gothamsoun...
Lectrosonics Passive RF Splitters: www.gothamsoun...
Lectrosonics UFM50: www.lectrosonic...
Once you notice the ehms, you can’t focus on anything else ^^
I know! Everyone knows you can't go more than 50 ehms when you talk about RF Coax!
do you have any antenna solution for digital systems that work at 2.4ghz .. i have 4 sennheiser ewd1 and am having many problems.
I found this antenna model for shure GLX-D microphones (GLX-D PA-805Z2 RSMA - Shure)
would it be possible to use these antennas in the sennheiser ewd1 system?
I do not know what to do to solve these problems anymore
thank you
I am about to try setup for my wedding . I have the same problem .
Hey Peter, I have the PSC RF Multi paired with 6 lectro 411's 3 blk 21, and 3 blk 25, with ALP620's. I get poor strength going passive, without using amp power but I feel like I'm way too close when I have it on. I get better signal with the standard whips.
I also understand the PSC RF multi is NOT filtered so it is subjected to easier interference with things on set like walkies, tera dek, etc.
I heard the Audio Wireless Ltd DADM266 might solve these problems. Have you had a comparison between the two and have any thoughts?
Hi! I have one antenna: a Dipole in V Inverted, and two reveivers, one a Yaesu and a KiwiSDR (remote receiver) What is the solution in this case? Thanks.
Nice video! Is it possible to take a receiver that has only one sma antenna and split the signal into an A and B distribution system connected to a RF venue that has both a shark fin and a dipole?
sir if im using zoom f8 and senheiser receiver/ transmitter,may u show me how to use rf antenna,thanks
You would need to have your Sennheiser receivers modified to use SMA antennas. Then you can connect the antenna distribution to the SMA connectors on your receivers. Here is more information: www.allistairjohnson.com/mods
alternative rf distribution 24 way and 12 way with dual internal power suplies ultralightsound.co.uk/product/12-24-way-radio-microphone-antenna-distribution-suitable-for-sennheiser-shure-trantec-audiotechnica/
Lots of good detail information. Thanks.
I´m still in doubt. I have Lectros 21s1 Blk 21, 22, 24 and 25. My set up is always a sound bag. I´ve been having a lot of problems with distances over 15 yards. What exactly do I need to set up a Sharkie or a PSC antenna for better reach??? Thanks
Sorry for the late reply. How are you coordinating your freqs?
Hey Peter! I have a question; you talked about the directionality of the shark fin antenna being more like a shotgun, but what would be the directionality of the SNA antenna? I’m thinking of getting those for my bag setup!
An SNA antenna is omni directional.
Nick Huston thanks man!
Quick correction on that! It's actual toroidal / donut shapped.
Nick Huston so it’s coming from all sides except the bottom and the top of the antenna?
Renaud Bonneville that's right!
You mentioned at least 3 or 4 receivers to be used with an external antenna, but if course i may want to use it also with 1 receiver, for instance an ucr411. What is the real benefit with only one receiver with external m directional antenna. Of course without any rf distro.
A single directional antenna used with a single receiver like the UCR411 would work similarly to using that same antenna powered distribution. The directional antenna would give you a better antenna, that can hopefully be placed in a better spot above or around obstacles / people, and would give you additional gain in the direction it is facing. Just make sure the antenna you are using is passive since the 411 doesn't have bias power.
@@njh209 MAny antennas on market are active, can I easily exclude the amp and use it as passive?
@@francescobrillante3452 it depends on the antenna. Some active antennas will default to being passive if there is no power applied some will not. Passive antennas are less expensive so I recommend those as a starter.
@@njh209 I've seen some from this company leicozic, aliexpress brand. All of them are sold as active. If I am going to use them on the bag with 50 cm cable should I set them as 0 db gain ?
@@davidaliperti I'm not familiar with those brands, but yes, typically with a short cable run you do not want or need to add amplification
24:35 Curious, when you say: set the antenna's gain to overcome the losses of cable length/splitters. Are we basing the needed make-up gain by visually watching and working-up the receivers Rf indicators to 100%? Would that be an over-simplification or accurate gauge?
Not an oversimplification at all, but doing it that way can unnecessarily increase noise in the system. Ideally the amplifier at the antenna should be set to overcome the losses of the system downstream (ie between the amp and the receiver, including cable and splitter). These figures are knowable - there are tables online and spec sheets for the splitter.
Thanks Peter. Makes perfect sense.
Hello . Thank you for the great review ! as always a blast to watch ! I use the dadm 226 and audio wireless true diversity units. 2 audio wireless units and those go out to 2 bnc antennas . the units tend to function fine but once i am out of direct line of sight the signal goes down sout. i still havent fixed this issue .... i am really interested in the betso sharkie - will one antenna work with 2 receivers ? and how do i get both receivers connected to the antenna ?
Sorry for the late reply - you should use 2 antennas for diversity reception.
Thanks for the awesome video. Curious, how can I connect my Lectrosoinics T4 transmitter for antenna distribution for my IFB's?
An SNA600a works great with a T4.
@@njh209 just connect it directly?
@@jmendel8 yes with a 50 ohm antenna cable.
@@njh209 cool thanks, man. I'm soon getting into distribution gear. My workflow is as planned, Get my 411's or SRc's antennas wired up to a PSC distro box (BNC to SMA cables), that outputs to 2 BNC cables attached to two new Besto fins or Lectro SNA's. Then my T4 will be rigged up to a Besto or SNA with a direct cable. A total of 3 fins/antennas. Does this make sense Nick? Thank you for your time.
thank you so much.
Best Antenna Distributionfor sennheiser G3 wireless because within 30 feet i'm having RF issue.
You might actually be too close thereby overloading your receiver. If your antenna has a pad, try turning the sensitivity down.
You would need to have your G3 antenna modified to SMA. Then you could either hook an antenna directly into it or if you have multiple systems use any of the distribution systems mentioned in the video with an external antenna.
34:00 Appreciate seeing a fellow southpaw with horrible handwriting. :-)