What Do You Want To Know About Wireless?

Hi Dan,

While it's probably outside the scope of your testing, it would certainly be nice to know the manufacturer's technical capabilities and policy regarding transceiver modifications if (and when) the FCC's C Band auction makes this frequency spectrum unusable for us. In recent correspondence with Sennheiser, they've advised me "no can do" - their G2 Evolution Series cannot be modified, even at the depot level. I suspect the higher end companies would agree to modify the units, even if the cost was significant.

Something to consider if you want to write the respective manufacturers in your "spare time" <wink>

Warm Regards, Michael
 
Hey Dan I'm really looking forward to the article.

I've been looking at the G2 500 (with Cos-11 or whatever else is recommended) for some time now but haven't taken the plunge. I don't really know anything about wireless (or sound in general!) so I think I'm definitely in your target audience and am very much looking forward to the Hints and Tips/dummies guide section.

I found this handy fequency chart the other day.
http://www.northernsound.net/Sales/Wireless/sennheiser/freqchart.html

btw, I'm going straight to HVX - no mixer.

Ian

EDIT: Oh yeah, looking forward to your comments Oleg.
 
Hi fellas,

How about a comparison of the 200 series as well?

Will try to include but not sure if Lectro will loan me that $$$ of gear. If I can only get two, they will be the 100 and 400. The 400 is far superior to the 200 series in my experience and all of the people who cannot afford the really pro stuff will still go for the 100 series.

If they will loan me three systems, I will include the 200 system.

Thanks for the suggestion.

Dan
 
Hi Dan,

While it's probably outside the scope of your testing, it would certainly be nice to know the manufacturer's technical capabilities and policy regarding transceiver modifications if (and when) the FCC's C Band auction makes this frequency spectrum unusable for us. In recent correspondence with Sennheiser, they've advised me "no can do" - their G2 Evolution Series cannot be modified, even at the depot level. I suspect the higher end companies would agree to modify the units, even if the cost was significant.

Something to consider if you want to write the respective manufacturers in your "spare time" <wink>

Warm Regards, Michael

Good suggestion and I agree. The spectrum is disappearing rapidly and I am not sure what sound mixers will be doing with wireless in 3-5 years.

That will definitely be an angle with this article, I would like to interview and get quotes from each of the manufacturers about their medium to long term plans.

Dan
 
Hey Dan I'm really looking forward to the article.

I've been looking at the G2 500 (with Cos-11 or whatever else is recommended) for some time now but haven't taken the plunge. I don't really know anything about wireless (or sound in general!) so I think I'm definitely in your target audience and am very much looking forward to the Hints and Tips/dummies guide section.

I found this handy fequency chart the other day.
http://www.northernsound.net/Sales/Wireless/sennheiser/freqchart.html

btw, I'm going straight to HVX - no mixer.

Ian

EDIT: Oh yeah, looking forward to your comments Oleg.

Thanks for your kind remarks. Have patience, I am trying to finish up the wired lav article first so you probably won't see this article until the Spring/Early Summer by the time I get all of the systems, do all of the testing, etc.

Best,

Dan
 
Testing suggestions

Testing suggestions

I almost forgot, What specific tests would you want to hear with the wireless systems? Here is what I am thinking but I am totally open to suggestions...

1. Interior interview situation line of sight
2. interior interview situation out of sight
3. exterior presentation line of sight
4. Range test (how far can you have transmitter from receiver before your hear distortions/dropouts?)
5. RF test - not sure exactly how I can do this other than just trying to find a very RF rich enivironment near an airport or military base
6. Separate A/B comparison of using stock anntenas vs. sharkfin and dipole

What else? I know I am missing some possibilties here. Suggestions for what you NEED/WANT to hear?

I will also be doing a construction analysis of each. What is plastic vs. metal, etc. Also a battery life test for each.

I am gearing it towards HD shooters, not professional sound mixers so I will probably not include the AC powered/rack mount systems as I think the only users who would ever consider those types of systems are sound mixers.

Best,

Dan
 
Dan,

It would be interesting, though probably a pain in the butt, to hear the difference of each of the leading lavs with each of the kits - for example, a Lectro 4xx with B6, EMW, COS-11 and maybe a DPA or MKE2 and the stock Lectro 150. Or just pick one or two samples to A/B with. I'm wondering if, for example the B6 performs better or worse with a particular wireless setup.

One thing I don't remember seeing on your list is the plug on Tx's. I think that would be interesting too, to look at especially in terms of a wireless boom. :-)

Thanks for the great work!

Phil
 
Dan,

So far your list looks great and I'll give this some thought for additions. So far my only addition would be to include the infamous interference test from a GSM cellphone. This would be easy enough to measure GSM Buzz - on the GSM phone's browser, download a page and measure the increase in baseline noise on the wireless receiver (record the audio via software and observe the spikes without anyone speaking on the transmitter).

GSM Buzz is attributable to EMI at 217 Hertz registration, with lots of harmonics blasting everywhere. I'm doubtful that there's much filtering performed in our gear, but perhaps some are better than others. My thought would be do a quickie test, find out which is "best" at a reasonable distance, then see how the other's stack up against the best in class.

There are quite a few websites that discuss the theory of GSM Buzz - a few discuss counter-measures. Here's a good one with audio samples in a PowerPoint presentation.

Thanks again for querying us for input.

Warm Regards, Michael
 
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