View Full Version : Radio mics


Dennis Cummins
May 24th, 2006, 03:59 AM
Quick question for you audio experts! I live in Ireland, im travelling to the states soon where I plan on purchasing some Sennhiser radio mics (transmitter & receiver) my question is, will these work back in Ireland or is the frequency different in the states?

Sorry this may sound like a stupid question my audio knowledge is not very good. Cheers.

Mark Armstrong
May 24th, 2006, 04:50 AM
The G2 system has a wide array of freqs to choose from so should not be a problen and cost around AU $1000 per channel.

Mark Armstrong
May 24th, 2006, 04:57 AM
The "Tourist" also should have mentioned G2 is Sennheiser's latest entry into the wireless market but is not really "pro" ie non diversity and prone to occasional dropouts hence the price as its aimed at the lower end of the "pro" market and has limitations but is good for most DV apps

Dennis Cummins
May 24th, 2006, 05:14 AM
so do you reckon it will work in ireland then?

Tom Hardwick
May 24th, 2006, 05:38 AM
Yes. It'll also work on the moon and under water.

Mark Armstrong
May 24th, 2006, 06:01 AM
Dennis
Whatever location you have banks of freqs to work with so move around and see what works

Mark Armstrong
May 24th, 2006, 06:19 AM
Dennis

Having said that I think the G2 Senns are the best for the price along with Sony's offering in the same field for relatively cheap rads as they do most things admirably but fall short in some loc apps( occ dropouts) that may not be pertinent to your app. PS I have had some dropouts that were ratheing embarising but in ENG there's little "can we go again"....

Dennis Cummins
May 24th, 2006, 10:10 AM
just rang Senns there who said the ones i bought in the states would not work in ireland so a couple of you guys or wrong im afraid...

Jack D. Hubbard
May 24th, 2006, 10:23 AM
The mics will work anywhere, I believe if you have both the transmitter and the receiver set on the same frequency. I have used mine world wide. The only problem is local RF interference. At 11,000 feet in the Peruvian Andes, the local cops were on the same freq and blew me out. (When you're able, use a cable).

Dennis Cummins
May 24th, 2006, 10:37 AM
well senns said they wont, im no expert but i think you guys are on a UHF freq where as we work off a VHF freq??

Douglas Spotted Eagle
May 24th, 2006, 10:40 AM
(When you're able, use a cable).

Sound advice (pun intended) that unfortunately is heeded far, far too little.

Dennis Cummins
May 24th, 2006, 10:48 AM
does anyone for definite as i can save over 300 bucks if i buy them in the states?? surely senns cant be wrong??

Douglas Spotted Eagle
May 24th, 2006, 10:55 AM
I'm quite sure they are right. Frequency plans vary from country to country. I know I can't use my UHF systems in England, but can in Sweden. Serious problems in Germany on several frequencies, totally usable in Russia on virtually all frequencies. In Brazil, can't use my UHF systems at all, but could use them in Argentina. We carry 6 in our rack, so it's even more complicated, but bottom line is, you need a frequency management plan before going overseas. The same would apply buying from the US for use overseas.

Dennis Cummins
May 24th, 2006, 10:57 AM
Thanks DSE

Greg Bellotte
May 24th, 2006, 03:17 PM
There is "working", and then there is "legally working". If you transmit on a frequency, ANY frequency, and set the reciever to pick up THAT frequency, it will "work". Even on Venus. :-) Sennheiser probably said the US units won't "work" because they know that the frequencies loaded in the US units may not be acceptable for use in other contries. The open channels in the US could very easily be emergency communications, broadcast, or even hotel housekeeping in other countries around the world. Penalties for broadcasting (even for low power wireless mics) on unauthorized channels vary by country. Chances of getting busted on a 30mW transmission are probably pretty slim, but if caught the entire world seems to agree that "ignorance of the law is no excuse". Do yourself a favor and find out from the country you plan on using equipment in, what the regulations and proper channels are. If those laws include a portion of channels in US equipment, you'll be golden.

Douglas Spotted Eagle
May 24th, 2006, 03:27 PM
There is "working", and then there is "legally working".

Exactly. This is what frequency managers do, they manage freq's for events. Most of our concert works are part of a larger event where there are loads of wireless' around, and therefore we have to "check in" before turning anything on or setting freqs. This includes not just video of course, but operations, military, law enforcement, etc, etc.
You definitely don't want to be caught turning on a device in a managed area that isn't part of the plotted allotment.
*can* you use a US device in Scotland? In terms of radio use, most probably. But getting caught isn't cool. We got caught doing this several years ago at the Water Fest in Stockholm. They threatened to confiscate our rack of wireless receivers. :-(

Greg Bellotte
May 24th, 2006, 03:50 PM
Here's a funny (maybe not...) case in point.

http://gizmodo.com/gadgets/portable-media/uk-reconsiders-itrip-ban-176053.php

Jack D. Hubbard
May 25th, 2006, 04:20 PM
Spot is exactly right. If you are working in a highly congested frequency area, or a special event you have to clear with the frequency manager. Example: conventions, Olympics, etc. If you are far out in the boonies overseas where there are no competing radio transmissions, it will probably be OK.