Cordless Microphones

Wireless microphone frequencies can be found scattered throughout the RF spectrum, most often in the 70-74 MHz, 170-220 MHz, and 580-800 MHz ranges. Many modern professional wireless microphone systems are frequency agile - that is, tuneable to different frequencies - to find clear channels and avoid interference, with most operating within unused television channels.

Wireless microphone transmit power levels are normally very low, to reduce the potential for interference. Reception thus requires close proximity or use of directional antennas.

A good overview of wireless microphone systems can be found on the Shure website at http://www.shure.com/booklets/intro/intro_to_wireless.asp

Frequency lists for many models of wireless microphones can be found on the manufacturer's websites. Some manufacturers may just sell a rebadged model made by someone else. A partial list of manufacturers includes:

AKG - http://www.akgusa.com/product.aspx

Audio-Technica - http://www.audio-technica.com/cms/site/f7047a54be93f088/index.html

Azden - http://www.azdencorp.com/

Electrovoice - http://www.electrovoice.com/Electrovoice3/products.nsf/pages/ProductFamily=Wireless%20Microphones

Lectrosonics - http://www.lectrosonics.com/

Nady - http://www.nadywireless.com/index.html

Samson - http://www.samsontech.com/products/brandpage.cfm?brandID=1

Sennheiser - http://www.sennheiserusa.com/newsite/category.asp?transid=cat50

Shure - http://www.shure.com/wireless/default.asp

Sony - http://bssc.sel.sony.com/BroadcastandBusiness/DisplaySubCategory?m=10013&p=10&sp=82

Telex - http://www.telex.com/wirelessmicrophones

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ENTERTAINMENT AND RELIGIOUS EVENTS: (Power limited to 1/20 of a watt)

169.445
169.505
170.245
170.245
170.305
171.045
171.105
171.845
171.905

COMTEK WIRELESS MICROPHONES: (Power limited to...???)

72.1000 ch A
72.3000 ch B
72.5000 ch C
72.7000 ch D
72.9000 ch E
73.1000 ch N
73.3000 ch M
73.6000 ch K
75.1000 ch L
75.5000 ch F
75.7000 ch G
75.9000 ch H
82.5000 ch 6-1
82.8000 ch 6-3
83.8000 ch 6-2
86.8000 ch 6-5

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174.8000 ch 7-2
175.2500 ch 7-4
175.6000 ch 7-6_
176.4000 ch 7-10
178.2000 ch 7-18
178.6000 ch 7-20
179.2000 ch 7-23
180.8000 ch 8-2_
181.2500 ch 8-4
181.6000 ch 8-6
182.4000 ch 8-10
183.2000 ch 8-13
183.4000 ch 8-14
??? ch 8-16
184.2000 ch 8-18
184.6000 ch 8-20
184.8000 ch 8-21
185.2000 ch 8-23
186.8000 ch 9-2
187.6000 ch 9-6
188.4000 ch 9-10
190.2000 ch 9-18
192.8000 ch 10-2
193.2000 ch 10-4
193.6000 ch 10-6
194.4000 ch 10-10
195.2000 ch 10-13
195.4000 ch 10-14
195.8000 ch 10-16
196.2000 ch 10-18
196.6000 ch 10-20
197.4000 ch 10-24
198.7500 ch 11-2
199.6000 ch 11-6

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200.4000 ch 11-10
202.2000 ch 11-18
202.6500 ch 11-20
204.8000 ch 12-2
205.6000 ch 12-6
206.4000 ch 12-10
208.2000 ch 12-18
208.6500 ch 12-20
210.8000 ch 13-2
211.6000 ch 13-6
212.4000 ch 13-10

--Snake Pliskin 15:24, 6 Apr 2005 (CDT)