Monday, April 23, 2007

Horizon Files for License to Test WCS Interference With SDARS

Today, Horizon Wi-Com, LLC, applied for an experimental license to test the effect of out-of-band emissions on satellite radio. They plan to test the effects in the following markets:

They intend to use a Navini modem that is not presently type-accepted. The Navini modem is described as:

"The Navini modem to be used during testing is type accepted under ID PL6-2500-PCM19-R3 for use int eh MMDS bands. In its current configuration it operates with out of band emissions levels at channel edge of 43+10Lop (P). The emission designators for the device are 1M00F9W, 800KW7D and 1M6W7D. The Modulation is F9W and W7D. The power output is 23 to 25 dBm, depending on operating modulation.

Testing will occur in one hour segments in the above markets. The purpose of these test are to determine if there is any interference with satellite radio. This could be significant and is definitely worth watching. Keep your ears open--if this is approved--for any interference in these cities. The locations are given below:

Should there be any interference, we suggests using the contact information filed with this application:

First Name: Thomas
Last Name: Gutierrez
Title: Regulatory Counsel
Phone Number: (703)584-8678
E-Mail Address:

Horizon gained most of its WCS spectrum from a deal with Verizon.

In similar news, Samsung will be testing its WiBro products in the WCS band. Its experiment is described as:

"To demonstrate WiBRO, which is the South Korean version of WiMAX, also known as 802.16e technologies. WiBRO was architected to allow users to move between base stations while placement of these base stations remains at strategic locations(i.e. best coverage possible). Engineers will evaluate the performance of the WiBRO products in an environment consisting of both mobile users and mobile base stations. Technologies, such as WiBRO are attractive to the Army in order to provide an affordable wireless technology to the warfighter in a realtively short period of time. The base stations will in the back of a vehicle moving around a simulated battle field."

They will testing in the 2300 to 2310 MHz band, a little south of the Sirius Satellite band.

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