[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Discuss-gnuradio] Mobile can not access to the OpenBTS

From: David Burgess
Subject: Re: [Discuss-gnuradio] Mobile can not access to the OpenBTS
Date: Fri, 7 Aug 2009 20:39:40 -0700

That low power level does not sound right. The power level at the tx connector should be around 20 dBm.

Note the we recommend terminating the transmit connector to prevent unlawful emissions. Plenty of power leaks out of the USRP for desktop testing, even with a termination. Absolutely do not use any kind of amplifier unless you are licensed to do so.

Are you sure you are checking the correct connector on the correct board?

Also, you can subscribe to an OpenBTS-specific discussion list:


Since the lifting of the injunction that list is now public, so you can subscribe yourself. You can find several users there with successful, running OpenBTS systems.

-- David

On Aug 2, 2009, at 7:00 PM, jimmyzhang wrote:

     We use USRP and 2 RFX900 boards without ISM band filter.All the
necessary software are installed.
We found the power of the TX antenna was very low,which was -48dbm.There are
questions we need your  help to answer.
1、Do we need a Power amplifier? What kind of Power amplifier is suitble
for us?
2、Is there some limitation of Mobile which can access to the OpenBTS?

     Thank you for your attention and your help!
View this message in context: http://www.nabble.com/Mobile-can-not- access-to-the-OpenBTS-tp24784065p24784065.html
Sent from the GnuRadio mailing list archive at Nabble.com.

Discuss-gnuradio mailing list

David A. Burgess
Kestrel Signal Processing, Inc.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]