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From: | Marcus D. Leech |
Subject: | Re: [Discuss-gnuradio] Help on choice of daughter board for 40-50MHz experiments |
Date: | Mon, 08 Oct 2012 17:36:21 -0400 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111108 Fedora/3.1.16-1.fc14 Thunderbird/3.1.16 |
On Mon, Oct 8, 2012 at 11:54 AM, Baidoo-Williams, Henry E <address@hidden> wrote:We are looking for a daughterboard to run experiments within the range of 40-50MHz. We have used the basic Tx and basic Rx before but just for routing signals to an oscilloscope probe. Has anyone got any experience with actual transmission and receiving with the basic TX/RX boards? We have not tested yet because we are yet to purchase LF antennae. Any experience with these will be of much help.You can use the Basic RX and TX for those frequencies. You will probably want to put filters between the antenna and the boards for your specific frequencies of interest. Matt
I'll add "and some gain".I use a BASIC_RX on a USRP2 (same sample rate as the N2XX) for a riometer operating between 25MHz and 45MHz. For the project, we built a custom filter board with distributed gain and filtering--doing so helps with any possible aliasing problems, and helps with
sensitivity. -- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org
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