UHF Spectrum analyzer

Hi all
I'd like to make an UHF spectrum analyzer with an Arduino board. I looked on the forum, and found different projects, but nothing exactly like I'd want to do.

I want to make a stand alone spectrum analyzer, without any connection to a PC, running on batteries or main powered. I already have an antenna with transceiver, which communicates via USB, and uses this chip (http://www.realtek.com.tw/products/productsView.aspx?Langid=1&PFid=35&Level=4&Conn=3&ProdID=257).

The best option for me would be to connect my transceiver to an Arduino Uno via USB, and then gather the data and store it into the arduino, then use other wifi connections such as Zigbee or WiFi to communicate with my PC.

I'd like to know if this is feasible, or if it would be better to buy additional hardware (which is not a problem until the total cost is around 100$). Another big issue is how easy would be to understand the messages coming from the USB transceiver.

Any idea on this?

So, to process FFT at UHF (Ultra-high frequency (UHF) designates the ITU radio frequency range of electromagnetic waves between 300 MHz and 3 GHz) you would need to clock the Arduino at twice the frequency you wish to analyze (600MHz up.) There are ways around this by utilizing preprocessing Hetrodyne circuits Heterodyne - Wikipedia so the answer is a qualified Yes but the caveat is that you need to have HF frequency experience in order to design and implement such a device.

I think the notion is that he already has a Software Defined Radio or equivalent to collect the data, is merely looking at a wireless link to send it to a PC for processing and display.

I already have a SDR radio, which has a USB plug. I'm just asking how to connect it to the Arduino (probably via a shield), and if someone know how hard it could be to interpret the signals coming from the SDR transceiver.

Wondering whether there is such a thing as a wireless "USB repeater" floating around, already implemented ...

I already have a SDR radio, which has a USB plug.

Regrets in not catching the full story, but I am just working on my 1st cup of coffee XD

(I think) What you are asking then is how to make the Arduino a USB host. This would be a good starting article:

Then do a Google on "arduino usb host shield" and take it from there...
http://lmgtfy.com/?q=arduino+usb+host+shield

Ray

Wondering whether there is such a thing as a wireless "USB repeater" floating around, already implemented ...

Not cheap

http://lmgtfy.com/?q=usb+wireless+repeater