Question for Bruce

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Question for Bruce

Postby Oldiron » Fri Jul 27, 2012 10:03 pm

Technical question but I don't know where else to put it.

What do you use for an adapter/input device and software for your PC spectrum analyzer? I was a radar/microwave tech in the US Air Force and various contractors for many years. We had to use big boat anchor HP Spectrum Analyzers because of calibration requirements. Using a PC for personal use would be better than an expensive 20 kilo analyzer. It would be nice to have a spec-an on the bench for aligning local oscillators, transmitters and a lot of other things but I can't bring myself to spend the sort of money they want for even a reconditioned unit for personal use. I've seen a bunch of different USB adapters on the web and in Microwave Journal but I've never had any experience with any of them so I don't know what would be worth while. I would like to be able to have enough band width to go from 500 Khz for working with old tube radios up to 3 to 5 Ghz for these RC radios and FPV transmitters.

Suggestions?
Oldiron
 
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Re: Question for Bruce

Postby FPVR4T » Sat Aug 04, 2012 2:21 pm

Hi Bruce

Could you do a review on these antennas
http://www.firstpersonview.co.uk/antenn ... 2-antennas

I've sent a email to the company to see if they would send you a pair so you can review them

Peter Wakefield
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Re: Question for Bruce

Postby sloperdude » Mon Aug 27, 2012 9:23 pm

Check the reviews on HobbyKing. Everyone likes them, but if you're planning to attach the tall one directly to your FPV glasses, expect the video to break up occasionally. I plan to mount mine on a pole. Nice set, not very expensive.

One other review I read said that on the short one that goes in the model, the extension wire wasn't stiff enough to stay straight up when the plane it was in flew fast. That could be easily fixed with a Popsicle stick or some other stiff material. No one else complained of that.
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Re: Question for Bruce

Postby pprioverde » Sat Sep 29, 2012 8:03 pm

Oldiron wrote:Technical question but I don't know where else to put it.

What do you use for an adapter/input device and software for your PC spectrum analyzer? I was a radar/microwave tech in the US Air Force and various contractors for many years. We had to use big boat anchor HP Spectrum Analyzers because of calibration requirements. Using a PC for personal use would be better than an expensive 20 kilo analyzer. It would be nice to have a spec-an on the bench for aligning local oscillators, transmitters and a lot of other things but I can't bring myself to spend the sort of money they want for even a reconditioned unit for personal use. I've seen a bunch of different USB adapters on the web and in Microwave Journal but I've never had any experience with any of them so I don't know what would be worth while. I would like to be able to have enough band width to go from 500 Khz for working with old tube radios up to 3 to 5 Ghz for these RC radios and FPV transmitters.

Suggestions?


Bruce uses this: http://www.rcmodelreviews.com/wispy24i.shtml
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