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Title: Singer / Panoramic SPA-100 / RX-100 spectrum analyzer Post by: Opcom on July 24, 2009, 10:30:45 PM check this out..
I am trading for this good working Singer / Panoramic SPA-100 / RX-100 spectrum analyzer. It covers 10Mc to 40 Gc. Anyone used one of these before? I'm looking for the manuals on it. Probably avail online for a small fee. If anyone has one available for cheap/free of course.. hehe I am trading some H/P logic analyzers. He may be getting the better deal, but what's a trade between friends? This should help me see unwanted harmonics so I can make sure my TX are clean. I already have an analyzer to cover 50Kc to 27.5Mc so I should be good to go. Title: Re: Singer / Panoramic SPA-100 / RX-100 spectrum analyzer Post by: w3jn on July 25, 2009, 08:21:47 AM Those early spec ans have pretty bad front ends. Not sure about that one, but some (like the Tek 491) have shitloads of birdies and it's almost impossible to determine what's real and what's not.
Prolly a good trade vs logic analyzers, though ;D Title: Re: Singer / Panoramic SPA-100 / RX-100 spectrum analyzer Post by: WQ9E on July 25, 2009, 09:18:58 AM Those early spec ans have pretty bad front ends. Not sure about that one, but some (like the Tek 491) have shitloads of birdies and it's almost impossible to determine what's real and what's not. It just requires a little more "user input" to separate the real signals from the spurs :) I used an old pair of Tek "1 Series" plug-ins for several years (1L10 and 1L20) and you differentiated the actual signals versus spurs by the direction and rate at which they moved across the screen when the center frequency was changed. I picked up a Tek 7L13 a few years ago which is much easier to use. The analyzers sure make it easy to align the old phasing rigs. Pretty much any spectrum analyzer is better than no analyzer; modern analyzers definitely are easier and don't require as much skill to use (a slightly trained monkey will suffice for the current offerings). Enjoy your new trade. Rodger Title: Re: Singer / Panoramic SPA-100 / RX-100 spectrum analyzer Post by: K1ZJH on July 25, 2009, 08:54:27 PM Those early spec ans have pretty bad front ends. Not sure about that one, but some (like the Tek 491) have shitloads of birdies and it's almost impossible to determine what's real and what's not. Prolly a good trade vs logic analyzers, though ;D 491 was great on two meters!! Tuneable IF was tuning in the opposite direction of the frontend IIRC. Really neat trying to separate the fly poop from the pepper. ;D ;D Title: Re: Singer / Panoramic SPA-100 / RX-100 spectrum analyzer Post by: Opcom on July 27, 2009, 11:58:07 PM I tried it. it's easy to use. I don't mind the birdies, I am used to knowing what I am looking at in the aviary. I was aboe to tune it to see the sidebands on a 20MHz carrier and also up at 500Mhz, the limit of my 'good' signal generator. not bad for something that covers 10m to 40G. This in combination wih the MF-5+Vr-4b combo covering 50Kc to 27.5Mc should do for checking my outpoot harminicas. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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