I have just build and tested my first Coax Cavity filter. Used the nearest (Australian) metric copper pipes 25mm OD ~1.0" and 6mm OD ~ 0.24". I used copper...
Hey Len, What a brilliant method that is. I use my gas range to solder and desolder large items all the time, but I didn't think of using solder paste. Only...
Hi team, I have been following this team progress for some time. Great work team!!! The MSA seems ready for prime time. I was wondering what type enclosures...
I will take a shot at responding to your question as to the IF boards. The proper detection scheme is still up in the air, and depends on how complex you want...
Sam, thank you for information. My Needs for SA dont include a VNA . I really need the SA for general purpose work. My hobby is working on software defined...
Hi Mike, Didn't mean to scare you off. If you don't need the VNA function and just want a straightforward detector, the necessary design is well established,...
Just how do you control the MSA when your new PC or notebook has no LPT port (and most new ones don't)? The choices that are then left is the PC serial comms...
EUROPEAN AMPLITUDE MODULATION AMATEUR RADIO GROUP NEW YAHOO GROUP: http://groups.yahoo.com/group/eamarg/ This is a group for licenced amateur radio operators...
Why not just build an Ethernet based interface? Should be relatively straightforward... (of course... now that I've opened my big mouth... :-S) Best! -jw...
JW, That's in the works. Do you have any expertise to lend to the effort. I would envision the device to have a browser interface and the SSA would serve up a...
Hi JW and group, - In spectrumanalyzer@yahoogroups.com, "JW" <aiki10@...> wrote: Why not just build an Ethernet based interface? Should be relatively ...
Actually, I think it'd be better to just incorporate a simple interface that in the end is focused on spewing samples to the host machine (not unlike the...
Doing USB is not hard, but forget trying to use an LPT to USB converter - it will be really slow, If you look at the N2PK VNA group you will find details on...
Dave, I think your reference to moving the bit twiddling to a local processor is the key, whether you're looking for RS232, USB or Ethernet. While USB and...
Eugene, I'm not very familiar with XML but I appreciate what your point is. I think that it might be even easier than my suggestion, because the basic scope...
Yep... That's where I was going (although I might even go with something simpler than XML)... -jw ... I think that it might be even easier than my suggestion,...
This message is about MSA remote control + remote display, not about the MSA crunchy RF bits. They will evolve in Tandem. There have been a number of good and...
After telling the group about the tests with pop riveting the 2.72" inner posts in place, I tried to make up a real filter, my second. The copper pipe...
Just a thought If it takes 30 - 100 hours to do a serial interface, why not simply skip that? You can have USB 2 much much faster and it will always outperform...
My approach was to solder the outer pipes in place first and then use a wooden dowel with nail in the end to locate the center of each pipe, and then drill...
By golly man, I think you've got it. Len, Those filters are looking really good and the idea of using solder paste, albeit not the same paste as you would use...
Hi Dave. I might take you up on your kind USB 2.0 offer after we get the other learning to walk steps (serial and USB 1.0) out of the way. Anyway, the MSA...
Hi Len / all OK - I'll have a look at the way the MSA software works at the moment and see what I can come up with. Regards Dave ... done ... always ... one...
Dave and Group A tip I found on one of the Yahoo lists lead me to Dontronics and I found a couple of ideal products to ease the USB to Serial interface issue....
Hi Now I'm confused. Why bother with serial? I was going to implement a direct USB -> parallel interface that directly drove the parallel interface the...
Hello Group, there is a nice usb board from atmel called AT90USBKEY. It is cheap (Digi Key 30$) to promote the new AVR with USB. It comes with well documented...
Peter, This is the precise point where I need some guidance. Which driver class to use and you know that there is one for test and instrumention, which seems ...
I'm going to rephrase a previous communication. There are many ways for the computer and microcontroller to communicate. The computer sends commands; the...
... I think Sam is on the right track here. With a modular device such as the MSA, if you build functionaly into a controller, (as opposed to a primitive...
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