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I have done that :-) The postman didn't bring the saw-filters today :-( /Niels, oz9ny

good idea! Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand Piton - J68HZ

Looks very good. Why not add the pe4302 attenuator chip? Can be found on ebay for less than 1$/pcs -- HBTE Files section: /g/HBTE/files Erik, PD0EK

I am working on a shield for an Arduino Due. Hopefully I can mill and test the first version of the shield today. /Niels, oz9ny

Should be able to put it all down on a single pc board, including sockets for Si4432 modules and a processor. As per the end of post 595. I'll probably build something manhatten style once my modules

Erik is still doing great engineering and education on this project.. THANK YOU AGAIN ERIK! I have been slowly receiving parts for mine. Has anyone else been thinking about how to construct theirs? I

This is done with "decimation" every 4 time reduction in samples/second give 10dB more dynamic range. So even though the ADC is 10MSamples/Second the data is decimated to a lower amount of

Interesting.? And even educational. Thanks. A few likely stupid questions. Just to let you know I'm paying attention: If the RSP1 has a 10 bit ADC, how can it have more than a 6dB * 10 = 60dB dynamic

Any oscillator will not only output one frequency but will show small variations around the chosen frequency. This is called close in phase noise. To understand the limitations of the tinySA I wanted

Nice comparison.? It would be interesting to see these tests done with an RSP1A since the RSP1 is out of production (1st generation product).? There were quite a few hardware changes and

The 2GH SA I build uses the cheap AD88307/AD603 combination for up to 120dB range at 10.7MHz and a bandwidth of 300kHz It proves to be difficult to build a RF/IF chain without AGC and a bandwidth of

There are parts for Wideband RF detection too. Ill search a couple manufacturers for parts and find something that has a good dynamic range that is also cheap. There should be some good recent

Don't have much experience with Virtualbox, installed it a few times on some client windows boxes. Most of my servers have at least a few KVM VMs running, newer had any major issues.

Hi, After I posted my last it occurred to me that it is in the kernel and when I looked in the right place it is listed there:) I will give it a try and see if it works any better than VirtualBox.

KVM is in the kernel, you just have to install the frontend tools and libraries from the repositories. Package install of virt-manager will usually trigger the rest of the dependencies.

Dr Schmidt, Exactly how would you implement this external A/D? First you'll need a device that detects the RF and creates a signal for your A/D to look at. Can you suggest an RF detector that can do

If you want to go beyond the SI4432 why not?build something like this: I found there is a huge difference between a concept and something that actually works. Making something work is a tremendous

Hi, You made me look. Maybe not all. I have a lightweight Linux distribution on my computer and KVM is not present. I do see some KVM pieces listed on the repositories. I am getting satisfaction with

There is no need for Virtualbox under Linux, KVM is already bundled with all major distributions. Remapping of virtual ports is a one click operation.

Fact of the matter is, implementing an external A/D with more resolution is pretty easy too if needed… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Sent: Monday,