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Gary, I assume that you do not yet have a hardware configuration for which Erik's code works. My code is still bit-banging the SPI port just like Erik's, but it is using pins that could use the Nano's

Jerry, No, if it doesn't communicate in Serial Monitor, it won't work with tinySA.exe, unless I am mistaken. Yes, I believe it should be "Init"? coming out.? Locking up after 2 chars is the

Interesting service. I'll have to keep it in mind. I guess, since you've made the request, you already have the data sheet with package profile but just in case its available here:

Just made the request for the part and it was accepted. It takes about 24 hours to get it done. Ion VA3NOI

I assume you are not yet using tinySA.exe, just using the Arduino IDE Serial monitor to feed it commands by hand. Have you tried Erik's code, verified that it works as expected on your hardware using

Oops, I have the 6 pin footprint. You can get it built for you if you go to mouser.com. They offer this service. That is how I've got mine (the 6 pin). You have to provide them a spec sheet with the

kicad but as I said if you have it in a format compatible with any of the software available to hobbyists that would be great.I'm only intending to use this for a small board (i.e. just the BP filter

Hi Dave. I can send you the footprint. What EDA software are you using? 73, Ion VA3NOI

The last bits arrived last week and I'm working on my initial implementation of the TinySA, building the filters "ugly" style. I'm also considering making small PCBs for the filters, both low pass and

Jerry, I like your improved code.? I am just running a Nano. It compiles fine and small but, it doesn't run for me. In the Arduino Serial Monitor it outputs "In" and then stops, doesn't respond to

Correction: Noise Figure is discussed in section 2.6, not 2.5 The book uses the symbol "F" for the "noise Factor" of an amplifier expressed as a ratio. "NF" for "Noise Figure" is used to express it in

If you use TWO of SV1AFN’s attenuators in series (31 dB per PE4306 attenuator), you get 62dB total. You don’t need to buy his controller… you can control it via the Arduino SPI interface.

If you have the space and the money, yes In practice I have not found much use for 60dB as for high power input signals you should want a high power attenuator and the PE4302 is not capable to do this

Disregard the crud in that previous post after my signature. Jerry

Erik's post on noise figure is worth figuring out, but it would be tough to fully understand it without any background. Section 2.5 of EMRFD gives the necessary background. Assuming that background,

Regarding register 0x6D, page 51 of AN440 says that bits D7,D6,D5,D4 are "reserved", and power up to a state of 0011. Probably best to always write to the register with? 0011 in those bits. D3 is the

It might be useful on occasion, but I don't think it's worth doing. In those cases where I want 60dB of attenuation, the front end would probably be seeing Watts of power. Enough to burn out a PE4302,

Here's a grep for register 0x6D in the Jan 17 tinySA.ino Arduino code: tinySA$ grep -i 0x6d tinySA0.ino SI4432_Write_Byte(0x6D, 0x1F);//Set full power SI4432_Write_Byte(0x6D, 0x1C + (drive - 2

While you smart guys are thinking along these lines... Would it be more useful to build in two attenuators in the front end (60db)? 73, Gary WB6OGD

Absolute maximum power spec into a SAW filter is typically 5dBm. We definitely don't want the RX Si4432 to drive it with 20dBm when operating in the "P6 3" signal generator mode. So Jan 17 tinySA.ino