Hi all, It seems this group is a bit quiet these days but would appreciate any advice. I'm a uni student looking to build a SNA optimised for audio frequencies (20Hz - 20kHz). It will be used to test

Hi, I am looking to build an Arduino-style SNA to test some bandpass and low pass filters I am building for a project. I seem to understand that they all lie around the ad8307, or op-amp detector toge

Hello everyone. It seems this forum has been around for quite some time. I am a newcomer that wants to build his own VNA and been looking for information. Unfortunately, all the info seems to be "top

Welcome to the new moderators! I've been measuring a lot of crystals the past week, about a hundred in all. About 50 in 8.192 HC49/U from a batch of 100 of which I had measured previously, and about 5

Dear PHSNA testing community; I am finally building the Measurement Receiver. I wanted to ask advice on how to test/tune it as I build it in sections? Here are my thoughts: 1) using the PHSNA, sweep t

I've been working on an SSB exciter using my Si5351a programmed as an I/Q VFO and some circuits from EMRFD. I finally got my two boards all wired up. Hooked up an audio generator and my Si5351a I/Q VF

I think I've fixed the issue with Rev 1.42 not producing results in crystal measurement mode. I produced a new set of coefficients for the crystal measurement sweep. I believe the addition of the coef

Hello Nick. I will see if I can get some activity started then. I see a lot of projects that use the AD9850 and AD9851 but they all seem to use the module that was so cheap from China 6 years ago but

We received this message under the "New Members" topic: " The various versions of the software and hardware files are not always clearly identified. It would be helpful if someone who knows the projec

I posted earlier about finding the software & Arduino source code. As to the hardware - there's a lot of hardware info in the Files sections. People posted photos and info on their builds of PHSNA and

Hello PHSNA- I've recently become one of the moderators for the group. I note that we've had 18 new members sign on in this month. You should now have access to the messages and files in this group. I

all groups member I report this interesting experience of DL6GL ad8307 comparison translated from German to English https://translate.google.it/translate?hl=&sl=de&tl=en&u=https%3A%2F%2Fdl6gl.de%2Fad8

A little while ago Dan, AI2M, joined this group as its 1000th member. Would have been hard to fathom that back on 10 Sept 2013 when Jerry, W5JH (SK) and I started this little project. It's been great

With Yahoo Groups shutting down, and not all of those I subscribe to moving over to groups .io. I wanted to grab a copy of the existing Yahoo Group data. I found directions on how to grab a download o

Yahoo Groups is going away. If you need any files, photo's or other data from any group you are member of, get it now, by the end of December it will all be gone. Terry VK5TM

Hello, I would like to buy a power meter to calibrate my AD8307 Is there a power meter that doens't require anual Calibration. I line in Peru and it is expensive to send the power meter to US just for

hi wich win software i use for your code for si5351? if you made a software pls up load. thanks

Hello, If I use a TCXO oscillator with a frequency accuracy of 1ppm with an AD9851 which have activated the 6x Multiplier, will the multiplied frequency have the same accuracy of 1ppm? Example: Input:

Hello: I have found this Arduino code to set the Frequency on a si570 oscillator but it has a max frequency of 157 Mhz (#define ULIMIT 157000000UL), Is there a way to modify the source code to make it

Good Morning, I'm using this calculator (https://www.changpuak.ch/electronics/mar_era_bias.php) to get the values of the Capacitors, Resistance and Inductor for my Minicircuits MAV-11BSM amplifier. Th