Marcus, Something is wrong around the ERA-3, its gain should be 23 dB and you are getting 13 dB; 10 dB loss is quite large. Do you have a spare ERA-3 to exchange? Is your MMIC coming from a reputable

Hi Marcus, It seems to that that you nailed it. Congratulations. Since I already have a PHSNA I plan to use one "Experimental board" for making a HF signal generator. (I have several but making this o

Marcus, Your double peaked plot reminds me of one that I did with my PHSNA, which shows a deep dip around 30 MHz. The reason was a cable that connected it to a high impedance RF voltmeter and was in p

Hi André, I was curious about you was trying to do, now I understand it. If you have coding abilities it is quite easy, you need to modify two things: - The Arduino program, to add the second ADC read

Hi, It would be possible but you would need to modify both the Arduino code and the PC program. What is your goal with this dual detector arrangement? 73 de Ignacio EB4APL

I had downloaded from the files section the Type I DDS schematic which unfortunately is in Chinese. I have studied it with the help of the AD9851 datasheet and labeled the jumpers/connectors in Englis

I agree 100%, I was referring to Arduino compatibles not to fake copies. They can not (legally) copy the logos and other printed marks trying to cheat the customer making him to think that it is a gen

Hi Rob I basically agree with you but just for one detail: Arduinos are an open source project and it is OK (and legal) to copy them, either for personal or profit use. Regards, Ignacio EB4APL

Hi, I have seen this very cheap AD8307AR on ebay, the item number is 201415004624. The same seller has also these by the unit at a mere $0.99 each. These are not fakes and probably comes from excess i

Ed, The text editor that you are using is inserting extra characters.� Probably you don't know yet but the PHSNA program has an editor just for showing/editing the configuration file.� Go to Setup

Hi, As far as I know the Arduino reset by itself doesn't program any frequency into the DSS chip so it doesn't produce any output. The PHSNA Windows program "Reset Arduino" function does it by sending

Hello, I was puzzled the first time that I measured my antenna with the Return Loss Bridge, the figures were nonsense. Then I remembered that other guys using antenna analyzers sometimes had the same

Thank you for the responses. Then I will adjust it for +10 dBm after checking the waveform purity and I'll increase my Crystal Fixture input attenuator to 20 dB and also I'll touch up the Measurement

Hi, I want to know the right output level to the outside world. I've read -10 dBm and also 0 dBm but the units built with the DDS-60 kit can output up to + 10 dBm. Is there any reason for keeping the

Hi, I think that I found the reason for these AD8307 being so cheap: The ones that I received from 2 vendors are not RoHS compliant, at least according to the markings. The Analog Devices datasheet li

I just received a new batch of AD8307 from the Chinese ebay vendor "survy2014", the price was $2.99 for 5 pieces. I didn't tested them yet but they appears to be totally genuine AD parts, the markings