HAM RADIO MIXER FREE
Joining my group is free just click on the button below. Home Home & Garden Consumer Electronics Radio Communication Electronics Ham &. Project files will be made available via the Groups.io platform by joining my G6LBQ community group where you can discuss my projects, ask questions and help others. MAX2671 400MHz to 2.5GHz Upconverter Low Noise Mixer Frequency Converter. The process of RF or non-linear mixing or. Here signals are multiplied together and signals an new frequencies are generated. Unlike an audio mixer where signals are simply added together, when a radio or RF engineer talks about mixing, he means a whole different process. Strong steel case reliable protection against external noises. Slanted front panel for more comfortable operation with it. Once I complete the Irwell transceiver build I will carry out tests to determine the actual end projects performance, this will involve building some additional test equipment and I will document this along with the performance results on the blog at a later date. One of the most useful RF or radio frequency processes is that of mixing. Technical data: Microphone low noise amplifier with input and output level pots. I did carry out a comparative check on the output of my H-Mode mixer against that of a diode ring mixer and on my spectrum analyzer the output from the H-Mode was much cleaner displaying far less spurs than the diode mixer. The following image shows a completed module.įor now I have not made any meaningful tests to quantify the performance of my H-Mode mixers but in use the performance is noticeably better than that of a diode ring mixer. The manufactures data quotes an IP3 of +33dBM at 200MHz so my choice of part is questionable but as I have a quantity in my parts stock I decided to make use anyway.įor this version of the mixer I decided to get a batch of PCB's professionally manufactured. I used an SA630D chip for the signal switching, this device is rated to operate from DC to 1GHz with an input output impedance of 50 ohms and an insertion loss of 1dB. Here is the schematic diagram for my H-Mode mixer with RF/IF switching. Note that the RF & IF ports are actually symmetrical so they can be used either way round, this basically means that the switching can be allocated to either the RF or IF as needed. I have also produced a version of my H-Mode mixer with a solid state RF switching device in the RF port which can be used for TX & RX signal control.