When logbook wrote, I will have about 8 Ohms - that will be much to much. 0,1...0,3 Ohms would be the maximum.
Thank you very much for your answers!!! It was my first time in this forum and I hope that I can help other people as good you did.
Roman
Yes I would use the schottky diode reverse like a varicap.
The smallest mechanical trimmer is quite big (TZR1/Murata: 1,7 x 1,5 mm) and has a high ESR (about 0,5 Ohm). A small microprozessor with InCircuit programming and DA output is on board so it should be easy to change the bias.
I should...
Hello,
I want to tune a small loop antenna with a SMD schottky diode (1,4 x 0,6 mm). I can´t find any information about the ESR of schottky diodes at 433 Mhz.
0,01Ohm? 1 Ohm? 10 Ohm?
Has anybody a idea about the ESR of small schottky diodes?
Roman
Can anybody help me?
I found a mathematical method to inrease the range of radio tracking transmitters. I achieved about 50 miles with a 14 mm loop Antenna and a PLL - IC. Now I want to make some of those transmitters and sell them.
The problem is - I have very less experience in RF!!!
I...
