I’m the proud owner of a brand-new-just-arrived LimeSDR device and i’m now trying to choose the antennas and i’m still wondering about the use of a log perodic pcb antenna (850 - 6500 MHz) ?
Do you think that it is a relevant choice ?
Which socket should I choose on the Limesdr for connecting such an antenna please ?
I can not comment regarding antenna itself, but do not understand why you want 6.5GHz.
In terms of connector you need U.FL female one on antenna cable, check this thread:
I do not want 6.5 Ghz but I’m looking for a large spectra antenna and the ones that can be found generally goes up to 6500 mhz…
I plan to put the LimeSDR in an aluminum case with U.FL to external SMA connector , and then connect the external sma connector to the aluminium case sma connector.
Is there some LimeSDR users who have experiment with a log periodic pcb antenna please ?
I use 2 of these antenna’s to experiment between 2 hackrf’s.
I use a piece of semi-rigid cable with on one side a female SMA connector and the other side (smallest part from the antenna) the cable directly on the PCB .
Then i soldered the outer conductor from the semi-rigid cable on the middle lane on 3 places to secure the cable there (no bad influence to the antenna performance).
The semi-rigid cable is a inch longer than the antenna. That part i make stiff with some solder.
You can also solder a PCB SMA male or female connector in the prepared holes and connect there you coax cable.
But take care that this cable not influence the performance from that antenna.
I have to find a definitive solution for a non conductive stand for these antenna’s.
But for now i use some hard foam where i push the antenna in
It works for me very well for indoor experiments.
But remind that a logper antenne is not selective. So you have to filter it by yourself.
Dear Kc7noa and pe2ben,
Thank you very much for your help and information…
I’m a kind of newbie in the SDR field and I would like to find a universal antenna which allow me to explore from about 400 mhz up to 2.4 Ghz … I have no particular frequency in minds but GSM, wireless communication and other usual communication devices attract me a lot …
May I ask you , according to you, what would be the more relevant antenna’s choice please ?
I’m a bit lost :-/
Thank you once again for the help !
Skappy