hello to all of you .I noticed that this branch of the forum i mean long range locator is no longer active and most of the articles are somewhat old so they cannot give us good picture of the reality of today's devices despite trying to analyse them previously therefore we must join hands to inject a new spirit in this forum due to it's importance in educating people and providing them great services and i am one of the beneficiaries of it because following it for years on an almost daily basis therefore i sincerly thank everyone who contributed to it . today i start with next topic : I didn't find many informations about the device spectra so is there anyone who can give us pros and cons of it and it's iffectiveness , the depth , the distance and is it possible to use the elliminator-e 120 with it especially Geo said that he doesn't suggest it . thank you previously.