Ferrite antenna: Is the signal pulled in like a magnet?

[taxma1981]

and one example with not ferrite antenna,box 1 with gold and silver,box 2 with paper

[taxma1981]

i use gold gun with fm transmitter and receiver

[Mike(Mont)]

I guess it depends on the receiver, but that's just a guess why it works better. At least it appears so with my test targets. I know you won't be happy with this answer, but...That's my story and I'm sticking to it.

[WM6]

No doubt, receiver is important, but don't forget: antenna is always part of receiver.

[taxma1981]

The antenna make the diference

[WM6]

Exactly, but it not easy task to make HiQ antenna.

[Mike(Mont)]

yeah, the loop antenna is more powerful than the ferrite antenna. The gain on the receiver has to be lowered. It requires a few minutes between practice rounds otherwise it will detect where the target was on the last round. The ferrite rod usually does not pick up the residual nearly so much if at all. At least that is with a half ounce of silver.

[taxma1981]

I have this antenna and it is better from ferrite antenna

[abdou2014]

HELLO. GOOD WORK . PLEASE DIAMETER OF WIRE AND NUMBER OF TOUR. I WANT TRY IT

[Mike(Mont)]

Originally Posted by taxma1981

I have this antenna and it is better from ferrite antenna

Yes, I like the idea...I will build one.

[taxma1981]

The coils haven 10 cm diameter,

Wire 0.2 mm

9-10 mh

[Mike(Mont)]

Is that for transmit?

[taxma1981]

This is the coil from receiver

[abdou2014]

10 Mh is too much . what is the value of parallel capacitor

[taxma1981]

Originally Posted by abdou2014

10 Mh is too much . what is the value of parallel capacitor

820pf


mh not Mh

[abdou2014]

10 millihenry is too much . what is your reception range .

[taxma1981]

theoretically 58-60 khz :χαχαχα:

One example
https://youtu.be/SXeBqkunHbk

[abdou2014]

you must calibre it with transmitter . my GG918 work between 35-80 Khz.

http://www.longrangelocators.com/for...t=15058&page=6

58-60 Khz it's not enough .

[taxma1981]

58-60 khz with this antenna and 10-24 with second antenna

[taxma1981]

Originally Posted by abdou2014

you must calibre it with transmitter . my GG918 work between 35-80 Khz.

http://www.longrangelocators.com/for...t=15058&page=6

58-60 Khz it's not enough .

do you have video??

[abdou2014]

i did not now. but i'll do one next time .did you find anything with it

[taxma1981]

i dont test it

[abdou2014]

you must test it and find gold with it . That's the real success !!!

[Mike(Mont)]

Found out today the threshold was set too tight. By giving a little more room before it goes off, there are less weak, broken signals, gets rid of the scattered garbage. Easier and more accurate to pinpoint this way. Less false alarms. I always thought the threshold had to be so close, so tight like with a metal detector, but not the case. Sort of like the squelch on a CB radio if it sounds off too easily you just get a lot of static. Works much better now.

[Mike(Mont)]

Been working indoors today due to cold weather. The loop antenna is just not as accurate indoors. Need to redesign it, I guess. I have found that the wire position is critical. Just a few wraps out of place (off center) and there is a very noticeable effect--it does not aim correctly.

user.netonecom.net/~swordman/Radio/re-loop-article.htm

You see why i hate posting links. That's the right address, you'll just have to copy it yourself or search "Doug's loop antenna article"