Andy Flind MFD.

[skyeffect]

For what exact reason is the two-stage amplification needed before the LM358?

[Zicos]

Ziko with tx and Rx ??

RX only

[skyeffect]

Zico, have you tried any other tests with a different antenna? Honestly, have you dug in the mountain? … Regarding the receiver, is there any improvement in the circuit?

[Zicos]

Zico, have you tried any other tests with a different antenna? Honestly, have you dug in the mountain? … Regarding the receiver, is there any improvement in the circuit?

hello friend and everyone...(1)...I have a test and I have made the same circuit with a different antenna I have two simple coils one 7 cm and one 6 cm and a spiral 7 cm all connected together in series. A piece of advice for everyone is that when connecting the coils in series, change the ends of the coils and test the range with the watch to find the best connection..(2)..With L.R.L. I have not gotten anything out of the ground ..(3).. I do not have the time needed to make a conversion to the receiver, nor any testing.

[abdou2014]

HI TO ALL AND HOPE SUCCESS TO MEMBERS, I HAVE VERY GOOD RESULTS ON TEST FIELD WITH MY MAGNETIC RECEIVER, AND IF YOU NEED TO KNOW IT'S SENSITIVITY FROM 1.5V WATCH 50CM AND 1.5V SPARK 3 METERS. IT'S VERY STABLE DEVICE . GOOD LUCK TO ALL.

[HaFar2010]

HI TO ALL AND HOPE SUCCESS TO MEMBERS, I HAVE VERY GOOD RESULTS ON TEST FIELD WITH MY MAGNETIC RECEIVER, AND IF YOU NEED TO KNOW IT'S SENSITIVITY FROM 1.5V WATCH 50CM AND 1.5V SPARK 3 METERS. IT'S VERY STABLE DEVICE . GOOD LUCK TO ALL.

Dear abdou2014, can you tell us that where you played for reaching high sensitivity ? its preamp or other?

[abdou2014]

I DON'T USE PREAMP

[HaFar2010]

I DON'T USE PREAMP

I think you are using high inductance, example several Henry.
I this case, you can detect even Iron or any magnetic material.

[skyeffect]

Help to build pls with this sensitive.. my device not good in sensitive .. what coil do you have ??

[Zicos]

Help to build pls with this sensitive.. my device not good in sensitive .. what coil do you have ??

How far away do you catch the watch?

[HaFar2010]

https://www.youtube.com/watch?v=NiGuoENQNVg&app=desktop

TV detection over 10 meters

Hello dear rxlock2
Thanks for your nice videos.
I see your clock test with Andy.
Is it possible to tell me how you could increase the detection?
If you would help me, i can send you my email address.
Thank you.

[Geo]

Hello Hassan. There is n't something magic at clock or battery tests. A different frequency may increase the clock distance but the sensitivity of your device remains the same.
A good low noise preamplifier is the basic.

[HaFar2010]

Hello Hassan. There is n't something magic at clock or battery tests. A different frequency may increase the clock distance but the sensitivity of your device remains the same.
A good low noise preamplifier is the basic.

Hello dear Geo
I am realy happy that see your post.
Thanks
My andy detects clock from 12cm without any noise or any 50hz electric noise

[Geo]

Hello Hassan. 12cm is very good distance. If u tune your Andy at an harmonic of your watch then u will catch it at more distance but..... only the watch, not the gold.

[HaFar2010]

Hello Hassan. 12cm is very good distance. If u tune your Andy at an harmonic of your watch then u will catch it at more distance but..... only the watch, not the gold.

Thank you dear Geo
I am research on your friend's lrl method.
Is it possible to check your email box?
thank you.