#576
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[quote=folharin;135031]Attachment 16731
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#577
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#578
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Zahori Brother
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very nice,but i see 3 pcb ad 3 batteries... |
#579
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#580
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Zahori Brother
i supose this are rechargable batteries...
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#581
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Zahori Brother
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i think we dont need the big coil. do your tests without the big coil. regards |
#582
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I use 18 volts to the main pcb and 9-volt beeps generator , vu led.large coil is connected to gnd
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#583
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Zahori Brother
yes,but you must disconnect the gnd big coil and i think makes device more sensitive.
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#584
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As you said, seem there are VLF or MW transmitter in your area. Are you know on what frequency broadcasting?? Best regards. |
#585
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Well,with Zahori sometimes i listen the radio,i will try to know what is the frequency in transmiter.
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#586
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Do you hear music from the station you find on your Zahori? Best wishes, J_P |
#587
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in some places it catch music or voices,yes,radio.
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#588
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"Radio Renascença's (Rádio Sim) most powerful mediumwave transmitter is situated near Muge at 39.119939N 8.711472W, which works on 594 kHz with a power of 100 kW (although currently using 60 to 80 kW). It uses as antenna a 259 meters tall guyed mast radiator, which is the tallest structure of Portugal."
It can be received by simple diode detector.
__________________
Global capital is ruining your life? You have right to self-defence! |
#589
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Have you tried?
Hello Esteban
I'm just wondering and it may be a bit off topic for this thread, but most of your pistol detectors are using LASERS in the IR spectrum. Which is good for gold as it reflects IR very well. I guess your doing this because of ease of sourcing components. But have you ever tried any other frequncies for the Tx. I only ask because where i live the paging system frequency is close to Infrared but unlike Inrared frequencies which bounce of the ground surface, the paging system frequencies are known to penetrate hills. The only problem i can see would be making instead of a IR LASER to change the frequency and make a MASER. What's your thoughts? regards DeDEVIL |
#590
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first of all Esteban is not here to answer, it's some time that he do not post here... then what's that exchange you made ??? IR and microwaves are not same thing... then , how to say that... I think either ways don't work
__________________
"Kill for gain or shoot to maim... But we dont need a reason " someone said... |
#591
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Oh! Not another GURU?
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MAX THE GURU? HERE JUST FOR YOU LIKE IN CHILDS LITTLE SCHOOL EVEN IN BIG WORDS SO YOU CAN READ FROM BACK OF CLASSROOM IR AND microwaves ARE THE SAME THING THEY ARE BOTH ELECTROMAGENTIC WAVES JUST DIFFERNT FREQUENCIES F=1/t IR laser is called a laser because it stands for LIGHT AMPLIFICATION THROUGHT STIMULATED EMIOSSION RADIATION a MASER IS MICROWAVE AMPLIFICATION THROUGH STIMULATED EMISSION RADIATION try looking up on wikipedia lasers, masers and electromagnetic spectrum. goto www.wikipedia......... and dont send you make yourself stupid and everyone is actually laughing at YOU! Dedevil |
#592
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LASER stands for Light Amplification by Stimulated Emission of Radiation, as anyone who has studied physics should know. And MASER stands for Microwave Amplification by Stimulated Emission of Radiation. Notice how I have the ability to put more than two words together that actually make sense, and do not veer off into complete gibberish. Your reliance on wikipedia is appalling. |
#593
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Whether BY or THROUGH depends WHO you studied electronics under. Some teachers are BY and prefer there students to be BY whereas some teachers are THROUGH and prefer that thier students to be THROUGH. The test is; put them all in a round room and tell them to **** in the corner. The students who PASS go THROUGH and the rest just become BI STANDERS. So i prefer Amplification THROUGH stimulated Emission. Regards Dedevil |
#594
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#595
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microwaves and IR are NOT the same thing and you stated that : different frequency then make a maser for what ? are you planning to make a radar ? don't you know that microwaves have the tendency to bounce over solid obstacles (like soil...) ? what you wanna measure , you GURU, the height of soil ? you're a non-sense science fiction character and a clown... but I will not put any images to mantain an hi forum decorum
__________________
"Kill for gain or shoot to maim... But we dont need a reason " someone said... |
#596
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Dedevil |
#597
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yo funny idiot are so proud of what ? of wasting your time posting BS here ? c'mon and do it if you've guts and radar with maser in your hand, prove me and us we are the *****holes and you are the guru... till that you'll remain a clown! regards Max
__________________
"Kill for gain or shoot to maim... But we dont need a reason " someone said... |
#598
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This thread was started by Estaban in 2005. I wondered if there are any new updates on field tests with the Zahori unit, as it’s been a long time and new improvements have probably been made. I would like to build one and would be grateful for a point in the right direction on the latest circuit and antenna design, “also a parts list” Any help from you guys that have made one would be great. This would be a good beginner’s project for me over the winter months. Thanks |
#599
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Micro Zahori
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Try this simple circuit as your first LRL. Note : box for circuit and antenna miust be made of wood,or it will not work,if metal or plastic. Make one antenna identical to the Mini Zahori,i mean with silver SAMPLE inside. Use one speaker(or headphones) instead of buzzer. |
#600
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