---====FERRUM ====---
Today I will delight you, readers of ZX City, with a VHF-FM radio circuit
stations. Yes, iron has not been in our newspaper for a long time. Nothing
Let's catch up!!
A simple VHF-FM radio with a range of 500 m.
┌──────────────────── ─────────────────────┐
│Functional diagram of the radio station │
│ │
│ v ant │
│ ╔══════════╗ │ ╔════════╗ │
│ ║ ╟─────── ──────╢ ║ │
│ ║transmitter║transmission receive║receiver║ │
│ ║ ╟─────── /──────╢ ║ │
│ ╚══════════╝ │ ╚════════╝ │
│ │ │
│ +Unut │
│ │
└──────────────────── ─────────────────────┘
┌──────────────────── ─────────────────────┐
│Schematic diagram of the transmitter │
│ │
│ ┌───────────┬────────o───> +9B │
│ │ ) ┴ │
│ R1* ▒ L1) ┬ 10H │
│ 15k ▒ ) v ─┴─ │
│ │ VT1 o │ ant │
│ │ KTЗ15│/─┴─o──┘ │
│┌─┤├──o────o───┤ ┴ C4 │
│ │ C1 │ │ │>┐ ┬ 15 │
│ │0.1mk│ │ o─o │
│ │ │ │ │ │ │
│ │/┴ │ │ │ │ │
│ │ │ ▒ C2 ┴ R3 ▒ ┴ C3 │
│ │┬/ R2 ▒ 1H ┬ 100 ▒ ┬ 68 │
│ │ 6.8k│ │ │ │ │
│ │ │ │ │ │ │
│ └─────o────o──────o─o──────────> -9B │
│ │
└─────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────┐
│Принципиальная схема приемника ┼ - нет пересеч. !!! │
│ │
│ ┌──────────o─────────────────o─────────────o──> +9B │
│ │ ) │ │ │
│ R1*▒ L1) v R5 ▒ ▓┤ │
│ 15k▒ ) │ant 6.8k▒ ▓┤ тел. │
│ │ o──o─┘ │ │/─────┘ │
│ │ │/─┘ ┴ C3 o──────┤ │
│ ┌─────o──o────┤ ┬ 15 │ │> │
│ +│ │ │ │>─o─┘ │/─┘ │ │
│ C1┴ R2 ▒ ┴ C2 ( C4┌──o─┤ │ │
│ 10┬ 6.8k▒ ┬ 1H др1( 33H┴ ││>┐ R6 │ │
│ mk│ │ │ ( ┬ │ │ 2.7k │ │
│ │ │ └────────o─▒▒▒────o └────┼─▒▒▒─o──o │
│ │ │ │ R4 │ │ │+ │ │
│ │ │ R3 ▒ 2.7k ┴ │ C6┴ ▒ R7 │
│ │ │ 6.8k▒ ┬ C5 │ 1Omk┬ ▒ 2.7k │
│ │ │ │ │ 10H │ │ │ │
│ └─────o───────────o─────── ─o───────o─────o──o───────> -9B│
│ VT1-VTЗ KTЗ15 │
└────────────────────────────── ───────────────────────────────┘
Read more: How to use it?
ДП-0.1, синдуктивностью 40-120 мкГн. Read more
на резисторе МЛТ-0.5 сопротивлением не 100 кОм, 200 витков
провода 0,1. Катушки L1 button, содержат
12 Add to cart 0.8 minutes. Get more information. С целью
Read more about 15 days in advance More
Click on the number 8, number 55. And then there is a lot of money in it -
редатчике применен капсуль ДЭМШ-1А. More information about
The price is 1000 pounds. Read more about this topic
-
ностью, адля приемника телефон "ТОН-2".
Read more: Read morecomplexity.
Receiver. Resistor R1 of the receiver achieves stable super-
heterodyne noise. For final setup, both radios
placed at a distance of 5-10 meters from each other. They should
have antennas with which they will be used in the future.
By spreading the turns of the transmitter coil of one radio station and
turns of the receiver coil of another radio station to achieve a noticeable
noise suppression in receiver phones. In this case they will
tuned to the same frequency. It can be used as an antenna
any metal rod 50-100 cm long. Performance
radio stations are maintained when the supply voltage changes from
4.5 to 12 volts.
Collect, set up, communicate!!!
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