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По сравнению с предыдущей версией https://www.pcbway.com/project/shareproject/Frequency_synthesizer_NanoVFO_3_1_square_b5514a69.html существенно расширен функционал без усложнения схемы. Синтезатор ст...
Frequency synthesizer NanoVFO 3.1
1058
0
2
Maksim EW7DDR
Maksim EW7DDR
BELARUS
135
158
Arduino based frequency synthesizerПоследние изменения 06.04.2022, Версия 1.5Добавлены:режим калибровки синтезатора;второй режим работы опорного генератора, дублирующий основную частоту, без учета ПЧ;...
VFO_NANO_LCD_SI5351
2089
0
9
Maksim EW7DDR
Maksim EW7DDR
BELARUS
135
158
Переключение трансивера в режим передачи производится при включении переключателя S1 «Упр.». При этом срабатывает реле К3 в блоке УМ. Это реле в зависимости от режима работы подключает антенну либо ко...
Основная плата трансивера Аматор КФ
1611
0
5
Евгений Лисовский
Евгений Лисовский
BELARUS
15
25
Description:Problems with local QRM on HF? Often the answer is "yes". No matter if it's the elevator controller or an arcover on the high voltage line next to the garden. Most trouble comes from the l...
QRM Eliminator X-Phase (Фазовый подавитель помех)
771
0
6
Maksim EW7DDR
Maksim EW7DDR
BELARUS
135
158
uSDX is a simple and experimental (Class-E driven) SSB and CW SDR transceiver. It can be used to make QRP SSB contacts, or (in combination with a PC) used for the digital modes such as FT8, JS8, FT4. ...
USDX part 5
816
0
2
Maksim EW7DDR
Maksim EW7DDR
BELARUS
135
158
uSDX is a simple and experimental (Class-E driven) SSB and CW SDR transceiver. It can be used to make QRP SSB contacts, or (in combination with a PC) used for the digital modes such as FT8, JS8, FT4. ...
USDX part 1
1916
0
2
Maksim EW7DDR
Maksim EW7DDR
BELARUS
135
158
Самый простой частотомер построенный на микроконтроллере ATtiny2313. Он позволяет измерять частоты до 10 МГц в четырех автоматически переключаемых диапазонах. Наименьший ...
Frequency counter on ATTINY2313
1036
5
2
Maksim EW7DDR
Maksim EW7DDR
BELARUS
135
158
Simple but effective 2,4 Ghz jammer. This module can block BT and WIFI, to block spying wifi cameras or loud neighbour using bt speaker. I designed it so that the cost of making this was as low as pos...
Bluetooth and WIFI jammer
6003
4
10
Norbert Norbi
Norbert Norbi
POLAND
7
0
This project is about MC3362 and ADF4351 based modularized, 2-meter narrow band FM receiver. In this design, the receiver splits into three modules as RF preamplifier, MC3362 tuner, and ADF4351 oscill...
Narrowband FM receiver for 2-meter band
4308
1
2
Dilshan Dilshan Ranmal Jayakody
Dilshan Dilshan Ranmal Jayakody
SRI LANKA
14
0
3.22.24 Updated to Ver 1.2files with 3 mm traces and reorganized some trace routing for better heat dissipation and low noise.This is a reworking of the basic Variable Regulated Linear Supply schemati...
LM338.LinearPowerSupply
161
0
0
awynn1
awynn1
UNITED STATES OF AMERICA
0
0
ADX – Arduino Digital Transceiver V2ADX – An Arduino based HF Digital Modes TransceiverADX is an Arduino based Digital Modes Transceiver. ADX is abbreviation for Arduino Digital Xceiver...
ADX – Arduino Digital Transceiver V2 TOP PANEL
291
0
1
Maksim EW7DDR
Maksim EW7DDR
BELARUS
135
158
ADX – An Arduino based HF Digital Modes TransceiverADX is an Arduino based Digital Modes Transceiver. ADX is abbreviation for Arduino Digital Xceiver. So where does thing come from?When...
ADX – Arduino Digital Transceiver V2
421
0
2
Maksim EW7DDR
Maksim EW7DDR
BELARUS
135
158
These days I got this small radio receiver from the brand XHDATA model D-368 and I decided to look at it in a little more detail outside as well as inside and write this short review. My radio a...
XHDATA D-368 Radio short review
471
0
0
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
49
0
uSDX is a simple and experimental (Class-E driven) SSB and CW SDR transceiver. It can be used to make QRP SSB contacts, or (in combination with a PC) used for the digital modes such as FT8, JS8, FT4. ...
USDX part 3
511
0
0
Maksim EW7DDR
Maksim EW7DDR
BELARUS
135
158
USDX part 1uSDX is a simple and experimental (Class-E driven) SSB and CW SDR transceiver. It can be used to make QRP SSB contacts, or (in combination with a PC) used for the digital modes such as FT8,...
USDX part 2
665
0
0
Maksim EW7DDR
Maksim EW7DDR
BELARUS
135
158
These days I came across an old Trio JR-500S ham radio receiver that was selling for $50 and bought it. According to the data I found on the internet, the device was manufactured in 1966 by the ...
Short review of Trio JR-500S ham radio receiver, and comparision with SDRplay RSP1A software defined fadio
439
0
0
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
49
0
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