ODKAZY NA KV A VKV BASTLENÍ

 

·  UHF oscillator

·  Economoy short-wave radio

·  Linearized RF detector

·  Two-band radio

·  Shortwave conveter for scanners

·  FM Bug

·  AM Radio

·  Toroidal coil RF shortwave receiver

·  Crystal radio

·  CW RECEIVER 40/80 meter CW receiver

·  TRF AM Receiver circuit

·  WLW 500KW Transmitter Schematic

·  AM-Receiver for Aircraft communication (118.250MHz)

·  AM receiver for aircraft communications

·  80 Meter CW ARDF receiver

·  Four channel RF remote control

·  Build your own VLF Receiver

·  Receiver building blocks

·  Simple wireless radio data link

·  RX3302 receiver module schematic

·  Superregenerative 27MHz receiver

·  49MHz walkie-talkie

·  Convert 2m VHF FM PMR transceiver Motorola Radius M110 into an amateur radio

·  Vibrating pocket bug detector

·  2MHz RF Oscillator

·  50-150MHz Overtone Oscillator

·  Simple Op-Amp Radio

·  UHF - 100W Transistorized amplifier

·  50MHz Converter

·  RF front-end for triple conversion GPS receiver

·  2M - 20M transverter

·  Improved CMOS RF PLL sythesizer

·  Harmonic oscillator

·  Direction finder system

·  One transistor regenerative receiver

·  Synthesized HF receiver

·  TBA120 narrowband FM receiver

·  TDA7000 receiver

·  ZN414 receivers

·  10W HF linear amplifier

·  500W HF linear amplifier

·  3W HF QRP linear amplifier

·  Phasing SSB exciter

·  500mW HF linear amplifier

·  Generic VHF power amplifier

·  10.7MHz FM detector

·  RTTY terminal unit

·  Q-multiplier

·  CMOS RF PLL sythesizer

·  3W FM Transmitter

·  Crystal radio

·  Op-Amp Radio

·  Class B series modulator

·  Advanced VHF power meter

·  The MRX-40 Mini Receiver

·  External antenna for the GPS-38, Magellan 2000, or Eagle Explorer GPS receivers

·  AM Broadcast Band Active Antenna

·  Active antenna with gain

·  Ham Band VFO

·  HF Signal generator

·  Simple AM Radio Receiver & Amplifier

·  Bug detector

·  175KHz inductive pulse receiver (PDF)

·  200-400 MHz voltage controlled oscillator

·  AM/FM/SW active antenna

·  RF Sniffer <.5 to >500 MHz

·  Demodulator Schematic/Design

·  73MHz remote controller hallogen light

·  CB (27MHz citizens band) receiver

·  CB (27MHz citizens band) 2.5W transmitter

·  AM to FM conveter

·  AM BCB radio receiver

·  Regenerative shortwave receiver

·  7MHz SSB Transceiver

·  DSBSC (Double Side Band Supressed Carrier)

·  Frequency Synthesizer

·  Digital Automatic Gain Control (AGC)

·  Four Channel Wireless Transmitter and Receiver

·  PLL synthesizing oscillator (1)

·  PLL synthesizing oscillator (2)

·  PLL synthesizing oscillator (3)

·  2N2222 40 Meter CW/DSB Transceiver

·  Yaesu FT-736R doppler compensation

·  Phased lock loop schematic

·  30M PSK31 Transceiver

·  SOP receiver (PDF)

·  SOP direct conversion receiver

·  Receiver

·  30m direct conversion receiver

·  Popcorn direct conversion receiver

·  40m direct conversion receiver

·  80m direct conversion receiver

·  Huge LED Antenna Direction Display (part 1)

·  Huge LED Antenna Direction Display (part 2)

·  136 kHz direct conversion receiver

·  One Watt 2.45 GHz Linear Amplifier

·  222 MHz Transverter

·  VFO from 2001 ARRL Handbook, page 17.74

·  VFO from 2001 ARRL Handbook, page 14.20

·  Assorted RF circuits

·  14MHz SSB 10mW Transceiver

·  Building a Simple LF Exciter

·  Yaesu band decoder schematic

·  VLF radio receiver schematic

·  5 watt, 80 meter QRP CW Transceiver

·  How to Build a 300MHz AM, RF Remote Control System

· RF Modem Robotics Project

·  PLL FM transmitter

·  ICOM CI-V interface with RS232 RTS to PTT

·  Improved FM Stereo Modulator

·  Smooth Tone Clickless CW Sidetone Generator

·  Variety of receiver converter projects

·  One transistor FM receiver

·  42 Mc Band to 88 Mc Band (retrofit converter) Project

·  Crystal radio circuits including diode performance comparison

·  50MHz Assistant (Preamp & Power Amp.)

·  Bug detector

·  Basic RF oscillator

·  Radio Control Electric Switch

·  56K RF Modem

·  80M ARDF direction finder

·  Li'l 7 AM Transmitter Schematic

·  Wireless microphone

·  XTAL locked tone transmitter

·  AM oscillator for wireless microphones

·  Wireless microphone

·  1W CW Transmitter

·  433MHz transmitter using SAW resonator

·  A 3m (100 MHz) small bug

·  Basic FM Transmitter

·  Micro Power AM Broadcast Transmitter

·  FM Beacon Transmitter (88-108 MHz)

·  1 valve CW transmitter

·  250mW HF CW transmitter

·  2 valve CW transmitter

·  Transmitter using LM317

·  5 Watt HF CW transmitter

·  Simple FM microphone

·  FM bug

·  High power FM bug

·  27MHz AM/CW transmitter

·  Easy 2-meter transmitter

·  QRP HF transmitter

·  Spark gap transmitter

·  QRP SSB transmitter

·  Crystal controlled FM transmitter

·  150mW FM transmitter

·  FM transmitter

·  Simple Low FER Transmitter

·  7Mhz AM/CW Amateur Radio Transmitter

·  VHF FM transmitter

·  Simple FM transmitter

·  Wireless microphone

·  Shortwave radio transmitter

·  175KHz inductive pulse transmitter (PDF)

·  7MHz QRP transmitter

·  Small Radio Transmitter

·  FM Telephone Transmitter

·  4 watt FM transmitter

·  FM transmitter bug

·  Small radio transmitter

·  AM transmitter

·  2 Transistor FM Voice Transmitter

·  15 watt FM transmitter

·  4 watt FM transmitter

·  Tiny FM transmitter using SMD (surface mount devices)

· Medium range transmitter circuit

·  AM FM Simultaneous Transmitter Using Digital IC (CD4001)

·  Tracking transmitter

·  5W PLL Transmitter

·  Miniature FM transmitter

·  Sensitive FM transmitter

·  Simple RF transmitter

·  1.5 volt tracking transmitter

·  Tracking transmitter

·  Micro Power FM Broadcasting Circuits

·  Low Power FM Transmitter

·  RF/SS Handie Hopper Transmitter Schematic

·  30-Meter QRP Transmitter for Morse Code

·  Miniature FM Transmitter #1

·  Miniature FM Transmitter #2

·  Miniature FM Transmitter #3

·  Light sensing RF transmitter

·  Micro-Spy with FETs

·  Micro-Spy with USW

·  Micro-Spy with TTL