Automatic SWR meter with only 2 dig 7-seg display
The standing wave ratio meter is based on the ATMega8 or 48 microcontroller. Connects to SWR brige of any design. The inputs are connected to the measuring line in any order. The program itself will determine the direct and reflected channels. For normal operation of the SWR meter, it is necessary that the output voltage of the measuring line does not exceed 4.5 volts.
The device takes continuous measurements and displays SWR values from 1.0 to 9.9. SWR > 9.9 is not indicated, “Er” - Error appears on the indicator. If there are no signals at inputs 1-2-3, the indicator shows “—“. The device is powered either from an external power source with a voltage of 5 V example from mini USB poewr supply, or from batteries with a voltage of 4.5 V.
The microler use internal generator. Fuses do not need to be programmed, are used factory default settings.
Automatic SWR meter with only 2 dig 7-seg display
*PCBWay community is a shared platform and we are not responsible for any design issues.
- Comments(0)
- Likes(0)
- 0 USER VOTES
- YOUR VOTE 0.00 0.00
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
More by Andrei Bochkarev
- Quazi Analog Tahometer for gaz engines Atmega328 based Quazi Analog Tahometer for gaz engines. Cars and light aircraft. The tacho is disign...
- Pico based radio controled motor driver Pico based motor driver.Radio control enable.
- Very simple SWR meter Typically, amateur designs use an SWR meter based on a directional coupler, which has an incident an...
- A step motor as rotary encoder You can use any micro step motor as rotary encoder with standart Arduino library.
- DC-DC Step-Down converter from 15-30 to 12V Features Up to 95% Effeciency Input Voltage Range: 15-30VOutput voltage: 12V600 mA Output curent
- Regulated Power Supply 24V 10A Regulated Power Supply 24V 10A. Atmega328 based.
- ZX Spectrum clone based at STM32F401 (with VGA output and PS/2 keyboard input) ZX Spectrum clone based at STM32F401 (with VGA output and PS/2 keyboard input)
- MPPT solar panel controller DIY MPPT solar panel controller. 1KW - 48V, 25 A.
- ZX Spectrum clone based at STM32F401/BlackPill ZX Spectrum clone based at STM32F401/BlackPill with VGA out.
- O2 Sensor Tester ( Lambda Sensor) O2 sensors do wear out and eventually need to be replaced. The performance of the O2 sensor tends to...
- Rapsberry Pi IO PCB Rapsberry Pi input-output board. Easy address modification by DIP switches. Power and INTA-INTB op...
- Digital odometer and quasi-analogspeedometer Digital odometer and quasi-analog speedometer. For common anode 7-seg displays.
- Simple Arduino based frequency counter with S-meter Simple Arduino based frequency counter with S-meter. Max F -8 mHz. You canvuse for superheterodine o...
- Arduino based Frequency Counter with S-meter for radio receivers and/or transmiters Arduino based Frequency Counter with S-meter for radio receivers and/or transmiters.You can use it w...
- Arduino based Signal generator and frequency counter Arduino based Signal generator and frequency counter.Frequency counter input up 6 mHz;Sinus signal o...
- LNB power supply for RTL-SDR with Biass-T LNB power supply with Biass-T for RTL-SDR. You can receive the signal from Starlink beccons andfrom ...
- A compact antenna analyser with graphic colour display for 1-30 mHz A simple antenna analyzer is a helpful gadget which will tell us about the frequencies to which a pi...
- Si5351 based synth with S-meter Multiband (1-30 mhz) Si5351 based synth with S-meter. Usable for superheteodyne (you can change IF i...
-
-
-
-
-
-
Open Source Very Large Stick - Freejoy & MMjoy2 breakout board
669 0 0 -
RF Control training board for students based on ESP32 C3
853 0 2