A Project by:

Tony / I2TZK, Frank / K7SFN , Dinesh / VU2FD

Dual Channel GRAPHIC LCD SWR Meter:

Our present projects, uses dedicated CPU and hardware to address a specific task, like SWM3 or FC3 etc.

Graphic CPU used in SWM4 is a core of our "INFINITY" Project and it is developed keeping in mind that we use same CPU/LCD/Hardware for various Purposes or Projects, saving a lot of money in hardware. 

SWM4 is a dual channel HF / VHF SWR Meter comprises of three Units:

1. Graphic CPU and

2. An Interface Board to connect various types of HF/VHF Bridges: SWM4-INF-1013

3. HF/VHF Bridge

SWM4: Graphic CPU-0613:

Click above picture for larger view

SWM4 Interface Board for Various Bridges:

SWM4-INF-1013

Click above picture for larger view

SWM4 is also a Frequency Counter!!:

Click above picture to enlarge

SWM4 SWR Meter Hardware Details:

	Graphic CPU (GCPU-0613) hardware details:
	128 x 64 Graphic LCD with Back light control     DC12V or USB Powered    Expansion slot for relays and alarms (FRC16)   8 DIP Switches for CPU Configuration
	SWM4 Interface board is designed to connect Graphic CPU to various types of HF/VHF Bridges: Analog or Digital.
	You may build your own bridge or buy Simple, Dual Scale or HFB3 or HFB5  type of HF Bridges available in kits
	With Suitable Bridge having  "RF Sense" output, we also get SWR + Frequency of the signal under test (Max. 50MHZ)
	Powder Coated Free Cases for CPU, Interface board and Bridges are available.