1. In celebration of the launch of the new redesigned site, we just gave away a FREE antenna! Click Here to See Who Won!

Virtual SWR meter

Discussion in 'Ham Equipment' started by Need2Know, Feb 7, 2012.

  1. Need2Know

    Need2Know KK4GMU - The Villages, FL

    Joined:
    Jan 26, 2012
    Messages:
    128
    Likes Received:
    7
    Is there any such thing as software that displays SWR without the need for a physical meter? Is it physically possible for software to do this?



    Leave it to a newbie to ask this kind of question.:blink:
    #1
  2. W5LZ

    W5LZ Crotchety Old Bastard

    Joined:
    Apr 8, 2005
    Messages:
    6,834
    Likes Received:
    725
    I would imagine that there could be. It would have to do the 'sampling' like a 'real' meter, so basically would only be a difference in how the results of that sampling was done. Would that be a 'virtual' meter?
    - 'Doc
    #2
  3. RatsoW8

    RatsoW8 Supporting Member

    Joined:
    Nov 3, 2009
    Messages:
    2,039
    Likes Received:
    577
    You'll always need the "physical" part of the swr meter actually in-line measuring the swr. No way around that. Then you would need an interface and software to display the results on a PC. Linky below to a unit that does this.

    Wavenode SWR and RF wattmeter with computer graphics and DC power monitoring. Complete with SWR protection and high power remote sensor. Also includes audio and voice announcement of RF power and SWR.
    #3
    1 person likes this.
  4. Need2Know

    Need2Know KK4GMU - The Villages, FL

    Joined:
    Jan 26, 2012
    Messages:
    128
    Likes Received:
    7
    No cost savings there. I wonder what's involved in the physical sensor - why it has to be so pricey? Lack of economies of scale? Complex circuitry? My guess is the former.

    I would think there could be some significant cost saving in a sensor/software combination by eliminating the physical meters, controls and some circuitry that could be handled by software.

    But I suppose the least cost is in the physical hardware. The most cost is for recouping the design, tooling, assembly, marketing, and distribution cost. Even if fully "virtual", the marketing and distribution costs are still significant.
    #4


Share This Page