Bedini RPX Sideband Generator

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Thread: Bedini RPX Sideband Generators

  1. #71
    Senior Member Yaro1776's Avatar
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    Solavei
    General Question to the RPX users. Has anyone with Lyme disease used this device for trial? If so it would be very useful to share your experience, both positive and negative.

    Yaro

  2. #72
    Networking Architect Aaron Murakami's Avatar
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    Quote Originally Posted by sgielow View Post
    Aaron,

    I've connected the RPX & Frequency Generator (programmed)...
    Visually, all seem to be working...
    However, when I try and find the 3.1Mhz center frequency using a SDR (Software Defined Radio)
    tuned to that frequency, I'm not getting any RF signal.
    The antenna for the shortwave receiver is positioned adjacent to the banana output plugs.
    I've tried setting the receiver to CW, USB, LSB, DSB, and AM but no signal is detected.
    The receiver does pick up local broadcast stations, so I know it is working.

    From the banana plug outputs, I'm measuring (multimeter):
    a varying 5v to 10v AC potential with the sweep generator running.
    a relatively constant 2.3v AC voltage without the sweep generator.

    Is it possible the RPX device is defective or is there something about the signal (ie the 'pump wave')
    that could make it undetectable to a regular shortwave receiver?

    I'm thinking the SDR shortwave receiver (using the laptop visual interface)
    should be able to act as a rudimentary spectrum analyzer, showing the fundamental and sideband frequencies.

    Thanks,
    Steve

    Jeff,...


    AC voltages measured with a multimeter indicate an output from the RPX
    with and without the signal generator.


    The RPX independent signal measures ~8.6V DC and ~1V AC components.
    The composite signal measures ~8V DC and ~3.5V AC to ~4.5V AC components,
    so we seem to have a signal but possibly not at 3.1MHz(?).

    Hi Steve,

    I'll paste your message to Jeff to make sure I have all your questions. The message definitely wasn't deleted - I haven't seen it until now.

    When I bring the probe from the spectrum analyzer close to the banana jacks, I can get the 3.1MHz signal easily.

    For the sw radio, I honestly have no idea. I do know that when John ran the larger 10 watt units (with the linear amps) that he could pick up "tones" across town on his radio. That is how he described it at least.

    The function generator is very sensitive so can pick up weaker signals than what your radio will pick up and amplify.

    When I have the RPX unit on and the function generator is OFF, I get 6.7 VDC hooking the multimeter probes direct to the banana jacks with nothing plugged into those jacks and 292mv AC.

    With the function generator ON, I get 6.2 VDC and it slowly climbs and about 2VAC and it slowly drops.

    This is measured with a Fluke 79III multimeter.

    Testing a random other unit - 6.7 vdc and 310mvac with generator off.
    On = 6.3vdc and slowly climbs and 1.9vac and slowly drops.

    Your voltages are higher and I don't know why. What multimeter are you using?

    I also can't say whether the SDR should be able to act as a spectrum analyzer. It's really not the right tool for the job - just my opinion but I wouldn't trust it.

    All these units are tested twice before they even get to our hands for shipment by a very competent and professional circuit board assembly company. They do high end work for DOE, military, and many private companies - the quality is beyond belief. They're also fully trained in John Bedini's exact measurement method to verify the 3.1MHz fundamental and sidebands using the exact same protocols and they're even using the same equipment (since I provide it to them).

    At 19 seconds, you can see one of their techs that does a lot of their testing turn on the battery (without the function generator on yet) and get a 3.1MHz fundamental on the function generator. The first test they do is after everything is assembled. Then when everything is proven to work flawlessly and so far we have a 100% success rate, then potting compound is added to seal the circuits. The potting compound gets hot and after it cools down, this is going overboard, but I have them test each unit all over again. It isn't necessary, but my personal standards demand it. When it passes that second test and they're all done, we pick them up and they get boxed for shipping so we know that they're working 100% perfect when they leave our hands.



    Do you have access to an actual spectrum analyzer?
    Aaron Murakami





    You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete. ― Richard Buckminster Fuller

  3. #73
    The RPX sure looks like it is going to simplify my researching frequencies by the elimination of having to determine Hz!

    I am going to build a Coil like I saw in the video too and would like more power to drive it.

    So, I would like to find an amplifier, at low cost, that will cleanly boost the RPX output amps without ruining it,
    to reduce research times from 15 minutes to the 3 minutes like you mentioned in one of your videos on the sales page.
    You said a amplifier Might be developed in the future by you but, I'd like to find an alternative while waiting.

    Might this one I linked from Ebay, work to accomplish that? If not, please if you can, mention parameters I
    need to look for in searching to buying an amplifier.

    http://www.ebay.com/itm/1MHz-2GHz-64...gAAOSwkZhWTXz0

    Thanks,
    John

  4. #74
    Networking Architect Aaron Murakami's Avatar
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    Quote Originally Posted by jmkwisc View Post
    The RPX sure looks like it is going to simplify my researching frequencies by the elimination of having to determine Hz!

    I am going to build a Coil like I saw in the video too and would like more power to drive it.

    So, I would like to find an amplifier, at low cost, that will cleanly boost the RPX output amps without ruining it,
    to reduce research times from 15 minutes to the 3 minutes like you mentioned in one of your videos on the sales page.
    You said a amplifier Might be developed in the future by you but, I'd like to find an alternative while waiting.

    Might this one I linked from Ebay, work to accomplish that? If not, please if you can, mention parameters I
    need to look for in searching to buying an amplifier.

    http://www.ebay.com/itm/1MHz-2GHz-64...gAAOSwkZhWTXz0

    Thanks,
    John
    Hi John,

    These smaller RPX units have the square wave and the 3.1MHz+sidebands coupled together before they exit the output ports.

    In John Bedini's larger 10+ watt units, the square wave and 3.1MHz+sidebands were kept separate when they went into the linear amp.

    The linear amp would then separately amplify the square wave and and 3.1MHz+sidebands.

    After they were individually amplified, then the amplified version of each would then be mixed together on the output port.

    Can the signal that is mixed first then be amplified properly through a linear amp? I honestly don't know if that would negatively affect it or not.
    Aaron Murakami





    You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete. ― Richard Buckminster Fuller

  5. #75
    I deleted my question as I thought there was an issue but, NOPE...all is good
    Last edited by jmkwisc; 04-16-2017 at 10:54 AM. Reason: Retested and found no issues

  6. #76
    Networking Architect Aaron Murakami's Avatar
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    Quote Originally Posted by jmkwisc View Post
    I deleted my question as I thought there was an issue but, NOPE...all is good
    Great! Glad to hear it.
    Aaron Murakami





    You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete. ― Richard Buckminster Fuller

  7. #77
    Networking Architect Aaron Murakami's Avatar
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    Quote Originally Posted by erwei View Post
    hi Aaron
    i want to buy the RPX COMBINATION PACKAGES and bedini rpx book and video,the bedini rpx book and video is still free ?
    Hi, the RPX combo is available here: http://sidebandgenerator.com

    The Bedini RPX book & video were never free - they're available here: http://bedinirpxbook.com

    Months ago, we offered a free digital downloadable book or video from http://emediapress.com but those are different from the Bedini RPX book and video. The book/video package is a physical book/dvd and not a digital download.
    Aaron Murakami





    You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete. ― Richard Buckminster Fuller

  8. #78
    Networking Architect Aaron Murakami's Avatar
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    Quote Originally Posted by erwei View Post
    i want to buy one RPX SIDEBAND GENERATOR ,one RPX combo and one Bedini RPX book & video ,could you give me a discount?and how could i send the paypal payment?
    The RPX units are already discounted - the retail is $425 and the reintroductory price is $385. The RPX book & video is not published by us so we cannot discount those products - we're required to sell them at the same price the publisher does.

    You can email (help at emediapress dot com) for details. We can offer a deeper discount for bulk purchases of the RPX units.
    Aaron Murakami





    You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete. ― Richard Buckminster Fuller

  9. #79

    Rpx amplifier

    Hi Aaron

    What was the reason for choosing the present low power output vs john's 10+ watt model?

    Regards

    Oliver

    Quote Originally Posted by Aaron Murakami View Post
    The RPX units are already discounted - the retail is $425 and the reintroductory price is $385. The RPX book & video is not published by us so we cannot discount those products - we're required to sell them at the same price the publisher does.

    You can email (help at emediapress dot com) for details. We can offer a deeper discount for bulk purchases of the RPX units.

  10. #80
    Solavei
    Hello Aaron

    Just to say my rpx finally arrived, very excited to test it out now.

    A previous question of mine seems not to have made it here. What is the reason you guys chose the low power output vs the 10+ watt power of John's machine that you demo in one of your videos?

    I understand it may not be necessary but would be nice to understand the thinking?

    Regards

    Oliver

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