Posts by SaTom

    Dear DX amateurs!

    The last one year, significant changes the U.K beams parameter. Several transponder, and/or frequency dramatically difficult to reception became in (also) Hungary, many cases the system mode DVB-S to S2 , FEC 2/3 to 5/6, and the modulation QPSK to 8PSK changed, this increased C/N Lock value.


    "The new challenges require new solutions", therefore I decided, that design the special waveguide, and for it one modificated LNB converter also. In design important was a point of view, that the biggest efficiency factor, come in the low band frequency range, therefore i planned also three tuning elements.

    (This frequency band wich the most difficult receipting.)

    When I finished the design, sending to my friend zoro67 the drawing, and the produced it the prototype parts. (Thank you Zoro67, nice work!)

    The produce technical drawings, the produce pictures, and the "How it work?"

    The first attachment, one technical drawing, the "IDLP SFLANGE LNB plan cuting_low_res.png" picture. This plan presenting with the Inverto White Tech IDLP S-Flange S/N: P08 series original and modificated plan version. In the plan upper sides two the original, the lower is the modificated LNB showing.

    The second attachment, the "Inverto White Tech IDLP_S_Flange_P08_Original.jpg" picture. This picture presenting to the original Inverto White Tech LNB. It can be seen that here the flange and the waveguide are also part of the LNB.

    The third, and the fourth attachements, the "Mod_Inverto_White.jpg, Mod_Inverto_White_II.jpg". This pictures showing the modificated LNB cover, with the new screw probe console. (Technically, removed the LNB flange and waveguide elements, then produced, and aplied the new screw probe console. This solution allows you to, that the probe the size of the part of extending into the waveguide can be adjustable, which can thus be changed according to the wavelength of the frequency (more precisely well as the λg). This is the first tuning option, λ/4 to λ/2.)

    Fifth, and sixth attachment, the "Mod_Inverto_PCB.jpg, Mod_Inverto_PCB_new probe.jpg" pictures, this showing the modificated LNB PCB boards. (Technically, I removed the Vertical and Horizontal probe, then I had a 14K gold probe with a suitable cross-section and length manufactured, which put in to the Vertical probe place.)

    Seventh attachment, the one picture the definitively modificated LNB "Mod_Inverto_White_with_probe.jpg". (The probe is longer than the console. The protruding probe part, extends into the waveguide when assembled.)

    Eighth attachment, one technical drawing, the "Waveguide for IDLP_low_res.png". This picture showing the specially waveguide. (The circular waveguide inside diameter (λg), calculated for the low KU frequency band. )These drawing have it more also elements, with the adjustable back short circuit plate, and the reactive screw adjustment, for the best tuning. (This is options, the second and third tuning options. The three tuning element, together, it makes it possible to achieve the best RF power, SWR and reactance factors, ergo the best available reception performance.)

    The ninth attachment, the "Specially_waveguide.jpg" picture. This is picture presenting the definitively produced waveguide device. (In the the Backshort plate outside, a little milling is visible, this can be adjusted with a screwdriver. This is the option, for the backside reflection adjustment. And with the screw, can be adjusted the inductive or captive reactance.)

    I hope you liked the presntation, I welcome questions, corrections, and/or the comments.

    Of course, the project it didn't end, we still have a lot of tests and technical clarifications ahead of us. As soon as the successful tests performed in the home environment are completed, I presenting also the reception reports. :-)

    Best regards,


    Dear amateurs,

    in the absence of time and in the shadow of the new wavegiude project, a short "outlook" should follow, which is intended to show what results can be achieved in the field of the upcoming summer and typically evening peak periods (In Hungary):

    11305 H, tp 109, UK, DVB-S, 27500, 2/3 (11306 H) 5.6 dB

    11306 V, tp 110, UK, DVB-S, 27500, 5/6 (11307 V), 7.1 dB

    11344 V, tp 112, UK, DVB-S, 27500, 5/6 7.3 dB

    12382 H, tp 35, UK, DVB-S, 27500, 5/6 7.5 dB

    Best regards,


    Dear, S-!

    Thank you this test, and the your work.

    Hmm, suprised me this report.

    Many bad value in the commercial category, not I would have thought that Invacom the worst.

    I think the MTI is rleative good LNB, maybe the best the KU band IF frequency range impedance relations.

    (But, unfortunately the MTI AP8, not the best sensitive LNB for DX.

    I tested the few years ago, the Inverto White Tech IDLP S-Flange more sensitive, I still use it to this day.)

    Best regards,


    Dear, S-!

    Great study the LNB impedances, thank you.

    I like the Smith chart presentation, good showing this measuring values, i using this chart to the my waveguide planning works also.

    (Paul Wade presented in 2001 the "Circular Waveguide experiement" studis, this articel my planning basis.)

    I have question:

    Do you make also the "comercial" KU LNB measuring?

    Example, Inverto IDLP S-Flange, Invacom SNF/QTF, MTI AP8, etc.. This is types, working in the 75 impedance, I would like to know,, how working in the realistic system.

    Greating thanks!


    Hi, Femi!

    Yes, the spectrum peaks the one anomaly, may also 5G or any interference. The probelm, if the peaks level higher, with in the Satellite recepted minimum signal.

    Few month ago, I writed study in this anomaly, please read it: fórum

    (The study writed Hungarian language, please use translater)

    (I love it the garden work, the my firstly hobbi :-)

    I have two garden. One small cca. 500 nm, this live me and family, and the vineyard in Balaton, the one hectar. )

    Dear, S-!

    Great measuring, thank you!

    This test good presenting, that "maybe" the too high the "noise" in the your QTH, -69dBm.


    As I know that "noise" cannot be higher than -60dBm, this in standard is the base station cases.

    Therefore you measuring method dont ideal, because used feed, and scalar, the measuring value too higher. The reason for this is, that

    this two elements functioned with gain factor, ergo gain to the "noise" signal.

    The precision meauser device this case, the example HyperLOG antenna.

    Best regards,


    Dear Satesco, dear DX amateurs!

    We will soon make available a presentation based on a 24-hour measurement time interval that explains the operation of the software in detail. (Later on the project page, we will also publish it under the name "User Guide")

    1. We will introduce the software installation methods

    2. We describe in detail the software settings to be made before starting the measurement, the ways to fill in the input and drop-down fields

    3. We analyze and evaluate the measurement results

    4. We present how the information obtained from the evaluations and results can be useful for users

    5. At the end, we present some examples of how you can improve the efficiency of your own systems by knowing all this information

    We hope that the detailed description will be useful for all dear users, please be patient until it is published!

    Thank you,


    Dear, Satesco!

    Thank you for testing this new software.

    In order for us to be able to help you, please provide the reception parameters, such as 7W 11559 V 27500 etc.

    If you are not using the software as an extension or "extensions" and your system's default browser is Edge, you can take the following steps:

    1. If you downloaded this software, unpack to an any folder, and right mouse click the "index.html" button, select the "Open with", and click the Firefox icon, or name

    2. If you downloaded this software, unpack to an any folder, and drag-and drop "index.html" to Firefox active window.

    Best regards,


    :-) Breaking news! :-)

    Dear Satellite Dx amateurs!

    Available the first public R.A.M.F SNR Reporting software version, to the GoldMaster SR-525 HD!

    Project link:

    GitHub - Csnyi/RamfReportSnr: SNR report with sr-525hd
    SNR report with sr-525hd. Contribute to Csnyi/RamfReportSnr development by creating an account on GitHub.

    (The software can be downloaded from the project page. Click on the green " < > Code" button and select "Download ZIP" from the drop-down list.)

    How use software in the browser?

    1. If downloaded this software, unpack to an any folder, and load "unpacked extesion" in to browser, or

    2. If downloaded this software, unpack to an any folder, and clilck the "index.html" button. The browser load to the WebAPI software.

    We wish you successful tests and fruitful work using the software!

    We welcome all comments, and feedback on the project page.

    Best regards:

    Csnyi, and SaTom

    Dear Ocean!

    Thank you this picture, yes, I now understand, what is say you to me. :-)

    Your maked picture not LM value, the Signal value depict.

    The SNR Reports application with diagram show two value, Signal (blue), and LM (orange).

    Of course, the LM value never "lower" than -0,3 dB. If it does not locked the signal, signal noise ratio is not can it be calculated, therefore neither is the LM line, so this line zero.

    The Signal, not LM, of course can be lower than -0,3 dB Unlocked value also, and lcan also be long times. Momently i dont have this status depict picture, but i have the today morning maked measuring screenshot, 28E 11426 V (10h_11426v.png)

    This picture good depict the not locked, and locked signal level, and LM, int the 10 hours mesuring timeline.

    The next zoomed diagramm in picture, show the many negatíve LM value. These negative values, also persist for a longer period of time than one second. (min_LM.png, Red marker)

    To clarify my previous post,, "and in the case of a minus sign, what is the value that would be necessary a successful for image creation. (e.g. UV green markering, where a -0.3 dB signal loss is visible)"

    I hope that this is a better write to describe how the software works.

    Have nice evning!


    Hi, Ocean!

    Yes, this picture showing to one second degradations.

    The reason is that this reception is almost always available to me, and I suddenly didn't have a better "example".

    Maybe tomorrow I will do a longer test run with the 28E, so that I can present it as well.

    Have a nice evening!


    Dear Satesco!

    Of course, this device not professional hardware, this is one explicitly low cost build (and price), but this fuctions surpasses that of commercial devices. The symbol rate not support the extreme value, e.g AMSAT receptions, but the satellite RF tuner sensitivty better than e.g. my TBS6903 PCIe, but a device can be a DX device not only because of its special sensitivity, but also because of its functions.


    Perhaps you remember the DR. For HD F15, Garnd triple, or HD 1000 types.

    Well, this device is most comparable to these, where new options and functions may have appeared even in ordinary commercial devices, such as the spectrum analyzer, or the display of dB values, which was a rarity at the time.

    Now, all this can be achieved with so many differences that it is now "dressed up in a new guise" and other great functions have become available, let's look at only S2, S2X, T2MI, SAT to IP, etc. foundations, which in themselves are no longer secondary compared to their "predecessors".

    Such more also have the the mobile apk and the open web API due to their many unexploited possibilities. They provide additional functionality even for an average user, as they go well beyond them.

    Currently, apart from this product, no commercial device on the market provides such "Swiss army knife" options, so based on its functions, I think it deserves the category of DX devices.

    (Based on my knowledge, more than one employee worked on the development of the R.A.M.F. who also participated in the development of the DR. HD that year. Perhaps it is not a coincidence that many of the same functions.)



    Hi, Ocean!

    Yes, this function working in the according to the user manual "Open_WEB_API_ver.1.17_eng.doc":

    "Status field--->Description

    snr--->signal quality, dB

    lm_snr--->link margin, dB"

    In the previous picture showed the unlocked signal, and negative Lock Margin, -0,3 dB.

    Bests, regards


    The latest version of the GoldMaster SR-525HD “R.A.M.F SNR Reports” reporting application!

    The new version is 3.15.01 (beta release)

    This time, a new special function, which can almost be called the "Holy Grail" for DX amateurs, will be presented, which until now was almost only available with high-end premium devices (Unaohm, Rover, Televes, Rohde and Schwarz, Sefram, etc.), namely the LM i.e. Lock Margin measurement method!

    Of course, the application also contains additional surprises and updates, the most noteworthy of which is that the application can now be integrated into systems as a browser extension. J

    What happened so far?

    It was presented, why and how important it is to have not only instantaneous measurement results, but also 24-hour measurement results displayed on a graph, since it is not uncommon for signal loss to occur even with a precisely adjusted antenna. Its causes have also been established, which are none other than e.g. the effect of the combination of low signal level and satellite wobble. Last but not least, it was detailed how this software helps to eliminate this phenomenon with a high probability.

    NOW, the LM or Lock Margin measurement function is introduced:

    The Lock Margin parameter is an essential part of every receptcions report, which provides information on the value at which the receptoin exceeds the minimum signal level at the given moment, and in the case of a minus sign, what is the value that would be necessary for a successful reception. (e.g. UV green markering, where a -0.3 dB signal loss is visible)

    This is a very important function of the software, from now on e.g. in the case of the signal loss described above, information is not only available about the time of its occurrence and its time window, which is of course very useful in itself, but also about its extent, so it can be determined exactly what level of difference we are facing!

    Change log:

    * the software can already be integrated as a browser extension

    * can be run on both mobile (e.g. Android, iPhone) and desktop (Windows, Linux, Mac OSX) devices

    * modified user interface

    (Corrected menu, value and parameter names)

    *new application icon and "About" menu

    Have nice weekend!

    Best regards: The developer, and SaTom

    Dear Satesco!

    Thank you, that following the project!


    This project and promotions NOT OFFICIAL GoldMaster project, only my friend home made developing. The promotions dont have in the software download links, this is because, the software momently developer version.

    Of course, the software will soon be available to the public on the GitHub page with a download link, license, support, and of course also version tracking. :-)

    In the meantime, we ask for your understanding and patience!

    Thank You!


    New version for R.A.M.F „SNR reports” tool!

    Again one week passed, added the newest functions, and more precisioned settings modes to reporting tool. :-)

    The new version 3.06.02

    (beta release)

    Change log:

    * new user interface

    (Corrected menu, vale, and parameter names)

    * new menu in to the Frequency parametering settings

    (Added the LNB Local Oscillator parametering box. Now, dont need calculating the IF frequency value, just selecting from the drop-down list the appropirate value.)

    * new "Polarization" input methode

    (Now you don't have to adding the int 0, or 1 parameter, only selecting the "Horizontal", or "Vertical" polarisation mode from the drop-down list)

    * new "Tone" input methode

    (Now you don't have to adding the int 0, or 1 parameter, only selecting the "On", or "Off" the 22kHz mode from the drop-down list)

    * new "DISEqC" input methode

    (Now you don't have to adding the HEX code parameter, only selecting the type 1.0, or 1.1 options switch port.)

    * new "3D converter polling" input methode

    (Now you don't have to adding the int 0, or 1 parameter, only selecting the "Enabled", or "Disabled " mode from the drop-down list)

    * new measurement "Time Limit / SNR Report" input methode

    (The time stepping modified second to minuts intervall)

    * new names to the Locking status indicator

    ("jel" modified to C/N name, and corrigated the update intervall for 20 seconds (one cycle request))

    We will soon make the webAPI application available and downloadable for everyone!

    Have a nice weekend!

    Greetings from the developer and SaTom! :-)

    Dear all, dear DX amateurs!

    Please view this linked turtorial video, with showing how it work the new webAPI interface wich the GoldMaster SR508 and 525 HD new measuring, logger, and chart features are available.

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    This interface features in many funcion, but maybe the most importatn function, the signal-to-nois and LM chart.

    The chart timeline showing the measuring time highest and lowest signal data too. (example 24 hours measuring case)You knowing, the satellites signal value, not linear in the 24 hours time. Variable, example the satellites due to its " eliptical swaying". Therefore the two measured extreme signal value, also a one time window too, which is a good opportunity that sett prcision the dish. :)

    Best regards,