CrazyScan oder IQmonitor? Was ist schneller und genauer?

    • Offizieller Beitrag

    In der vorherigen Nachricht werden aus irgendeinem Grund die angehängten Bilder nicht angezeigt.
    ich werde aber trotzdem ein hochauflösendes spektrum veröffentlichen, das wie bei CrazyScan in 100kHz Schritten erhalten wird.
    Nur ohne die RFscan-Funktion, die auf manchen Karten einfach nicht funktioniert ...

    • Offizieller Beitrag

    Die Ergebnisse der Arbeit des Programms IQmonitor 2.3.0.1 werden mit dem Referenzprogramm CrazyScan verglichen.


    Beide Programme arbeiten mit der gleichen 1-MHz-Frequenzstufe und der gleichen Ausgangsskala.
    Das RF-Spektrum wird angezeigt (mithilfe der RFScan-Funktion), das in 92 Sekunden registriert wird
    CrazyScan registrierte ein ähnliches Spektrum in 111 Sekunden.
    Als Nächstes wird ein Spektrum mit Kalibrierung demonstriert, das die Ungleichmäßigkeit der Amplituden-Frequenz-Reaktion der Empfangseinheit (Antenne, LNB, DiSEqC-Geräte, Abstiegskabel und PC-Karten-Tuner) verringert
    Dann werden die Spektren mit den Ergebnissen des üblichen BlindScan angezeigt:
    - Die Blindsuche von IQmonitor 2.3.0.1 dauerte 271 Sekunden.
    - Die CrazyScan-Blindsuche dauerte 1806 Sekunden und sperrte nicht alle Transponder.
    CrazyScan im BlindScan 2-Modus hat 100 Träger in 100 Sekunden gefunden und 4 weitere Transponder geladen. Kein langsamer Transponder ist gesperrt.
    Schließlich wird ein hochauflösendes Spektrum mit einer Glättung im 3-MHz-Band gezeigt, das ohne Verwendung der RFScan-Funktion in 907 Sekunden erhalten wird und während dem 3 langsame Transponder gesperrt sind.

    • Offizieller Beitrag

    Vergleich des Empfangs von Transpondern mit niedriger Geschwindigkeit -
    CrazyScan hat keinen der drei Transponder gefunden oder gesperrt,
    die von IQmonitor im Automatikmodus gefunden und anschließend gesperrt wurden,
    und ihr Transportstrom auf UDP wurde mit TSReader analysiert :73:

    • Offizieller Beitrag

    Ich habe die Antenne auf 90 ° E abgestimmt - Yamal 401 und
    Ich habe den Betrieb von IQmonitor im normalen Modus und im hochauflösenden Modus (Schritt zwischen den Pixeln des Spektrums bei einer Frequenz von 0,4 MHz) überprüft.


    Verglichen mit der Arbeit von CrazyScan an den gleichen Registrierungsparametern.
    Da der Frequenzsynthesizer der OMICOM-Karte mit einer Auflösung von 0,8 MHz arbeitet, werden Schritte auf dem CS-Spektrum mit demselben Schritt beobachtet.
    Auf dem hochauflösenden Spektrum sind viel mehr Transponder, einschließlich langsamer, zugeordnet.
    CS "sieht" einige von ihnen, kann aber nicht einmal die Parameter der Träger bestimmen, obwohl die Konstellation zeigt, dass dies ein DVB-S-Signal ist ...
    Ich denke, das liegt an der Einbandübertragung von Signalen in diesen Transpondern.
    Wenn wir die Ergebnisse des Blind- und des manuellen Scannens vergleichen, fällt auf, dass CS die SR-Werte in der Regel um 1 unterschätzt.
    Dies ist höchstwahrscheinlich ein unbedeutender Fehler im Zusammenhang mit dem Übergang von real zu ganzzahlig ... :28:


    Wie aus der resultierenden Transpondertabelle ersichtlich, hat IQmonitor die Parameter von 27 Transpondern :73:
    und CrazyScan - nur 17 - gefunden und bestimmt

    • Offizieller Beitrag

    Big changes have been made in IQmonitor 2405:

    - the range of registered RF has been expanded up to 2500 MHz, which will allow expanding almost all reception ranges;

    - accelerated work of the main procedures for obtaining RF and HR spectra;

    - work continued on improving the quality of the recorded spectra.


    Below is a comparison of RF spectra, the first of which was registered and processed by the IQmonitor program in 10 seconds, the second was simply registered by the CrazyScan reference program with the same frequency step (6 MHz), which is clearly seen from the breaks of the spectrum line in 11 seconds:


    The spectrum unevenness recorded by the CrazyScan program is -41.5 - (-29.0) = -12.5 dBm

    Spectrum irregularity registered by IQmonitor is -36.5 - (-36.2) = -0.3 dBm

    Thus, the IQmonitor program compensated almost completely (by 12.2 dB) the nonlinearity of the amplitude-frequency characteristic (AFC) of the receiving installation.

    The difference of 2.5 dB between the noise level in the lower and upper frequency sub-bands is compensated.

    As a result of the deconvolution procedure, the minima between the peaks of the transponders deepened, and their height approached the SNR value determined by BlindScan.

    By the time of registration (with processing) of the spectrum, the IQmonitor program beats CrazyScan only 10% of the time, but the quality of the spectrum is much higher.

    You can see for yourself, because the spectra were obtained with the same frequency step, but displayed in exactly the same scales.

    • Offizieller Beitrag

    Quote from stephan94

    Hallo.

    Mit der letzte version 2406 von IQMonitor habe ich wieder auf 62° Ost probiert.

    Auch dabei eine Probe mit crazyscan.

    in dieser Fall ist IQMonitor lamgsamer , aber er hat nur zwei Transponder nicht gelockt

    Crazyscan wra schneller , bei ihm aber waren 4 Transponder nicht gelockt , und sogar eins nicht gefunden.


    With the last version 2406 of IQMonitor I tried again at 62 ° East.

    Also a sample with crazyscan.

    in this case the IQMonitor is slower, but it only has not locked two transponders

    Crazyscan was faster, but 4 transponders were not locked and even one was not

    found

    • Offizieller Beitrag

    Thanks to the efforts of the satellite reception meters of the highly respected s-band and qwer , we are able to compare the scanning of the 16.0°E Eutelsat 16A satellite in the Ka band with the reference spectrum.

    CrazyScan found 3 transponders in automatic mode,

    IQmonitor found 14 transponders with direct HR BlindScan



    moonbase just posted a fresh HR spectrum that I provide below:



    And for the sake of completeness, today's scan by respected qwer :


    • Offizieller Beitrag

    strannik Thank you for the comparison all in one post. I sometimes scan sections in Crazyscan so in the example you showed it identified 8 automatically and 2 manually (21534 & 21564) and missed one all together (21541).


    Signals seem to come and go from this satellite and the relative levels seem quite variable. Tonight 21534 was not on. Here is the CS scan and a spectrum. CS identified 8/10 and still missed 21564 in the auto-scan.


    I must try IQMonitor again!


    1.2m Prodelin 3122 az-el with one of:
    S: Helical feed, 0.8dB NF LNA, X: 1.2dB NF LNA, conical feed,
    Ku 12-18GHz: corrugated conical feed, 1.5dB NF LNA, Ku (Standard): SMW Q-PLL type C, Prodelin feed. Ku (Extended): 11.3GHz LO SMW & Prodelin Feed Ka: Gilat ex-ODU PLLs Gilat feeds, Ka 18-26.5GHz: Patriot feed, home made 4dB NF LNA, Ka DSN: Corrugated conical feed, home made 3dB NF Down-Converter

    1.5m IRTE, Polar mount with Octagon OSLO mod. C120, IRTE feed
    40km East of London, UK

    • Offizieller Beitrag

    Compared the work of CS and IQmonitor Pro on the Yamal satellite at 90°E


    First, with a step of 6 MHz:



    Found 26 transponders in 238+19=257 seconds

    Then the scanning was repeated with the smallest possible frequency step - 1 MHz:




    Found 26 transponders in 413 + 3187 = 3600 seconds

    None of the low speed transponders were found.


    Scanning in RF spectrum mode with IQmonitor Pro lasted 799 seconds, 28 transponders were found:



    In high-resolution spectrum (HR) mode, 41 transponders were automatically found in 1805 seconds (1.6 times more than CS, and 1.7 times faster):



    The same spectrum, but with smoothing Sm = 3:



    After an additional, "manual" search, 4 more transponders were added to the spectrum (in total, 45 transponders were found against 26 for CS).

    Compare the accuracy of SR determination between CS and IQmonitor Pro:


    • Offizieller Beitrag

    flie`s 45°W scan

    Zitat

    45°W C-band liner scan (with opposite polarity)

    TBS6903X ;

    it very strange to see a big difference in Blindscan's results between IQmonitor-pro & Crzayscan !

    I will give here a comparison of IQmonitor Pro and CrazyScan scanning, which was made by a respected flie :



    Above is the spectrum of DVB signals, which is received in IQmonitor Pro, and below in exactly the same frequency scale - the spectrum of RF signals at the input of the DVB S2X card, which was obtained by CrazyScan




    CrazyScan has detected 6 transponders, half of which correspond not to peaks, but to dips in the spectrum.

    IQmonitor Pro has detected almost twice as many transponders, which correspond to signal peaks. The only 1 transponder detected in CrazyScan and not detected in IQmonitor Pro has a peak on the spectrum of the latter (highlighted in pink).

    On the spectra of IQmonitor Pro, a black thin line shows a graph of time during which the program tried to determine the parameters of a signal with subthreshold RF peaks that had signs of DVB modulation

    Parameters of transponders, as always, are more precisely defined in IQmonitor Pro:


    74464-45-0w-3764-v-1-jpg


    74463-45-0w-2109070433-jpg


    I, as the author of IQmonitor Pro, trust my program more than CrazyScan


    What program (and why) do you like? :4:



    • Offizieller Beitrag

    Yesterday I tested the programs when receiving the Astra in the 19 ° 2E position.


    This companion is attractive for tests for a number of reasons:

    - Ku band is densely filled with transponders;

    - despite the high level of the signal from the satellite, the radio relay line with circular polarization at frequencies of the order of 10720-10760 MHz and the level of pickup on the "bare" LNB ~ 20dBm interferes with the reception;

    - on the forum satseco published observations of this satellite on a 1.5m antenna (I have 1.05m) and a TBS 6983 map, like mine.


    XxaCFt5.png


    Therefore, the comparison of programs will be quite objective.


    Let's start with the CrazyScan program in horizontal polarization, where there are 54 transponders.

    Before BlindScan can work, the CrazyScan program needs to register the RF spectrum:



    The spectrum turned out to be so-so, the registration time was 46 seconds.


    After that, the usual blind search procedure was launched, which in 1152 seconds found ... 30 !!! transponders:



    Apparently, the intermodulation coherent interference from the microwave link, which affects the aperiodic low-noise amplifier LNB, distorted the phase spectrum of the signals much more than the amplitude spectrum of the RF, and did not allow BlindScan to detect and lock 24 !!! transponder.


    But this did not deprive us of our optimism - CrazyScan supports the "magic" BlindScan-2 mode, in which the situation is completely different:



    54 transponders found in 54+46=100 seconds, 53 transponders were locked.


    In total, the program in this mode detected 101 transponders via the satellite, 99 of which were locked - a decent result in 106+92=198 seconds:



    The IQmonitor software in HR mode for blind scanning does not require preliminary acquisition of the RF spectrum, therefore, all 54 horizontal polarization transponders were received in 39 seconds:



    When obtaining the total HR spectrum with a step of 1.726 MHz in frequency, only 37 seconds were spent on the same transponders:



    Thus, 46V + 54H = 100 transponders were locked in 44V + 37H = 81 seconds, which is one transponder more than CrazyScan in BlindScan-2 mode, and 196/81 = 2.4 times faster.



  • I mainly use an IQ monitor. Sometimes CrazyScan. Crazy scan does not include the possibility of spectrum calibration, so it does not compensate for fluctuations in noise levels, so it is less clear and you can only see large differences in signal levels. IQmonitor, thanks to calibration, displays a balanced basic noise level and real "peaks", transponders in the spectrum.
    Big + is the HR spectrum and other features :73: that CrazyScan does not have.:125:


    The IQ scan is without the use of other options to make it an objective comparison with CS.

    Geoposition: 48,71N, 21,92E. Promax Ranger Neo 2, TBS5925 :73: , TBS6983, TBS6903, TBS6903x, TBS6903x V2, TBS6522, TBS5520SE, TBS5927, TBS5590, Prof7301, PF 250cm, ADE antenna 370cm. Full band LNBs: S, L, C: NJS8487S PLL , NJS8488S PLL, X PLL, Ku NJR2842S PLL, Bullseye 10kHz PLL, full Ka band PLL, and other iron for DX reception, 53W - 98E. :68:

    • Offizieller Beitrag

    The speed of blind scanning was compared using the example of the vertical polarization of the Hot Bird 13 ° E satellite

    Since the only blind search parameter that can be set in CrazyScan is frequency step, it was set to 1000kHz.

    This is the minimum value for CrazyScan, which simply does not work at lower step values.

    For IQmonitor Pro, the same frequency step was set to dF = 1000 kHz and a blind scan was performed in high resolution (HR) mode.


    Сравнивалась скорость слепого сканирования на примере вертикальной поляризации спутника Hot Bird 13°E

    Поскольку единственным параметром слепого поиска, который можно установить в CrazyScan, есть шаг по частоте, он был установлен в 1000кГц.

    Это минимальное значение для CrazyScan, который при меньших значениях шага просто не работает.

    Для IQmonitor Pro был установлен такой же шаг по частоте dF=1000кГц и выполнено слепое сканирование в режиме высокого разрешения (HR).

    As you can see from the screenshot, a blind scan was completed in 25 seconds, all 41 transponders operating in vertical polarization were found.

    For CrazyScan, before blind search, it is necessary to register the RF spectrum, which was successfully done in 63 seconds.


    Как видно из скриншота, слепое сканирование выполнено за 25 секунд, найдено все действующие в вертикальной поляризации 41 транспондер.

    Для CrazyScan перед слепым поиском необходимо зарегистрировать RF спектр, что и было успешно сделано за 63 секунды

    After that, an ordinary blind search was launched.


    После этого был запущен обыкновенный слепой поиск

    The result shocked me! Out of 41 transponders, only 18 were found in 1267 seconds!

    Moreover, no high-speed transponders were found with peak amplitudes in the spectrum up to 18 dB. Such transponders have always been locked without any problems... True, dear femi wrote that there are problems with the lock of many transponders:


    Результат меня просто шокировал ! Из 41 транспондера за 1267 секунд было найдено всего 18 !

    Причём не найдены высокоскоростные транспондеры с амплитудой пиков на спектре до 18дБ. Такие транспондеры всегда лочились без всяких проблем... Правда, уважаемый femi писал, что есть проблемы с локом многих транспондеров:

    Trying to solve this problem femi, which hooked me, since the "specialists" diagnosed the TBS 6925 malfunction, but IQmonitor found and locked ALL transponders using this card!, I spent a lot of time, on the CrazyCat page and found a mention that, after version 1.2.3.1397, there were problems with the lock of DVB S2 transponders, and on the basis of my own experiments I came to the conclusion that the problem is not in the card, but in the StreamReader.

    Just in case, I repeated the scan in RF mode - all 41 transponders were found and locked in 31 seconds:


    Пытаясь решить эту проблему femi, которая зацепила меня, так как "специалисты" поставили диагноз - неисправность TBS 6925, но IQmonitor находил и лочил ВСЕ транспондеры с помощью этой карты !, я потратил море времени, на странице CrazyCat`а нашёл упоминание о том, что, после версии 1.2.3.1397 возникли проблемы с локом DVB S2 транспондеров, и на основе собственных экспериментов пришёл к выводу, что проблема не в карте, а в StreamReader`е.

    На всякий случай я повторил сканирование в режиме RF - все 41 транспондер были найдены и залочены за 31 секунду:

    Then I tried to increase the frequency step for CrazyScan to 3 MHz to reduce the blind search time and received 38 transponders in 324 seconds


    Тогда я попробовал для уменьшения времени слепого поиска увеличить шаг по частоте для CrazyScan до 3МГц и получил за 324 сек 38 транспондеров


    Then CrazyScan was switched to the extra fast search mode BlindScan-2, which found all 41 transponders in 43 seconds, but only 39 of them were locked.


    Затем CrazyScan был переведен в режим экстра быстрого поиска BlindScan-2, который за 43 сек нашёл все 41 транспондер, но залочено было только 39 из них

    To speed up the scanning process, the frequency step was increased to 6 MHz, the RF spectrum was recorded in 14 seconds, according to which 39 out of 41 transponders were found and locked in 144 seconds:


    Для ускорения процесса сканирования шаг по частоте был увеличен до 6МГц, зарегистрирован за 14 сек RF спектр, по которому за 144сек было найдено и залочено 39 транспондеров из 41:


    Then CrazyScan was switched to the extra fast search mode BlindScan-2, which found all 41 transponders in 48 seconds, but only 39 of them were locked.


    Затем CrazyScan был переведен в режим экстра быстрого поиска BlindScan-2, который за 48 сек нашёл все 41 транспондер, но залочено было только 39 из них

    Please note that with increasing the frequency step, the normal scan time decreased by 56%, while in the BlindScan-2 quick search mode, on the contrary, it increased by 12%!

    For comparison: IQmonitor Pro in RF mode with a frequency step of 6 MHz created a spectrum in 12 seconds (17% faster than CrazyScan), and a regular blind search in 28 seconds (5 times faster than a regular CrazyScan scan, and 1.7 times faster than BlindScan-2's extra fast search mode)

    At the same time, not 39, but all 41 transponders are locked (5% more)


    Обратите внимание, что при увеличении шага по частоте время обычного сканирования уменьшилось на 56%, а в режиме быстрого поиска BlindScan-2 наоборот, увеличилось на 12% !

    Для сравнения: IQmonitor Pro в режиме RF с шагом по частоте 6МГц создал спектр за 12 сек (на 17% быстрее CrazyScan), а обычный слепой поиск осуществил за 28 сек ( в 5 раз быстрее, чем обычный скан CrazyScan, и в 1.7 раза быстрее, чем режим экстра быстрого поиска BlindScan-2)

    При этом залочено не 39, а все 41 транспондер ( на 5% больше)

    Now let's compare the fastest CrazyScan scan option 48 + 14 = 62 sec or 1.59 sec per one locked transponder with the fastest direct HR scan result (without preliminary RF spectrum acquisition) IQmonitor Pro - 23 sec (2.7 times faster) or 0.56 sec per one locked transponder (2.8 times faster for one locked transponder)


    Теперь сравним наиболее быстрый вариант сканирования CrazyScan 48+14=62сек или 1.59 сек на один залоченный транспондер с наиболее быстрым результатом прямого HR сканирования (без предварительного получения RF спектра) IQmonitor Pro - 23 сек (в 2.7 раза быстрее) или 0.56 сек на один залоченный транспондер (в 2.8 раза быстрее для одного залоченного транспондера)



    Haven't you downloaded IQmonitor Pro on this site yet?

    Вы ещё не скачали IQmonitor Pro на этом сайте ? :101:



    • Offizieller Beitrag

    Comparison of IQmonitor Pro 1.0.2.0 and CrazyScan with the new StreamReader 1.2.4.120


    Testing was carried out at 13 ° E and 90 ° E with 1 and 6 MHz frequency steps.

    At 1 MHz steps, when CrazyScan first started when trying to start BlindScan, a crash occurred and an informational sign "BlindScan Failed" popped up, and while working in BlindScan-2 mode, a system crash occurred with access to the "blue screen of death" with the need to reboot.

    This is where the testing ended.


    For CrazyScan:

    in 1654 seconds 28 transponders were locked in BlindScan mode;

    in 274 seconds, 28 transponders were locked in BlindScan-2 mode.




    For 90 ° E at a frequency step of 1 MHz, the best results are achieved for IQmonitor Pro 1.0.2.0:

    in 654 seconds, 29 transponders were locked.




    For 13 ° E at a frequency step of 1 MHz, the best results are achieved for IQmonitor Pro 1.0.2.0:

    42 transponders were locked in 25 seconds.




    For CrazyScan:

    17 transponders were locked in 1357 seconds in BlindScan mode;

    41 transponders were locked in 117 seconds in BlindScan-2 mode.




    Thus, for PCI cards without the use (support) of the BlindScan-2 function, the IQmonitor Pro program works 2.5 times or more than the CrazyScan program and locks more transponders. :73:

    In BlindScan-2 mode, CrazyScan 1.0.2.168 with StreamReader 1.2.4.120 can crash up to system crash :75:

  • CrazyScan forever

    What's here perfect?

    Wer nicht die Antennengröße und den ungefähren Standort angibt, postet sinnlos, sofern es um eine Signalerfassung geht.

    If you don't specify the antenna size and the approximate location, posting is useless if it's about signal acquisition.

  • Liegt es vielleicht an mangelden Kenntnissen?

    Kannst ja mal Vergleiche hier posten.


    Is it perhaps due to a lack of knowledge?

    You can post comparisons here.

    Wer nicht die Antennengröße und den ungefähren Standort angibt, postet sinnlos, sofern es um eine Signalerfassung geht.

    If you don't specify the antenna size and the approximate location, posting is useless if it's about signal acquisition.

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