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A convenient package of 6 50Ω SMA in-line attenuators. Allows for selecting attenuation from 1db-42dB in 1dB increments. Includes values of 1dB, 2dB, 3dB, 6dB, 10dB and 20dB.
The maximum power is 2W. Attenuator accuracy is / - 0.1dB from DC to 3GHz and / - 0.4dB from DC to 6GHz. Max VSWR is Laser-etched values ensures longevity of labeling.
Tofurind
Reviewed in Germany on January 14, 2025
Ich hab schon so einiges durch: Von billigstem Kram der aus Metallschrott gefertigt wurde bis hin zu high end OEM Equipment. Wer im Bereich bis 5 GHz unterwegs ist, wird hiermit sicherlich glücklich.Ich nutze diese Dämpfungsglieder mit einem VNA und hab daher hohe Anforderungen an Durchgang, Reflektion und Verlusten. Über den gesamten Bereich (DC-5GHz) sind die Charakteristik relativ gerade und sauber. Zum Beispiel verwende ich die 30dB Dämpfer auch gerne als Abschlusswiderstände, weil die genau so gut sind wie meine Amphenols. Die Schraubverbindung ist stabil (keine Wackelkontakte wie oft bei anderen Fittingen). Es ist kein Möchtegern-Gold draufgalvanisiert, welches dann ekelhaft oxidieren würde.Einfach ein ehrliches und dem Preis angemessenen Produkt. Hab damit mein Magazin aufgefüllt direkt, weil man für vergleichbare Qualität namhafter Hersteller auch schnell mal das 5-10 fache bezahlen kann!
Electronics hobbyist
Reviewed in Australia on August 24, 2024
Great little kit for the ham shack, recommended!
AntoMar
Reviewed in Spain on June 20, 2024
Como es habitual, recibido en tiempo garantizado.En cuanto al comentario respecto a los atenuadores, adjunto imágenes con los resultados medidos en el caso del de mayor atenuación (-20dB) que es el que mayor desviación del valor nominal pudiera presentar.Las imágenes corresponden a las calibraciones:1 a 60 MHz130 a 170 MHz400 a 480 MHz10 KHz a 4,4 GHzLas tres primeras medidas arrojan resultados con valores más o menos lineales.Donde más se aprecia una ligera “no linealidad” es en la calibración de 10 KHz a 4,4 GHz donde se puede apreciar que a partir de poco más de unos 2 GHz hay una ligera oscilación en el valor medido.Por supuesto que no son elementos de laboratorio, pero por el precio que tienen son aceptables para trabajos no profesionales.
David Brown
Reviewed in the United States on June 10, 2024
I always place an attenuator in place before connecting my measuring equipment in place. You never know what might happen and you want to ensure you don't damage your equipment.
Jay Alexander
Reviewed in the United States on May 21, 2024
I was impressed with the build. I have not tested the accuracy of the attenuators. For those who use SMA connected devices, this seems to be the perfect solution to add attenuation without clumsy adapters to match to different types. I bought these for my Tiny Spectrum Analyzer.
DAVID A MAIR
Reviewed in the United States on December 4, 2024
These provide 1 to 42dB of attenuation in 1dB steps. Note that they are are limited to 2W power but putting them in-line AFTER something like a 40dB or 30dB, 50 Ohm,100W attenuator allows them to provide 1dB adjustments across a huge range making the combination perfect for adjusting something like the output from a 50W or 100W amateur radio to a range useful as the input for a spectrum analyzer or oscilloscope without damaging it. Note, some suitable combination of these goes AFTER another purchased big, high power attenuator when hooking many radio outputs to a device like a spectrum analyzer. These just provide the ability to use a set that adjusts the final power after a high power attenuator to a good level for the spectrum analyzer and are well worth the investment alongside a large, high power attenuator when using something like a desktop amateur radio with something a tinySA spectrum analyzer.
George J. Francis
Reviewed in the United States on November 12, 2024
Great for RF prototyping and protecting the input to your spectrum analyzer. One end male, other end female for easy "stacking".
woody
Reviewed in the United States on January 30, 2023
We use these for situations where there is too much output power and bi-directional amplifiers cause interference. Make sure you know the type of connections your amp has, some are N-connectors not SMA. Anyways, these work great!
Nick brusco
Reviewed in the United States on May 19, 2022
Measured on my VNA, these provide relatively flat attenuation from 10khz past 9GHz (my VNA's BW limit), not 3G like the listing states. S11 and S22 are also below 20dB over the whole range. Excellent frequency response for such a cheap attenuator! 10dB screenshot attached as an example.
CactusTexas
Reviewed in the United States on September 4, 2021
Playing with low power HF and needed attenuation to reduce 200 mW to lower power. These are perfect and give me a way to try different combos for downward steps. Good quality
mordal johan
Reviewed in France on September 23, 2021
Atténuation de signal pour analyseur de spectre
Claudio Tro
Reviewed in Italy on February 1, 2021
Ho acquistato 2 set di attenuatori al prezzo di 45.95 euro ciascuno, consegna puntuale e valore nominale degli attenuatori come da descrizione. Li ho caratterizzati a 144, 432 e 1296 MHz con VNA calibrato e questi sono i dati che ho ricavato:Precisione sul valore di attenuazione S21: entro +- 0.1 dB per tutti i pezzi tranne i 2 attenuatori a -6 dB (-5.83...-5.89 dB misurati) e 1 attenuatore a -20 dB (-19.84...-19.93 misurati).Return loss S11 e S22: per 144 e 432 MHz sempre migliore di -40 dB (SWR 1.02). A 1.2 GHz sempre migliore di -35 dB (SWR 1.04).Per i miei scopi sono ottimi!
attaboy
Reviewed in the United States on April 1, 2020
Adequate for most non-Hams working on the 2.4Ghz ISM bands which are limited to 30 dBi (1 watt) here in the U.S. It's a handy set to complement my electronic attenuator, and a necessity if you are working with an SA or VNA. These are 50 ohm SMA devices, so it you are working satellite stuff, you may need 75 ohm "F-type" anttenuators. Fairly priced and looks to be nice build quality, I'll give them 5 stars, and update if I find any significant discrepancies. Cheers!
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