Ihr Warenkorb ist leer
Ihr Warenkorb ist leergiuseppe l.
Bewertet in Italien am 21. Januar 2025
Un favore
Wildfire
Bewertet in Großbritannien am 3. Dezember 2023
...but one of the connecting leads only fitted with the "wrong" polarity. You face either supply or signal lead the wrong way around. No problem for testing - simply connect supply or signal to the wrong coloured wires. I will be sleeving the cable with opposite colours shrink. Just that it's meant extra work on my part.The other point is that it draws a fair amount of current so unless its use is very intermittent a PP3 battery won't last long. When casing it up I may add a transformer able to deliver 8 to 9 volts at 300mA just to make life easier (reluctant to use a switched wall-wart supply for a device like this but that may work).I tested it with 80 MHz, 50MHz and 32MHz crystal oscillator modules, and a 4.096MHz crystal Colpitts circuit and it was as good as dead on, room temperature at 19C, so it's accurate enough for my needs and probably for anyone tuning radio circuits. I have no means of testing above 80MHz.The plus side is it's easy to use - "set" buttons are easy (leave a second or so for the program to settle down); and I particularly like the ability to set the display brightness. Gating time is easy to adjust if need be. There are youtube videos for anyone needing more information.Altogether a good deal. As for durability, I have yet to find out!
Umberto Marcucci
Bewertet in Italien am 19. Juni 2023
Il frequenzimetro lo conosco bene. Funziona benissimo. Per avere una misura molto precisa occorre calibrare la frequenza del quarzo della base dei tempi. lo scostamente è di circa 30-35 hertz (su 1 MHz misurato). I cinesi non effettuano la calibrazione. Altra cosa, il prezzo è leggermente alto per questo prodotto.
Client3@mazon
Bewertet in Italien am 1. März 2023
Vale più del prezzo pagato, per hobbisti ma direi abbastanza preciso, paragonato a due frequenzimetri "veri" non si discosta dalle letture, dopo averlo inscatolato dentro una cassetta da derivazione ed alimentato da una pila da 9 volt, lo uso come strumento isolato dalla rete con le radio che restauro per hobby e mi trovo benissimo, prodotto economico ma consigliabile.
Slump
Bewertet in Frankreich am 7. Januar 2022
Sensible; reglable; lumineuxFonctionne a merveille sur une galaxy saturn
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