https://k3rrr.com/wp-content/uploads/2018/08/K3RRR-new-logo-K3RRR-K3TripleR-1030x464.png00https://k3rrr.com/wp-content/uploads/2018/08/K3RRR-new-logo-K3RRR-K3TripleR-1030x464.png2014-11-07 17:28:022014-11-07 17:28:02cheap frequency counter for amateur radio
I could rig something up for ya – sounds like a fun project! The easiest
thing would be to have it start at some number (say, 500) and have two
hidden buttons. When you push one button, the number scrolls up (so you can
set the starting value before the scene), and when you press the other
button is scrolls down (simulating gun fire and decreasing ammo left) – how
would that be? It could run from a few AA batteries
Hey man. I’m working on an indie film and I’m making big sci-fi guns. I
want one of them to have a digital bullet count. Is there a device that
gives a digital read out of how many times an object passes by it? What
would it be called? and where would I find it?
It does exactly what you’d expect from the name, it ‘counts’ a frequency
and displays it on the screen. Frequency is actually the times a signal
rises and falls in a square, triangle or square wave. 10mHz means that the
signal goes from high (5v) to low (0v) about 10.000.000 times a second.
Because the enclosure was $3 and the goal of the project was minimum cost,
and cheaper aluminum cases are not available, and fancy ones are not worth
their cost for this project. If you find a better source for enclosures at
minimum cost, let me know! I would be happy to buy some.
Well done, Scott. Prayers and encouragement for your and your family.
You’ve built up a very nice microcontroller capability. You’ll find many
test instrument ideas out on the web (you probably already have). Also
there are some very cheap AD9850 DDS boards on eBay that you can program
using SPI from a microcontroller. Please keep building and sharing … and
Thanks! Coop, AA1WW
Nice counter, but no info on acquiring such a counter. Absolutely
worthless for duplicating the project, not cool at all. Never mentioned
really any description of the counter parts. Very thoughtless. Generates
interest but lousy on info.
I could rig something up for ya – sounds like a fun project! The easiest
thing would be to have it start at some number (say, 500) and have two
hidden buttons. When you push one button, the number scrolls up (so you can
set the starting value before the scene), and when you press the other
button is scrolls down (simulating gun fire and decreasing ammo left) – how
would that be? It could run from a few AA batteries
Hey man. I’m working on an indie film and I’m making big sci-fi guns. I
want one of them to have a digital bullet count. Is there a device that
gives a digital read out of how many times an object passes by it? What
would it be called? and where would I find it?
Very neat wish I had something like that.
:D. I’m needing a frequency counter that can go up to 66MHz, my Atmel MCU
max speed.
yay I didn’t have to watch a commercial… oh thanks open source…
surprised you didn’t know that Richard… adblock plus ftw!
Well done, nice work, Take care. W4GSM
Awesome job! Though it is more than $10, probably about $15 or so due to
the box, the segment display and the PCB parts if all bought new.
It does exactly what you’d expect from the name, it ‘counts’ a frequency
and displays it on the screen. Frequency is actually the times a signal
rises and falls in a square, triangle or square wave. 10mHz means that the
signal goes from high (5v) to low (0v) about 10.000.000 times a second.
Download adblock
hey where you get the freq counter at doe they have a six digit freq
counter availble
@igrewold It measures frequency.
Because the enclosure was $3 and the goal of the project was minimum cost,
and cheaper aluminum cases are not available, and fancy ones are not worth
their cost for this project. If you find a better source for enclosures at
minimum cost, let me know! I would be happy to buy some.
excuse my ignorance but what does frequency counter mean? And what does it
do?
Well done, Scott. Prayers and encouragement for your and your family.
You’ve built up a very nice microcontroller capability. You’ll find many
test instrument ideas out on the web (you probably already have). Also
there are some very cheap AD9850 DDS boards on eBay that you can program
using SPI from a microcontroller. Please keep building and sharing … and
Thanks! Coop, AA1WW
nice job.
very cool dude.. n0amy colorado springs co.
Nibblers are handy for cutting holes like that.
Nice counter i am maybe Going tot build it soon
Nice counter, but no info on acquiring such a counter. Absolutely
worthless for duplicating the project, not cool at all. Never mentioned
really any description of the counter parts. Very thoughtless. Generates
interest but lousy on info.
Doe syour chematic has input protection (overvoltage protection etc)?
For example would it be possible to meausure RF transmitter frequency?
cheap frequency counter for amateur radio
could use it to check household frequency or off a gas powered electric
generator?
nice job you are definitely going places in life ,… i wish you nothing
but the best !!!!
doug KD2FCH
Get yourself a RCA to BNC adapter then you can use your probe.
Where I could found a really cheap homebrew ssb 40 meters qrp transceiver?
Kit or a schematic but with easy to find materials?