Hello all, OK, after looking on the internet and doing some reading I decided to use the low pass filter values in the ARRL RF Amplifier Classics book I've got (not the greatest book but they do have
Mike, The biggest worry is generally current rating, not voltage rating. A secondary worry is impedance of leads if you intend to reject very high frequency harmonics. The caps must of course have t
Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>
Date: Tue, 1 Aug 2006 21:41:05 +0200 (CEST)
rating. A secondary worry is impedance of leads if you intend to reject very high frequency harmonics. The caps must of course have to have enough voltage, and the voltage can be higher than the inpu
Same thing, two different ways of saying it, and very true! About time someone wrote an article on the design of a lowpass filter for a single band capable of handling 1500 watts continuously, 50 ohm
A friend has one of those Japanese rigs that emits white noise all over. We fired up my spectrum analyzer and found it did produce a lot of crap. No simple cure, and he wanted to use it for Field Day
Talking of beer coolers, this one should stimulate any real amp builder. http://www.asciimation.co.nz/beer/ Steve _______________________________________________ Amps mailing list Amps@contesting.co
Mike, Jim Tonne has some software just for this. There's another ham on the net who has a low pass filter he designed with this that is for 160 to 6 meters if I recall. The website has the complete d
About lowpass filters for a 1.5 kW transmitter: It might be advisable, IF you have the potential for TVI, to make a lowpass (or bandpass) filter for the transmitter and then follow it another filter
Jim, If you remember, there was another ham on the net who did build one like this, and used your software to design it. It was a low pass filter for 160 to 6 meters. At the bottom of the webpage, he
Jim, Yes, that's the one I was thinking of, I just couldn't remember where I seen it at! I think the design is a good one, and it's sure well made. For everyone, the cutoff starts after 6 meters, so
In the 50's and 60's or earlier that might have been good advice. Not any longer though. Anyone who has ever looked at a modern Ham radio (i.e. a real amateur transceiver like a Y K I) on a spectrum