This is realty two projects in one, A RF volt meter that squares the voltage, divides by 50 and displays it as Watts. The second is something that has been around for a while called a CanTenna. They can be built in the quart or gallon size. I guess you could build it in a five gallon paint bucket. I suggest for a higher power unit more individual resistors be used so long as the total parallel resistors equal 50 ohms. You could also put the quart unit in a bucket of Ice water but there is a limit to how fast the heat can get away from the resistors.
As for the volt meter I suggest the D-1, C-1, R1 & R2 could be mounted in a piece of metal tube with a coax connector or on the RF end and some of coax with another connector into the meter box. A tee connector would allow the meter to work in an antenna line, between transceiver and power amp or where ever else. Also by changing the ratio of r,1 & R-2 the range could be changed. It might be fun to build! John [email protected] K5VGM WI2XLJIn a message dated 4/12/2019 11:39:29 AM Central Standard Time, [email protected] writes: I may tackle the WATTMETER/DUMMY mentioned last night, NOV QST. Looks easy, includes a display, and would be useful…150 or even 200 watts for a short time… and about $20 for the parts. I thought last night’s meeting was very good…. we have some good guys running BVARC! David K5HEC On Apr 12, 2019, at 9:12 AM, Roy Storey via BVARC <[email protected]> wrote: Here is another project for those (and any one else) who attended the club meeting last night. Click or copy and paste this link into your browser. This uses the Uno board but it has the same pinout as the Nano. https://create.arduino.cc/projecthub/SBR/working-with-two-leds-d95b11?utm_campaign=new_projects&utm_content=2&utm_medium=email&utm_source=hackster&utm_term=project_name Roy W5TKZ -- 73 _______________________________________________ BVARC mailing list Radio,Radio,Radio We are a radio Club! Talk it up! On the air about every event, every meeting, every net, every time, talk about the club, ham fests, events and people. [email protected] http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org Message delivered to [email protected] _______________________________________________ BVARC mailing list Radio,Radio,Radio We are a radio Club! Talk it up! On the air about every event, every meeting, every net, every time, talk about the club, ham fests, events and people. [email protected] http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org Message delivered to [email protected]
_______________________________________________ BVARC mailing list Radio,Radio,Radio We are a radio Club! Talk it up! On the air about every event, every meeting, every net, every time, talk about the club, ham fests, events and people. [email protected] http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org Message delivered to [email protected]
