Circuit for monitoring RF compression with a VU meter
¿ªÔÆÌåÓýBeen reading QEX almost from the beginning and have enjoyed all my issues. I also have a fairly nice technical library. I have a question which I've never seen an article on and I wonder if some of you that are way above my pay grade, might have seen a reference somewhere else, or might know how to design it.I have a nice Kenwood TS-590-SG plus 500 watt? SS amplifier, which I like to engage the Kenwood's digital audio compression from time to time, for SSB operations. I have the compression set per the manual recommendations, but I'm never quite sure it's set so as to give good compression, but not introduce objectionable distortion. I also forget from time to time to turn the compression back on after I've been on FT8, etc. An outboard? visual indicator would be helpful. My query: I have a very good quality VU meter. I would love to find and build a circuit and a way to calibrate it for the desired compression after demodulating an RF sample, of my signals. Has there been such an animal in our world? I realize a good scope is the best monitor like my Tek 465 or 2246, but I don't want that in my set up because of the physical size. The Kenwood panel meter gives some indication but the resolution falls a little short. I would prefer to calibrate a larger panel meter for day to day operating. Thank you for your attention. Any assistance or comments will be appreciated. Ray, W4BYG -- "If you want to build a strong house, I'll give you my engineer's number. If you want to build a strong life, I'll introduce you to my carpenter." Lebron and Heather Lackey |
Ray, W4BYG