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   Home   Help Search  
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Author Topic: 811/ hx/x Matching to Tx  (Read 1484 times)
VK3SX
Member

Posts: 3




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« on: February 15, 2007, 09:30:57 PM »

Greetings, I have a al811x and have a mis match and High VSWR between my kenwood 2000 and Amp. Is it a simple procedure to ajust the tuning slugs on each band to obtain the best VSWR between TX and Amp. It would appear this has been done prior to it sitting on my shack bench.
Thanks Bob VK3SX
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WK4KW
Member

Posts: 24




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« Reply #1 on: February 16, 2007, 03:09:56 AM »

Bob, Your problem is a common one and has been addressed here previously, a lot. Use the search function. You will find all the information you need.
73, Don
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AD5X
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Posts: 1626




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« Reply #2 on: February 16, 2007, 08:29:12 AM »

My only input tuning experience is with the AL-80B.  The input tuning slugs are easily adjusted for minimum SWR.

Phil - AD5X
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KA5N
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Posts: 4380




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« Reply #3 on: February 16, 2007, 11:03:08 AM »

Usually once tuned the input circuits stay tuned.  If you suddenly have a mismatch and high SWR, something has gone bad.  Check all connectors and interconnecting cables.  Check the input circuits for failures (burned components) and burned switch contacts etc.   If is simply a small SWR problem tuning the coils is simple with a proper tuning tool.  The main problem with SWR is that a high value will cause the transceiver to automatically cut back power.
73 Allen
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K6AER
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Posts: 5743




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« Reply #4 on: February 16, 2007, 05:57:29 PM »

Make sure your TS-2000 antenna tuner is matched to a 50 ohm load before tearing apart your amplifier. The TS-2000 will remember its antenna settings if you have activated the antenna tuner. It could be anywhere from 16-300 ohms.
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