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Kenwood AM




 
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Author Topic: Kenwood AM  (Read 508 times)
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k6ddx
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« on: March 10, 2019, 01:40:25 PM »

I suspect this has been addressed before, but has anyone devised a simple modification to the TS-520 or the TS-820S to make it work on AM?

I suspect the kicker is my use of the word 'simple'.

Those are terrific radios, reliable and great performers, still in wide use today and available at low prices.
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KK4YY
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Golí na vydumku khitra


« Reply #1 on: March 10, 2019, 06:57:06 PM »

Simple? Okay, get out your screwdriver...

On the TS-520, adjust the carrier balance pot, VR3 on the Generator unit. On the TS-820, it's VR5 on the IF unit. This will produce single sideband AM.

This is as simple as it gets, but I don't actually recommend it. If you want to do the AM mode justice with those rigs, you'll need to move past 'simple'.

Don
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Fate does not protect its worshipers any more than its deniers.
k6ddx
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« Reply #2 on: April 01, 2019, 08:16:20 PM »

I thought so.  Disabling the balanced modulator (or at least preventing carrier removal) and bypassing the sideband filter is what it would take.  However, Pandora lurks and I suspect some of the rig's performance would be compromised in important ways.

Bob
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