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Tigergriz
New member
Username: Tigergriz

Post Number: 5
Registered: 11-2020
Posted on Tuesday, August 24, 2021 - 10:00 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

sorry this seems like a dumb question, but I just remove my radio to antenna and antenna to radio switches so i could multy band listen,each radio has a dedacated antenna, and I have searched and I am probably wording it wrong, bottom line, will I hurt my 10 meter radio if I have all 3 radios on when I transmit on 2 meters or 20 meters i have a 2 meter j-pole 18ft away from my 10 meter yagi, and both are 50ft from my random wire antenna, so i can monitor 3 bands at once, but can i transmit with any one of them with the other radios on without hurting them? max wattage 100.
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Charliebrown
Advanced Member
Username: Charliebrown

Post Number: 765
Registered: 10-2002
Posted on Wednesday, August 25, 2021 - 8:55 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

yep you will hurt your radios
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Tech237
Moderator
Username: Tech237

Post Number: 1962
Registered: 4-2004


Posted on Wednesday, March 23, 2022 - 7:16 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Not likely to hurt the other radios as they are on different frequencies.

Now if you have doubts, it is a simple matter to fit a filter in the coax to each radio that blocks all signals above or below a pre-determined frequency. These types of filters are used regularly at field day where not only are multiple radios on different bands in use, but often 2 radios will be used on the same band at the same time - one on CW and the other on voice.

I will dig thru my circuit collection as I am sure I have an article that describes how to makes these filters.
Tech237
N7AUS

God made me an athiest, who are you to question his wisdom?
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Tech833
Moderator
Username: Tech833

Post Number: 2504
Registered: 8-2002
Posted on Monday, December 05, 2022 - 1:48 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

If you have a 10 (or 11) meter radio hooked to a dedicated 10m antenna (like an Antron) 18 feet from a 20m antenna and operate 20m with 100 watts or less, not very likely to harm anything.
Your radio 'Mythbuster' with Copper Electronics since 1998

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