CalebATC
Member
I have always been very cautious with this, but have always been wandering if it is OK. So, in reference to not blowing out all my scanners and other transceivers, what is a good level, if at all?
Now, I have my homebrew airband and my military discone mounted on a pole near each other. Obviously, I would never be transmitting on the airband, although I use my VXA-220 which is made for handheld while flying. So that has no problem. But, 20' away is my 5 element 2 meter collinear antenna, which is about 10' higher than the discones, it hangs from a tree. I also use the military discone for 70cm whenever, although I rarely do, both the VXA-220 and the FT-60 do 5 watts on both bands. My FT-1900 (2m collinear) pumps out 55 watts. And, my inverted "V" is about 10' laterally away from the discones and the collinear, which I use on 10 meters, and getting ready to start using on 40 meters. The TS-520SE pumps out 125 watts at the best. The PRO-163 which is home to the military discone or the UHF milsat antenna has a 25db preamp also.
But, here is the catch- all my coax run through the same hole outside the house. They are either using RG-6 or RG-8X. I use them to scan at the same time, but never use them to transmit while all scanning.
So, I have always unplugged the preamp for 2 meters. But, should I keep doing this with the cables running together and all the RF in the room? Should I unplug all my other scanners even if they are unplugged from the preamp (all cables run together to top shelf, except HF). I usually use the HF and the FT-1900 at the same time, but never have problems. Should I stop doing that? With all my band variations, should I even worry about it? Each scanner/radio covers a different band. Never use the PRO-163 for VHF etc,.
Thanks for the help
Now, I have my homebrew airband and my military discone mounted on a pole near each other. Obviously, I would never be transmitting on the airband, although I use my VXA-220 which is made for handheld while flying. So that has no problem. But, 20' away is my 5 element 2 meter collinear antenna, which is about 10' higher than the discones, it hangs from a tree. I also use the military discone for 70cm whenever, although I rarely do, both the VXA-220 and the FT-60 do 5 watts on both bands. My FT-1900 (2m collinear) pumps out 55 watts. And, my inverted "V" is about 10' laterally away from the discones and the collinear, which I use on 10 meters, and getting ready to start using on 40 meters. The TS-520SE pumps out 125 watts at the best. The PRO-163 which is home to the military discone or the UHF milsat antenna has a 25db preamp also.
But, here is the catch- all my coax run through the same hole outside the house. They are either using RG-6 or RG-8X. I use them to scan at the same time, but never use them to transmit while all scanning.
So, I have always unplugged the preamp for 2 meters. But, should I keep doing this with the cables running together and all the RF in the room? Should I unplug all my other scanners even if they are unplugged from the preamp (all cables run together to top shelf, except HF). I usually use the HF and the FT-1900 at the same time, but never have problems. Should I stop doing that? With all my band variations, should I even worry about it? Each scanner/radio covers a different band. Never use the PRO-163 for VHF etc,.
Thanks for the help
