Folks,
Couple of questions and I was hoping someone had some experience in this area they could share.
First off, I would like to use two (maybe a 3rd) antennas with a single feedline. I see a ton of diplexer's and triplexers out there at a reasonable cost.
The only concern I have is that most have a finite frequency range.
For example, the Diamond MX62m, http://www.diamondantenna.net/mx62m.html, has a frequency range for the two ports of 1.6-56/76-470. This is great for my TX/RX general use - One Antenna for HF and one for vhf/uhf.
But I like to also monitor some of the local state/city agencies on 850+Mhz. How much attenuation can I expect after the 470Mhz? Does anyone have an SA/TG plot of one of these diplexers to see what I'd be looking at?
I really didn't want to go with a triplexer and a 3rd antenna just to RX those 800-900Mhz for RX...
My second question is for outdoor use. Most of the diplexer's and triplexer's are not outdoor rated. I think most are using them off the back of the radio that has a separate HF and VHF/UHF port to combine to a single feedline. I of course want to use it on the antenna side for this use case. What have you done to weather proof these for this use case? I guess a PVC outdoor box by the antenna mast would work; Just wish they had N connectors or so239 connectors instead of the pigtails they have...
Any lessons learned using these would be much appreciated.
Thanks,
-J
Couple of questions and I was hoping someone had some experience in this area they could share.
First off, I would like to use two (maybe a 3rd) antennas with a single feedline. I see a ton of diplexer's and triplexers out there at a reasonable cost.
The only concern I have is that most have a finite frequency range.
For example, the Diamond MX62m, http://www.diamondantenna.net/mx62m.html, has a frequency range for the two ports of 1.6-56/76-470. This is great for my TX/RX general use - One Antenna for HF and one for vhf/uhf.
But I like to also monitor some of the local state/city agencies on 850+Mhz. How much attenuation can I expect after the 470Mhz? Does anyone have an SA/TG plot of one of these diplexers to see what I'd be looking at?
I really didn't want to go with a triplexer and a 3rd antenna just to RX those 800-900Mhz for RX...
My second question is for outdoor use. Most of the diplexer's and triplexer's are not outdoor rated. I think most are using them off the back of the radio that has a separate HF and VHF/UHF port to combine to a single feedline. I of course want to use it on the antenna side for this use case. What have you done to weather proof these for this use case? I guess a PVC outdoor box by the antenna mast would work; Just wish they had N connectors or so239 connectors instead of the pigtails they have...
Any lessons learned using these would be much appreciated.
Thanks,
-J