Connecting three antenna's ?

[jcecklund]

wanting to set up dedicatied antenna's for my truck, looking to install gain antenna's for 800 mhz VHF and UHF and need to find a diplexer to do this, can anyone give me some suggestions where to purchase one?
Can't seem to find one on the web?

Don't want an all band antenna.


JC

 

[Tweekerbob]

Try the Diamond MX3000 at http://www.rfparts.com/diamond/Product_Catalog/plexers.html

 

[jcecklund]

This says "Triplexers may be used for combining two/three transceivers to one coax feed line".

I am not looking to combine receivers to one antenna.


I am looking to combine Antenna's to one receiver via a switch

To make this more simple... I want to use an 800 mhz antenna when listening to the 800 mhz band.

when I am listening to the UHF band I want to switch over to using the UHF antenna and so on.


JC

 

[Tweekerbob]

diplexers/triplexers, etc. are bi-directional. It is true they may be used to combine multiple mono-band transceivers to one antenna.

Because of their bi-directionality, the opposite configuration is also possible...connecting three singleband ANTENNAS to one Receiver (or scanner or transceiver).

Diplexer/Triplexers are not switches, just simple filters arranged in a way to make the above possible, without the use of switches.

If you want to manually switch among your antennas, you may do so, but you do not need a diplexer. You simply need a coaxial switch (or antenna switch as they are often called). Most ham stores have several varieties, like Ham Radio Outlet or AES, among many others.


Hope this helps,

Ryan

 

[jcecklund]

Thanks

Thanks Ryan for your imput.

I really appreciate your reponce


JC

 

[JamesO]

I second the triplexer.

I have the Diamond triplexer and I am quite happy with it.

I also use a 800 MHz pre-amp on the high frequency input to the triplexer with a 800 MHz specific antenna.

This may limit some of your monitoring.

You may still want an "all band" anteanna for other purposes as well and have a coax switch as well.

I am not a real discone fan for wideband monitoring, they really have lackluster performance in any specific band.

I have a Monitenna which seems to work fairly well for wideband coverage.

JamesO