UHF + UHF Antenna Diplexer

[Rodney Josey]

If I've posted to the wrong NG for this then please advise...

Does anyone know if there is such a thing as a 'diplexer' for combining two UHF antenna's each
pointing in different directions into a single cable prior to being input into an antenna amplifier
?

I have need of 2 x UHF antennas - main one facing north for 4 free-to-air channels & a secondary one
facing to the south for a separate single free-to-air channel. Now I can get a 'diplexer' for
combining a VHF antenna plus a UHF antenna into a single cable which on taking one apart shows that
the VHF side stripline resistive load is different than that used on the UHF side - so NO GO for
using such a 'diplexer' when I need to combine 2 x UHF cables together into the one cable feeding
into the input of an external aerial amplifier.

Any ideas on what I could do to get this ?

Oz-Rod

 

[Rodney Josey]

On 18 Jan 2005 03:05:42 -0800, "Andrew VK3BFA" <ablight@alphalink.com.au> wrote:

Rodney Josey wrote:
If I've posted to the wrong NG for this then please advise...

Does anyone know if there is such a thing as a 'diplexer' for
combining two UHF antenna's each
pointing in different directions into a single cable prior to being
input into an antenna amplifier
?

I have need of 2 x UHF antennas - main one facing north for 4
free-to-air channels & a secondary one
facing to the south for a separate single free-to-air channel. Now
I can get a 'diplexer' for
combining a VHF antenna plus a UHF antenna into a single cable which
on taking one apart shows that
the VHF side stripline resistive load is different than that used on
the UHF side - so NO GO for
using such a 'diplexer' when I need to combine 2 x UHF cables
together into the one cable feeding
into the input of an external aerial amplifier.

Any ideas on what I could do to get this ?

Oz-Rod



Yep - off the shelf stuff - try Alvin or Hills (assuming you are in OZ)
73 de VK3BFA Andrew

Thanks Andrew. Am considering using a UHF splitter in reverse - hopefully the 3db loss will be
compensated for in the masthead amp mounted a few feet below the two antennas.

TIA.

Oz-Rod

 

[Andrew VK3BFA]

Rodney Josey wrote:

If I've posted to the wrong NG for this then please advise...

Does anyone know if there is such a thing as a 'diplexer' for
combining two UHF antenna's each
pointing in different directions into a single cable prior to being
input into an antenna amplifier
?

I have need of 2 x UHF antennas - main one facing north for 4
free-to-air channels & a secondary one
facing to the south for a separate single free-to-air channel. Now
I can get a 'diplexer' for
combining a VHF antenna plus a UHF antenna into a single cable which
on taking one apart shows that
the VHF side stripline resistive load is different than that used on
the UHF side - so NO GO for
using such a 'diplexer' when I need to combine 2 x UHF cables
together into the one cable feeding
into the input of an external aerial amplifier.

Any ideas on what I could do to get this ?

Oz-Rod

Yep - off the shelf stuff - try Alvin or Hills (assuming you are in OZ)
73 de VK3BFA Andrew