I am looking to combine two different antennas. The first antenna is a 800 mhz yagi that I am using LMR-400 coax and the second is a 450 mhz omni that I am using rg6 coax. I was wondering if the make any type of diplexer that would combine both antennas? I am using a homepatrol scanner……
Thanks in advance
Tom
You could also look into a custom diplexer from TinLee Electronics. Very good company and easy to work with.
Tin Lee Electronics :: Diplex Filters
I use their Model LH7X 550/650
LH7 series with bandwidth of 0-1000 MHz(be sure to specify 1000 MHz bandwidth as there are other choices)
X is for the outdoor model
Lo bandpass port is 0 to 550 MHZ
Hi bandpass port is 650 to 1000 MHZ
I specified F connectors, but you also can get BNC.
The 550 and 650 are the low pass and Hi pass cutoff frequencies (-3db) that you can custom specify. These two frequencies have to be at least 100 MHz apart I believe. Essentially you get nothing between the two cutoff frequencies, 550 & 650 in this case, so you have to be sure you don't want to hear anything in that range. I specified my cutoff frequencies to be sure I could get everything below 470 MHz with less than 0.5 dB loss and everything above 750 MHz with less than .8 dB loss. . There is some loss through the diplexer.
Dave
