From Andrew I have some parts which will not be used by me. Maybe somebody needs them or have ideas what to do with them? Please advice.
Hi Rima
I would keep all of these parts. They are all VERY expensive commercial (not residential) grade products.
Your suspicion is correct. This Andrew 4.6 m was used for both transmit and receive at the same time. i will attempt to explain what some of the parts do.
item in pic 365,383 is an isolator. federal law in north america (and in eurtope also) requires users that transmit to satellites to monitor the transmitter frequency very closely to prevent interference for other channels. this devices allows the high powered output of the transmitter to be measured by a low powered frequency counter.
item in pic 375 is a ultra high stability lna. most uhs lnas use an external reference local oscillator instead of the one bulit into the lna. the top "connector is for the injected l.o. signal and power and alarms. and the bottom "N" style connector is the lna output.
item in 392 is a block converter that converts the c or ku band rx signal down to the l-band signal used by receivers. lnb's have the block converter in the same physical unit. same block converter just an external version. this is used with the lna to make up an lnb.
item in pic381 is flexible waveguide to connect to the antenna since the antenna can move it has to be flexible. this flexible stuff is very low signal loss and able to handle high power from the transmitter. (just like we use flexible rg-6 cable to connect to our smaller dishes for receive only)
cheers,
kevin
