[amsat-bb] Help installing preamps?

Michael Wolthuis wolthui3 at msu.edu
Wed May 9 14:59:43 PDT 2007


Well, now that it is summer in MI I finally am installing a full new  
satellite setup, but the preamps have always confused me and I am  
looking for help to get it right once and for all.

All the latest conversation shows I should get ARR or SSB preamps.   
My question is two-fold:
1) Which models of each for UHF/VHF? (do I need the mast mount type  
so I can put them outside, or can I put them inside a small  
weatherproof enclosure)?

More importantly:
2)I am confused by Bias T's, Power Injectors, vs just running 12volts  
of a power supply up to the small tripod and connecting it to the  
preamps.

 From what I can tell I need preamps that sense transmit and receive  
since I will be likely transmitting and receiving on such things as  
PCSAT on the same freq.  So it needs to pick that up remotely on the  
coax?  So, with that said I would imagine that is the RF Switched  
version of the ARR preamps.  Then, I am just down to how do I power  
them?  It seems to me that putting both the UHF and VHF preamp in a  
waterproof enclosure and then running 12volt power to them makes  
sense, but if I could power them via Coax that would be easier to do  
in the setup.

The radio is a TS-2000x if that helps.

I am sorry for the n00b questions, but I really want to get this  
right.  I have bought the some AMSAT books also to try and help me  
understand the preamp setup.

Thanks,
Mike
kb8zgl



More information about the AMSAT-BB mailing list