--- In [email protected], "Paul" <[EMAIL PROTECTED]> wrote:
"...I have a motorola trisolector part number tld-8994b. a friend once
told me that this could be used as a duplexer ,in fact it is a
duplexer from a mobile radio telephone does any one have any
information about it ?"
__________________________________________________________
It is a duplexer of sorts. It is from the first generation Motorola
VHF Pulsar car telephone [the one that resembles a Mocom 70]
The trioselector serves several purposes including receiver front end
selectivity, transmitter harmonic filtering and duplexing both to a
common antenna. Here are the specs:
Duplex spacing: 4.5 MHz minimum
Rcvr Atten at Ft: 70 dB minimum
Rcvr insertion loss: 5 dB max
Xmtr insertion loss: 2 dB max
Xmtr VSWR: 1.2:1 max
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