RE: [Repeater-Builder] Antenna separation article

> Agreed, but my main point was that newer receivers even > though wide band may be as good as older narrow band > receivers. No question that additional filtering makes them > even better. Do you have a particular wide-band receiver in mind? --- Jeff

RE: [Repeater-Builder] Antenna separation article

_ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Jeff DePolo > This leads to another subject, duplexer isolation. Lots of > people are under > the impression that if a duplexer that is adequate with 70 db > of isolation > and provides no desense the

RE: [Repeater-Builder] Antenna separation article

> As another note on the tx-rx isolation curves, a synthesized > transmitter is > not always worse than a crystal controlled transmitter as far > as broad band > noise output. If I remember right There are somewhere some > curves showing > that a certain model GE synthesized transmitter has less

RE: [Repeater-Builder] Antenna separation article

Hi Mike, That is a nice article. Someone else suggested that the reference to "old curves" should have been to the older tx-rx isolation curves that were published by GE. Those are also valuable as a starting point in figuring total isolation needed. I agree that those are very tx-rx type depende

RE: [Repeater-Builder] Antenna separation article

> I notice in the below referenced article on antenna > separation that it is stated that the "graphs are misleading > and no where near accurate for modern day solid state equipment". > That is not correct as the graphs for antenna isolation show > approximately how much isolation can be expect

Re: [Repeater-Builder] Antenna separation article

Gary Schafer wrote: * I notice in the below referenced article on antenna separation that it is stated that the "graphs are misleading and no where near accurate for modern day solid state equipment".* http://www.repeater-builder.com/antenna/separation.html

Re: [Repeater-Builder] Antenna separation article

At 2/5/2007 19:51, you wrote: >As another note in the article it suggested using a spectrum analyzer to >tune the receiver s local oscillator chain for lowest noise. While that is >one approach, an easier and probably more accurate way of doing it is to >use a sinadder on the receiver while tu