RE: [Repeater-Builder] Micor 800MHz Base Stations?
--- Kris Kirby <[EMAIL PROTECTED]> wrote: > On Thu, 14 Dec 2006, Mike Perryman wrote: > > I have no idea about a tube version... but I have > a Micor 75W solid > > state PA for 800 if you are interested lemme > know.. > > Not really. What I'm thinking is that a tube-type PA > would have less > noise generated as a result of amplification which > would mean less heat > expended in the duplexers and harmonic filters. > > -- > Kris Kirby > <[EMAIL PROTECTED]> > Even if a solid state TX at 100 watts only had the spurious and harmonics down 20dB, that would only be 1 watt of additional heat generated. Most transmitters have such things reduced by at least 60dB, which would make the additional heat generated at something less than a milliwatt, hardly worth mentioning. The heat comes from the loss of the device. A 1 dB loss will introduce about 20 watts of heat from a 100 watt TX. Joe Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com
RE: [Repeater-Builder] Micor 800MHz Base Stations?
Yes they did, I think they all had tube PA's at the start, well except Quintron. Paul -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Mike Perryman Sent: Thursday, December 14, 2006 4:04 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Micor 800MHz Base Stations? Kris, I have no idea about a tube version... but I have a Micor 75W solid state PA for 800 if you are interested lemme know.. 73 Mike Perryman www.k5jmp.us -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Kris Kirby Sent: Thursday, December 14, 2006 4:48 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Micor 800MHz Base Stations? Did Motorola ever make a Micor or earlier vintage base station with a tube PA on 800MHz? -- Kris Kirby <[EMAIL PROTECTED]> Yahoo! Groups Links Yahoo! Groups Links
RE: [Repeater-Builder] Micor 800MHz Base Stations?
On Thu, 14 Dec 2006, Mike Perryman wrote: > I have no idea about a tube version... but I have a Micor 75W solid > state PA for 800 if you are interested lemme know.. Not really. What I'm thinking is that a tube-type PA would have less noise generated as a result of amplification which would mean less heat expended in the duplexers and harmonic filters. -- Kris Kirby <[EMAIL PROTECTED]>
RE: [Repeater-Builder] Micor 800MHz Base Stations?
Kris, I have no idea about a tube version... but I have a Micor 75W solid state PA for 800 if you are interested lemme know.. 73 Mike Perryman www.k5jmp.us -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Kris Kirby Sent: Thursday, December 14, 2006 4:48 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Micor 800MHz Base Stations? Did Motorola ever make a Micor or earlier vintage base station with a tube PA on 800MHz? -- Kris Kirby <[EMAIL PROTECTED]> Yahoo! Groups Links
