Larry, Yes, it does have a circulator. In fact, the major difference between the 2W and the 12W PAs is in the antenna network itself- where the circulator is located. The 12W network has an 18k resistor and a paralleled thermistor in the reflected power sensing line, that is not used in the 2W version. Unfortunately, neither the part number nor the characteristics of the thermistor are broken out in the parts list, since the antenna network was designed to be replaced as a unit.
73, Eric Lemmon WB6FLY "[EMAIL PROTECTED]" wrote: > > I also have one of those 2-Watt MICOR Repeaters, it's moved to the 440 Ham > Band and works great. Now I know why it has such a huge heat sink for just > 2-watts. If it's doable to make it into a 12-watt station, maybe someone > will do up an article for the repeater-builder web page some time. If it > will run 10-12 watts continuous-duty instead of just 2 watts, that would be > great! I guess I'll have to spend some time researching it in the MICOR UHF > Repeater manual. Does it have a circulator also, like the higher power > MICOR UHF repeaters have? > > Larry > > Original Message: > ----------------- > From: Eric Lemmon [EMAIL PROTECTED] > Date: Wed, 05 May 2004 17:19:59 -0700 > To: [email protected] > Subject: Re: [Repeater-Builder] Re: Help Needed with UHF Micor PA TLE1713A > > Brian, > > I, too, have a 2-watt UHF Micor repeater (it was used on an oil > platform) which is essentially a 12-watt PA with an attenuator to soak > up the excess power. My reason for posting is to alert you to the fact > that the forward and reverse power sensing circuits are different > between the 2W and 12W PAs, so if you bypass the attenuator you must > also alter the sensing circuits to avoid some downstream grief. Since > you have the manual, this should not be a problem for you. > > 73, Eric Lemmon WB6FLY > > Brian wrote: > > I figured it out. The repeaters I have were 2watt versions and I had to > bypass the attenuator. Thanks for the info. It helps when you have the > manual, which I did not have until today. > > > Yahoo! Groups Links > > > > -------------------------------------------------------------------- > mail2web - Check your email from the web at > http://mail2web.com/ . > > > Yahoo! Groups Links > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
