J and the Group, I have a converted MICOR mobile one 220 with a Toshiba amplifier module in it set to 15 W out driving a TE Systems 2206RN amplifier with 65 W out. In Skipps vault on Mt. Vaca and it has been working flawlessly since its installation, four years ago. The TE Systems, amplifier was not cheap, but when you take into account that I have not had to go up to the top of the amount in four years to work on it, it's a great deal.
Gregory AC6VJ --- In [email protected], "K5IN" <k...@...> wrote: > > Kevin, > > > Any suggestions for a decent quality 220mhz amp for repeater duty? > > Micor 20-25 watts drive or pull the PA and exciter in and 50-60 watts > output? > > > Thanks > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Kevin Custer > Sent: Wednesday, October 14, 2009 5:57 PM > To: [email protected] > Subject: Re: [Repeater-Builder] Radio conversion to 225MHZ > > > > J wrote: > > Has anyone converted any of the commercial (GE/Motorola) radios to the 220 > band? If so what works and what doesnt. I need several 225 radios and > thought this might be a route to go. > > I have converted MASTR II Mobiles, both multiplier and PLL exciter, with > standard receivers to 220 MHz. - they work fine, the PLL is easier. > There are preferred instructions on the MASTR II conversion site: > http://www.repeater-builder.com/rbtip/geindex.html#220 > <http://www.repeater-builder.com/rbtip/geindex.html#220> > > For the M2 with a PLL exciter, Scott sells a complete conversion kit: > http://www.repeater-builder.com/products/MIIconversionkit.html > <http://www.repeater-builder.com/products/MIIconversionkit.html> > > The PA's won't convert, but there is an easy fix: > http://www.repeater-builder.com/products/ampbd.html > <http://www.repeater-builder.com/products/ampbd.html> > > I have converted MICOR Mobiles and Stations to 220 MHz. - they also work > fine. There are preferred instructions on the MICOR conversion site: > http://www.repeater-builder.com/rbtip/micor-index.html#220 > <http://www.repeater-builder.com/rbtip/micor-index.html#220> > Helical Resonators modified for 220 operation are available here: > http://www.repeater-builder.com/products/ > <http://www.repeater-builder.com/products/> > > The PA's won't convert, but again - never fear, the amp board is the > solution: > http://www.repeater-builder.com/products/ampbd.html > <http://www.repeater-builder.com/products/ampbd.html> > > Any of the above radios can be converted to 220 MHz and achieve book > specification sensitivity on the new band. My favorite is the MICOR. > > Hope this helps... > Kevin Custer >
