No problem Randy... Mitrek radios make good repeaters as long as you don't run a lot of power within the chassis. It's probably better to run two radios (one tx, one rx) if you plan to use the high power output tx radio.
I buy my crystals direct from Bomar and re-rock the channel elements myself. Although there is a $50 min order I just buy some standby crystals often on other interesting frequencies. Bomar charges about $15 per crystal, which is a very fair price. Sometimes you can go in with other folks to make the min order amount. cheers, skipp > "Randy Thomas" <[EMAIL PROTECTED]> wrote: > Hi Skipp > Thanks for the info, Pretty well what we figured but thought > we would ask. We got the Mitrek finished today and it seems > to be working fine. Waiting on the Channel Elements to arrive > to finish up the job. > > > > Randy > ----- Original Message ----- > From: skipp025 > To: [email protected] > Sent: Sunday, September 23, 2007 12:27 PM > Subject: [Repeater-Builder] Re: Mitrek Question > > > Hi Randy, > > Can't give you the details of the specific resistor requirements > without knowing more about your specific controller mod... but I > can tell you some tricks to try with the 10K Pots (controls) you > have available. > > You can place resistors in series with the pot leads to make > the 10k pot a 25k value with slightly reduced center wiper lead > adjustment range. > > If you place one 15k fixed resistor on one of the "outside" pot > leads the control becomes a 25k pot with a wiper travel only > over the 2/5th of it's normal range. If you place the resistor > on one end the 2/5 range is on the low side, the other side the > 2/5 range is on the high side. > > .... and you can center the pot wiper range by placing two > (equal) 7.5 k resistors (or anything close) on each pot outside > lead. The available 2/5 wiper range will be in the center of > the entire 25k value. > > If you get the idea of ratios... placing resistors in series on > the pot solder terminal outside leads in various combinations will > give you the 2/5th (ratio) operation of a regular 25K pot. > > Normally in a repeater/base conversion (operation) you only need > final adjustments well within a 2/5th range. So you can have a bit > of free lunch in this example. The only small trick is to figure > out where/how to best select and place the extra fixed resistor(s) > onto the potentiometer outside solder posts/terminals. > > cheers, > s. > > > In interfacing the Mitrek to a Controller it calls for 25k > > pots for the Squelch and Volume controls along with a 3.3 > > and 10k resistors. All I could round up here was 10k pots > > which I read in one of the listings would work fine but it > > never said anything about changing out the 3.3 and 10k resistors > > for something differnt if the 10k pots was used. Can > > someone set me straight, I have only had one pot of coffee > > so far and it takes at least two to get me going. > > Randy > > >
