What radios do you plan on using? Some radios already have this capability such as the Kenwood TM-V7A which I use for crossband repeater all the time at 50/35watts If you are planning on a base station system and not portable there is also software out that will allow you to use your computer as the controller. One piece that jumps to mind is echostation. If you have any decent skills in schematic reading and building of systems, you would be better to go with a COS connection for the PTT as this will be much easier to control then a VOX system as it seams many are trying this now.
The biggest issue really is how do you plan on IDing the system? the rules do not say you have to use a controller or any device to ID for you, so a voice ID by you is acceptable, but know the limits of your HT or mobile station if that is the plan so that you dont leave the repeater in an unattended operation. I use manual ID method at this time, but I also have another local ham who is always willing to step in for me or wife as a control op for my system when I cant be. Remember if it fails in the on air mode it is your lic. and responsibilty to fix it quickly, which for many of us that means shut the power off and restart the sytem, and then figure out why it failed. Also I would not suggest to leave it on while you are sleeping as again this would be an unattended operation, and if someone brings it up even accidentaly it is your job to ensure it is IDed and operates within your lic. On Mon, May 18, 2009 at 10:13 PM, Fred <fj...@yahoo.com> wrote: > > > Hello: > I would like to build a low power 5 watt crossband repeater for 2m/440 use. > I recall seeing this set up using 2 HT's, also 2 mobile rigs. > Has anyone built something to suit my needs, or are there kits available ? > Thank you > 73 de Fred W1POP > > >
