I cannot recall the Bands used for Public Saftey Freq.s when they used what was called Mobile Extenders, but I believe that they used 2 different bands in Michigan something like VHF Hi to VHF Lo . I was wondering if you were ( being more expense of course for the Volunteer ) using a VHF - UHF type of a repeater say VHF in UHF out or UHF in VHF out ?
it may eliminate problems in can detuning from mobile vibration from what Jim B. is saying here. M. H. ----- Original Message ----- From: "Jim B." <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, January 13, 2005 11:47 AM Subject: Re: [Repeater-Builder] Mobile Duplexers > > [EMAIL PROTECTED] wrote: >> Does anyone know if there is even a mobile duplexer made for the 2 >> meter HAM split? Make? Price? This is for a portable GR 300 >> repeater. >> >> Thank you. >> Rod KC7VQR > > No. Can't be done. To get the isolation you need for the 600Khz split on > the 2M ham band, the cavities must be much larger, too large to be > called 'mobile'. Plus the tuning adjustment will be touchy enough that > the bouncing around will de-tune it. > Portable repeaters for the 2M ham band don't work well. Getting rid of > the desense takes some doing. It's not imposssible, but it ain't easy. > > -- > Jim Barbour > WD8CHL > > > > > > > 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/
