[FADCA] Low range and High Range UHF Mitreks - HELP!

[bud thompson]

Oh... the good news is you are telling me my high frequency (450-512MHz)
units will tune down to 430... but the bad news is you didn't tell me how to
make the compensation to the channel elements... What is the possibility
that our crystal supplier did not realize I was using high frequency UHF
Mitreks, not the low frequency ones (403-420MHz)?

How do I solve this?

What is the status of getting Clermont on FPAC?

thanks,
bud

----- Original Message ----- 
From: "Dan Babilla" <dbabilla at earthlink.net>
To: "Florida Amateur Digital Communication Association"
<fadca at mailman.qth.net>
Sent: Wednesday, July 21, 2004 20:03
Subject: Re: [FADCA] Low range and High Range UHF Mitreks - HELP!


> Bud,
>
> I have Mitreks on 430 mhz. I have not had an issue with making them play
> down there. You have seen one of them personally, if you remember. I think
> your crystals need the proper compensation network component values. The
> component values change in Channel element as you move out of band......
>
> 73's Dan KA0OXH
>
> ----- Original Message ----- 
> From: "bud thompson" <budt at cfl.rr.com>
> To: <fadca at mailman.qth.net>
> Cc: "Andrew Czermann" <kf4atc at bellsouth.net>
> Sent: Tuesday, July 20, 2004 1:02 PM
> Subject: [FADCA] Low range and High Range UHF Mitreks - HELP!
>
>
> Deltona
> Tuesday July 20
>
> We are trying to tune some UHF Mitreks to 430.250 and 430.550 w/o Joy!
>
> We have a garage full of Mitreks and have tuned many to 440.nnn and
446.nnn
>
> The only UHF Mitreks we have include various chassis numbers all
indicating
> 450-512 Mhz range.  In the literature there are other Mitrek chassis
numbers
> that would indicate 403-420Mhz range.
>
> Must we have the 403-420Mhz range units to get one to retune to 430.nnn?
>
> (We get virtually no RX oscillator activity for 430.nnn with the units we
> have - is there a mode for these higher frequency units?
>
> For your reference here is where you can find a lot of reference info for
> Mitrek model and chassis models.
>
> http://www.repeater-builder.com/mitrek/mitrek-modnum.html
>
> Thanks for a quick response if you know for sure!
>
> bud N0IA
> 386 574 4124
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