[Repeater-Builder] Micor Repeater Parts needed

2007-01-23 Thread k4ldi_756
Our club needs MICOR components for the 138-158 VHF range.
We currently have a DVP unified chassis and have modified it to work as 
a repeater using the associated SCM card.  It works fine with the 
commercial crystals, exciter and receiver it came with but it is in the 
Highest portion of the VHF band.

We need to be able to tune down to 145.170 transmit, 144.570 receive.
So we need the exciter, receiver and the PA for that range.  We have 
the cabinet, power supply and the other cards we need.

As far as we can determine, we need the DVP receiver board TLD8272B, 
exciter TLD5802A and the 138-150 MHz PA.

In lieu of that, we would be interested in a unified chassis and PA for 
the 138 - 150 VHF range or the next VHF frequency range up (150-175) in 
hopes we can retune it to work for us.

Any info or advice would be helpful and appreciated.
Thanks
K4LDI Yahoo email [EMAIL PROTECTED]



Re: [Repeater-Builder] Micor Repeater Parts needed

2007-01-23 Thread Scott Zimmerman
The only portions of what you have that WILL NOT move to 2M easily are the 
receiver and the PA. The exciter that you have is a 150.8-174Mhz one. Most of 
them will tune to 2M without any changes. If changes are needed, it's only to 
make the last two slugs tune correctly. (Change 2 caps)

The receiver's local oscillator chain will work OK on 2M (it's identical in 
component values.) You *will* need to change the helical resonators and the 
mixer coil, to work on 2M.

The PA you have is useless on 2M. you need to find a 150.8-162 Mhz PA and 
transplant it. The PA's in the mobiles are VERY similar and can be transplanted 
easily. Keep the high split PA though, it will work good for spare transistors.

Although often not a necessity, you should drill and adjust the Exciter 
band-pass filter for the least amount of loss.

Converting your station is your best bet. Trying to find genuine 2M parts is 
VERY difficult if not impossible. That is why there is a great amount of 
conversion information on the repeater-builder site dealing with moving from 
one band to another.

If you need help or need someone to do the conversions for you, Please feel 
free to contact us:

http://www.repeater-builder.com/custombuilt/index.html
http://www.repeater-builder.com/rbtip/customrepair.html

Scott

Scott Zimmerman
Amateur Radio Call N3XCC
612 Barnett Rd
Boswell, PA 15531

  - Original Message - 
  From: k4ldi_756 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Tuesday, January 23, 2007 1:08 AM
  Subject: [Repeater-Builder] Micor Repeater Parts needed


  Our club needs MICOR components for the 138-158 VHF range.
  We currently have a DVP unified chassis and have modified it to work as 
  a repeater using the associated SCM card. It works fine with the 
  commercial crystals, exciter and receiver it came with but it is in the 
  Highest portion of the VHF band.

  We need to be able to tune down to 145.170 transmit, 144.570 receive.
  So we need the exciter, receiver and the PA for that range. We have 
  the cabinet, power supply and the other cards we need.

  As far as we can determine, we need the DVP receiver board TLD8272B, 
  exciter TLD5802A and the 138-150 MHz PA.

  In lieu of that, we would be interested in a unified chassis and PA for 
  the 138 - 150 VHF range or the next VHF frequency range up (150-175) in 
  hopes we can retune it to work for us.

  Any info or advice would be helpful and appreciated.
  Thanks
  K4LDI Yahoo email [EMAIL PROTECTED]



   


--


  No virus found in this incoming message.
  Checked by AVG Free Edition.
  Version: 7.5.432 / Virus Database: 268.17.8/648 - Release Date: 1/23/2007 
11:04 AM