VXR-9000U Reference Freq Adjust

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fineshot1
Posts: 76
Joined: Tue Jun 27, 2006 8:20 pm

VXR-9000U Reference Freq Adjust

Post by fineshot1 » Tue Aug 24, 2010 10:37 am

Anyone have any experience doing this adjustment procedure on a VXR-9000U ???

I can get into the dealer alignment mode but when in the tab "TX PD Det." I cannot
get the "TX PLL Ref Frequency ADJ" to work at all - simply can't get the repeater to
key up on any of the tabbed adjustment frequencies in order to make the adjustment
via the page up & down keys like the service manual ( EC044U90C ) points out on
Page G-8.

EDIT - I suspect there is an error or omission on this G-8 page.
fineshot1
NJ USA

rfcom
Posts: 12
Joined: Sun Mar 15, 2009 9:46 am

Re: VXR-9000U Reference Freq Adjust

Post by rfcom » Sun Sep 05, 2010 10:00 am

VERTEX intentionnaly omitted to install some componants on the RF board and this is why frequency can`t be tuned on the VXR-9000 V and U.

fineshot1
Posts: 76
Joined: Tue Jun 27, 2006 8:20 pm

Re: VXR-9000U Reference Freq Adjust

Post by fineshot1 » Wed Sep 08, 2010 8:27 am

rfcom wrote:VERTEX intentionnaly omitted to install some componants on the RF board and this is why frequency can`t be tuned on the VXR-9000 V and U.
oh great, that is not what i wanted to hear but thank you for this info anyway.
fineshot1
NJ USA

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ve1bxk
Posts: 27
Joined: Sun Oct 09, 2005 3:54 pm
Location: Nova Scotia Canada

Re: VXR-9000U Reference Freq Adjust

Post by ve1bxk » Wed Apr 27, 2011 7:14 pm

What frequency are you programmed for?

fineshot1
Posts: 76
Joined: Tue Jun 27, 2006 8:20 pm

Re: VXR-9000U Reference Freq Adjust

Post by fineshot1 » Thu Apr 28, 2011 10:42 am

ve1bxk wrote:What frequency are you programmed for?
Its in the 47XMhz range. Why would that matter?
fineshot1
NJ USA

stephensworld
Posts: 3
Joined: Fri Dec 09, 2011 5:45 pm

Re: VXR-9000U Reference Freq Adjust

Post by stephensworld » Fri Dec 09, 2011 5:57 pm

Hi,

I have a VXR-9000 UHF. But I don't get it running in the UHF Ham Band (430-440).
The frequencies should be RX 431.350 and TX 438.950.
The TX Unit works fine. But the problem is in the RX unit. The lowest frequency I can program is 435.400 MHz. If I set the RX QRG any lower, the receiver doesn't receive any signals.

I hope anybody can help me.

Thank you very much.

Stephan

fineshot1
Posts: 76
Joined: Tue Jun 27, 2006 8:20 pm

Re: VXR-9000U Reference Freq Adjust

Post by fineshot1 » Mon Dec 12, 2011 3:19 pm

stephensworld wrote:Hi,

I have a VXR-9000 UHF. But I don't get it running in the UHF Ham Band (430-440).
The frequencies should be RX 431.350 and TX 438.950.
The TX Unit works fine. But the problem is in the RX unit. The lowest frequency I can program is 435.400 MHz. If I set the RX QRG any lower, the receiver doesn't receive any signals.

I hope anybody can help me.

Thank you very much.

Stephan
You must have the type D which covers 450 - 490 MHz. Your lucky to get it to do anything below 440 cause its not aligned for that range
and i think the rf board has limitations that low. You might be better off with the type A that covers 400 - 430 Mhz.
fineshot1
NJ USA

stephensworld
Posts: 3
Joined: Fri Dec 09, 2011 5:45 pm

Re: VXR-9000U Reference Freq Adjust

Post by stephensworld » Mon Dec 12, 2011 6:08 pm

Hi,

thank you very much for your fast answer.
Do you know how to modify the D Version to make it possible receiving signals below 440 MHz?

Thanks
Stephan

fineshot1
Posts: 76
Joined: Tue Jun 27, 2006 8:20 pm

Re: VXR-9000U Reference Freq Adjust

Post by fineshot1 » Tue Dec 13, 2011 12:59 pm

stephensworld wrote:Hi,

thank you very much for your fast answer.
Do you know how to modify the D Version to make it possible receiving signals below 440 MHz?

Thanks
Stephan
I am sorry but i have no info on that and do not even know if it is possible.
fineshot1
NJ USA

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