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VX4000 - alignment question

Thread starter g8tzl2004
Start date Nov 21, 2014

Status: Not open for further replies.

g8tzl2004

Member

Nov 21, 2014

I have successfully programmed my VX4000 but I want to realign the band pass filters.

I understand I need to use the SVC software for alignment.

The service manual just mentions the standard programming CT-70 cable for realignment but I have also read about having to use a FIF-8 firmware rom adapter and CT88 (rear DB25 cable) to realign the VX4000.

So can I just realign the band pass filters using a standard programming cable?

If not, is the FIF-8 just a basic RS232 to TTL level converter? The service manual shows TXD, RXD and GND lines which suggests that alignment may be done using a "3 pin" level converter whereas the VX4000 just uses "2 pins" (GND and clone) for basic programming?

Can I use my ancient Yaesu programming box which you can set up for 2 or 3 pin programming?

Thanks