Forum
× This is the optional category header for the Suggestion Box.

QCX frequency alignment - the easy way.

More
1 year 1 month ago #479 by M0NFY
To align the frequency of the QCX you need to adjust the value in menu 8.5 (Ref frq).
This comes set to 27,004,000Hz
A lot of internet searches finds some quite bizarre ways of getting this adjusted correctly.
Hopefully this will make life simpler for NARC members building this xcever.
All you need is a well calibrated radio or frequency meter. (I used my ft-897)
Go to menu 8.5 on the qcx and set the ref frq to 27,000,000Hz
Then go to menu 9.6 (signal gen) and set that to 27,000,000Hz as well.
Use the radio (or frequency meter) to search for the carrier being produced by the qcx. Mine was 27,004,850Hz. Yours probably won't be.
If you don't hear it then connect a short lead to the clk0 test pin (just next to pin 16 of IC4) and try again.
Enter this frequency into menu 8.5 of the qcx and that's it. All aligned.
Hope that's of help to somebody.

Please Log in or Create an account to join the conversation.

More
1 year 3 weeks ago #482 by g8oo
Replied by g8oo on topic QCX frequency alignment - the easy way.
Tnx fer info

I was wondering how to do this and your suggestions will greatly assist

TTFN de AlanH g8oo

Please Log in or Create an account to join the conversation.

Time to create page: 0.073 seconds

NARC Training 2019

Training is very important to us as we realise that is how new people can come into the hobby and attain their Foundation, Intermediate and Advance Amateur Radio licenses.

The Syllabus and Exams for all levels is changing significantly from August 2019 and so like many other clubs we need to take a break from running courses from August to give us time to research, prepare and plan courses based on all three levels for 2020. However we will be running three courses before August; A Foundation course in April, an Intermediate course from March - May and another Foundation course in June - July. So if you would like to take either of these exams with NARC in 2019 you need to book your place as soon as possible by emailing Exam Secretary David G7URP: This email address is being protected from spambots. You need JavaScript enabled to view it.