- Amateur Radio (Ham Radio) Community

Call Search

New to Ham Radio?
My Profile

Friends Remembered
Survey Question

DX Cluster Spots

Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement

Categories | QRP Radios (5 watts or less) | MFJ 90-Series Help

Show all reviews of the MFJ 90-Series

You can write your own review of the MFJ 90-Series.

WD9DUI  Rating: 4/5 May 8, 2013 17:49  Send this review to a friend!
ok for QRP  Time owned: 6 to 12 months
I have the 9040, the 40M version, I obtained mine used 10 months back. I have had a number of kits and figured that I would try a full 5W radio. When I obtained the radio I notice that it would not work off a 12V system, it stated in the manual that it requires 13.8V. I gave it 13.8 and checked the voltage regulation, it seemed to be off, so some adjustments were made. With a 50-ohm dummy load I show about 8 watts. With antenna connected it is showing about 4 Watts which for me is plenty to work with. I have also installed a K12 cw keyer inside the rig, it will fit OK and you can use some of the pins that MFJ has provided for their accessories. The version I have appears to be made later and I have only 1 or 2 reports of drift.  
Product is in production.
Email Subscription
You are not subscribed to this review.

My Subscriptions
Subscriptions Help

If you have any questions, problems, or suggestions about Reviews please email your Reviews Manager