- 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

donate to eham
Reviews Categories | Power Supplies | MFJ-4230MV Help

Reviews Summary for MFJ-4230MV
MFJ-4230MV Reviews: 10 Average rating: 4.5/5 MSRP: $89.95
Description: 30 amp switching power supply
Product is in production.
More info:
Email Subscription
You are not subscribed to this review.

My Subscriptions
Subscriptions Help

You can write your own review of the MFJ-4230MV .

ND4MR Rating: 5/5 Mar 15, 2015 08:24 Send this review to a friend
a product endorsement  Time owned: more than 12 months
This small-size '4230 has both my HF rig and 2 meter rigs connected to it. Since there is never an occasion when both are transmitting at the same time there is no possibility that I'll exceed the rated current capacity. The '4230 barely gets warm when transmitting on the 100 watt SSB rig, and although the fan occasionally comes on when I'm transmitting the sound level of the PS fan is very low and hardly noticeable. Unlike a previous posting, I have not detected any RF noise generated by this PS.
W0RUS Rating: 4/5 Jan 14, 2015 01:27 Send this review to a friend
Nice product  Time owned: 0 to 3 months
Well I just received my MFJ-4230MV today from the major outlet. Sad, I ordered the MVP model with the power poles but received the MV without. Oh well, I'll live with that. Hooked up the Rigrunner 4008 to the new supply and fired up the power supply. I have to laugh, MFJ claims there is a "Fan ON LED" but I have yet to find it. However the meter is lighted which is a nice surprise since that is not mentioned. Dialed around all the HF bands on my 746 and have not heard any hash yet. The supply is sitting a couple of inches beside the 746. I purchased this supply strictly due to another MFJ supply I have that the fan runs constantly and is rather loud, and I was wanting to quiet things down. The 4230MV is doing just that, little fan run-up when you first power up, then goes off till needed. Quality of the cabinet is good, knob and switch feel good and solid. Overall my first impressions are good. Now time will tell.
AH7I Rating: 2/5 Dec 13, 2014 17:15 Send this review to a friend
RFI on 80m and 160m  Time owned: 0 to 3 months
My first "modern" SMPS for ham stuff.


It's like the 4230MV but with power poles on the back.

1. Power poles were defective. Plastic warped..
MFJ kindly sent me some replacements so I would not be without a PS. Swap took about 10 min.

2. Noise. It blows. I just got my antenna back up for 80m and have been listening there and on 160.The MVP makes S5 to S7 RFI on 160m and 80m in a receiver that is not connected to it!

Heath HP-13 did not do this. FT101 built-in DC supply did not do this. My laptop, "pig in a python" supply makes a little noise but it has to be close to the antenna.

So, a rating of 2 "needs help" and I'll review again when it has had some help.

N8OX Rating: 5/5 Nov 23, 2014 17:42 Send this review to a friend
Big Surprises Come In Small Packages  Time owned: 3 to 6 months
Purchased a new Yaesu FT-857D from GigaParts. They had the MFJ-4230MVP on sale for $89 and since the radio was getting free shipping and based on the reviews here, I had one added to the order. It also prompted me to order some Anderson PowerPole terminals to take advantage of those connections (in the rear). I have been very pleased with the operation of this power supply. Small, quiet, efficient, and was purchased at a good price. My meter indicates very close to the voltage displayed on my digital voltmeter. Having an option to display voltage or amps is nice too. Binding posts on the front is also a plus. I have not observed any hash. You can get a bad apple from any orchard but this one seems to hit the mark for MFJ. I highly recommend this power supply. Lots to offer in a small package and very easy to transport if doing a little/lot of traveling. And those PowerPoles make connecting equipment a snap (yes, a pun was intended). I hope, if you try one of theses, you have the same luck with yours as I have had with mine.
K0FL Rating: 4/5 Oct 28, 2014 17:16 Send this review to a friend
Good-but...  Time owned: 0 to 3 months
I bought a new 4230 and was very disappointed. I had a hash 5kcs wide every 40kcs and constantly moving on 10 meters. I decided to email MFJ and see if they had answers. After two email exchanges I sent my 4230 to them and they replaced it. Was squared away in about 10 days total. The "new" new 4230 is much better. I'm happy with how quiet the supply is both hash on the bands and just sitting operating. This is a quiet supply. The fan blows a few seconds when you first turn it on just to let you know it's there. I have not heard the fan come on yet using it to operate my IC-7600 and other meters-tuners. Seems to be a stout and solid power supply. I give it a 4 due to my bad first supply. MFJ customer service was great.
WD8DBY Rating: 5/5 Oct 26, 2014 21:15 Send this review to a friend
Excellent Product  Time owned: 3 to 6 months
This little power supply is running the new commercial Icom F8101. The fan kicks on when initially powering up the supply but then goes silent. The output adequately handles the F8101's 125W output. There is no hash or other interference. An excellent product, small physical footprint and good power out.
AE5J Rating: 5/5 May 31, 2014 07:11 Send this review to a friend
MFJ got it right  Time owned: 0 to 3 months
I have been one of those who has had consistently good luck with MFJ products over the course of many years, but I must say the 4230MVP is a cut above past products in every respect.

I opted for the Anderson Power Pole option but I have yet to use them. I am using the front connectors. The supply is very quiet. No hash and no big fan noise. Everything I hoped for at a great price. It is indeed extremely small and feels very solid. Exactly what I needed.
W5CBO Rating: 5/5 Jan 17, 2014 10:53 Send this review to a friend
Nice power supply  Time owned: 0 to 3 months
I hope I'm not premature in writing this but my initial thoughts after using this a few days on my IC756 ProIII is that it's a great little power supply. No hash on any band,quite fan and seems to be rock solid on output.
N4KVE Rating: 5/5 Nov 23, 2013 17:28 Send this review to a friend
GREAT POWER SUPPLY  Time owned: 6 to 12 months
Finally, a quality MFJ product. I have been using this for about 8 months, & it's been perfect. MFJ does not make this product. They import it, & put their logo on it. The exact same supply is sold by QJE, & Jetstream, but is actually made by Nissei Electric. I only use mine for VHF-UHF mobile radios in the house, & let a heavy Astron run my HF radio. The fan always runs slowly, & only speeds up when the unit is working hard, but the fan is always quiet. This is one MFJ product I would not be afraid to buy. N4KVE
AB4O Rating: 5/5 Nov 23, 2013 17:03 Send this review to a friend
Perfect for FT-857  Time owned: 0 to 3 months
When my centuries old rs-35m started humming really bad, I needed a quick replacement. Quality build, quiet, and most of all no hash or birdies.

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