- 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

Reviews Categories | SWR & Wattmeters & Dummy Loads | Diamond SX-400 Help

Reviews Summary for Diamond SX-400
Diamond SX-400 Reviews: 14 Average rating: 4.4/5 MSRP: $115
Description: band coverage........ 140-525 MHz
accuracy............. 񷆧0%
connectors........... SO-239
insertion loss....... .3 dB maximum
minimum sensitivity.. 4 Watts
power range.......... 5/20/200 Watts
dimensions........... 2.4"H x 6.1"W x 4.1"D
weight............... 1.2 pounds
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 Diamond SX-400.

<— Page 2 of 2

WR2W Rating: 5/5 May 23, 2003 19:52 Send this review to a friend
Looks & Performs Great  Time owned: more than 12 months
I really like the control lay-out, appearance, and size of this meter. Good to hear another review compaired it to a Byrd meter with accuracy. My other two Diamond meters in the HF range should be the same. I compaired results using two different models on the same radio, and got the same results. They complement my station set-up....
KD5LDW Rating: 5/5 Jun 28, 2002 10:42 Send this review to a friend
Love IT !  Time owned: more than 12 months
I to have owned the SX-400 for quite some time now and I couldn't be happier. Lighted meter helps at night , friend brought his BYRD by & the DIAMOND reads right with it, Just my opinion "you can not go wrong with this meter" It does the job it is asked to do & does it well also it is a beautiful meter .
AB0RE Rating: 5/5 May 28, 2002 23:07 Send this review to a friend
Does what I want it to....  Time owned: more than 12 months
I've owned the SX-400 for quite some time now and I couldn't be happier. It's priced competitively, looks sharp, is easy to use, and seems reasonably accurate. What more could I ask for? It runs laps around the MFJ VHF SWR meter that I had before this.

As for the SO-239 connectors... All of the equipment and antennas that I own have SO-239/PL-259 connections. I suspect that's why Diamond opted to have SO-239's on this unit - they knew they wouldn't sell a lot of these units with N-connectors as very few people use them below 500MHz. I do think it would be nice, however, to have the option to get the meter with N-connections of desired - perhaps the SX-400N? :-).

Also, the loss is within the PL-259's themselves... not so much in the meter... so Diamond should not be faulted for this.
KG6AZK Rating: 2/5 May 22, 2002 01:49 Send this review to a friend
Think first!  Time owned: 0 to 3 months
I admit, this is a fine looking meter! I love the SX-200... However, I immediately took this meter back when I realized it has SO-259 connectors! Diamond claims and insertion loss of 0.3dB at 70cm, but EACH SO-239 has an insertion loss of 1.0dB. That means the absolute minimum insertion loss must be 2.3dB. In practice, I found it to be about 3dB. Do you really want to loose 1/2 of your power, and 1 S-unit just by putting this thing inline?? I don't think so...

Thus, I wouldn't buy... go for the SX-1000, it has N connectors.
<— Page 2 of 2

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