- 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 | Antennas: HF: Vertical, Wire, Loop | Diamond CP-610 Help

Show all reviews of the Diamond CP-610

You can write your own review of the Diamond CP-610.

PA3FPZ  Rating: 2/5 Jul 30, 2013 05:33  Send this review to a friend!
OK on 6 bad on 10  Time owned: 0 to 3 months
At first glance a decent antenna. Comes in a good box, with all parts individually sealed. The aluminium used is hard drawn, makes a high pitched sound when tapped. Assembly is easy, tuning is pre-set, just follow the instructions in Japanese English (HiHi). Installing it on my tower went stress-free as well, until I came to the final part, the 10 meter resonator. The thread on the resonator did not fit into the radial ring. I had to re-tap the tread. Then came the final tuning. I tried 6 meters, big smile, nice resonance on 50.7 MHz, good reception as well. A real winner, at least I thought so.
Tried it on 10 meters, no joy! I could not get it resonant anywhere. Borrowed an analyser and found it resonant on 32 MHz. No matter what I tried, I could not get it to resonate on 10 meters. Talked about it to my dealer, supposedly a known problem and within two days I got a replacement resonator. After replacing the resonator, still no joy, it was now resonant on 30 MHz and 16 MHz. I lost all confidence of it being a dualbander, also this known problem should have been explained to me on buying the antenna.

Conclusion: Great for 6 meters, definitely not anywhere else.
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