- 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 | Microphone Equalizers & Transmit Audio Accessories | Datong Automatic R.F. Speech Processor Help

Show all reviews of the Datong Automatic R.F. Speech Processor

You can write your own review of the Datong Automatic R.F. Speech Processor.

IZ1FKS  Rating: 4/5 Aug 14, 2014 10:49  Send this review to a friend!
works with 756 pro 2  Time owned: 3 to 6 months
I have been using it for a few mounths, now I am able to enhance the average rf power output I found low on this rig (in comparison with my old ic-745 for example). I switched off the internal COMP. Since Datong ASP is built to be used with a dynamic microphone I modified it to use the icom hm-12. Anyway I have to selected high impedence on Rin selector in order to reduce the too loud signal coming form a electret condeser mic. Probably an attenuator should be designed and place i front of the asp input. Pay attention to ground loop with this unit, use battery or a dc supply different from the rig one (the rig ground and Datong ASP grounds need to be separated). If external power supply is used I suggest to change the rear dc jack connector with a connector adequate for supply in order to avoid polarity inversion (I damaged the rig mic input due to dc on jack) 
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