I am looking to purchase a mobile rig and was prepared to purchase the FTM-200D, but after reading several posts complaining of a "hum" noise on DN mode, I hesitate.
One reviewer posted regarding the "Hum", but came to the conclusion that it was "not that big of deal" and was happy with the radios performance.
I e-mailed tech support with DM Engineering and received this reply :
Brad,
Thanks for your question(s).
I am familiar with that issue as I had a fellow ham friend with that very issue.
In most cases the fix is a simple one. When installing the radio run the power cable directly to the battery.
By this I mean run both the positive and the negative power leads to the battery. The hum in most case is picked up
by the radio because the power is being derived thru the fuse panel as are most all other items on the vehicle and therefore
you have the hum or in some cases a whine.
Hope this helps.
73
Mark, N8NH
DX Engineering
Would y'all follow through with the purchase ?
Thanks in advance,
Brad