Well I actually talked to Bob last week about program 36 and asked him some questions. I have a Heil Dynamic mike and I run an ICOM 746 pro which has phantom power at the mike. What I did prior to purchasing a mixer was used Heils XLR cable from the mike to the radio. It has a built in capacitor in the cable to block the phantom power. LAst Saturday I bought a Mackie 802-VLZ3 along with one additional XLR cord. I choose a Mogami brand hoping for the shielding. I run the Mogami from the mike to the board and run Heil's XLR from the board into the mike input of the radio. No special cables needed. I choose the Mackie over the Beringer because I had an XLR out which I could choose for MIC or line level out. My Mike input need MIC leve inputs so as not to be over powered.
Since last weekend I have received some really great audio reports. Easy to set-up and has made a big difference. I also run full legal through an Alpha amplifier. You can never be 100% RFI safe. Take a look at this article A Ham's Guide to RFI, Ferrites, Baluns, and Audio Interfacing
by Jim Brown K9YC
Audio Systems Group, Inc.
I have since orderd some snap-on Fair-Rite ferrittes #0431177081 and 0431177081. There is a specific section in the Brown article that talks about RFI in the shack with microphones. I haven't noticed any but it is cheap insurance.
Hope this helps -
73, de Will KB1PXU
Last edited by KB1PXU; 10-08-2012 at 02:12 PM.
The 'Audiophile' ham!!
I use a Mackie Onyx 1220 mixer with independent phantom power to each of the XLR equipped channels; and I agree with your comment on dynamic microphones.
Originally Posted by KC8RLU