I plan to investigate the issue further and see if I can come up with a fix, as I have a significant investment in three similar mics. I've tried adding bypass caps and small ferrite cores inside the mic, and have thus far not managed to cure the RFI.
#YAESU MH 36E8J SCHEMATIC PORTABLE#
It took years until I finally realized that this mic was the reason why I had to add copious ferrite cores to every cable in my FT-817 portable outfit to be able to transmit without horrible noise or even no discernible transmit audio at all. Unfortunately, this mic (like its remote control brother, the MH-59A8J) has a serious RFI susceptibility problem. Unlike the stock MH-31A8J with its abysmally muddy dynamic element, this mic has a proper condenser element which generates very good audio. I have two of these mics which I got for use with the FT-817. So, while I like having it for the DTMF encode function, it's kind of "stunted" compared to it's look-alike 6 pin cousins used with Yaesu's VHF/UHF FM radios. So, to use this mike requires a menu adjustment.and then back again if returning to the stock mike. It really sounds tinny in a direct comparison to the stock MH-31 on 2m while listening to the audio on a talkie. I agree with the other reviewer who said that the MH-36e8j needs to have its audio gain turned down on VHF/UHF.
That's kind of sad, as the 6 pin versions of this microphone do that function on the FT-90R and FT-2600.Ĥ. No mike available will do direct frequency with an '817.
#YAESU MH 36E8J SCHEMATIC SERIES#
In fact while there are other mikes from Yaesu that WILL do this function with the 857/897 series radios, you need one of those funky aftermarket keypads to do this with the '817. It will NOT do direct frequency entry into the FT-817/857/897 series radios.
This mike provides DTMF encode during VHF/UHF repeater use. I wonder if this is because these mikes are now sourced from Taiwan instead of Japan?ģ. Now the mike (at least physically) "feels" like the e6j versions I have on my FT-90R and FT-2600 radios. I was then able to tighten the bottom 2 screws without losing the "click action" of the top buttons. Fiddling around with the mike housing's front and back while tightening the screw in the hang-up button (once I found the "sweet spot") cured the problem. The lightest touch on either button with the mike right out of the box made the frequencies change and the up or down scanning start. I had to open up my mike because the up/down buttons didn't seem to have any "click-detent" action. (No, I don't work for or have any financial stake in HRO.)Ģ. Others may be pennies cheaper, but don't have the units in-stock like HRO does. HRO undercuts many other sources at $55.95 for this mike. One wish is for an RJ45 jack on the mic itself as is done with the stock MH-31 mic because then one more easily switch between microphones if needed.Īll-in-all this isn't a bad mic if you want DTMF for your Yaesu FT-8xx.īought one of these for my FT-817 at HRO.ġ. Backlighting of the keypad is soft red and looks nice. No big deal to me because I nearly never use the up/down buttons on any mic and find them to be more annoying than useful.ĭTMF encoding on this mic works well, and I haven't had any problems with using DTMF commands on several repeater & echolink systems. I don't care for the top placement of the up/down buttons and I keep the button lock turned on at all times so as not to accidentally change frequencies. It works fine and I've switched between it and the stock mic mid QSO without telling anybody and honestly they can't tell the difference and really neither can I. I haven't had any problems with this mic. This mic also has a condenser element rather than the stock mic with its dynamic element.
The advantage over the stock mic for the FT-817 is DTMF encoding.
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