Great radio needs a great microphone!?

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  • Question
  • Updated 5 years ago
  • Answered
My 6500 arrived last monday here in Amsterdam, the Netherlands.
I made some solid DX with it over the last days.
Now im looking for some advice over what microphone to use.
At the moment im using a very cheep (10 euros) microphone on the XLR input.
You have some suggestions for me?

Many thanks,

Peter PD0HHG
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Peter PA3PM

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Posted 5 years ago

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Bob G W1GLV

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I use a Heil PR-781 and have great results.
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Jerry - W2TXB

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Same here... PR781 with Aphex Exciter, and receiving excellent audio reports every time. Also have the Heil ProSet Elite headset/mic (front panel connector) and getting great audio reports with that as well.
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Keith Pawley

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Hi guys i am just waiting on my PR781 some tried and tested settings would be great if possible please ie low cut/high cut,bias on or off +20db on or off and transmit eq settings.
best regards
Keith
M0PAW
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Ken - NM9P, Elmer

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I'll try to send you some suggestions when I get home this evening. I use a PR22UT, which has similar characteristics.
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Keith Pawley

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Thanks Ken..
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Ken - NM9P, Elmer

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See my post and picture of EQ down below....
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Ken - NM9P, Elmer

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Microphone selection depends largely upon your voice and the sound you are trying to achieve. I am using a Heil PR22UT that was US$106. There are other mikes that are also good..just watch out not to get something with too much "proximity bass" or your sound will change dramatically whenever you move your head.
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Sergey, R5AU

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i use Heil PR-781 also - assume this is a one of the best choice for this radio
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Tim - W4TME, Customer Experience Manager

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I have a bunch of dynamic and large diaphragm mics and I have settled on my trusty Shure SM58 that is about 30 years old that is road worn from 5 years of performing every weekend. It is a winner.
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Andrew Russell

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Tim, I have the SM58 predecessor the 565SD and used it on the 1500. It was my sisters when she did vocals for a band 40yrs ago. Flat response as per specs. How do you run PTT? I actually like PTT on the hand mic but do use Heil foot switch or hand switch or MOX with the mouse with a headset for 1 or 2 hands free.
Andrew.
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Tim - W4TME, Customer Experience Manager

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Sorry for the delayed response. I use a stomp to talk foot switch and the mic is on a boot for hands free operation.
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Dave - WB5NHL

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I'm using the Heil Pro 6 headset.

As a starting point for setting the equalizer checkout this link

http://www.ges.cz/sheets/h/heil_pse6.pdf

It's the only info I've been able to find on the frequency response of the headset.
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Frank, IZ7AUH/AK1CQ

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I have too.... please give me you Eq setup ant TX DSP settings
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Steve K9ZW, Elmer

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I've been switch back and forth between a RadioSport RS60CF Boomset and a Yaesu MD-200 desk mic.

Great reports with both.

YMMV

73

Steve
K9ZW
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Ken K7YR

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I have a Heil Pro Set Plus. I have been using it for some time now, It works great on my Flex 5000A, the Flex 3000 and Icom 756 Pro.

I get good audio reports on the Flex 6700, but wonder why the microphone gain needs to be set at least 90 and the compressor at about 50 to generate reasonable output. At these settings, the peak audio on the Microphone meter still fall short of 0 DB.

I also note that while the compressor level does change, there is no indication on the visual compressor meter.

Ken K7YR
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Dave - WB5NHL

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Ken;
From the Known Issues, Caveats and Limitations for ver 0.15.13 SmartSDR

8. The audio compressor (COMP) bar meter is not operational
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Ken K7YR

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Thanks Dave,

I thought that I read that the compressor bar was not operational, however the thrust of this is the audio settings for the microphone and compressor to provide reasonable PEP output and as noted by the difficulty to reach the 0 DB point on the microphone bar. I think that 90 for the microphone and 50 for the compressor is unusual

Ken K7YR
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Ken K7YR

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Up date,

I was told that I need to increase the microphone gain by adding the 20 DB feature. Works for me, but I am still curious about the microphone audio chain.

Ken K7YR
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Michael - N5TGL

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I think the concept is that if you are using an external preamp (mix board, etc.) you don't need the +20 dB, as the board is capable of providing enough drive. If you connect directly to the radio with the mic, you'll need the +20 dB since you have no preamp in the chain.
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Michael - N5TGL

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I use an ElectroVoice RE320. If you are looking for a great mic, look no further.
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Jim Bryce W5HFS

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Heil PR-781 (Flex can supply). Your voice signal will sound like an FM broadcast station -- within bandwidth limits, of course. :-)
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Ed baker

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Hello
Mine is a audio Technicia 2050 With the Focus rite USB 2i2 Preamp.

I have used PR-40 SM7B and now this 2050 .
Hardware wize , IHY boxes , Rack gear and now Pro TOOLS .
The 2050 or a 2035 is a pretty good bounce for the buck . It does need 48 VOLTS
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Tom-KJ4QDZ

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I've made only about 15 qso's in the past couple of days using the Heil PR40. All stations have made comments about the excellent audio quality except for a couple Dxpeditions.
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Andrew Russell

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My Yamaha DM-105 is getting good reviews on air with applied EQ.
http://asia.yamaha.com/en/products/au...
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Martin Smith

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HI,
Am using the Heil PR781... nice audio
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Charlie, WA3UTC

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I am using an old Electrovoice RE-20 with great results. Remember its all about your voice and your discretionary funds....
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Ken - NM9P, Elmer

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A couple of days ago, I experimented with a cheap, $2.99 electret mike element from Radio Shack. I just soldered it to some RG-174 cable, connected it directly to the front panel mike input and turned on the BIAS setting.

Believe it or not, with no case on it whatsoever, I was able to get some pretty good audio out of it after spending some time with my TX EQ and bandwidth controls.

It wasn't as smooth and deep as my Heil PR22UT, but it was very acceptable.
So if you don't have the funds for a great mike, you can get pretty good with one of these, if you work at it. But as with any mike, If you just hook it up and start talking it is going to sound bad. TX EQ is your friend!
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John Molenda

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just ordered the arlan Headset with condenser mic for the 6700 is anyone using one of these ? John kb2huk
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Mickey N4MB

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I'm using a Heil PR40 connected to the balanced audio jack. I have to run the gain high, but it sounds great.

73,

Mickey N4MB
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Jerry - W2TXB

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Using a PR781 (from my 5000A) through an Apex Exciter; works great and my audio reports are consistently very good. Also occasionally using a ProSet Elite with equally good results.
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Reg

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Jerry:

Which model of Aphex Xciter are you using? Thanks.

Reg, KD5RB
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Jerry - W2TXB

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It is the "Aural Exciter with Optical Big Bottom" (without the tube preamp).
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Ken - NM9P, Elmer

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Keith Pawley and others with PR-781, PR22 & Pr20...
Here is a picture of the settings I use on my 6500 with Heil PR22UT, which I am told is similar in response to the PR781. In any case, it is a good starting place. Your own voice and application will require slightly different settings.

I use the BAL XLR connector in the back with +20 dB activated.

For Rag Chew, I have TX bandwidth 100/2950 (I could go to 3000 but shave a little off so as not to encroach on the next group. I use compression anywhere between 30-60 depending upon conditions.

For weak signal, I shave the low end off at 200 or 230 for my particular voice, and sometimes even as high as 300. I make now additional adjustments to the TX EQ. On the high end, I may narrow it to 2700 or even 2500 but never below that to preserve enuncial articulation. And I may add some more compression. With release 1.05, I have run compression up to 90 with no problems. I will need to adjust things when the new software version comes out if they have altered anything in the audio chain.

The most important thing is that I watch my spectral display and try to make the low end and the high end about the same amplitude with a few slight dip about 500-1000 Hz. If you have too much low end, you will be muddy and hard to understand, too much high and you will be harsh and irritating. But in the pileup or contest, drop more bass and add some highs, but not too much or you will be hard to zero beat and people will constantly call you off frequency. BALANCE is the key. And be sure to listen to yourself in another receiver, preferably by recording yourself. The monitor is a help, but you will not hear what you really sound like to the other station because you will hear more through bone conduction in your head than through the speaker. And you will not take into effect the way the other station's filtering affects your sound.

Here is a screen shot of my mike and EQ settings.... Good Luck!

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Tim - W4TME, Customer Experience Manager

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This is a great conversation that's separate from the main topic, so I created a new question topic to continue the discussion. Please reference the new topic here: How to set up a PR-781 with the FLEX-6000
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Keith Pawley

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Thanks very much ken that gives me a great starting point..
Keith
M0PAW

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