I wired up a D-104 to my Flex 6300.
The PTT keys up right away but audio is not accepted for 1.5 seconds both on AM and SSB
On SSB you don't even got ANY RF for 1.5 seconds. ON AM when I key PTT the carrier is immediate. but audio is delayed 1.5 seconds. The FHM-1 mike works normally.
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Posted 4 years ago
Ken - NM9P, Elmer
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Ken - NM9P, Elmer
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Ken - NM9P, Elmer
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Here's one source for the Heil HC-104 restoration kit at DX engineering. http://www.dxengineering.com/parts/hls-hc51retrokit
This is my D-104 after I refurbished it and put it into use when I still had my 5000.

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Otherwise you sound like your shorts are too tight.
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Jay -- N0FB, Elmer
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I know you can can wire the D104 to the Flex, the question is why would you want to? That you can do a thing, does not mean that you must or should do a thing.
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Ken - NM9P, Elmer
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1) make sure the slide switch is in the "wide" response position.
2) use the TX EQ to balance the audio response , cutting bass and boosting treble as necessary. Use the zoomed pan adapter to visualize the pattern as you make adjustments. Listen in a second receiver, preferably recorded and played back, and eliminate peaks and holes in your audio until it sounds good.
3) use appropriate amounts of compression (NOR, DX, DX+) to keep levels steady and Increase average talk power.
4) talk across the face of the Mike at a distance of about 2 inches.
Ken - NM9P
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Ken - NM9P, Elmer
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Be sure to save it as a separate TX profile.
Tim - W4TME, Customer Experience Manager
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Setting the Tone switch to the "1" (left) position will enable a wider frequency response, resulting in higher fidelity audio. It is recommended that the Tone switch be set in the 1 position and use the software EQ to tailor the tonal qualities of the microphone with your voice.
Setting the Tone switch to the "2" (right) position will roll off the bass frequency response resulting in more audio energy in your transmitted signal. However the same effect can be achieved by setting the Tone switch to the 1 position and using the software EQ to reduce frequencies in the 50-400 Hz range.
Ken - NM9P, Elmer
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It has an impedance issue.Keep it attached to legacy gear . Rumors have it that Ten Tec Radios sound good with the D104 The hand held mike . Mine sounds terrible. Also there are better mikes out there than the 781 . (And it is not the price)
You cannot make any mike sound great if it does not reproduce the correct information.
No amount of EQ will do this .No tone switch 1 2 . NADA
And throughout this discussion nary a mention of where the transmit hi / low cut is set. Testing the "Quality" .
I guess the first thing we loose as we get older is our hearing..
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I guess the first thing we loose as we get older is our hearing.. "
Nope. It's not. My hearing is fine. I wish i could say the same for everything else though. :)
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Tim - W4TME, Customer Experience Manager
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