[TenTec] Orion Mic Woes - Sounds like RFI but Wasn't

[Pfizenmayer]

Mark - I don't know anything about a Heil Proset but I do know the Orion 
manual as printed is wrong - there should be an addenda sheet somewhere in 
your manual - but basically the addenda sheet says as follows-


" Please refer to page 10 of the manual . Disregard the wiring diagram for 
microphones as shown in fig 2-4.Use fig 2-5 for proper microphone wiring 
diagram

Please note: The microphone cable shield must be tied to the transcievers 
microphone connector shell. This is normally done by clamping the shield 
runner under the strain relief of the connector. Refer to fig 2-5. Ten_Tec 
microphones and the Heil /TenTec Studio one R9625 sold by Ten_Tec are 
already wired as such - many cables (such as other Heil cables) are NOT"

Maybe that will help - I know I had to rewire my D104 that I used on my TR7 
for 25 years to get it to work with the Orion and went thru some diddling 
until I got it to work !!

 My notes in my manual say-

1 is mic hot
2 is mic low
3 is PTT hot (other side goes to mic case )ie tieing 3 to mic shell actuates 
PTT
4 is 9v for electret

73 de Hank K7HP
----- Original Message ----- 
From: <k8vf_mark at centurytel.net>
To: <tentec at contesting.com>
Sent: Friday, September 01, 2006 9:12 PM
Subject: Re: [TenTec] Orion Mic Woes - Sounds like RFI but Wasn't


>I just got an Orion which I bought used.
>
> In an effort to be ready, I took one of my 4 mics used on my Omni VI, and 
> V,
> and Paragon II, and removed the shield from  pin 2 and attached it to the
> connector case.
>
> Mic is unuseable. On Dummy LOAD. This is not an rf issue here.
>
> Put the shield back on pin 2 where it was on all of my other TT rigs, 
> sounds
> fine.
>
> The Ten Tec model 700 I have does not have the shield to the case, it 
> works
> fine.
>
> My Heil proset sounds terrible. I moved the shield from pin 2 to the
> connector case, still sounds terrible.
>
> Again, all of this is on the dummy load.
>
>
> A question on mic cables.
>
> Except for a D-104, all mics I have seen have 3 wires plus shield.
> Usually white for mic audio, red and black (or blue) for PTT and shield is
> mic ground.
>
> I dont recall ever seeing a separate shield that is not mic audio return.
>
> My Ten Tec mic does not have this extra wire, nor does my MC-50.
>
> What procedure should we use with 3 wires plus shield(mic return) mics?
> In my reading on this issue, I dont get a definitive answer. (possible 
> I've
> missed something).
>
> I just want the Heil Proset to work on the Orion like it has on many other
> rigs.
>
> Thanks in advance.
>
> Mark
>
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