[TenTec] Question regarding Omni VI+ on SSB

Bill NY9H ny9h at arrl.net
Thu Nov 25 11:53:09 EST 2004


if you use the shure 444 or similar non-electret mic ,  just plug it in,,,,

i will work great

bill

At 08:44 AM 11/25/2004, you wrote:

>Thanks to all you guys who responded to my query about the best mic setup
>for the Omni 6 --- one more thing --- the Tentec mic is amplified (because
>it uses a battery) --- does that mean I should try and use  some kind of
>amplification ahead of the radio if I want to try a Heil element or a D104
>or a Shure 444? (I have all three mics). By the way, Happy Thanksgiving to
>All.
>
>Thanks,
>Jeff (KX2P)
>
>
>----- Original Message -----
>From: "Jim Brown" <jim at audiosystemsgroup.com>
>To: <tentec at contesting.com>
>Sent: Wednesday, November 24, 2004 10:40 PM
>Subject: Re: [TenTec] Question regarding Omni VI+ on SSB
>
>
> > On Wed, 24 Nov 2004 18:27:11 -0500, Jeff Frank wrote:
> >
> > >ll you guys who report about the great audio reports you receive on ssb
> > >with the Omni 6 series please tell me what microphones or microphone
> > hook
> > >ups you are using.
> >
> > Ah -- you bring up a very interesting defect in the design of the Ten Tec
>rigs.
> > You can't use a "flat" mic with them, you need to use one that has a
>"hyped"
> > high end. That's what the Heil mics do. A good mic sounds really dull and
> > bassy on a Ten Tec radio.
> >
> > I use an RE-27, which is a pretty flat mic (and a damn good one) with
>mine.
> > But to make it sound good, I had to stick a rather small cap in series
>with it
> > to drastically roll off the low end (-3 dB at roughly 2 kHz). It is absurd
>that it
> > should be necessary to do that, but it is. This is a "band-aid," but it
>works. I
> > even have an audio file that NY9H recorded off the air several months ago
> > on 20 meters from Chicago, when I was operating this rig at W6BX, a 2,000
> > mile path. It's this mic, the cap, and the Omni V. I could email the file
>if
> > anyone cares.
> >
> > The Shure 444 and mics like it have the hyped high end that sounds pretty
> > good with the Omni family of radios. I bought one for that reason. BTW --
> > there's no good reason to spend money on a Heil mic to get that sound -- a
> > used 444, $30 on EBay, will sound at least as good as a Heil. For that
> > matter, I bought three Plantronics earsets for $5 each at a hamfest last
>year.
> > They get MUCH better reports on my 746 than a Heil does on my K2.  You
> > can buy the Plantronics earsets (earphone plus mic) for $25 - $40 brand
> > new at computer stores.
> >
> > Now, you say, why in the world would you use an RE-27 on a ham rig?
> > Simple. I'm in the pro audio biz and own a lot of very good mics, but very
>few
> > dynamic mics. Also, most dynamic mics have proximity effect, which boosts
> > the low end (makes them muddy) when you close-talk them).  I didn't have a
> > dedicated ham mic, needed one to use with the Omni V I had just bought,
> > and the RE-27 came the closest to what should work well. It is a dynamic
>(I
> > only have three types) it  has no proximity effect because it is a
>variable-D
> > cardioid, and it has a lot of output.  Isn't it serious overkill?  If I
>had to buy it,
> > yes. But if I have several laying around, no.
> >
> >
> > Jim Brown  K9YC
> >
> >
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> > TenTec at contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
>
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