I noticed that when I used the battery in the 705 (got it used) with my Omni
6+, it went dead in a short time. When I used the mike without the battery
the mike pulled the voltage down to around 4 volts or so (the Omni has a 470
ohm resistor in it to limit the current). This seems like too much current
draw. What does the list think?
Chuck, KE9UW
> -----Original Message-----
> From: tentec-bounces@contesting.com
> [mailto:tentec-bounces@contesting.com]On Behalf Of David S.McCallum
> Sent: Thursday, November 25, 2004 9:10 AM
> To: tentec@contesting.com
> Subject: Re: [TenTec] Question regarding Omni VI+ on SSB
>
>
> Jeff it's been a few years since I had OMNI 6+/or other TT rigs but had
> the desk mic and TT told me do not use the battery, it is suppose to be
> for other radios that require external power source. I remember when I
> had a battery in mine everyone said it sounded terrible. Happy
> Thanksgiving to you and good luck, Mac
>
> David S. McCallum/USAF RET./CMSGT/W7sac/4
> ----- Original Message -----
> From: "Jeff Frank" <jafrank@nyc.rr.com>
> To: "Jim Brown" <jim@audiosystemsgroup.com>; <tentec@contesting.com>
> Sent: Thursday, November 25, 2004 8:44 AM
> Subject: Re: [TenTec] Question regarding Omni VI+ on SSB
>
>
> 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@audiosystemsgroup.com>
> To: <tentec@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
> >
> >
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
>
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