[TenTec] Re: TenTec digest, Vol 1 #264 - 15 msgs

Fri, 1 Mar 2002 11:22:30 -0500

Ten Tec 705 or a D 104 non amplified work great.  Also the small banana
electrovoice mics work well.

Rick K8RLW
----- Original Message -----
From: <tentec-request@contesting.com>
To: <tentec@contesting.com>
Sent: Friday, March 01, 2002 11:29 AM
Subject: TenTec digest, Vol 1 #264 - 15 msgs

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Today's Topics:

   1. Re: Omni 6+ accessories (Jeff Peacock)
   2. RE: Omni 6+ accessories (Simmons, Reid W)
   3. Re: Orion prototype (Jim Reid)
   4. IC part types - was Orion prototype (Duane Grotophorst)
   5. PegII and JupII... (Bill Ames)
   6. Re: Orion prototype (Robert & Linda McGraw K4TAX)
   7. Omni V audio monitor level (Mark Erbaugh)
   8. Re: Omni V audio monitor level (Jeff Peacock)
   9. Crystal Filter For Sale (Ronnie Kelley)
  10. WTB: Jupiter (k1oj (DitDit))
  11. RE: Omni V audio monitor level (Frank Ayers)
  12. Re: Omni V audio monitor level (Robert & Linda McGraw K4TAX)
  13. Corsair audio (Ronald Hands)
  14. Ten-Tec 218 Crystal Filter **SOLD** (Ronnie Kelley)
  15. Re: mikes  smikes (Bill Steffey)

--__--__--

Message: 1
From: "Jeff Peacock" <ve3ios@servers.ca>
To: <vsantis@earthlink.net>, "Tentec \(E-mail\)" <tentec@contesting.com>
Subject: Re: [TenTec] Omni 6+ accessories
Date: Thu, 28 Feb 2002 19:44:54 -0500
Organization: www.middlesexdetectorsales.ca

I bet they will sell more now due to the fact that more of the Omni series
will be on the secondary market for those that are upgrading. The new users
will want all the filters they previuosly only dreamt about having including
the rig.
Jeff
ve3ios
----- Original Message -----
From: "Vincent A. Santis" <vsantis@earthlink.net>
To: "Tentec (E-mail)" <tentec@contesting.com>
Sent: Thursday, February 28, 2002 7:39 PM
Subject: [TenTec] Omni 6+ accessories

> Hi,
>
> Does anyone know if the filters for the Omni 6+ will continue to be
available now that the rig is discontinued?
> Thanks,
>
> Vince Santis,N1VS
> Winsted, CT
> NEQRP # 598
> PRP-L # 2372
> FISTS# 8053
> CC # 1161
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
>

--__--__--

Message: 2
From: "Simmons, Reid W" <reid.w.simmons@intel.com>
To: "'vsantis@earthlink.net'" <vsantis@earthlink.net>,
   "Tentec (E-mail)" <tentec@contesting.com>
Subject: RE: [TenTec] Omni 6+ accessories
Date: Thu, 28 Feb 2002 17:11:12 -0800

Vince;

If not, there are always the INRAD filters.

Reid, K7YX

-----Original Message-----
From: Vincent A. Santis [mailto:vsantis@earthlink.net]
Sent: Thursday, February 28, 2002 4:39 PM
To: Tentec (E-mail)
Subject: [TenTec] Omni 6+ accessories

Hi,

Does anyone know if the filters for the Omni 6+ will continue to be
available now that the rig is discontinued?
Thanks,

Vince Santis,N1VS
Winsted, CT
NEQRP # 598
PRP-L # 2372
FISTS# 8053
CC # 1161

_______________________________________________
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http://lists.contesting.com/mailman/listinfo/tentec

--__--__--

Message: 3
From: "Jim Reid" <jimr.reid@verizon.net>
To: "Duane Grotophorst" <n9dg@yahoo.com>, "Ron McKean"
<wd5fun@earthlink.net>,
   "N1EU" <n1eu@yahoo.com>, <tentec@contesting.com>
Subject: Re: [TenTec] Orion prototype
Date: Thu, 28 Feb 2002 15:58:48 -1000

Duane has suggested:

> Nothing in those two sentences implies that the main
> RX will not be DSP based, in fact plainly says it will
> have DSP. I interpreted his comment to reflect that
> there will be a mix of analog elements and DSP in the
> IF chain. Much the same as Ten Tec's DSP radios to
> date already are. This makes good sense because 130+
> dB dynamic range A/D devices are rather rare or at
> least very expensive. I'm sure that much of the
> top-notch performance will come from choosing more
> capable analog devices in the RF/IF chain before the
> signal gets digitized.

The RX-340 manual lists manufacturer's part numbers for
the D/A and A/D converters,  surface mount IC's, but
not a manufacturer's name.  Part numbers are:

A/D on boaard 81790,  AD7872JN

D/A,  same board,  AD7840JN  .

Does this info tell us anything about the dynamic range
of these devices in the 340,  if you can ID the manufacturer?

> There are several really low phase noise synthesizer
> chips out there already that rival crystals.

The synthesizer chip in the 340 is Motorola part
MC145170D1;  is this the same as the Pegasus/K2?
The first LO in the 340 is a three loop architecture
synthesizer.  There are two 10 MHz TCVCXO crystals
on this board (81772).  They have manufacturer's
part numbers of VTXO14010G and the other
DFA20-HAV10MHZA1  if these part numbers will shed
any more light on what is going on,  hi.

I could post the circuit description of the entire 81772
board from the 340 manual,  if that would be of interest/
help to this discussion of what we might see in the Orion.

> Did you realize that the K2 and Pegasus/Jupiter share
> the same Motorola synthesizer chip? One has exemplary
> phase noise specs and the other is mediocre by today's
> standards.

73,  Jim KH7M (and using the Pegasus/RX-340/N4PY system)

--__--__--

Message: 4
Date: Thu, 28 Feb 2002 20:10:58 -0800 (PST)
From: Duane Grotophorst <n9dg@yahoo.com>
To: Jim Reid <jimr.reid@verizon.net>, tentec@contesting.com
Subject: [TenTec] IC part types - was Orion prototype

Wow, wasn't expecting this to turn into a reverse
engineering exercise but here's a bit more from me.
For what it's worth though I suspect little if any of
the actual circuits of the RX-340, Pegasus etc will be
directly incorporated into the main RX of the Orion.
Scott even said so by describing it as a completely
new design. Nevertheless I believe that we'll
ultimately see considerable design similarities using
a newer more powerful generation of core IC's.

Additional comments in-line below preceeded with
"N9DG:".

--- Jim Reid <jimr.reid@verizon.net> wrote:
The RX-340 manual lists manufacturer's part numbers
for
the D/A and A/D converters,  surface mount IC's, but
not a manufacturer's name.  Part numbers are:

A/D on boaard 81790,  AD7872JN

D/A,  same board,  AD7840JN  .

Does this info tell us anything about the dynamic
range
of these devices in the 340,  if you can ID the
manufacturer?

N9DG:
These are Analog Devices part numbers, for more
information about them see:
http://products.analog.com/products/buildButtons.asp?product=AD7872
http://products.analog.com/products/buildButtons.asp?product=AD7840

I can't really offer any definitive comments about the
dynamic range of these devices in and of themselves.
However based on the data from the two links above it
looks to me that the much of the overall dynamic range
performance of the RX-340 is established well before
the A/D-DSP work even begins. As I'm sure is the case
for the other TT IF DSP radios as well.

--- Jim Reid <jimr.reid@verizon.net> wrote:
The synthesizer chip in the 340 is Motorola part
MC145170D1;  is this the same as the Pegasus/K2?

N9DG:
Probably not exactly the same but is indeed a very
close relative, on the K2 schematic it is listed
simply as a MC145170. Admittedly I'm not 100% sure
about the Pegasus/Jupiter (don't have a schematic and
I didn't really want to take it that far apart to look
either :-) ) but the both the RX-320 and RX-350 also
use the MC145170 series PLL chip. So I think it would
be a pretty safe bet that the Pegasus/Jupiter do too.

--- Jim Reid <jimr.reid@verizon.net> wrote:
The first LO in the 340 is a three loop architecture
synthesizer.  There are two 10 MHz TCVCXO crystals
on this board (81772).  They have manufacturer's
part numbers of VTXO14010G and the other
DFA20-HAV10MHZA1  if these part numbers will shed
any more light on what is going on,  hi.

N9DG:
No doubt the actual crystal oscillators do play a
sizeable role in the phase noise performance. I didn't
actually look for any data on these parts, have no
previous frame of reference to draw any kind of
conclusions though, ... ok so I'm being lazy.

Duane
N9DG

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--__--__--

Message: 5
From: "Bill Ames" <bames@aob.com>
To: <tentec@contesting.com>
Date: Fri, 1 Mar 2002 07:25:13 -0500
Subject: [TenTec] PegII and JupII...

...well, if TT is doing a totally new design to give us Orion then they have
a grate opportunity to include new PegIIs and JupIIs in the mix. If they
think about it, they could design a new basic configuration that would,
depending on how the PC board is populated, support Orion AND PegII AND
JupII! By doing this they would save costs as they would be able to purchase
greater quantities of the common components. Think of it as building
different types of cars on a common chassis.

Bill Ames
KB1LG

Bill Ames
Analytica of Branford, Inc.
29 Business Park Drive
Branford, CT 06405
PH: (203)488-8899 xt 337

--__--__--

Message: 6
Date: Fri, 01 Mar 2002 07:29:46 -0600
From: Robert & Linda McGraw K4TAX <RMcGraw@Blomand.Net>
Subject: Re: [TenTec] Orion prototype
To: Jim Reid <jimr.reid@verizon.net>, Duane Grotophorst <n9dg@yahoo.com>,
   Ron McKean <wd5fun@earthlink.net>, N1EU <n1eu@yahoo.com>,
   tentec@contesting.com

These are Analog Devices.

73
Bob K4TAX

----- Original Message -----
From: "Jim Reid" <jimr.reid@verizon.net>
To: "Duane Grotophorst" <n9dg@yahoo.com>; "Ron McKean"
<wd5fun@earthlink.net>; "N1EU" <n1eu@yahoo.com>; <tentec@contesting.com>
Sent: Thursday, February 28, 2002 7:58 PM
Subject: Re: [TenTec] Orion prototype

> Duane has suggested:
>
> > Nothing in those two sentences implies that the main
> > RX will not be DSP based, in fact plainly says it will
> > have DSP. I interpreted his comment to reflect that
> > there will be a mix of analog elements and DSP in the
> > IF chain. Much the same as Ten Tec's DSP radios to
> > date already are. This makes good sense because 130+
> > dB dynamic range A/D devices are rather rare or at
> > least very expensive. I'm sure that much of the
> > top-notch performance will come from choosing more
> > capable analog devices in the RF/IF chain before the
> > signal gets digitized.
>
> The RX-340 manual lists manufacturer's part numbers for
> the D/A and A/D converters,  surface mount IC's, but
> not a manufacturer's name.  Part numbers are:
>
> A/D on boaard 81790,  AD7872JN
>
> D/A,  same board,  AD7840JN  .
>
> Does this info tell us anything about the dynamic range
> of these devices in the 340,  if you can ID the manufacturer?
>
> > There are several really low phase noise synthesizer
> > chips out there already that rival crystals.
>
> The synthesizer chip in the 340 is Motorola part
> MC145170D1;  is this the same as the Pegasus/K2?
> The first LO in the 340 is a three loop architecture
> synthesizer.  There are two 10 MHz TCVCXO crystals
> on this board (81772).  They have manufacturer's
> part numbers of VTXO14010G and the other
> DFA20-HAV10MHZA1  if these part numbers will shed
> any more light on what is going on,  hi.
>
> I could post the circuit description of the entire 81772
> board from the 340 manual,  if that would be of interest/
> help to this discussion of what we might see in the Orion.
>
> > Did you realize that the K2 and Pegasus/Jupiter share
> > the same Motorola synthesizer chip? One has exemplary
> > phase noise specs and the other is mediocre by today's
> > standards.
>
> 73,  Jim KH7M (and using the Pegasus/RX-340/N4PY system)
>
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>

--__--__--

Message: 7
From: "Mark Erbaugh" <mark@microenh.com>
To: <tentec@contesting.com>
Date: Fri, 1 Mar 2002 08:42:20 -0500
Subject: [TenTec] Omni V audio monitor level

I just got a new Heil ProSet Plus headset / microphone. I tried to enable
the audio monitor on my Omni V to hear how it sounds. With the audio monitor
level at max, I had to crank the mic gain up to where the ALC light was on
pretty solid before I could hear myself in the headphones. Is this normal?
Does the AF Gain setting affect the monitor level?

73,
Mark

--__--__--

Message: 8
From: "Jeff Peacock" <ve3ios@servers.ca>
To: "Mark Erbaugh" <mark@microenh.com>, <tentec@contesting.com>
Subject: Re: [TenTec] Omni V audio monitor level
Date: Fri, 1 Mar 2002 08:57:54 -0500
Organization: www.middlesexdetectorsales.ca

When I had my Omni V I had the same trouble. In fact now that I am using the
Jupiter I have replaced the Heil with a high quality headphone and a desk
mic. The Heil headphones seem to drop the audio output down and are also
very muddy. I thought the Heil was great until I got the Jupiter then found
out what I was missing. The monitor booms out the headphones now.
Jeff
ve3ios
----- Original Message -----
From: "Mark Erbaugh" <mark@microenh.com>
To: <tentec@contesting.com>
Sent: Friday, March 01, 2002 8:42 AM
Subject: [TenTec] Omni V audio monitor level

> I just got a new Heil ProSet Plus headset / microphone. I tried to enable
> the audio monitor on my Omni V to hear how it sounds. With the audio
monitor
> level at max, I had to crank the mic gain up to where the ALC light was on
> pretty solid before I could hear myself in the headphones. Is this normal?
> Does the AF Gain setting affect the monitor level?
>
> 73,
> Mark
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
>

--__--__--

Message: 9
From: "Ronnie Kelley" <kelleyr@snowhill.com>
Reply-to: kelleyr@snowhill.com
To: TenTec@contesting.com
Date: Fri, 1 Mar 2002 08:34:05 +0600
Subject: [TenTec] Crystal Filter For Sale

For Sale: Ten-Tec Model 218 Crystal Filter 1.8 kHz bandwidth 8 pole for SSB
or CW
use. $60.00 includes shipping.

WD4OSE, Ronnie

--__--__--

Message: 10
From: "k1oj \(DitDit\)" <k1oj@ditdit.com>
To: <tentec@contesting.com>
Date: Fri, 1 Mar 2002 08:59:46 -0600
Subject: [TenTec] WTB: Jupiter

Howdy all,
Does anyone have a Jupiter for sale?

OJ---K1OJ
May the Morse be with you!
DitDit

--__--__--

Message: 11
To: tentec@contesting.com
CC:
From: "Frank Ayers" <w2fca@qsl.net>
Subject: RE: [TenTec] Omni V audio monitor level
Date: Fri,  1 Mar 2002 07:39:46 -0800

Hi
I use a Heil Proset with a number 4 mic and have no problem hearing
myself. I have used the monitor to check the level and sound
of a DVK in comparison to my mic with the monitor level less
than half way.

Frank
W2FCA

>--- Original Message ---
>From: "Mark Erbaugh" <mark@microenh.com>
>I just got a new Heil ProSet Plus headset / microphone. I tried
to enable
>the audio monitor on my Omni V to hear how it sounds. With the
audio monitor
>level at max, I had to crank the mic gain up to where the ALC
light was on
>pretty solid before I could hear myself in the headphones. Is
this normal?

--__--__--

Message: 12
Date: Fri, 01 Mar 2002 09:39:47 -0600
From: Robert & Linda McGraw K4TAX <RMcGraw@Blomand.Net>
Subject: Re: [TenTec] Omni V audio monitor level
To: Jeff Peacock <ve3ios@servers.ca>, Mark Erbaugh <mark@microenh.com>,
   tentec@contesting.com

Just as a comment, and I have nothing against Heil as I own a couple of
their mikes and an mike/headset combo, but I've never found their products
to be as "fantastic" as they are reported to be.  They are good, but perhaps
no better than the average while costing a good bit more.

I've found that some products work better on one radio while others work
better on another radio. As the old motto goes: "What's good for the goose
is not necessarily good for the gander."

In summary, mikes and headphones must be tailored for the radio and the
user.  A generic fit is simply a generic fit.
73
Bob K4TAX

----- Original Message -----
From: "Jeff Peacock" <ve3ios@servers.ca>
To: "Mark Erbaugh" <mark@microenh.com>; <tentec@contesting.com>
Sent: Friday, March 01, 2002 7:57 AM
Subject: Re: [TenTec] Omni V audio monitor level

> When I had my Omni V I had the same trouble. In fact now that I am using
the
> Jupiter I have replaced the Heil with a high quality headphone and a desk
> mic. The Heil headphones seem to drop the audio output down and are also
> very muddy. I thought the Heil was great until I got the Jupiter then
found
> out what I was missing. The monitor booms out the headphones now.
> Jeff
> ve3ios
> ----- Original Message -----
> From: "Mark Erbaugh" <mark@microenh.com>
> To: <tentec@contesting.com>
> Sent: Friday, March 01, 2002 8:42 AM
> Subject: [TenTec] Omni V audio monitor level
>
>
> > I just got a new Heil ProSet Plus headset / microphone. I tried to
enable
> > the audio monitor on my Omni V to hear how it sounds. With the audio
> monitor
> > level at max, I had to crank the mic gain up to where the ALC light was
on
> > pretty solid before I could hear myself in the headphones. Is this
normal?
> > Does the AF Gain setting affect the monitor level?
> >
> > 73,
> > Mark
> >
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
> >
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>

--__--__--

Message: 13
Date: Fri, 01 Mar 2002 10:56:15 -0800
From: Ronald Hands <ronald.hands@sympatico.ca>
CC: tentec@contesting.com
Subject: [TenTec] Corsair audio

   There seems to have been a fair bit of discussion about microphones
lately, which leads me to ask: is there any consensus on a particularly
good desk mike for the Corsair II?
    I've had my Corsair for three or four years, but use it mainly for
CW so I haven't bothered about microphones.  However, I've recently had
occasion to crank it up on SSB a bit more often and have been testing
different microphones -- and growing more confused by the minute.
    Did a test the other night between a Shure 444 and a Drake hand
mike.  Everybody said the 444 was best.  Then I did a test today with a
friend who knows my voice.  Used three mikes: the 444, the Drake and a
TenTec 701 hand mike.  The verdict was that the Drake was far superior,
the 444 came second and the Ten Tec was a distant third.
    Obviously I need more choices.  Any recommendations?

-- Ron  VE3SP

--__--__--

Message: 14
From: "Ronnie Kelley" <kelleyr@snowhill.com>
Reply-to: kelleyr@snowhill.com
To: TenTec@contesting.com
Date: Fri, 1 Mar 2002 10:07:00 +0600
Subject: [TenTec] Ten-Tec 218 Crystal Filter **SOLD**

The 218 crystal filter has been sold.

WD4OSE

--__--__--

Message: 15
Date: Fri, 01 Mar 2002 10:26:49 -0600
To: Ronald Hands <ronald.hands@sympatico.ca>
From: Bill Steffey <ny9h@arrl.net>
Subject: Re: [TenTec] mikes  smikes
Cc: tentec@contesting.com

I'll bet the Drake had a lot more low frequency response, you know the kind
of bass response that makes you sound like you're in person. You know the
bass response that carries little of the "information " needed for
articulation.and intellegence.  So if you want great audio use a flat
dynamic or electret... if you want to boost articulation get a mike
(electret or ceramic) with a rising or peaking hi freq response .
http://www.shure.com/pdf/discontinued/526t.pdf
That is just what Bob Heil did. Look at the freq response of a Shure 444 ,
and the Heil elements.... very similiar.
Bob didn't invent the good mic ; he figured out how to sell a mic with an
appropriate frequency response to hams.

Check out the Shure web site and what the freq responses look like on the
450 / 526 and others, then buy a replacement element and roll your own. Buy
enough elements, and maybe Shure will discover they could sell a few
thousand mikes. Shure would have to make a new design that looks like
something newer than the 50s or 60s...

  My good friends at Shure Bros just didn't care about the ham market, too
small I guess.
  For Bob it's a great market !!!

At 12:56 PM 3/1/02, Ronald Hands wrote:
>   There seems to have been a fair bit of discussion about microphones
> lately, which leads me to ask: is there any consensus on a particularly
> good desk mike for the Corsair II?
>    I've had my Corsair for three or four years, but use it mainly for CW
> so I haven't bothered about microphones.  However, I've recently had
> occasion to crank it up on SSB a bit more often and have been testing
> different microphones -- and growing more confused by the minute.
>    Did a test the other night between a Shure 444 and a Drake hand
> mike.  Everybody said the 444 was best.  Then I did a test today with a
> friend who knows my voice.  Used three mikes: the 444, the Drake and a
> TenTec 701 hand mike.  The verdict was that the Drake was far superior,
> the 444 came second and the Ten Tec was a distant third.
>    Obviously I need more choices.  Any recommendations?
>
>-- Ron  VE3SP
>
>
>
>_______________________________________________
>TenTec mailing list
>TenTec@contesting.com
>http://lists.contesting.com/mailman/listinfo/tentec

--__--__--

_______________________________________________
TenTec mailing list
TenTec@contesting.com
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End of TenTec Digest