[TenTec] TenTec Digest, Vol 26, Issue 76

[John L Merrill]

Jeff:
I think it depends on the noise. It does very well with car ignition noise
type impulses but for the most part it does little to others.

John N1JM

-----Original Message-----
From: tentec-bounces at contesting.com
[mailto:tentec-bounces at contesting.com]On Behalf Of Jeff Frank
Sent: Monday, February 28, 2005 8:36 PM
To: tentec at contesting.com
Subject: Re: [TenTec] TenTec Digest, Vol 26, Issue 76


With all this talk about not wanting to disable the Omni 6 noise blanker ...
I have to say that my Omni 6 noise blanker doesn't seem to do anything at
all and I have no Inrad filter.  My radio just came back from some repairs
and a new alignment at TT so I doubt there is anything wrong with it. Don't
get me wrong, I'm very happy with the Omni 6, it's just that I've never seen
any effects when I turn the noise blanker knob. Maybe I don't know how to
use the TT NB, but the noise blanker on my FT-1000 sure makes a difference.
Anybody out there had any positive results from the NB on the Omni 6? I'd
sure like to hear about it.

Jeff - KX at P



----- Original Message -----
From: <tentec-request at contesting.com>
To: <tentec at contesting.com>
Sent: Monday, February 28, 2005 7:28 AM
Subject: TenTec Digest, Vol 26, Issue 76


> Send TenTec mailing list submissions to
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> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of TenTec digest..."
>
>
> Today's Topics:
>
>    1. Orion Power Meter Pegging (Mark Erbaugh)
>    2. Re: Orion Power Meter Pegging (Martin AA6E)
>    3. Re: OMNI VI/VI+ Roofing Filter Mod. vs NB Function and FM/FSK
>       Mode Operation (Clark Savage Turner)
>    4. Re: OMNI VI/VI+ Roofing Filter Mod. vs NB Function andFM/FSK
>       Mode Operation (John L Merrill)
>    5. Re: Orion Power Meter Pegging (Steve Baron - KB3MM)
>    6. Re: Narrow Orion ssb filter (Richard Detweiler)
>    7. Re: Inrad Roofing filter board in Omni VI (Ken Brown)
>    8. TEn-Tec Orion - Band Data Connector
>       (=?windows-1250?Q?Milan_G=FCtter?=)
>    9. Re: For Sale (Ynkedragon at aol.com)
>   10. Re: Inrad Roofing filter board in Omni VI (Chuck Guenther)
>   11. Re: For Sale (Vince Santis)
>   12. Re: TEn-Tec Orion - Band Data Connector (Wes Attaway (N5WA))
>   13. Re: TEn-Tec Orion - Band Data Connector (Wes Attaway (N5WA))
>   14. Re: TEn-Tec Orion - Band Data Connector
>       (=?windows-1250?Q?Milan_G=FCtter=2C_OK1FM?=)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 27 Feb 2005 18:18:19 -0500
> From: "Mark Erbaugh" <mark at microenh.com>
> Subject: [TenTec] Orion Power Meter Pegging
> To: <tentec at contesting.com>
> Message-ID: <000601c51d22$bcb577b0$3884fea9 at p2000>
> Content-Type: text/plain; charset="iso-8859-1"
>
> I just made my first CW QSO with the Orion where I ran full (100w) power.
I
> noticed that at the beginning of a transmission, the meter would peg as I
> could hear it hitting the stop.  It quickly dropped back to 100w. I was
> transmitting into my triband beam which has a pretty low (< 1.5) SWR.  My
> rise time was set at 8 ms, I was keying at 16 WPM.
>
> 73,
> Mark
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sun, 27 Feb 2005 16:32:29 -0800 (PST)
> From: Martin AA6E <msembx-aa6e at yahoo.com>
> Subject: Re: [TenTec] Orion Power Meter Pegging
> To: tentec at contesting.com
> Message-ID: <20050228003229.19057.qmail at web81406.mail.yahoo.com>
> Content-Type: text/plain; charset=us-ascii
>
> Mark,
>
> The meter is driven by a D-to-A converter from the Orion CPU, so it's
> displaying whatever value the computer wants.  Hopefully it has
> something to do with actual power, but you don't know!
>
> Also, the meter is terribly underdamped mechanically, so it overshoots
> by at least 10% when you key the transmitter.  I don't see mine quite
> pegging itself, but it comes close. TT could compensate for this in
> firmware if they wanted.  Think of it, a menu setting for meter time
> constant... Maybe a different one for each operating mode...Ouch.
>
> 73, Martin AA6E
>
> --- Mark Erbaugh <mark at microenh.com> wrote:
>
> > I just made my first CW QSO with the Orion where I ran full (100w)
> > power. I
> > noticed that at the beginning of a transmission, the meter would peg
> > as I
> > could hear it hitting the stop.  It quickly dropped back to 100w. I
> > was
> > transmitting into my triband beam which has a pretty low (< 1.5) SWR.
> >  My
> > rise time was set at 8 ms, I was keying at 16 WPM.
> >
> > 73,
> > Mark
> >
> >
> > _______________________________________________
> > TenTec mailing list
> > TenTec at contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
>
>
>
> ------------------------------
>
> Message: 3
> Date: Sun, 27 Feb 2005 17:16:29 -0800
> From: Clark Savage Turner <csturner at kcbx.net>
> Subject: Re: [TenTec] OMNI VI/VI+ Roofing Filter Mod. vs NB Function
> and FM/FSK Mode Operation
> To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
> Message-ID: <600F788D-8926-11D9-BED0-0003937A2CB6 at kcbx.net>
> Content-Type: text/plain; charset=US-ASCII; format=flowed
>
> Thanks for the info regarding the NB, Dave.  I think you pioneered (I
> recall some early correspondence with you on this!) the roofing filter
> ideas for the OMNI VI.  I appreciate it.
>
> On Feb 27, 2005, at 8:03 AM, Dave Bowker wrote:
> >
> > BTW: The FM receive mode is also inoperative with the roofing filter
> > mod. because of the narrow
> > bandwidth preceding the FM receiver section;  FSK mode is inoperative
> > because of the roofing
> > filter(s) incompatible offset(s).
>
> One note to this (especially to new guys), the Inrad mod itself does
> NOT render FM or FSK inoperative.  If you don't engage the Inrad
> roofing filter by pressing the NAR button, FM and FSK are fine, since
> you allow the wider roofing filter to stay in line.  The NAR button
> selects and deselects the additional narrow roofing filter according to
> your preference.
>
> Clark
> WA3JPG
>
>
>
> ------------------------------
>
> Message: 4
> Date: Sun, 27 Feb 2005 20:13:13 -0500
> From: "John L Merrill" <jmerrill1 at adelphia.net>
> Subject: Re: [TenTec] OMNI VI/VI+ Roofing Filter Mod. vs NB Function
> andFM/FSK Mode Operation
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Message-ID: <PLEGIMGKMLFLFHFMJIOEOEEECJAA.jmerrill1 at adelphia.net>
> Content-Type: text/plain; charset="us-ascii"
>
> INRAD claims the 600hz roofing will not render FSK useless. You can still
> use fsk but I can't imagine it passes the high tones too well.
>
> John N1JM
>
> -----Original Message-----
> From: tentec-bounces at contesting.com
> [mailto:tentec-bounces at contesting.com]On Behalf Of Clark Savage Turner
> Sent: Sunday, February 27, 2005 8:16 PM
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] OMNI VI/VI+ Roofing Filter Mod. vs NB Function
> andFM/FSK Mode Operation
>
>
> Thanks for the info regarding the NB, Dave.  I think you pioneered (I
> recall some early correspondence with you on this!) the roofing filter
> ideas for the OMNI VI.  I appreciate it.
>
> On Feb 27, 2005, at 8:03 AM, Dave Bowker wrote:
> >
> > BTW: The FM receive mode is also inoperative with the roofing filter
> > mod. because of the narrow
> > bandwidth preceding the FM receiver section;  FSK mode is inoperative
> > because of the roofing
> > filter(s) incompatible offset(s).
>
> One note to this (especially to new guys), the Inrad mod itself does
> NOT render FM or FSK inoperative.  If you don't engage the Inrad
> roofing filter by pressing the NAR button, FM and FSK are fine, since
> you allow the wider roofing filter to stay in line.  The NAR button
> selects and deselects the additional narrow roofing filter according to
> your preference.
>
> Clark
> WA3JPG
>
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
>
>
> ------------------------------
>
> Message: 5
> Date: Mon, 28 Feb 2005 01:01:22 -0000
> From: "Steve Baron - KB3MM" <SteveBaron at StarLinX.com>
> Subject: Re: [TenTec] Orion Power Meter Pegging
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Message-ID: <006401c51d32$5b2a5b40$9b08960c at sfb>
> Content-Type: text/plain; charset="iso-8859-1"
>
> What did steady state power indicate?
>
> ----- Original Message -----
> From: "Mark Erbaugh" <mark at microenh.com>
> To: <tentec at contesting.com>
> Sent: Sunday, February 27, 2005 23:18
> Subject: [TenTec] Orion Power Meter Pegging
>
>
> > I just made my first CW QSO with the Orion where I ran full (100w)
power.
> I
> > noticed that at the beginning of a transmission, the meter would peg as
I
> > could hear it hitting the stop.  It quickly dropped back to 100w. I was
> > transmitting into my triband beam which has a pretty low (< 1.5) SWR.
My
> > rise time was set at 8 ms, I was keying at 16 WPM.
> >
> > 73,
> > Mark
> >
> >
> > _______________________________________________
> > TenTec mailing list
> > TenTec at contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
>
>
>
>
> ------------------------------
>
> Message: 6
> Date: Sun, 27 Feb 2005 19:45:18 -0600
> From: "Richard Detweiler" <rdetweil at hotmail.com>
> Subject: Re: [TenTec] Narrow Orion ssb filter
> To: tentec at contesting.com
> Message-ID: <BAY1-F5B22ECB6636AD187A8B52DF580 at phx.gbl>
> Content-Type: text/plain; format=flowed
>
> Hi Barry,
>
> I can usually get the 1Khz filter to engage on SSB,
>
> Using +PBT of 450
>
> and BW of about 1400.
>
> have to be right on frequency, but it can get that narrow for me.
>
> Best 73's
> Rich
> K5SF
>
>
>
>
> ------------------------------
>
> Message: 7
> Date: Sun, 27 Feb 2005 20:18:30 -1000
> From: Ken Brown <ken.d.brown at verizon.net>
> Subject: Re: [TenTec] Inrad Roofing filter board in Omni VI
> To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
> Message-ID: <4222B7B6.1080008 at verizon.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Hi Chuck,
>
> Based on your experience copying 5T0CW on 30 meters....
>
> "I had an experience yesterday, I'd like to share.  During a time when I
had strong line noise, some of the locals were working 5T0CW on 30 meters,
and I couldn't copy at all.  The Omni VI noise blanker helped, but not
enough.  Then I turned my NAR switch off ( which disengages both my narrow
IF filter-- INRAD 753-- and the 600 Hz roofing filter.  Now I could copy the
5T station!  The noise blanker was more effective in smoothing out the harsh
hiss of the line noise in this case.  When the line noise is not present, I
always have better copy with the NAR switch on."
>
> I would say that the answer to your question....
>
> "I've been considering dedicating the Omni VI to CW only by wiring the
> roofing filter so it is in line all the time (using the NAR switch in
> its normal mode). That would provide me with options in terms of CW
> selectivity (since I have the VI, not the VI+). Now I'm wondering if
> this would compromise my noise blanker. "
>
> ....is, yes, it would compromise your noise blanker.
>
> I wonder if the Inrad modification inserts the roofing filter in the
> wrong place? I think their choice of insertion point for the filter
> modification was made based on the ease of installation, and to make the
> modification more easily reversible. Many hams (particularly Ten-Tec
> cultists) do not want to make any irreversable modification to their
> radio, and a modification that seems too "drastic" would not sell as
> well as one that can be fairly easily plugged in, and unplugged later.
> By putting a narrow filter before the noise detector and the noise
> blanking switch, they have changed the functionality of the noise
> blanker. This could be because the noise pulses that trigger the noise
> blanker circuit are attenuated and stretched out in the time domain by
> the narrow filter.
>
> Looking at the schematic, I think that a better place to insert a
> roofing filter modification would be between T5 and T6. C20 could be
> removed, and the cables  to and from the add on board could solder to
> the PCB pads where C20 had been. I do not know what the impedance is at
> this point. So I cannot say whether a filter could be inserted there
> without some additional circuitry to get the impedance matching to the
> filter right. Likely there would need to be some gain to compensate for
> the filter loss, as is done in the Inrad modification (or so I have
heard).
>
> Putting the new roofing filter in place of C20 puts it behind only one
> more active gain stage, Q1, than where Inrad puts it. And this would
> also put it after the noise blanker, which is also where the FM detector
> gets it's feed. Like the Inrad mod location this also keeps it out of
> the TX signal path, so that it does not need to get switched in and out
> between TX and RX mode when operating SSB. Y2 would remain the filter
> that passes one sideband and rejects the other for SSB TX.
>
> I think your idea of a roofing filter that is in line all the time
> sounds like a good idea, if it is in the right place. You could use a CW
> bandwidth filter and the radio would no longer be usable for SSB, or you
> could use a SSB bandwidth filter and still have all modes, probably with
> some improvement in close spaced dynamic range. Perhaps not as much
> advantage as the Inrad modification since Q1 could be overdriven by
> strong signals make it through Y1.
>
> This is not intended to be a criticism of Inrad's roofing filter
> modification. I'm glad they have made their product available. I may buy
> one myself.  I'm just interested in discussing other possibilities.
>
> Another possibility, if you're willing to give up both SSB TX and RX
> capability, is to replace Y2 with a narrower filter (1.8 kHz or 1 kHz
> maybe), and put your narrowest filter (500 or 250 Hz) in the NAR option
> filter position.
>
> DE N6KB
>
>
>
> >
> >
>
>
>
>
> ------------------------------
>
> Message: 8
> Date: Mon, 28 Feb 2005 11:57:25 +0100
> From: =?windows-1250?Q?Milan_G=FCtter?= <ok1fm at ges.cz>
> Subject: [TenTec] TEn-Tec Orion - Band Data Connector
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Message-ID: <NLEKKLBCEDDEAHHFIKLCCEIPDMAA.ok1fm at ges.cz>
> Content-Type: text/plain; charset="windows-1250"
>
> Hi all,
>
> in ORION 565 AT manual I'am missing the description
> to Figure 2-17 - Band Data Connector.
>
> The PINs
> DIG RTN and AUX
> how they works?
>
> 73 Milan, OK1FM
> ok1fm at ges.cz
>
>
>
>
>
>
>
> ------------------------------
>
> Message: 9
> Date: Mon, 28 Feb 2005 06:31:58 EST
> From: Ynkedragon at aol.com
> Subject: Re: [TenTec] For Sale
> To: tentec at contesting.com
> Message-ID: <1da.371bfe98.2f545b2e at aol.com>
> Content-Type: text/plain; charset="US-ASCII"
>
>
> In a message dated 2/26/2005 17:27:06, vsantis at earthlink.net writes:
>
> << I have for sale an Idiom Press memory keyer. This keyer was built at
> Idiom Press.  Price shipped in CONUS $90.00 >>
>
> Is this the  K1 (4 buttons on top) or the K3 (6 buttons on top)?
>
> 73, Blair k3yd
>
>
>
> ------------------------------
>
> Message: 10
> Date: Mon, 28 Feb 2005 07:26:08 -0600
> From: "Chuck Guenther" <ni0c at earthlink.net>
> Subject: Re: [TenTec] Inrad Roofing filter board in Omni VI
> To: <tentec at contesting.com>
> Message-ID: <000a01c51d99$112275c0$bb24f404 at trees>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi, Ken
>
> Regarding placement of selectivity, your suggestion of replacing Y2 is
intriguing, although one would have to be very careful of the low end
rolloff in this filter. (George at INRAD has already found that the 2.4KHz
filter there causes some attenuation for low CW pitches.)
>
>  I think my main problem is one of being able to turn the roofer on and
off independently of the NAR filter, and that is only because I have the
Omni VI and not the VI+.  I'll probably set mine up to use one of the
following buttons to control the roofing filter: ATTN, Voice, or FM.
>
> 73,
> Chuck  NI0C
>
>
> ------------------------------
>
> Message: 11
> Date: Mon, 28 Feb 2005 08:52:22 -0500
> From: "Vince Santis" <vsantis at earthlink.net>
> Subject: Re: [TenTec] For Sale
> To: "'Discussion of Ten-Tec Equipment'" <tentec at contesting.com>
> Message-ID: <000201c51d9c$bc895e30$15eff504 at DJWXQ541>
> Content-Type: text/plain; charset="windows-1250"
>
> Hi Blair,
> Thanks for your note. I'm sorry it's sold.
> Thanks again
>
> Vince Santis, N1VS
> Winsted, CT 06098
>
>
> --
> No virus found in this outgoing message.
> Checked by AVG Anti-Virus.
> Version: 7.0.300 / Virus Database: 266.5.1 - Release Date: 2/27/2005
>
>
>
>
> ------------------------------
>
> Message: 12
> Date: Mon, 28 Feb 2005 08:49:46 -0600
> From: "Wes Attaway (N5WA)" <n5wa at sport.rr.com>
> Subject: Re: [TenTec] TEn-Tec Orion - Band Data Connector
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Message-ID: <CKENKPPFHOJMGOBAPGAJAEODDKAA.n5wa at sport.rr.com>
> Content-Type: text/plain; charset="windows-1250"
>
> The pin-outs, looking at back of connector, per Fig. 2-17:
>
> 80M   160M   GND
>
> 30M   40M     60M
>
> 15M   17M     20M
>
> DIG
> RTN   10M     12M
>
> NC     AUX     +13.8V
>
>
>
> -----Original Message-----
> From: tentec-bounces at contesting.com
[mailto:tentec-bounces at contesting.com]On
> Behalf Of Milan G?tter
> Sent: Monday, February 28, 2005 4:57 AM
> To: Discussion of Ten-Tec Equipment
> Subject: [TenTec] TEn-Tec Orion - Band Data Connector
>
>
> Hi all,
>
> in ORION 565 AT manual I'am missing the description
> to Figure 2-17 - Band Data Connector.
>
> The PINs
> DIG RTN and AUX
> how they works?
>
> 73 Milan, OK1FM
> ok1fm at ges.cz
>
>
>
>
>
>
>
>
> ------------------------------
>
> Message: 13
> Date: Mon, 28 Feb 2005 09:03:32 -0600
> From: "Wes Attaway (N5WA)" <n5wa at sport.rr.com>
> Subject: Re: [TenTec] TEn-Tec Orion - Band Data Connector
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Message-ID: <CKENKPPFHOJMGOBAPGAJIEOEDKAA.n5wa at sport.rr.com>
> Content-Type: text/plain; charset="windows-1250"
>
> I did not read your message corectly.  The info about the Band Data
> connector is on page 27.
>
> -----Original Message-----
> From: tentec-bounces at contesting.com
[mailto:tentec-bounces at contesting.com]On
> Behalf Of Milan G?tter
> Sent: Monday, February 28, 2005 4:57 AM
> To: Discussion of Ten-Tec Equipment
> Subject: [TenTec] TEn-Tec Orion - Band Data Connector
>
>
> Hi all,
>
> in ORION 565 AT manual I'am missing the description
> to Figure 2-17 - Band Data Connector.
>
> The PINs
> DIG RTN and AUX
> how they works?
>
> 73 Milan, OK1FM
> ok1fm at ges.cz
>
>
>
>
>
>
>
>
>
> ------------------------------
>
> Message: 14
> Date: Mon, 28 Feb 2005 16:26:37 +0100
> From: =?windows-1250?Q?Milan_G=FCtter=2C_OK1FM?= <ok1fm at ges.cz>
> Subject: Re: [TenTec] TEn-Tec Orion - Band Data Connector
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Message-ID: <NLEKKLBCEDDEAHHFIKLCMEJEDMAA.ok1fm at ges.cz>
> Content-Type: text/plain; charset="windows-1250"
>
> OK, thank You, this is sure, but what it is
> DIG RTN ?
> AUX ?
>
> 73
>
> Milan, OK1FM
>
>
>
>
>
> >-----Original Message-----
> >From: tentec-bounces at contesting.com
> >[mailto:tentec-bounces at contesting.com]On Behalf Of Wes Attaway (N5WA)
> >Sent: Monday, February 28, 2005 3:50 PM
> >To: Discussion of Ten-Tec Equipment
> >Subject: Re: [TenTec] TEn-Tec Orion - Band Data Connector
> >
> >
> >The pin-outs, looking at back of connector, per Fig. 2-17:
> >
> >80M   160M   GND
> >
> >30M   40M     60M
> >
> >15M   17M     20M
> >
> >DIG
> >RTN   10M     12M
> >
> >NC     AUX     +13.8V
> >
> >
> >
> >-----Original Message-----
> >From: tentec-bounces at contesting.com
> >[mailto:tentec-bounces at contesting.com]On
> >Behalf Of Milan G?tter
> >Sent: Monday, February 28, 2005 4:57 AM
> >To: Discussion of Ten-Tec Equipment
> >Subject: [TenTec] TEn-Tec Orion - Band Data Connector
> >
> >
> >Hi all,
> >
> >in ORION 565 AT manual I'am missing the description
> >to Figure 2-17 - Band Data Connector.
> >
> >The PINs
> >DIG RTN and AUX
> >how they works?
> >
> >73 Milan, OK1FM
> >ok1fm at ges.cz
> >
> >
> >
> >
> >
> >
> >
> >--
> >P??choz? zpr?va neobsahuje viry.
> >Zkontrolov?no Antivirov?m syst?mem AVG.
> >Verze: 7.0.305 / Virov? b?ze: 266.5.1 - datum vyd?n?: 27.2.2005
> >
>
>
>
> ------------------------------
>
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
>
> End of TenTec Digest, Vol 26, Issue 76
> **************************************

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