Date   

Re: Mil 810 C, D, E for shock......Mil 810 C, D, E, for vibration in IC706/7000

jdow <jdow@...>
 

From: "Tom" <tgleeman@isp.com>

That is a good impression, Mike. I used to watch
the guys at the surplus house get the surface mounted
parts off boards by flexing the board. They didn't
even need to get their soldering irons warm.
However, properly mounted PCBs do not vibrate as much with SMT as they
do with the heavier leaded components. I believe it's a net win if the
PCB is made stiff enough. The chief win is getting resonances out of
the range you get within a given vehicle.

{^_^}


Re: Mil 810 C, D, E for shock......Mil 810 C, D, E, for vibration in IC706/7000

MKM <starlight04@...>
 

Great story.
Thanks.

On Mar 4, 2005, at 7:08 PM, jdow wrote:


Ah yes, that is likely true about the missing analog filters.

Now the time was in the very early 70s. The setting was a small company
in Arcadia that was building a Sonobouy receiver for the S3A aircraft.
This receiver had 31 individual receivers through the low level audio
output, a 31 by 16 multiplexer, and a fancy antenna multicoupler with
a preamp from science fiction. (130MHz or so frequency Very high IMD
intercept point and a noise figure so low that measuring it required
liquid nitrogen.)

We were testing unit 1 for shock and vibration. The unit was firmly
mounted to the vibration table. It was powered up. And as I heard it
some one of the table's jockeys pulled a wire. The table went WHAM
against its stops. The poor receiver suffered. About 1/3 of the
crystal filters died. Some were degraded. And one degraded and died
as I was retesting it after the event. It seems those nice little
wires to the plated areas on the crystals in the crystal filters do
not like heavy shock and vibration. They tend to break loose. So any
receiver that can minimize the number of crystal filters can survive
more shock and vibration. This is also a good reason to have multiple
first conversion filters that can be selected arbitrarily by the user
overriding any automated selection.

Not that the 7800 gets much shock and vibration in most uses but it
should have this override capability as a redundancy feature that
leaves the radio mostly useable while replacements are on order. For
military or Homeland Security purposes such a design should be
considered a requirement.

{^_^} 62 new filters later and that radio was back in business,
in theory anyway. Now, I've forgotten how many were replaced.
But it was not "62". <sigh>
W6MKU
----- Original Message -----
From: "MKM" <starlight04@gmail.com>

Also, the IC-7000 does not require analog filters so it is mechanically
/ electrically more robust in theory.

I heard last night from the 3840 group that the rig will have digital
in / out for audio...hope it is true.

I can't wait, Icom should just release the specs now and deliver later.

On Mar 4, 2005, at 3:32 PM, Mike Valentine wrote:



Hi Tom,

I am under the impression that surface mounted components have less
mass, shorter cantilever length, and therefore much, much higher
mechanical resonant frequencies than leaded parts.

Am I missing something?

Cheers,

Mike - W8MM




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Re: Mil 810 C, D, E for shock......Mil 810 C, D, E, for vibration in IC706/7000

jdow <jdow@...>
 

Ah yes, that is likely true about the missing analog filters.

Now the time was in the very early 70s. The setting was a small company
in Arcadia that was building a Sonobouy receiver for the S3A aircraft.
This receiver had 31 individual receivers through the low level audio
output, a 31 by 16 multiplexer, and a fancy antenna multicoupler with
a preamp from science fiction. (130MHz or so frequency Very high IMD
intercept point and a noise figure so low that measuring it required
liquid nitrogen.)

We were testing unit 1 for shock and vibration. The unit was firmly
mounted to the vibration table. It was powered up. And as I heard it
some one of the table's jockeys pulled a wire. The table went WHAM
against its stops. The poor receiver suffered. About 1/3 of the
crystal filters died. Some were degraded. And one degraded and died
as I was retesting it after the event. It seems those nice little
wires to the plated areas on the crystals in the crystal filters do
not like heavy shock and vibration. They tend to break loose. So any
receiver that can minimize the number of crystal filters can survive
more shock and vibration. This is also a good reason to have multiple
first conversion filters that can be selected arbitrarily by the user
overriding any automated selection.

Not that the 7800 gets much shock and vibration in most uses but it
should have this override capability as a redundancy feature that
leaves the radio mostly useable while replacements are on order. For
military or Homeland Security purposes such a design should be
considered a requirement.

{^_^} 62 new filters later and that radio was back in business,
in theory anyway. Now, I've forgotten how many were replaced.
But it was not "62". <sigh>
W6MKU

----- Original Message -----
From: "MKM" <starlight04@gmail.com>

Also, the IC-7000 does not require analog filters so it is mechanically
/ electrically more robust in theory.

I heard last night from the 3840 group that the rig will have digital
in / out for audio...hope it is true.

I can't wait, Icom should just release the specs now and deliver later.

On Mar 4, 2005, at 3:32 PM, Mike Valentine wrote:



Hi Tom,

I am under the impression that surface mounted components have less
mass, shorter cantilever length, and therefore much, much higher
mechanical resonant frequencies than leaded parts.

Am I missing something?

Cheers,

Mike - W8MM


Re: Mil 810 C, D, E for shock......Mil 810 C, D, E, for vibration in IC706/7000

MKM <starlight04@...>
 

Also, the IC-7000 does not require analog filters so it is mechanically / electrically more robust in theory.

I heard last night from the 3840 group that the rig will have digital in / out for audio...hope it is true.

I can't wait, Icom should just release the specs now and deliver later.

On Mar 4, 2005, at 3:32 PM, Mike Valentine wrote:



Hi Tom,

I am under the impression that surface mounted components have less
mass, shorter cantilever length, and therefore much, much higher
mechanical resonant frequencies than leaded parts.

Am I missing something?

Cheers,

Mike - W8MM

--- In ic7000@yahoogroups.com, "Tom" <tgleeman@i...> wrote:
Hi IC7000 Fans,

Does anyone out there know how Icom achieves Mil 810 C, D, E for
shock and vibration when using surface mounted components?

Just curious.

Tom
KE6YNH, 73
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Re: Do our comments affect the design of the IC7000 ?

jdow <jdow@...>
 

From: "Steve" <steve.noskowicz@motorola.com>
"Ralf Reiterer" <ralfreit@g...>
Ralf, OE5ROP wrote:
...IC-7000 and the computer...
* implement a sophisticated CI-V command set that allows (almost)
all functions to be controlled from the computer.

No, all! and not just conrolled, but readable as well.
It should be, "All paramaters can be remotely controlled AND remotely
read." Anything else will annoy someone, say a perfectionist like me.
{^_-}


* report ALL changes made directly on the radio back to the
computer -
I'll up the ante on this and request that the changes which are
reported be user programmable via CI-V. Only tales one bit per
parameter to report.
If the C&R, Control and Reporting, is via CI-V that may be worthwhile.
If the C&R is via Ethernet that's spurious. (CI-V should still exist
and offer the ability to send control data to the likes of a PW-1, of
course. But for remote control it should be considered a dead issue
in exchange for an Ethernet interface that handles the IF samples and
the bandscope data as well as the C&R data. Then we can build magic
with radios.

{^_-} Wobbly 6 Mangy Kilowatts Unleashed.


Re: Mil 810 C, D, E for shock......Mil 810 C, D, E, for vibration in IC706/7000

Tom <tgleeman@...>
 

Hi Mike(W8MM) and the Group,

Mike wrote:

I am under the impression that surface
mounted components have less mass, shorter
cantilever length, and therefore much, much
higher mechanical resonant frequencies than
leaded parts.
That is a good impression, Mike. I used to watch
the guys at the surplus house get the surface mounted
parts off boards by flexing the board. They didn't
even need to get their soldering irons warm.

I'm just wondering how Icom produces a reliable product
they call "portable" and "mobile" or does that just mean
it can be carried from room to room?

Anyone.....what's inside your 706.....and possibly
the 7000 that keeps the parts from rattling around????

Tom
KE6YNH, 73




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Re: Do our comments affect the design of the IC7000 ?

Steve <steve.noskowicz@...>
 

--- In ic7000@yahoogroups.com,
"Ralf Reiterer" <ralfreit@g...>
Ralf, OE5ROP wrote:
...IC-7000 and the computer...
* implement a sophisticated CI-V command set that allows (almost)
all functions to be controlled from the computer.

No, all! and not just conrolled, but readable as well.


* allow bandscope samples to be read from the computer.
And S-meter.


* report ALL changes made directly on the radio back to the
computer -
I'll up the ante on this and request that the changes which are
reported be user programmable via CI-V. Only tales one bit per
parameter to report.


73, Steve, K9DCI


Re: Mil 810 C, D, E for shock......Mil 810 C, D, E, for vibration in IC706/7000

Mike Valentine <mike@...>
 

Hi Tom,

I am under the impression that surface mounted components have less
mass, shorter cantilever length, and therefore much, much higher
mechanical resonant frequencies than leaded parts.

Am I missing something?

Cheers,

Mike - W8MM

--- In ic7000@yahoogroups.com, "Tom" <tgleeman@i...> wrote:
Hi IC7000 Fans,

Does anyone out there know how Icom achieves Mil 810 C, D, E for
shock and vibration when using surface mounted components?

Just curious.

Tom
KE6YNH, 73
----------

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Re: May or June?

jdow <jdow@...>
 

So did the rest of us, as a matter of fact.

{^_-}

----- Original Message -----
From: "Adam Farson" <farson@shaw.ca>

Hi Mike,

No problem - I just felt that the thread had reached a good cut-off point.

Cheers for now, 73,
Adam VA7OJ/AB4OJ


-----Original Message-----
From: starmike@bellsouth.net [mailto:starmike@bellsouth.net]

Sorry about that Adam


From: Adam Farson <farson@shaw.ca>


Mil 810 C, D, E for shock......Mil 810 C, D, E, for vibration in IC706/7000

Tom <tgleeman@...>
 

Hi IC7000 Fans,

Does anyone out there know how Icom achieves Mil 810 C, D, E for
shock and vibration when using surface mounted components?

Just curious.

Tom
KE6YNH, 73
----------

No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.308 / Virus Database: 266.6.0 - Release Date: 3/2/2005


Re: May or June?

Adam Farson
 

Hi Mike,

No problem - I just felt that the thread had reached a good cut-off point.

Cheers for now, 73,
Adam VA7OJ/AB4OJ

-----Original Message-----
From: starmike@bellsouth.net [mailto:starmike@bellsouth.net]
Sent: 03 March 2005 11:22
To: ic7000@yahoogroups.com
Subject: Re: RE: [ic7000] Re: May or June?


Sorry about that Adam


From: Adam Farson <farson@shaw.ca>
Date: 2005/03/03 Thu PM 02:16:21 EST
To: ic7000@yahoogroups.com
Subject: RE: [ic7000] Re: May or June?








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Re: May or June?

Adam Farson
 

Hi Ya'akov,

Given that the IC-7000 will be the same size as the IC-706MkIIG (except 20mm
shorter), it will not have an internal ATU. The AT-180 and AH-4 will still
be compatible with it. Icom has always maintained an excellent level of
accessory compatibility across its HF product line.

If you wish to erect random wire antennas, you will need the AH4 (or an
SGC-23X series coupler). The AT-180 was expressly designed to match loads
within a 3:1 VSWR excursion to 50 ohms resistive.

The thread relating to wives etc. has just been closed.

Best 73,
Adam, VA7OJ/AB4OJ
Owner, Yahoo! ic7000 Group

-----Original Message-----
From: Ya`akov N. Miles [mailto:ve7alq@arrl.net]
Sent: 03 March 2005 11:16
To: ic7000@yahoogroups.com
Subject: [ic7000] Re: May or June?



--- In ic7000@yahoogroups.com, <starmike@b...> wrote:
Every peice of HAM gear I buy cost me double because the XYL wants
equal amounts

Send your liberated wife out to work, and tell her you want 50% of her
salary. I don't have that problem because I am single (never married)

As far as the IC7000 goes, I am ordering an additional IC-706mkiiG while I
can still get one. Icom has apparently pushed through a sizeable price rise
for the IC-706mkiiG, their motives aren't exactly clear. I think that
owning two IC-706mkiiGs will do me fine for the forseeable future, even if I
do go to live in Israel, as I have dreamed.

Does anyone know if the AT-180 fully automatic antenna tuner will be the
companion to the IC7000, or does the IC7000 have an on-board antenna tuner?
Maybe Icom will come up with something cheaper as the matching antenna tuner
to the IC7000. I am paying CDN$699 for my second AT-180 The AT-180 is a
very good fully automatic antenna tuner, it just sits quietly beside my
IC-706mkiiG and guarantees me a
1:1 SWR wherever I go. The un-nice thing about the AT-180 is its price.
Also, it does not tune random wires, the tuning range is not that great.
It's fine for coax.






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Re: May or June?

starmike@...
 

Sorry about that Adam


From: Adam Farson <farson@shaw.ca>
Date: 2005/03/03 Thu PM 02:16:21 EST
To: ic7000@yahoogroups.com
Subject: RE: [ic7000] Re: May or June?


Re: May or June?

Adam Farson
 

Hi Keith,

Your wish is my command, Effendi. I was just looking for an excuse.

This thread is now closed.

I would like to appeal to all group members not to exploit the relative
paucity of substantive IC-7000 information by starting off-topic and
irrelevant threads. Rob and I cannot sit on top of this thing 24/7; we also
have lives to lead.

Best 73,
Adam, VA7OJ/AB4OJ
Owner, Yahoo! ic7000 Group





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Re: May or June?

Ya`akov N. Miles <ve7alq@...>
 

--- In ic7000@yahoogroups.com, <starmike@b...> wrote:
Every peice of HAM gear I buy cost me double because the XYL wants
equal amounts

Send your liberated wife out to work, and tell her you want 50% of her
salary. I don't have that problem because I am single (never married)

As far as the IC7000 goes, I am ordering an additional IC-706mkiiG
while I can still get one. Icom has apparently pushed through a
sizeable price rise for the IC-706mkiiG, their motives aren't exactly
clear. I think that owning two IC-706mkiiGs will do me fine for the
forseeable future, even if I do go to live in Israel, as I have dreamed.

Does anyone know if the AT-180 fully automatic antenna tuner will be
the companion to the IC7000, or does the IC7000 have an on-board
antenna tuner? Maybe Icom will come up with something cheaper as the
matching antenna tuner to the IC7000. I am paying CDN$699 for my
second AT-180 The AT-180 is a very good fully automatic antenna
tuner, it just sits quietly beside my IC-706mkiiG and guarantees me a
1:1 SWR wherever I go. The un-nice thing about the AT-180 is its
price. Also, it does not tune random wires, the tuning range is not
that great. It's fine for coax.


Re: May or June?

Keith LaBorde - K4KAL <k4kal@...>
 

Can you guys take this offline an not on the group.

----- Original Message -----
From: Dr. Howard S. White
To: ic7000@yahoogroups.com
Sent: Thursday, March 03, 2005 1:55 PM
Subject: Re: [ic7000] Re: May or June?


No argument.. which is why she gets away with it being necessary...

Now If I could only figure out a way for Ham gear to enhance male "sex appeal"

__________________________________________________________
Howard S. White Ph.D. P. Eng., VE3GFW/K6 ex-AE6SM KY6LA
"No Good Deed Goes Unpunished"
Formerly "Awfully Extremely Six Sado Masochist"
"Krazy Yankee Six Loves America"
Website: www.ky6la.com



----- Original Message -----
From: jdow
To: ic7000@yahoogroups.com
Sent: Thursday, March 03, 2005 3:19 AM
Subject: Re: [ic7000] Re: May or June?


Admit it. If she ever stopped trying to look like a million dollars
you'd drop her in a flash.
{^_-}
----- Original Message -----
From: "Dr. Howard S. White" <drpaper@msn.com>
>
> Yes,... but come on Joanne.. you know the rules..
>
> what I buy is extras we dont need... what she buys is necessities...
>
> and somehow she never has anything to wear...
>
> ----- Original Message -----
> From: jdow
>
> I presume she has credit at Robinsons-May, Neiman-Marcus, et al.... If
> you don't you SHOULD consider that scary.
>
> {^_-} <- a reformed clothes horse.
> ----- Original Message -----
> From: "Dr. Howard S. White" <drpaper@msn.com>
> >
> > I have an account with them.. they just charge it when it gets
there...
> >
> > In fact the XYL says its scary that I buy so much ham gear that I have
> credit at the Ham Stores..
> >
> > ----- Original Message -----
> > From: Mark Brueggemann
> > --- ic7000@yahoogroups.com wrote:
> >
> > "Dr. Howard S. White" <drpaper@msn.com> wrote:
> >
> > > Saturday I put an IC-7000 on order at HRO..
> >
> > So what's the deposit on a radio that doesn't have a price set yet?
> >
> >
> > =====
> > Mark K5LXP
> > Albuquerque, NM



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Re: May or June?

Adam Farson
 

Heaven be prais'd, I don't have that problem.

Cheers for now, 73,
Adam VA7OJ/AB4OJ



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Re: May or June?

starmike@...
 

Every peice of HAM gear I buy cost me double because the XYL wants equal amounts


From: "Dr. Howard S. White" <drpaper@msn.com>
Date: 2005/03/03 Thu PM 01:55:04 EST
To: <ic7000@yahoogroups.com>
Subject: Re: [ic7000] Re: May or June?


Re: May or June?

Dr. Howard S. White <drpaper@...>
 

No argument.. which is why she gets away with it being necessary...

Now If I could only figure out a way for Ham gear to enhance male "sex appeal"

__________________________________________________________
Howard S. White Ph.D. P. Eng., VE3GFW/K6 ex-AE6SM KY6LA
"No Good Deed Goes Unpunished"
Formerly "Awfully Extremely Six Sado Masochist"
"Krazy Yankee Six Loves America"
Website: www.ky6la.com

----- Original Message -----
From: jdow
To: ic7000@yahoogroups.com
Sent: Thursday, March 03, 2005 3:19 AM
Subject: Re: [ic7000] Re: May or June?


Admit it. If she ever stopped trying to look like a million dollars
you'd drop her in a flash.
{^_-}
----- Original Message -----
From: "Dr. Howard S. White" <drpaper@msn.com>
>
> Yes,... but come on Joanne.. you know the rules..
>
> what I buy is extras we dont need... what she buys is necessities...
>
> and somehow she never has anything to wear...
>
> ----- Original Message -----
> From: jdow
>
> I presume she has credit at Robinsons-May, Neiman-Marcus, et al.... If
> you don't you SHOULD consider that scary.
>
> {^_-} <- a reformed clothes horse.
> ----- Original Message -----
> From: "Dr. Howard S. White" <drpaper@msn.com>
> >
> > I have an account with them.. they just charge it when it gets
there...
> >
> > In fact the XYL says its scary that I buy so much ham gear that I have
> credit at the Ham Stores..
> >
> > ----- Original Message -----
> > From: Mark Brueggemann
> > --- ic7000@yahoogroups.com wrote:
> >
> > "Dr. Howard S. White" <drpaper@msn.com> wrote:
> >
> > > Saturday I put an IC-7000 on order at HRO..
> >
> > So what's the deposit on a radio that doesn't have a price set yet?
> >
> >
> > =====
> > Mark K5LXP
> > Albuquerque, NM



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Re: May or June?

jdow <jdow@...>
 

Admit it. If she ever stopped trying to look like a million dollars
you'd drop her in a flash.
{^_-}

----- Original Message -----
From: "Dr. Howard S. White" <drpaper@msn.com>

Yes,... but come on Joanne.. you know the rules..

what I buy is extras we dont need... what she buys is necessities...

and somehow she never has anything to wear...

----- Original Message -----
From: jdow

I presume she has credit at Robinsons-May, Neiman-Marcus, et al.... If
you don't you SHOULD consider that scary.

{^_-} <- a reformed clothes horse.
----- Original Message -----
From: "Dr. Howard S. White" <drpaper@msn.com>
>
> I have an account with them.. they just charge it when it gets
there...
>
> In fact the XYL says its scary that I buy so much ham gear that I have
credit at the Ham Stores..
>
> ----- Original Message -----
> From: Mark Brueggemann
> --- ic7000@yahoogroups.com wrote:
>
> "Dr. Howard S. White" <drpaper@msn.com> wrote:
>
> > Saturday I put an IC-7000 on order at HRO..
>
> So what's the deposit on a radio that doesn't have a price set yet?
>
>
> =====
> Mark K5LXP
> Albuquerque, NM