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Old August 19th 05, 02:17 PM
Michael Lawson
 
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"Michael A. Terrell" wrote in message
...
"Mark S. Holden" wrote:

Yes, I got it from

http://www.american-milspec.com

They don't seem to have the same model now. It's a "folding"

antenna
with shock cord holding the elements together for travel- kind of

like
the poles for "dome tents". It was made for the PRC-25 and

PRC-77.


PRC-77? That is one radio I never want to see again. I did QA

on
them at Cincinnati Electronics. It was an early '60s design finally
being built in the late '70s with specially made runs of obsolete
Motorola RF transistors. We would order 10,000 parts and they would
ship 12,500 and tell use to test and use the best ones. It was a

real
PITA germanium front end to try to get through the module
interchangability tests.


Cincinnati Electronics?? A forerunner to Cincinnati Microwave??

--Mike L.


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Old August 19th 05, 02:50 PM
Michael A. Terrell
 
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Michael Lawson wrote:

Cincinnati Electronics?? A forerunner to Cincinnati Microwave??

--Mike L.



No, it is a defense contractor: http://www.cinele.com/index2.htm and
I see that it was just bought by the company that bought Microdyne in
Ocala and put a couple hundred people out of work.

--
Link to my "Computers for disabled Veterans" project website deleted
after threats were telephoned to my church.

Michael A. Terrell
Central Florida
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Old August 19th 05, 02:57 PM
John S.
 
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consigliori wrote:
Need some advice from someone who has used either/both of these
receivers. I am about to buy one of the two radios and am having a
hard time deciding. The radio's I am comparing are in the following
configuration:

JRC NRD 545 D - Stock - ~ $1800.00

AOR 7030+ (Standard Filters 2.4, 4, 5.5, 9.5)
+ Noise Blanker and Notch Upgrade
+ 500hz Collins Mechanical filter
+ 1.0Khz Murata Data Filter
~ $1815

Opinions?


In either case that is a LOT of money for a shortwave receiver. Are
you really sure your listening habits require you to spend almost
$2,000 on one HF radio? Given that there are many high-end used radios
selling for a fraction of those prices, why not go that way. Chances
are you will hear exactly the same stations.

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Old August 19th 05, 04:08 PM
Michael Lawson
 
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"Michael A. Terrell" wrote in message
...
Michael Lawson wrote:

Cincinnati Electronics?? A forerunner to Cincinnati Microwave??

--Mike L.



No, it is a defense contractor: http://www.cinele.com/index2.htm

and
I see that it was just bought by the company that bought Microdyne

in
Ocala and put a couple hundred people out of work.


EO solutions, eh? I wonder if they've worked with the
Electro Optics Dept. at the University of Dayton, or
worked with people from Wright Patt.

--Mike L.


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Old August 19th 05, 06:36 PM
mike0219116
 
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I have a 545 and I've been disappointed with it overall. I use my R8B
almost exclusively these days. I can't even remember the last time I
had the 545 on.



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Old August 20th 05, 12:10 AM
Michael A. Terrell
 
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Michael Lawson wrote:

"Michael A. Terrell" wrote in message
...
Michael Lawson wrote:

Cincinnati Electronics?? A forerunner to Cincinnati Microwave??

--Mike L.



No, it is a defense contractor: http://www.cinele.com/index2.htm

and
I see that it was just bought by the company that bought Microdyne

in
Ocala and put a couple hundred people out of work.


EO solutions, eh? I wonder if they've worked with the
Electro Optics Dept. at the University of Dayton, or
worked with people from Wright Patt.

--Mike L.



I have no idea. I worked there a long time ago, during the mid '70s.
The place was a Crosley machine shop during WWII. The facilities and
most of the office equipment was still owned by the US government and
leased to Crosley. After that, Avco (The Aviation Company) which is now
Avco Financial services took over from Crosley. When AVCO got out of
the defense business Cincinnati Electronics was formed. They didn't own
anything except parts left over from the Crosley days. They did
subcontract work for other companies who fought for, and won the
contracts. It was a hot, nasty place to work. I did my eight hours in
either a screened booth full of hot test equipment and no AC, or in the
SATE booth which was "Semi-Automated Test Equipment" that told you where
to set the controls as it ran test after test with a noisy high speed
drum printer that literally shook the aluminum computer room. I was
surprised to hear that they were still in business because of the way
they used to treat the employees. You weren't hired long term, you were
hired to work on one product, or contract. When it ended you had to wait
to see if you would be rehired for the next product or contract. The
only way to describe it? It was a lousy sweat shop.



--
Link to my "Computers for disabled Veterans" project website deleted
after threats were telephoned to my church.

Michael A. Terrell
Central Florida
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Old August 20th 05, 11:04 PM
Telamon
 
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In article ,
"Mark S. Holden" wrote:

wrote:

Just curious: Where'd you get the whip? Is it military surplus?

Steve


Yes, I got it from

http://www.american-milspec.com

They don't seem to have the same model now. It's a "folding" antenna
with shock cord holding the elements together for travel- kind of like
the poles for "dome tents". It was made for the PRC-25 and PRC-77.

I made a base out of some PVC plumbing parts, and put an impedance
matching transformer in it, and a BNC connector sticks out the side.
The bottom of the base is threaded with a 1/4-20 thread so I can put it
on one of my tripods.

I have a 30 foot run of RG-316e to connect the radio and antenna.

It takes about 2 minutes to set up or take down.


Mark do you have the + version. Mine has a three position antenna switch
on the back with a whip amplifier as one position so no transformer
needed. Maybe you found the whip still works better with the transformer?

1. SO-239 socket 50 ohms.
2. SO-239 socket whip amp.
3. connect to the high impedance terminals.

--
Telamon
Ventura, California
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Old August 21st 05, 01:34 AM
Mark S. Holden
 
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Telamon wrote:
snip

Mark do you have the + version. Mine has a three position antenna switch
on the back with a whip amplifier as one position so no transformer
needed. Maybe you found the whip still works better with the transformer?

1. SO-239 socket 50 ohms.
2. SO-239 socket whip amp.
3. connect to the high impedance terminals.


Hi

I have the plus version with the noise blanker and notch filter.

I have my radio set for the normal 50 ohm input because I've also added
the Avantek 30db amp. Frankly, if I find a nice quiet 15-20db amp
that'll fit I may switch it out, as I end up dialing in some attenuation
below 5mhz.

I didn't try the antenna without the transformer because I bought a box
of 100 ferrite cores a while back, and given how much they've helped
with my home antennas, I just automatically include one on every antenna
I make.

In any event, the whip works incredibly well, so there's not much
incentive to change it.

I've done a fair amount of experimenting with portable antennas, as
vacations and camping trips are a great time for me to listen to
shortwave - and this one outperforms everything else I've tried, and
it's at least as portable as the LF engineering Skymatch it replaced.


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