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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. |
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 |
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. |
"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 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. |
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 |
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 |
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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