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"dusty" <dusty@dot.com>: Aug 28 11:26AM -0500 32 inch Insignia flat screen TV.   My big feet tripped over the antenna cable, ripping out the input where the cable screws on.   I took off the back hoping it would be a simple solder job, no luck. The little circuit board is broken.   How much trouble would it be to fix?   Appx, how much would it cost to fix?   How long would it take to fix?     I attached a link to some pictures.   https://www.dropbox.com/sh/610z20tqny4wocy/AABqKX-ycqKAAsRqYXoykuVEa?dl=0   Thanks for any information.

hapticz@sbcglobal.net: Aug 28 04:51AM -0700 On Saturday, March 23, 2013 at 10:16:06 AM UTC-4, mike wrote:   > A schematic or pinout info would save me reverse engineering the > thing.   > Thanks, mike   i have pinout of the output plug (no internal schemo), will soon post it.....

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Jeff Liebermann <jeffl@cruzio.com>: Aug 27 01:29PM -0700 On Wed, 26 Aug 2015 02:50:55 -0400, micky <NONONOmisc07@bigfoot.com> wrote:   >To use one splitter as a combiner, for two antennas, >and the other splitter as a splitter, to feed the signal to a DVDR and >to a digital-to-analog set-top box that feeds a VCR.   You have a possible problem. When you take two antennas and combine them with a splitter/combiner, you run the risk of creating a situation where the two signals cancel. For example, if you have two antennas, and both pickup the same station, with roughly the same signal level, and roughly 180 degrees out of phase, the signals will cancel in the combiner. Worse, you will probably have different group delays (phase shifts) between the two antennas at different frequencies and even on different parts of the 6 MHz wide signal. The result is a "hole" in the frequency respons (gain) of the combined antennas. What that looks like on a TV is a tolerably strong signal, but with a truely rotten picture. With digital TV, it can also be the equivalent of the old "ghosts" problem, where you have two signals arriving at different times, resulting in 2 pictures. However, with digital TV, it just results in a poor quality picture.   Combiner schemes work if: 1. The two antennas can't "see" each other and cover different TV stations. 2. The two antennas are for different frequency bands, such as VHF and UHF. You'll need a diplexer to do that, not a combiner. <https://www.google.com/search?q=vhf+uhf+tv+diplexer&tbm=isch> 3. The two antennas are identical and are pointed in the same direction. That will give you 3dB more gain, but you'll either a phasing harness, or two amplifiers and resistive combiner to make it work.   I suggest you get rid of the two antenna scheme and combiner for now and see if one antenna works better. Also, you can make it work with an RF switch between antennas, which admitttedly isn't convenient.   I'll address the rest later. Customer bearing checkbook just arrived...   -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558

micky <NONONOmisc07@bigfoot.com>: Aug 27 06:01PM -0400 In sci.electronics.repair, on Thu, 27 Aug 2015 13:29:15 -0700, Jeff   >Combiner schemes work if: >1. The two antennas can't "see" each other and cover different TV >stations.   That's the way they are now.   They now each cover one tuner (the DVDR or the set-top-box/vcr), which, via an A-B switch, feed the same set of televisions.   ><https://www.google.com/search?q=vhf+uhf+tv+diplexer&tbm=isch> >3. The two antennas are identical and are pointed in the same >direction. That will give you 3dB more gain, but you'll either a   3db is about 2x as strong? Yes, Wikip says power ratio is about 2, amplitude ratio is about the square root of 2. I asked Solid Signal if splitting the signal to go to the VCR and DVDR would cut the strength in half and he said, No, only 3db. Then he wanted to know where I live so he could give me distance and heading to the stations, and then recommend a second antenna. He didn't pronounce attenuator right, either. Oh, well.   >work.   >I suggest you get rid of the two antenna scheme and combiner for now >and see if one antenna works better. Also, you can make it work with   I have one antenna for each device now.   I see the problem and since I was smart enough to think of the DC voltage problem, I should have thought of what you just said.   Interestingly, the guy at Solid Signal was one who recommended two antennas and he didn't say a word about it either. And he certainly didn't push identical antennas or facing them the same direction.   Thanks for warning me.   >an RF switch between antennas, which admitttedly isn't convenient.   >I'll address the rest later. Customer bearing checkbook just >arrived...   Yes, more important.

"Ralph Mowery" <rmowery28146@earthlink.net>: Aug 27 06:10PM -0400 "micky" <NONONOmisc07@bigfoot.com> wrote in message news:e01vta9d7vrf9obab2eumk34uksr6gf0go@4ax.com... > live so he could give me distance and heading to the stations, and then > recommend a second antenna. He didn't pronounce attenuator right, > either. Oh, well.   Yes, 3 db is 2x larger or smaller depending on the direction of change. It is a log scale so 3 db =2x, 6 db =4x and 10 db=10x.   That is rounding off a tenth or two.   Unless the signals are right on the border point, 3 db or even 6 db won't make much difference. Especially for the digital signals as they are mostly good or bad and not fuzzy like the older analog TV signals.

cf005@FreeNet.Carleton.CA (M.A. Stewart): Aug 27 09:18PM >> > drive car, with a manual transmission... he would have been >> > 'left foot braking' at times! 100% guaranteed!     >> Only if he never mastered heel-and-toe...     Brockie had 'heel-and-toe' mastered when he was a nine-year old. The first front-wheel drive car he drove FAST, he had 'left foot braking' mastered in about nine minutes. Hell, when he got out the car he was probably speaking fluent Finnish, without a trace of an Oz accent.       -- "Brockie's my hero" The Holden hoons credo.

Tony Hwang <dragon40@shaw.ca>: Aug 27 11:20AM -0600 Jeff Liebermann wrote: > attack. I use my address.   > <http://www.renderlab.net/projects/WPA-tables/> > <https://wigle.net/stats#ssidstats>   Regardless, it is crackable if one intends to. I don't even bother hiding my SSID. Nothing important in my home network. My lawyer, bank, accountant keeping important stuffs.

Jeff Liebermann <jeffl@cruzio.com>: Aug 27 10:56AM -0700 On Thu, 27 Aug 2015 11:20:05 -0600, Tony Hwang <dragon40@shaw.ca> wrote:   >I don't even bother hiding my SSID. Nothing >important in my home network. My lawyer, bank, >accountant keeping important stuffs.   This is one reason why I hate security discussions. If you really think there's nothing important on your home computah, then I suggest you test this. Install a program that does a recursive text search on all your files. For Windoze, I use Agent Ransack: <https://www.mythicsoft.com/agentransack> Plug in your social security number, checking account numbers, and credit card numbers, and see what it finds. The idea is to obtain enough info to perform an identity theft. I was rather surprised to find both on my machine. While WPA2 cracking is usually just to gain access to a faster or more convenient internet connection, it's not beneath the dignity of most casual hackers to make some money on the side.     -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558

Sam E <why.should.this@be.email.invalid>: Aug 27 01:24PM -0500 On 08/26/2015 06:31 PM, Tony Hwang wrote:   > Fancy SSID has no impact on security.   It could affect how attractive your network is to a potential intruder.   So, indirectly, it is affecting security since it makes the difference on whether or not someone tries to get in.   -- "I am attempting to construct a mnemonic memory circuit using stone knives and bearskins."

Sam E <why.should.this@be.email.invalid>: Aug 27 01:26PM -0500 On 08/27/2015 12:29 AM, Jeff Liebermann wrote: > attack. I use my address.   > <http://www.renderlab.net/projects/WPA-tables/> > <https://wigle.net/stats#ssidstats>   Don't name your WiFi network "monkey".   -- "I am attempting to construct a mnemonic memory circuit using stone knives and bearskins."

Jeff Liebermann <jeffl@cruzio.com>: Aug 27 01:14PM -0700 On Thu, 27 Aug 2015 13:26:40 -0500, Sam E   >Don't name your WiFi network "monkey".   The SSID can be 1 to 32 characters. One of my customers set his SSID to "*". I forgot exactly what it broke, but I do recall spending a week failing to fix what I thought were unrelated problem. When I changed the SSID to something reasonable, all the weirdness went away. This was quite a while ago so presumably it's now fixed.   Another fun SSID is "ANY". I don't recall what it was suppose to do, but it was thrown into some long forgotten manufacturers firmware to allow any device to connect, probably for repeaters and range extenders. Try it and see what breaks.   Also try "Free Public WiFi" which is really a Microsoft XP bug. <http://www.npr.org/2010/10/09/130451369/the-zombie-network-beware-free-public-wifi>     -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558

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