Product Catalogue. Antennas .. Made of aluminium and ABS plastic, Televés line of antennas are constructed to resist the har- dest climatic Closed. CATALOGO internacional CATALOGO internacional . Televes pioneered the creation of the first compact indoor. Made of aluminium and ABS plastic, the Televés line of antennas Closed The information contained in this catalogue was to be best Televés’.
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Televes reportedly makes good antennas and is known for the triple boom yagi. This new version apparently is more designed for current spectrum, and has built in preamp with LTE filter. So could help in problem areas, but the 91XG and a Juice preamp may be suitable and more affordable, as the Televes is more expensive and not widely distributed in the US. HDTV Primer is not high on these antennas: When there’s overlap you don’t get any gain because the same signal appears on each section.
Stacking antennas is a better option where the spacing distance is set so that apertures don’t overlap. If I thought these were better than 91XGs I’d have them. Hi, I think I will hold off on my current setup since it is working good enough.
Solid cataloog is promoting them, saw them for sale there today. Televes is a well known Spanish TV Antenna Manufacturer who has been in business for a very long time Dde latter two appear to be the same and look very similar to the DAT HD, which was reviewed along with many other Antennas by the fol.
Supposedly the built in Boss-Tech preamp has automatic adjustable gain to prevent overload and adjust accordingly to the signal strength needed to receive a specific RF signal. So could be very good feature when dealing with a mix of strong and weak signals, if it truly works. And nice to see Solid Signal now carrying Televes products and decent prices. Originally Posted by tylerSC. Last edited by AntAltMike; at Looks like gobbledegook to me.
Their drawing depicts the gain on six equal strength channels, with the individual output channel strengths not shown. What does 52 caalogo and 50dBmV mean in the context of total power? As I understand it, when we measure the “strength” of a single, 8VSB channel, we are measuring the power developed across its width of about 5.
I’m sure I would hope that these values have been adjusted for the wider, Cataloo channel bandwidth. I’m sure that this preamp could amplify one single channel to 52dBmV, but what if there are ten such channels, with, say, input levels of 45dBmV? It looks like the table is showing that with df an input load, the maximum output level or each channel would be 17 to 18dB below that.
This amplifier is a seriously bad idea. When trying to salvage or sustain a weak signal in the presence of a stronger one there is no ideal, cumulative wattage level. The single, most important thing for anyone to do when using a broadband amplifier that is being fed signals with widely differing signal levels is to attenuate the strongest before preamplifying.
Unfortunately there are few products available to do this, and they require equipment to tune properly. What are all of those other F-connectors for?
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Does that monstrosity also amplify four bands of L-band satellite? Is there some way to blow up the label to read it? Antennas pointed in different directions I used to have a math teacher who was really committed to “rote”.
Once, when I was not moving enough to show signs of life, she said, ” AntAltMikewhat are you doing? She said, “You’re not supposed to think. I do the thinking here. I’m not going to try to teach you anything else. You can just come in here every day and do whatever you want and I’ll give you your B”. This amplifier design doesn’t let the user think, or to utilize the fruits of his thinking.
When you are trying to sustain the viability of signals coming off the same antenna that may have 40dB of signal level variance, it is not enough to have the amplifier adjust itself to a cumulative wattage level that limits some calculated intermodulation derivative to some arbitrary level.
You want to save the weakest signal, come Hell or high water.
The damage that amplifiers develop and impress upon that weakest channel are the accumulations of various degradation effects, and your best bet to save it, if you don’t have the means to sequestrate it that I do, is to be able to manually tweak the amplifier’s gain up and down, which you can’t do with this amplifier.
And in many cases, you don’t want to attenuate the entire spectrum, either, because in extreme cases, that will reduce the weak input signal unacceptably close to the noise floor. I haven’t had cause to analyze the architecture of preamplifiers with manual signal level controls lately. I remember that with most 30dB power amplifiers, the so called “level” or “gain” adjustment was just a variable attenuator on the signal input path, whereas the higher gain power amplifiers actually had two stages of amplification, with the attenuator in between the stages.
Are there any current models of preamplifier that have manual gain adjustments that are not just input attenuators? If so I would prefer those to this one. Is dBuV any greater than what Wineguard claims as the safe level for its amplifiers with a one channel load? FWIW, I know that as recently as a few years ago, a lot of European amplifiers still used analog signal levels in their ratings, which grossly inflated them.
In less than a week, most of these Televes antennas telwves Solid Signal have sold out. Which also has built in Boss-Tech amplifier but a more discreet form factor.
They have ordered a new shipment of the larger DAT versions which should be available again in a few weeks. Hopefully the same reasonable price. I think they were a bit surprised they sold out so quickly. Would be interesting to hear reception reports, especially in regard to the smart Boss-Tech amplifier.
telfves Originally Posted by AntAltMike. Originally Posted by Calaveras. I believe the Kitztech KT is such an amplifier. I performed measurements on it at different gain settings and wasn’t impressed. The lowest noise figure 1. The noise figure begins to degrade below a gain of 30 dB, 3dB at 20 dB of gain and is between dB at 15 dB gain. I consider that to be an unacceptably low number. The KT is a two-stage amp with a variable attenuator between the stages. Tech support for Antennas Direct. I can barely conceptualize how that could even be physically possible if the gain adjustment configuration is interstage attenuation, as ADTech reports.
Here is one way it might be possible. Suppose the second amplification stage had constant wattage AGC in it. Heleves you weaken the input into it, it would have to further amplify everything, noise and all, right up to it’s maximum gain.
I could see a problem like that developing if someone working in the field kludged together his own, two stage amplifier, but I can’t for the life of me figure how a manufactured product could develop more noise when operating in a lower gain mode. I’d like to chime in to point out that the new Televes US models filter frequencies above MHz and ship with a UL listed power supply unit.
Originally Posted by jruano. Where do you purchase? Not sure if the versions from Solid Signal are US models. They are, all of those filter above CH52, MHz. BB code is On. For the best viewing experience please update your browser to Google Chrome. Remove Advertisements Sponsored Links.