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Showing results 476 to 500 of 500
Search took 0.04 seconds; generated 105 minute(s) ago. Search: Posts Made By: ADTech
Forum: Help With Reception 4-Jan-2017, 11:59 PM
Replies: 32
Views: 54,781
Posted By ADTech
Solid copper core is certainly necessary with...

Solid copper core is certainly necessary with high-current draw amps with very long runs. If one has a low-draw pre-amp, the extra DC resistance of the the CCS core is irrelevant, especially on amps...
Forum: Help With Reception 20-Dec-2016, 2:09 AM
Replies: 5
Views: 13,195
Posted By ADTech
Use EITHER the CM3414 or the 7778 with a passive...

Use EITHER the CM3414 or the 7778 with a passive four-port splitter. Do NOT use both the preamp and the distribution amp.

The trees blowing in the wind are your major concern, not the amplifiers....
Forum: Help With Reception 19-Dec-2016, 12:56 AM
Replies: 21
Views: 39,218
Posted By ADTech
While one can do that, it's rarely necessary as...

While one can do that, it's rarely necessary as it was back in the analog cable TV days where signals at the outlet had to be pretty "hot" at 0 dBmV (-49 dBmV).

The dynamic range of digital ATSC...
Forum: Help With Reception 18-Dec-2016, 9:21 PM
Replies: 23
Views: 53,859
Posted By ADTech
I'd be most inclined to agree with their support...

I'd be most inclined to agree with their support that signal overload was in play. Signals per TVF report are far, far too strong for that amp.

The RCA can handle signals almost 10 dB stronger at...
Forum: Help With Reception 18-Dec-2016, 12:35 PM
Replies: 21
Views: 39,218
Posted By ADTech
Same amp, different label.

Same amp, different label.
Forum: Help With Reception 18-Dec-2016, 12:09 AM
Replies: 21
Views: 39,218
Posted By ADTech
Maybe, don't have enough information. What...

Maybe, don't have enough information.

What direction is the C2V aimed and what specific station or station is involved?

The cumulative insertion loss for a 2 port splitter, a 3 port splitter,...
Forum: Help With Reception 16-Dec-2016, 1:18 PM
Replies: 8
Views: 15,516
Posted By ADTech
Might need a longer paper clip for channel 10! ...

Might need a longer paper clip for channel 10! ;)

Seriously, though, a ClearStream 1V or 2V, mounted in a suitable location, should work very well.

Best of luck!
Forum: Help With Reception 15-Dec-2016, 11:09 PM
Replies: 11
Views: 43,983
Posted By ADTech
Seems like a plausible plan. Please let us know...

Seems like a plausible plan. Please let us know how it turns out.
Forum: Help With Reception 15-Dec-2016, 11:03 PM
Replies: 8
Views: 15,516
Posted By ADTech
Since you're literally in the shadow of the Miami...

Since you're literally in the shadow of the Miami towers, almost anything un-amplified should work.

For kicks, straighten a paper clip, insert it into the coax connector on your TV set and run...
Forum: Help With Reception 15-Dec-2016, 10:59 PM
Replies: 15
Views: 24,795
Posted By ADTech
Thanks for supplying the background info that...

Thanks for supplying the background info that only a broadcast station engineer would likely to know.
Forum: Help With Reception 15-Dec-2016, 3:31 PM
Replies: 15
Views: 24,795
Posted By ADTech
That would eliminate both of my previous...

That would eliminate both of my previous suggestions but, ironically, my recommendation might be the solution anyway.

Assuming that you're receiving periodic bursts of noise into your problem...
Forum: Help With Reception 14-Dec-2016, 11:21 PM
Replies: 11
Views: 43,983
Posted By ADTech
Hmm... Glad you raised questions. Looking...

Hmm... Glad you raised questions.

Looking closer at the map, it appears you're in a very unique position behind the only hill in south San Jose. Your signal analysis indicates that you have LOS...
Forum: Help With Reception 14-Dec-2016, 9:58 PM
Replies: 11
Views: 43,983
Posted By ADTech
DB4e would be a better, more appropriate, and...

DB4e would be a better, more appropriate, and less expensive choice.

Now that both KNTV's flagship NBC programming is on KSTS and KGO has their UHF 35 translator, it's no longer necessary for...
Forum: Help With Reception 14-Dec-2016, 6:36 PM
Replies: 15
Views: 24,795
Posted By ADTech
I'd recommend simply 1) moving the antenna so...

I'd recommend simply 1) moving the antenna so it's not right on the metal gutter and 2) move it so it isn't staring point blank into a tree. Both are commonly encountered but less obvious...
Forum: Help With Reception 13-Dec-2016, 12:37 PM
Replies: 7
Views: 19,296
Posted By ADTech
The use of the thrust bearing arrangement...

The use of the thrust bearing arrangement eliminates the need to limit the stub mast length. That restriction is in place to limit the lateral loading on the rotor motor's output shaft bearing.
...
Forum: TV Fool Discussion / Database Updates 12-Dec-2016, 2:51 AM
Replies: 13
Views: 68,918
Posted By ADTech
Just because it's on the TVFool list doesn't mean...

Just because it's on the TVFool list doesn't mean that the facility is on the air or has ever been built. The database picks up any issued construction permits (CP) and automatically includes them as...
Forum: Help With Reception 9-Dec-2016, 12:36 PM
Replies: 4
Views: 13,750
Posted By ADTech
The suggested HD7078P may be undersized due to...

The suggested HD7078P may be undersized due to non-obvious reasons. Also, the need for low-VHF may not exist.

While there are several low-VHF stations listed on the report, their fare may or...
Forum: Help With Reception 8-Dec-2016, 5:09 PM
Replies: 2
Views: 11,680
Posted By ADTech
Please refer to your previous thread. This is...

Please refer to your previous thread. This is likely a continuation and the old one was never followed up on.
Forum: Help With Reception 8-Dec-2016, 1:15 PM
Replies: 7
Views: 18,087
Posted By ADTech
The bowtie antenna is primarily a UHF-mostly...

The bowtie antenna is primarily a UHF-mostly design and usually has poor VHF performance. The only DIY 4-bay that I'd suggest investigating is the "M4" design which is well discussed in this thread...
Forum: Help With Reception 7-Dec-2016, 10:04 PM
Replies: 2
Views: 12,052
Posted By ADTech
You can probably get WSYR with a straightened...

You can probably get WSYR with a straightened paper clip! ;)

Try a 91XG with a Juice preamp. You have a complex situation and there's no point in halfway measures.

Aim the antenna due north,...
Forum: Help With Reception 7-Dec-2016, 9:34 PM
Replies: 7
Views: 18,087
Posted By ADTech
The devil, as they say, is in the details, many...

The devil, as they say, is in the details, many of which are important are missing.

1. Which Winegard? They have two generations of RV antennas, very, very different. One is very good on VHF but...
Forum: Help With Reception 6-Dec-2016, 4:40 PM
Replies: 8
Views: 18,451
Posted By ADTech
Odds are fair that a C5, by itself, might work...

Odds are fair that a C5, by itself, might work okay. The spread of the two VHF channels is such that the gain of the antenna is already going to be negative, but, since the signals are strong, it...
Forum: Help With Reception 6-Dec-2016, 12:11 AM
Replies: 5
Views: 14,352
Posted By ADTech
I see nothing that makes me believe that an attic...

I see nothing that makes me believe that an attic antenna will get anything from the US except, perhaps, very sporadically.
Forum: Help With Reception 5-Dec-2016, 11:40 PM
Replies: 11
Views: 18,238
Posted By ADTech
You're misunderstanding virtual vs real channels....

You're misunderstanding virtual vs real channels. It is the "real" channel information that's important. Your TVFool chart shows both of them.
Forum: Help With Reception 5-Dec-2016, 3:03 PM
Replies: 8
Views: 18,451
Posted By ADTech
The antenna he already has is too directional to...

The antenna he already has is too directional to be aimed due south and be expected to pick up the stations 75° off to the east.

If he's pointed the antenna directly in that direction and it...
Showing results 476 to 500 of 500
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