Forum: Antennas
13-Sep-2013, 4:53 PM
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Replies: 121
Views: 1,806,533
tripelo,
I have never heard of the DAT-75...
tripelo,
I have never heard of the DAT-75 although if the 91XG held its own or performed better I guess it doesn’t matter. I compared my new 91XG to my ~40 year old CM-4228 last year and with...
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Forum: Special Topics
12-Sep-2013, 3:53 AM
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Replies: 8
Views: 43,706
tripelo,
When I was doing surveillance work...
tripelo,
When I was doing surveillance work in the mid to late 80’s the company I was working for had a combination screen room/SCIF built for my testing. That’s when I had my own HP 8920’s...
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Forum: Special Topics
11-Sep-2013, 11:54 PM
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Replies: 8
Views: 43,706
Re: Lna-200
tripelo,
Thanks for your input.
I downloaded the data sheet for Q2, the Avago ATF-54143 and sure enough their data sheet says the 4F I read is the device code for that part. The date code...
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Forum: Special Topics
11-Sep-2013, 1:22 AM
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Replies: 8
Views: 43,706
Re: Lna-200
tripelo,
I have a large 4 ¾” articulating magnifying glass surrounded by a florescent light. Even with that and a 2 7/8” hand held magnifying glass some of the writing is too small for me to...
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Forum: Antennas
9-Sep-2013, 11:54 PM
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Replies: 121
Views: 1,806,533
LNA-200 findings
tripelo,
Here is a link to my LNA-200 findings -with pictures.
http://forum.tvfool.com/showthread.php?t=13636
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Forum: Special Topics
9-Sep-2013, 11:51 PM
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Replies: 8
Views: 43,706
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Forum: Antennas
7-Sep-2013, 2:54 PM
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Replies: 121
Views: 1,806,533
Tripelo,
For my first test, I...
Tripelo,
For my first test, I substituted the LNA-200’s power inserter in the garage for the RCA’s and pulled two cables off the HDB8X RCA amp and connected them to the LNA-200 to minimize...
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Forum: Antennas
7-Sep-2013, 5:42 AM
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Replies: 121
Views: 1,806,533
tripelo,
Two thought provoking posts in a...
tripelo,
Two thought provoking posts in a row. Today’s almost sounds like a conclusion. I’ve been looking forward to these every Friday.
I bought one of Winegards new LNA-200’s. It didn’t...
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Forum: Antennas
30-Aug-2013, 2:55 AM
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Replies: 18
Views: 124,440
ADTech & All,
For what it’s worth, I...
ADTech & All,
For what it’s worth, I bought one of the Winegard LNA-200’s from Solid Signal for $32.99 + $5.95 shipping with promo code AMP25 –just to try. It is scheduled to be delivered...
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Forum: Antennas
24-Aug-2013, 7:53 PM
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Replies: 121
Views: 1,806,533
tripelo,
I liked your explanation of how...
tripelo,
I liked your explanation of how uniform daytime heating can produce smaller temperature gradients, limiting how far out a refracted signal travels. I know it happens because I...
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Forum: Antennas
24-Aug-2013, 1:58 AM
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Replies: 121
Views: 1,806,533
tripelo,
WOW! I don’t even want to know how...
tripelo,
WOW! I don’t even want to know how long it took you to pull all this all together! I just hope you’re not going to bill me for it later?
This is great work and way beyond my ability...
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Forum: Antennas
17-Aug-2013, 9:10 PM
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Replies: 121
Views: 1,806,533
Antenna or Spatial Diversity
tripelo,
From the little bit of reading I’ve done on the subject, VHF is more prone to rapidly-changing multipath conditions than UHF although the new demodulators with long equalization spans...
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Forum: Antennas
16-Aug-2013, 10:58 PM
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Replies: 121
Views: 1,806,533
NTE/ECG U-106 Rotor
tripelo,
I’m not sure that the programmable “digital display” 3-wire rotors employ two synchronous motors (one in the control and one on the mast).
From what I’ve been able to gather,...
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Forum: Antennas
16-Aug-2013, 6:23 PM
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Replies: 121
Views: 1,806,533
tripelo,
That’s a lot of separation between...
tripelo,
That’s a lot of separation between your long Yagi’s. Do you think that ~1.5 wavelengths of spatial diversity is mitigating your frequency selective fading? It would certainly help...
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Forum: Antennas
10-Aug-2013, 5:58 PM
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Replies: 6
Views: 121,177
RE: Compare Original CM-777x to TVPRAMP1R
tripelo,
Thanks for posting the photos.
It does look like it could be a re-layout of the Channel Master legacy design, only with a higher parts count. Usually the goal is to make things...
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Forum: Antennas
9-Aug-2013, 7:33 PM
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Replies: 121
Views: 1,806,533
tripelo,
Another interesting read.
...
tripelo,
Another interesting read.
You may have listened to the Lone Ranger but I bet you don’t still have a Hopalong Cassidy wristwatch!
I was discouraged by ADTech’s findings with...
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Forum: Antennas
8-Aug-2013, 3:29 AM
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Replies: 6
Views: 121,177
RCA TVPRAMP1R Amplifier
I want to report my findings with my new RCA TVPRAMP1R Amplifier. This looks like one of the few remaining switchable dual VHF/UHF input, mast mounted, pre-amps. with a switchable FM trap. I got mine...
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Forum: Antennas
3-Aug-2013, 5:08 PM
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Replies: 121
Views: 1,806,533
tripelo,
This is starting to remind me of a...
tripelo,
This is starting to remind me of a time when we listened to the radio every Saturday night for the next installment of Boston Blackie or the Shadow –great stuff.
Yesterday, Time...
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Forum: Help With Reception
30-Jul-2013, 6:06 AM
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Replies: 6
Views: 20,658
I am concerned that all of your signals are...
I am concerned that all of your signals are listed as 1-Edge & 2-Edge. This typically means that at your location they are being blocked. In your case probably by hills or mountains. The signals will...
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Forum: Help With Reception
30-Jul-2013, 12:57 AM
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Replies: 6
Views: 20,658
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Forum: Antennas
28-Jul-2013, 2:30 AM
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Replies: 121
Views: 1,806,533
tripelo,
Clear, concise & very interesting....
tripelo,
Clear, concise & very interesting. Your installments keep me anticipating and coming back for more. At my age, I hope you make some miraculous breakthroughs on aging but I’m not sure...
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Forum: Help With Reception
22-Jul-2013, 11:54 PM
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Replies: 33
Views: 43,546
Try this link:...
Try this link: http://partners.titantv.com/default.aspx
You may have to try different ZIP codes to pickup all your channels.
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Forum: Antennas
18-Jul-2013, 7:42 PM
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Replies: 121
Views: 1,806,533
Re: Long Yagi for VHF (Ch 8-11)
tripelo,
When do we get the rest of the story? Anxiously awaiting comparison results. How close were you able to come to 7 dB gain above that obtained with a pair of YA-1713 antennas with coaxial...
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Forum: Help With Reception
15-Jul-2013, 11:58 PM
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Replies: 33
Views: 43,546
toadcat,
Unlike your TV Fool report, FM Fool...
toadcat,
Unlike your TV Fool report, FM Fool resets so the link takes us to a page that needs all your information to complete. You can take a screen shot of your report and add it as an...
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Forum: Help With Reception
13-Jul-2013, 2:42 AM
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Replies: 33
Views: 43,546
toadcat,
Unless it’s right in your...
toadcat,
Unless it’s right in your backyard I don’t think an AM station will bother you (your VHF/UHF amplifier).
I have a -15.6 dBm UHF TV station & a -13.4 dBm FM station co-located on...
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