Hi VHF
Please pardon my amateur questions but this inquiring mind would like to know
1. Is the 5db of gain on hi-VHF of the C5 and the CM4228 equivalent? Are their cartridges impedances equivalent for hi-VHF? Is their gain across 7-13 relatively equivalent? 2. Is VHF wave absorption relatively blind to UHF reflectors? Of note, the C2 and C4 have the VHF dipole behind the upper part of the reflector. Combo antennas have the VHF elements behind the UHF array which I understand is a compromise. All things being equal, how much more efficient is the 2 antenna setup? 3. Please contrast the pro's and con's of balun vs cartridge signal efficiency for coax insertion. 4. If your weakest channel is hi-VHF, mounting it highest would seem acceptable to me ? ie the stacker as an example Many thanks again for the expertise!! |
There is no reason to try receiving a VHF channel using a CM 4228. The 4228 is a UHF only design. If your VHF stations are in the same direction as your UHF stations consider an ANT 751, HD 7694P, or Channel Master digital advantage. If you need or want a separate ZvHF antenna take a look at the Stellar labs 30-2476.
|
4228 HD is capable of some VHF
Sorry, since I don't own a 4228HD I really can't say that much about it. However, I've heard it can pick up some VHF. Apparently the old 4228 was better and actually picked up some VHF although they are supposed to be UHF only..
Although his website isn't often updated, Tom Ballister has done some great testing with data to back it up. http://www.antennahacks.com/Comparis..._CM4228Old.htm http://www.antennahacks.com/Comparis...228_vs_DB8.htm I think it almost every case the two antenna solution is the way to go for high levels up reception of UHF and VHF. I think Tower guy has a good suggestion. With the repack coming, it looks like the 4228HD is better on lower channels and teaming one of those up with a 30-2476 sounds like a good combination with the new repack. I have the 30-2476 and it is a well made and highly capable VHF High antenna. Add to that there's not much variety anymore for VHF only antennas. Incidentally, it can actually pick up some UHF. Read Tom Ballister's comparison on his site. As far as I know, this is the only place to get the 30-2476. They actually have a deal if you buy four of them, probably not practical for most. https://www.newark.com/stellar-labs/...P_LastViewed_1 I can't answer your technical questions, maybe somebody will see this post, possibly answer your technical questions, which I would like to hear myself. |
Thanks for the replies!
The reason for the question was Channelmaster website documents boast a 5db gain on hi-VHF and I couldn't find any posts on any forum where CM implemented the changes Nist suggested to the harness since 2010. My current setup is AD C4 with an antennacraft Y7-13 joined with the CM Amplify plus split to two TV's. It works well. My questions were just various things that make me scratch my head. The experts on these forums as with any experts in any field do and should keep advertising as honest as possible. My cartridge question basically asks if that is a balun surrounded by plastic or is there somehow more efficiency to signal transfer? |
Quote:
Is a well built antenna and a good price sellers LAB they have 2kinds of Hi GaIN vhf outdoor tv antennas the difference between the two antennas is The size I have used both and the performance was excellent with channel master 7777amp in southbrige MASS 01550.And antennas higth was 60ft receive of 25 hi band vhf channels so then I used the big seller's LAB antennas stagger stacked with a johansson mast mount AMP with my stacked side by side HDB91,for my uhf BROADCASTING TOWER's 80miles away 35channels + The seller's LAB hi gain vhf,stagger stacked receiving channel's 1500miles away The cost of the hole seat up with the amp $300dollars well spent!!! And do not forget about the Amazon fire stick&the internet all the movies and doun't for get about the sport's& no black outs like you get frum DISH or hi CABLE Bill's |
1 Attachment(s)
Quote:
https://forum.tvfool.com/attachment....1&d=1556376429 https://i.imgur.com/qJNwDs2.jpg Quote:
Quote:
Quote:
Quote:
Quote:
There are several types of baluns. 1. Conventional ferrite core balun that is good for UHF and VHF. 2. Printed circuit balun now used for UHF antennas; not good for VHF. 3. Halfwave coaxial balun; low loss, but good for only one TV band: UHF, VHF-High, or VHF-Low. Quote:
|
Quote:
Thank you Rabbit ears for your input.Qsl Hf ?? And when I used the Winegrud 8200U when you get rid of the black box and hook up A vhf/uhf amp to it what A big improvement 35:dbg vhv.wow/uhf45:dbg double wow. And when stacking them Winegrud 's amp on tv on one person on the roof to adjust the ANTENNA apart and the other person at the tv sets when the picture come into play WOW that's awesome!!!!lol I like four shire things and the best results on my rf Polarization and RECEIVE range WOW!!!on the vhf.&the other end uhf 91xg,Double. WOW!! |
All times are GMT. The time now is 2:24 PM. |
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © TV Fool, LLC