site Search:


 
    All Forums Hot Topics Gallery






how-to block ads


 
Search Topic:
Share Topic
Posting?
Post a:
Post a:
Links: ·Forum FAQ ·diy online
AuthorAll Replies

ke4pym
Premium
join:2004-07-24
Charlotte, NC
Reviews:
·VOIPo
·Verizon Broadban..
·RoadRunner Cable
·Northland Cable ..

reply to alkizmo

Re: Hopeless or possible? HDTV OTA

If you wanna get really freaky:

Find a preamp with 300-ohm input. Then get some of the old school twin lead cable to run from the antenna to the pre-amp. Skip the balun all together. Switch to 75-ohm coax after the preamp on the mast.

Twin lead has some of the best signal interference rejection out there.

You *have* to use stand offs though. The cable can't come anywhere near your mast.

Careful with the extra antennas. Those can induce multipath issues. But most modern tuners are pretty well equipped to handle that kind of thing now.


TheTechGuru

join:2004-03-25
TEXAS
Reviews:
·WesTex Connect

said by ke4pym:

If you wanna get really freaky:

Find a preamp with 300-ohm input. Then get some of the old school twin lead cable to run from the antenna to the pre-amp. Skip the balun all together. Switch to 75-ohm coax after the preamp on the mast.

Twin lead has some of the best signal interference rejection out there.

You *have* to use stand offs though. The cable can't come anywhere near your mast.

Careful with the extra antennas. Those can induce multipath issues. But most modern tuners are pretty well equipped to handle that kind of thing now.

Meh, I prefer a inline line powered preamp screwed right into the matching transformer on the antenna.
--
CompTIA Network+ Certified


Jack_in_VA
Premium
join:2007-11-26
Mathews, VA
kudos:1

reply to ke4pym

said by ke4pym:

If you wanna get really freaky:

Find a preamp with 300-ohm input. Then get some of the old school twin lead cable to run from the antenna to the pre-amp. Skip the balun all together. Switch to 75-ohm coax after the preamp on the mast.

Twin lead has some of the best signal interference rejection out there.

You *have* to use stand offs though. The cable can't come anywhere near your mast.

Careful with the extra antennas. Those can induce multipath issues. But most modern tuners are pretty well equipped to handle that kind of thing now.

Why would someone want to revert back to 1950's technology with 300 ohm twinlead? You'll have ghosting and multi-path freezes and blocking. The preamp goes right at the antenna so there's really no need for twinlead.

Thursday, 20-Jun 01:37:54 Terms of Use & Privacy | feedback | contact | Hosting by nac.net - DSL,Hosting & Co-lo
over 13.5 years online © 1999-2013 dslreports.com.
Most commented news this week
Hot Topics