ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: 1 [2]  All   Go Down

Author Topic: Radio station in the pipes  (Read 923 times)

Tim McCulloch

  • SR Forums
  • Hero Member
  • *
  • Offline Offline
  • Posts: 20454
  • Wichita, Kansas USA
Re: Radio station in the pipes
« Reply #10 on: June 04, 2019, 10:50:31 pm »

and below the former Rampisham transmission site car remotes would not work and they would hear Russian coming out of their toasters!
ERP was a few MW if I remember correctly.
http://tx.mb21.co.uk/gallery/gallerypage.php?txid=1662

I see Auntie Beeb retired from that site a few years ago but the sign out front refers to Merlin Communications.  I see Merlin is considered a Telcom, so how much of Rampisham is actually putting out RF?
Logged
"Practicing an art, no matter how well or badly, is a way to make your soul grow, for heaven's sake. Sing in the shower. Dance to the radio. Tell stories. Write a poem to a friend, even a lousy poem. Do it as well as you possible can. You will get an enormous reward. You will have created something."  - Kurt Vonnegut

Jonathan Johnson

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2999
  • Southwest Washington (state, not DC)
Re: Radio station in the pipes
« Reply #11 on: June 04, 2019, 11:48:48 pm »

An office 100ft from an AM transmitter of the broadcast station?  Since AM stations either use the tower (or a series of towers for a directional array) or a wire going up tower as the antenna I just can't see an office constructed underneath one.

I just researched this, and I was wrong. It's an FM station, not AM. (It may be that 20 years ago there was an AM transmitter at this site, too. The studio at the site serves several stations.)

But the transmitting antenna is literally in the center of downtown, only 15m above ground level. 2000 watts.

And this office building definitely had a problem.

https://radio-locator.com/info/KRQT-1-FB
« Last Edit: June 04, 2019, 11:51:26 pm by Jonathan Johnson »
Logged
Stop confusing the issue with facts and logic!

Daniel Levi

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 263
Re: Radio station in the pipes
« Reply #12 on: June 05, 2019, 02:18:17 am »

I see Auntie Beeb retired from that site a few years ago but the sign out front refers to Merlin Communications.  I see Merlin is considered a Telcom, so how much of Rampisham is actually putting out RF?

Not much now, most of the towers have gone and the only one that are left either have satellite links, mobile phone equipment (although that is limited to a short stayed mast in front of the main building) and a low power TV relay.

In it's heyday it had BBC world service, Russia Today, Deutsche Welle amongst other broadcast using 34 wideband curtain arrays and 10 500kW transmitters.

It was quite a sight when you passed it (it was on a secondary "A" road between Crewkerne and Maiden Newton) but looks a bit forlorn now.

It's location is supposedly on a main electricity line and was originally built for war use, with civilian use coming later on. 

As for being owned by Merlin/Babcock, despite merlin being a telecommunications company they ended up owning all? of our SW sites.
Logged

Kevin Graf

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 308
Re: Radio station in the pipes
« Reply #13 on: June 13, 2019, 06:12:27 pm »

Jim Brown has some AES papers on RF interference in mic and audio circuits:

"Testing for Radio-Frequency Common Impedance Coupling (the "Pin 1 Problem") in Microphones and Other Audio Equipment"
http://www.audiosystemsgroup.com/AESPaperNYPin1-ASGWeb.pdf

"A Novel Method of Testing for Susceptibility of Audio Equipment to Interference from Medium and High Frequency Radio Transmitters"
http://www.audiosystemsgroup.com/AESPaperNY-SCIN-ASGWeb.pdf

"Radio Frequency Susceptibility of Capacitor Microphones"
http://www.audiosystemsgroup.com/AES-RFMicrophonesASGWeb.pdf

About 50 more Jim Brown papers and Power Points:
http://www.audiosystemsgroup.com/publish.htm
Logged
Speedskater

ProSoundWeb Community

Re: Radio station in the pipes
« Reply #13 on: June 13, 2019, 06:12:27 pm »


Pages: 1 [2]  All   Go Up
 



Page created in 0.053 seconds with 23 queries.