TV Broadcast Towers & Transmitters (photos, vids) - Page 8 - Canadian TV, Computing and Home Theatre Forums

Billsmith · 2010-02-14, 03:05 PM

The temporary mast construction has now been completed ready to carry all of the existing program services until the DSO is complete when the mast will be dismantled.

stampeder · 2010-02-21, 02:44 PM

Phase II (update to video in Post #95)

http://www.youtube.com/v/ES8HyxQPQk8

Wharfe · 2010-03-18, 07:56 PM

The tower in St. John's hosted some non-CBC radio stations, an XM Sat Radio repeater, Rogers GSM site, along with a ton of other funny antennas & equipment on the tower.. Great looking facility..

Sorry for the poor pic quality.

Note the large number of cables. The white circle is a receive dish for the XM repeater:

Macman · 2010-03-20, 01:22 AM

Holy Schnikes! Now THAT's a cable rack! I was just reminded about the transmitter fire that happened here in 2007. I think 4 radio stations and one tv station went down when something caught fire at the 700 ft level. There was a thread about it here.

ericball · 2010-03-23, 05:44 PM

This is an antenna at Cape Bonavista, Newfoundland. As you can see, the top is coated in ice. This picture was taken almost a week after an ice & freezing rain storm went through the area, collapsing power poles and interrupting power to many communities for five days.

mr weather · 2010-03-23, 06:20 PM

Funny how the 4-bay antennas look clean. Wonder if they sent some high wattage RF to heat things up.

roger1818 · 2010-03-24, 10:39 AM

Quote:

Originally Posted by mr weather

Funny how the 4-bay antennas look clean. Wonder if they sent some high wattage RF to heat things up.

No extra power needed. The power used to broadcast will heat things up nicely. To give you an idea, I know someone who burnt his finger because he touched a connector that wasn't tightened enough, and this was only for a cell phone network transmitter.

stampeder · 2010-03-24, 10:47 AM

During and after WWII with workers performing maintenance on the first generations of live radar stations, and later when microwave links were being widely constructed in the 1950s around the world, there were some "accidents" in which workers remained in the beam too long, so that even while the temperatures might have been in the -20C range and the dishes, reflectors, or radomes were ice-covered, the RF activity was heating up their internal body tissue as they worked. Some of those guys died of it after time; their internal organs had been cooked. There just wasn't enough knowledge back then about the dangers. Anyway it just reminds us that with broadcast antennas in the winter looks can be deceiving.

mr weather · 2010-03-24, 12:29 PM

Quote:

Originally Posted by roger1818

To give you an idea, I know someone who burnt his finger because he touched a connector that wasn't tightened enough, and this was only for a cell phone network transmitter.

In my early days of amateur radio I got a burn due to "RF in the shack" (before I fully understood the importance of proper RF grounding). It wasn't pleasant.

Wharfe · 2010-03-24, 10:53 PM

Wow, thanks for the great pics & great info guys...

Are you aware of what that tower is being used for? Wonder what the power output is, etc..

Going to have to read up more on this RF burn.. what an amazing amount of power they are using in the big transmitters if you can get burned from the power used for cell equipment :|

L'inquisiteur · 2010-03-26, 07:58 AM

Actually the antenna in the tower look more like a Sinclair antenne SRL310C4 or SRL 210C4. a Mobile radio antenne for VHF or UHF. Generally the power in those antenna are around 30 watts to 100 watts

Mike FM · 2010-06-20, 02:57 AM

Hello Hello everyone.
As for Omni in Calgary, there already is infrastructure up at the Harvard site ready and waiting. They have a Rohde & Schwarz transmitter for CKAL-DT, then 3 racks for equipment and enough space for the second transmitter (Omni) to go on the right side of those racks.
It truly is a beautiful install.
I believe the work done by the fellow from Rogers (I won't give his name out because I don't know him personally) is a bar that has been set very high.

From what I've heard, last summer a lighting strike took out a number of the strobes and the beacon has been stuck on night for months now. As well, the light boxes are aimed more towards the sky to avoid splash on the homes around the site.

Here is CKAL-DT:

http://commondatastorage.googleapis....l/36992237.jpg

Wharfe · 2010-06-20, 08:50 PM

Wow, what a great looking install. Thanks for sharing!
Are there any existing pictures available online that give a view of this site from outdoors?

Billsmith · 2010-06-20, 09:44 PM

Wowww - Great - Very good looking job! Thanks for the picture!

Wharf - No problem! I can easily take some photos when I get home!

But the first job for me will be to re-adjust and reallocate my own receive antennas by the looks of

things!

L'inquisiteur · 2010-06-20, 10:50 PM

Wow, nice installation, looks like a Rohde And Schwarz Liquid Cool.

2010-02-14, 03:05 PM	#106
Billsmith Join Date: Apr 2009 Location: Banff Trail district, Calgary. Posts: 437	Sutton Coldfield Temporary mast for the DSO duration only. The temporary mast construction has now been completed ready to carry all of the existing program services until the DSO is complete when the mast will be dismantled.

2010-02-21, 02:44 PM	#107
stampeder OTA Forum Moderator Join Date: Jan 2005 Location: North Delta, BC (96Av x 116St) Posts: 23,338	Phase II of KOMO Seattle TV broadcast antenna upgrade Phase II (update to video in Post #95) http://www.youtube.com/v/ES8HyxQPQk8 Last edited by stampeder; 2011-07-09 at 01:20 PM.

2010-03-18, 07:56 PM	#108
Wharfe Join Date: Jan 2007 Location: St. John's, NL Posts: 565	CBC St. John's, NL The tower in St. John's hosted some non-CBC radio stations, an XM Sat Radio repeater, Rogers GSM site, along with a ton of other funny antennas & equipment on the tower.. Great looking facility.. Sorry for the poor pic quality. Note the large number of cables. The white circle is a receive dish for the XM repeater: Last edited by stampeder; 2010-03-18 at 09:51 PM. Reason: Moved from another thread

2010-03-20, 01:22 AM	#109
Macman Join Date: Feb 2009 Location: Winnipeg, MB Posts: 469	Holy Schnikes! Now THAT's a cable rack! I was just reminded about the transmitter fire that happened here in 2007. I think 4 radio stations and one tv station went down when something caught fire at the 700 ft level. There was a thread about it here. __________________ Authorized Service Provider for MTS Allstream. Any views expressed are my own.

2010-03-23, 05:44 PM	#110
ericball Join Date: Apr 2008 Posts: 172	Cape Bonavista, Newfoundland This is an antenna at Cape Bonavista, Newfoundland. As you can see, the top is coated in ice. This picture was taken almost a week after an ice & freezing rain storm went through the area, collapsing power poles and interrupting power to many communities for five days.

2010-03-23, 06:20 PM	#111
mr weather Veteran Join Date: Nov 2002 Location: Mississauga, Ontario Posts: 1,950	Funny how the 4-bay antennas look clean. Wonder if they sent some high wattage RF to heat things up.

2010-03-24, 10:47 AM	#113
stampeder OTA Forum Moderator Join Date: Jan 2005 Location: North Delta, BC (96Av x 116St) Posts: 23,338	Watch out for that "Hot" antenna During and after WWII with workers performing maintenance on the first generations of live radar stations, and later when microwave links were being widely constructed in the 1950s around the world, there were some "accidents" in which workers remained in the beam too long, so that even while the temperatures might have been in the -20C range and the dishes, reflectors, or radomes were ice-covered, the RF activity was heating up their internal body tissue as they worked. Some of those guys died of it after time; their internal organs had been cooked. There just wasn't enough knowledge back then about the dangers. Anyway it just reminds us that with broadcast antennas in the winter looks can be deceiving.

2010-03-24, 10:53 PM	#115
Wharfe Join Date: Jan 2007 Location: St. John's, NL Posts: 565	Wow, thanks for the great pics & great info guys... Are you aware of what that tower is being used for? Wonder what the power output is, etc.. Going to have to read up more on this RF burn.. what an amazing amount of power they are using in the big transmitters if you can get burned from the power used for cell equipment :\|

2010-03-26, 07:58 AM	#116
L'inquisiteur Join Date: Nov 2005 Posts: 166	Actually the antenna in the tower look more like a Sinclair antenne SRL310C4 or SRL 210C4. a Mobile radio antenne for VHF or UHF. Generally the power in those antenna are around 30 watts to 100 watts

2010-06-20, 02:57 AM	#117
Mike FM Join Date: Jan 2010 Location: Alberta Posts: 174	CKAL-DT Gear Update Hello Hello everyone. As for Omni in Calgary, there already is infrastructure up at the Harvard site ready and waiting. They have a Rohde & Schwarz transmitter for CKAL-DT, then 3 racks for equipment and enough space for the second transmitter (Omni) to go on the right side of those racks. It truly is a beautiful install. I believe the work done by the fellow from Rogers (I won't give his name out because I don't know him personally) is a bar that has been set very high. From what I've heard, last summer a lighting strike took out a number of the strobes and the beacon has been stuck on night for months now. As well, the light boxes are aimed more towards the sky to avoid splash on the homes around the site. Here is CKAL-DT: http://commondatastorage.googleapis....l/36992237.jpg Last edited by stampeder; 2010-06-20 at 08:32 PM.

2010-06-20, 08:50 PM	#118
Wharfe Join Date: Jan 2007 Location: St. John's, NL Posts: 565	Wow, what a great looking install. Thanks for sharing! Are there any existing pictures available online that give a view of this site from outdoors?

2010-06-20, 09:44 PM	#119
Billsmith Join Date: Apr 2009 Location: Banff Trail district, Calgary. Posts: 437	Wowww - Great - Very good looking job! Thanks for the picture! Wharf - No problem! I can easily take some photos when I get home! But the first job for me will be to re-adjust and reallocate my own receive antennas by the looks of things!

2010-06-20, 10:50 PM	#120
L'inquisiteur Join Date: Nov 2005 Posts: 166	Wow, nice installation, looks like a Rohde And Schwarz Liquid Cool.

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