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RE: Line Pressure
To: CRTech <crtech@crtech.org>
Subject: RE: Line Pressure
From: "Schmitke, Gregory I" <GISchmitke@unwsp.edu>
Date: Fri, 17 Nov 2017 18:17:29 +0000
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In-reply-to: <967BE2BFA7A54A35A82855C02E2D8E4F@bruces>
References: <CAP8KTHbuTE+UUjRQJ37nsDYREFC=LSzz6uTMpTJf27FvL+7arg@mail.gmail.com> <967BE2BFA7A54A35A82855C02E2D8E4F@bruces>
Thread-index: AQHTX8Vh4028bmHdW0qksRbz3Wo6hqMY2kISgAAE7UA=
Thread-topic: [CRTech] Line Pressure

We use a Pure Gas P4200W with a pressure tank so the dry air pressure in the feedline is fairly constant, , it will fluctuate about ½ a pound.

We run right around 5psi.

It is a very good unit with their Tech support is very good as well.

It is also remotely accessible by IP.

It tied in very nicely to our remote control and it also has it’s own alarms.

Greg Schmitke



From: Bruce [mailto:bruce@psalmfm.org]
Sent: Friday, November 17, 2017 11:49 AM
To: CRTech <crtech@crtech.org>
Subject: Re: [CRTech] Line Pressure


We have had an RFS SDP-10 in service for 34 years. (Compressor with desicant)

We run about 2 1/2 lbs pressure. It was set at that when I got here. :) 

I have since read that a couple pounds was sufficient - and the limiting factor is the antenna seals.

We have changed the SPD-10's O rings and seals a couple of times, and replaced the desicant half a dozen times. The thing just keeps working.




Int'l Falls, MN


----- Original Message -----

To: CRTech

Sent: Friday, November 17, 2017 10:58 AM

Subject: [CRTech] Line Pressure


Hey Guys:


I'm curious to know how much pressure you put into your transmission line and how you arrived at that number. I want to compare that to what we set ours to.


How many pounds of pressure do you set your line pressure to?


Also, what do you use?  Do you use a nitrogen tank, dehydrator, or some form of air compressor with desiccant at the output.   And why? 


I find it disappointing that Phartronics may be out of business.  As much as Willie loves the name of the company, they made a good product that we have used at most of our transmission sites.


Have a great and quiet Thanksgiving!




Steve Tuzeneu,  CBT 

Network Staff Engineer

BBN Radio Network

P.O. Box 7300

Charlotte , NC 28241-7300 

704-523-5555 Extension 138
Member: Society of Broadcast Engineers

G.R.O.L./N1XXE-Extra Class Operator


References: Line Pressure
(Steve Tuzeneu <stuzeneu@gmail.com>, 17 Nov 2017 16:58:55 -0000)
Re: Line Pressure
("Bruce" <bruce@psalmfm.org>, 17 Nov 2017 17:49:34 -0000)
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