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RE: 139 W to 105W satellite move
To: CRTech <crtech@crtech.org>
Subject: RE: 139 W to 105W satellite move
From: Mike Shane <mshane@salemomaha.com>
Date: Wed, 12 Apr 2017 23:15:15 +0000
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Thread-topic: [CRTech] 139 W to 105W satellite move

Forgot to say that in attempting to point the DH to AMC-3, we got a nice 10 EbNo on a Unity box and close to it on another, equal to what the other larger dish produced.  But the iPump wouldn’t work with the DH at all.

 

Mike Shane

Salem Media Group Omaha

 

From: Mike Shane [mailto:mshane@salemomaha.com]
Sent: Wednesday, April 12, 2017 6:08 PM
To: CRTech
Subject: RE: [CRTech] 139 W to 105W satellite move

 

We have a DH 3.0 meter and had our doubts, especially after having trouble getting it to work on a retreat to -8 when -18 wouldn’t work.  So we had a programming scramble for awhile (about 18 hours actually) to get around it.  SRN’s internet backup feed saved the bacon.

 

This morning the DH dish was successfully repointed.  BUT, WW1 has around a 9, and Learfield a 13+.  So we may have more work to do.

 

For awhile, we considered (and attempted) pointing the DH at AMC-3, and if we could get good margin there, point the bigger Comtech dish now used with AMC-3 over to -18. 

 

For now, we’re considering it done, but warily.

 

Mike Shane

Salem Media Group Omaha

 

From: Mark Croom [mailto:markc@newmail.kinshipradio.org]
Sent: Wednesday, April 12, 2017 9:10 AM
To: CRTech
Subject: Re: [CRTech] 139 W to 105W satellite move

 

I haven't done as many as Mark Johnson but I've done a handful so far, and agree with his recommendations.

Yesterday I did a two-year-old DH Products 4.2 meter dish with a Norsat LNB. Amazing results compared with the other dishes I've done so far. EB of 12.0 on the Westwood One receiver, and 13.5->15 on the others. Except for the little Westport receiver used for STORQ store-and-forward formats on Westwood One. That one only got me 10.5 but I don't remember seeing figures any higher than that on other ones I have now on AMC-8 so it's probably the receiver.

At the moment I've got one dish that had to swing back because the LNB was just too bad. I've got a Harris Delta Gain dish of about ten feet that required offsetting the carrier in the Westwood One receiver just to make it lock. The other newer dish I have done, a 3.7 meter Comtech, worked fine with a recently purchased phase stable DawnSat LNB.

So the "give it a shot" recommendation is probably worthwhile advice. If you have a Westwood receiver you will want to use that as your gold standard for whether the system is good enough. If you're getting anything below EB of 10 you will want to consider your options even though it's working at the moment. That's where I'm at with the site that's got the Harris dish. EB is 9.2 or so and I just don't think that's good enough.

One man's limited experience.

 

Mark

MN

 

On Tue, Apr 11, 2017 at 5:13 PM, Pat Wahl <pwahl@wwib.com> wrote:

I know the focus of this group has been 89 degrees west, but some of us are starting to re-point our "other" dishes from AMC-8 to AMC-18.

 

Pat Wahl

WWIB/WOGO

Chippewa Falls, WI

 

References: 139 W to 105W satellite move
(Pat Wahl <pwahl@wwib.com>, 11 Apr 2017 22:13:15 -0000)
Re: 139 W to 105W satellite move
(Mark Croom <markc@newmail.kinshipradio.org>, 12 Apr 2017 14:10:08 -0000)
RE: 139 W to 105W satellite move
(Mike Shane <mshane@salemomaha.com>, 12 Apr 2017 23:08:34 -0000)
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