[CRTech] Christian Radio Tech [MSG 79524]
[Thread Prev] [-- Thread Index --] [Thread Next] [Date Prev] [-- Date Index --] [Date Next]
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 23:08:25 +0000
Accept-language: en-US
Authentication-results: crtech.org; dkim=none (message not signed) header.d=none;crtech.org; dmarc=none action=none header.from=salemomaha.com;
Content-language: en-US
In-reply-to: <CAPQBvqpgtBivFYr1P2iOjuZbeVQF_SLe2MNa-7XgkgSJG2=+vQ@mail.gmail.com>
References: <CAA8ua=waRVxKdTVWfiC+yMt1_LydV-Dv47qrsES7jKFUz0FNXg@mail.gmail.com> <CAPQBvqpgtBivFYr1P2iOjuZbeVQF_SLe2MNa-7XgkgSJG2=+vQ@mail.gmail.com>
Spamdiagnosticmetadata: NSPM
Spamdiagnosticoutput: 1:99
Thread-index: AQHSsxDTS0cpW/LdKkSpELrD1hCxHKHBxsyAgACU1DA=
Thread-topic: [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.





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


Chippewa Falls, WI


Follow-Ups: RE: 139 W to 105W satellite move
(Mike Shane <mshane@salemomaha.com>, 12 Apr 2017 23:15:28 -0000)
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)
Prev by date: Re: ASI Config
(Kevin Kidd, 12 Apr 2017 21:30:55 -0000)
Next by date: RE: 139 W to 105W satellite move
(Mike Shane, 12 Apr 2017 23:15:28 -0000)
Prev by thread: Re: 139 W to 105W satellite move
(Mark Croom, 12 Apr 2017 14:10:08 -0000)
Next by thread: RE: 139 W to 105W satellite move
(Mike Shane, 12 Apr 2017 23:15:28 -0000)