Comstudy AM Critical Hours Error, Canadian Class-A

Submitted by Mueller on Fri, 2010-03-26 01:05.

Comstudy is calculating the allowable radiation to cross-border Class-A stations from US class B or D stations using the wrong procedure. The correct formula per Appendix 8 of Annex 2 to the US-Canadian AM agreement (1984) is F = 0.9D - 290, where D is the distance from the subject class-B/D transmitter site and the foreign 0.1 mv/m groundwave contour. F is the allowable radiation toward that point.

Comstudy appears to be using the US rules for this, which is incorrect. This has was discovered after an FCC deficiency letter caused by the error.

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Submitted by Mueller on Sat, 2011-11-05 09:00.

Had another application kicked back because of this. It is very unprofessional of you to not even acknowledge this careless error in Comstudy.

Submitted by Mick on Tue, 2011-11-15 11:14.

I'll try to round up an answer for you.

Submitted by Mueller on Sat, 2015-08-22 12:15.

Five years with not even a "we can't fix it" is ridiculous.

Submitted by Mick on Mon, 2015-08-24 09:49.

Hi, Mark.

We've definitely not walked away from ComStudy, and on the contrary are making changes we plan to release this year, along with a maintenance agreement that should be beneficial to everyone. I'll try to get you an answer for the AM issues.

--
Mick
RadioSoft

Submitted by Mueller on Wed, 2016-12-28 14:12.

Well, I've waited patiently and STILL NO fix for this and many other issues, plus none of the "changes" or new maintenance agreement.

Is this orphaned? You don't seem to have any problem taking my money for database updates.

Submitted by Mick on Thu, 2017-01-05 12:03.

Hey, Mark.

Peter may have already contacted you off the site, but here's the latest.

We've actually been working on both, but unfortunately, it doesn't appear that way. We've made a number of AM changes, but are still going through the testing before any releases. This includes both a number of updates to ComStudy in general as well as AM-specific changes. For now, I have a new configuration file for you to use which I'll email to you shortly.

Thanks for your patience - it is indeed appreciated.

Submitted by Mick on Fri, 2017-01-06 11:47.

Hey, Mark - let me know if you didn't receive the message yesterday since some mail servers block attachments.

Submitted by Mueller on Tue, 2017-06-13 13:35.

A version update is on the main website but not in my downloads. Also, there is a "client login updater" which I am not going to attempt to run until I know what it is going to do (too many times bitten).

What's up with this?

Submitted by Mick on Tue, 2017-06-13 16:30.