Hi Mark,
I run a business which services and installs Digital Television antenna's and have recently had to involve ACMA (Australian communications and Media Authority) to sort out interference problems for consumer TV's. I have to sign off that I have tested the antenna system with a suitable meter/spectrum analyzer. Once this done I provide this data to ACMA who then commences an investigation into possible sources of interference. In your instance, I suggest you should involve your radio technician or company that supplies and services your equipment. They will have the knowhow to test your systems to ascertain that the equipment is functioning correctly including the antenna systems. This being the case the next course of action is to contact the ACMA, these are the people that license your equipment and allocate the frequency you are operating on (High band VHF). Their responsibility is to administer and police the radio spectrum for all users. They have spectral analysis equipment with which they can investigate any sources of interference and the legislative power to take action against the source. In the worse case scenario ACMA may allocate your company with a new frequency within the VHF band (unfortunately this will mean retuning the radio's. I hope this is of help to you. John Parncutt From: [email protected] [mailto:[email protected]] On Behalf Of Gary Stevenson Sent: 08 April, 2014 16:44 To: 'Discussion of issues relating to Soaring in Australia.' Subject: Re: [Aus-soaring] Non Aviation Radio Communication Issue Mark, You seem to be receiving some good ideas, but I wonder if they are really addressing the issue? If I read you correctly, in comparison to (relatively recent??) good past performance, thing have got worse without anything material being changed in the system. If that is the case then there must either be an external cause, or something has changed within the system that you do not know about. Considering the former. What has changed around Benalla in the recent past that might affect your reception? Is it a matter of atmospherics: Is anybody else using this band - maybe in Shepparton - experiencing similar problems? Considering the latter, start with the simplest things first - ie poor connections. Mal Bruce made some good suggestions here. Maybe you just have a replacement parts issue? Does your company have a reliable technician, to maintain/service the gear? If on the other hand you actually HAVE made one or more changes to the system, then you need to revisit those changes, and see if one (or a combination), are the cause of the problem . Good luck. Regards, Gary From: [email protected] [mailto:[email protected]] On Behalf Of Mark Goodley Sent: Tuesday, 8 April 2014 8:33 AM To: [email protected] Subject: [Aus-soaring] Non Aviation Radio Communication Issue Hello All, As some of you know I work for the taxi company here in Benalla. We are having issues with our VHF radio's. Was just wondering if some of you with more knowledge than I could offer some advice ? The problem we are have is with receiving transmissions, a lot of static and a lot of times unreadable and yet transmission is fine. The radios run at 150.2 mHz. These issues are only over a distance of 3-5 km's. We use to get 15 k +. And have been getting worse over the last 6-12 months. Cheers Mark Goodley _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4354 / Virus Database: 3722/7303 - Release Date: 04/04/14
<<image001.gif>>
_______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
