AirNav RadarBox
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
 


Author Topic: Dublin \ Ireland RB Reception  (Read 7786 times)

0 Members and 1 Guest are viewing this topic.

Dub33

  • New Member
  • *
  • Posts: 43
Dublin \ Ireland RB Reception
« on: January 25, 2008, 12:01:35 AM »
Hi All,

I am a new user of the RB in Dublin, Ireland.

I live quite close to Dublin Airport and I am able to pick up all departures from RWY 10 at Dublin Airport, (as soon as they leave the ground), however, I have noted that the RB signal for arrivals over Howth Head at the Ameli point are being consistently lost at Ameli.

Do I have a filter switched on, which is casuing this loss of reception on these arrivals onto rwy 28 via Ameli \ Howth head, or is it more probable that someting is blocking my line of sight to the arriving aircraft over Ameli \ Howth Head. This quite problematic for me, as circa 85% of arrivals \ departures at Dublin, use runway 10/28.

I have included a screen shot with the Polar diagram switched on and without the Polar diagram switched on, if it helps

If it is  reception problem would a Jim M-75 Preamp solve the problem? Any help is welcome..

[attachment deleted by admin]

AirNav Support

  • AirNav Systems
  • Hero Member
  • *****
  • Posts: 4124
Re: Dublin \ Ireland RB Reception
« Reply #1 on: January 25, 2008, 10:17:43 AM »
Sounds like a line of sight issue. Can you see the aircraft visually from your location when on approach?

A preamp will help but won't get round line of sight issues. A intresting calculator below which can work out the distance you can pick up aircraft depending on the height of your antenna and aircraft. (if there are no obstructions)

http://radarproblems.com/calculators/horizon.htm
Contact Customer/Technical support via:
http://www.airnavsystems.com/contact.html
[email protected]

Dub33

  • New Member
  • *
  • Posts: 43
Re: Dublin \ Ireland RB Reception
« Reply #2 on: January 25, 2008, 10:27:20 AM »
Hi,

Unfortunately no, i can't see the arrivals on approach from Ameli \ Howth head. I think they are down to circa 900ft - 1300ft at that stage, so "line of sight" prevents it.

Thanks for the assistance.

Regds
Dub33

Dub33

  • New Member
  • *
  • Posts: 43
Re: Dublin \ Ireland RB Reception
« Reply #3 on: January 25, 2008, 10:50:52 AM »
Hi,

Just an update,

Thanks a lot -- I adjusted the height & position of the antennae upwards by circa 7ft. it made a BIG difference.

Attached a polar diagram of the new reception and I can track the arrivals down to 2 miles out, at 600ft.

Dub33

[attachment deleted by admin]

piper-pilot

  • Jr. Member
  • **
  • Posts: 53
  • CHRIS @ ML&S
Re: Dublin \ Ireland RB Reception
« Reply #4 on: January 25, 2008, 11:05:25 AM »
I suggest an outside antenna as hi as possible with a hi gain whip that will improve your close in performance as well as long range.

Regards
CHRIS @ ML&S

Dub33

  • New Member
  • *
  • Posts: 43
Re: Dublin \ Ireland RB Reception
« Reply #5 on: January 25, 2008, 01:43:45 PM »
Cheers, and will do,

I'm looking into some accessories on ML& Sons Ltd

http://www.hamradio.co.uk/

Regards


AirNav Development

  • AirNav Systems
  • Hero Member
  • *****
  • Posts: 2545
    • AirNav Systems
Re: Dublin \ Ireland RB Reception
« Reply #6 on: January 25, 2008, 02:11:21 PM »
We will soon have on our main page a special antenna kit where users would be able to buy a all in one kit to improve their reception. Should be ready in 1 week. You may prefer to wait.

Dub33

  • New Member
  • *
  • Posts: 43
Re: Dublin \ Ireland RB Reception
« Reply #7 on: January 25, 2008, 06:04:07 PM »
Hi AirNav Team,

I'll wait until then, thanks for the update.

Much appreciated

Regards


Dub33

  • New Member
  • *
  • Posts: 43
Re: Dublin \ Ireland RB Reception
« Reply #8 on: February 05, 2008, 02:44:04 PM »
Hi, Air Nav Development,

Just a quick question, any update on the  special antenna kit ?

Regards