Ground to Air Radio Antenna

Aircraft, traffic control, air services

Moderators: Infernal, Nafenn, numloxx

Post Reply
numloxx
Moderator
Moderator
Posts: 468
Joined: Fri Feb 25, 2005 3:39 pm
Amateur callsign: VK6PCB
Location: Maylands, Perth, WA
Contact:

Ground to Air Radio Antenna

Post by numloxx »

Hi all,

The antenna are work is going to be replaced, and I was wondering if anybody can tell me a bit about this style and if there is a better design for 129.25mhz transmitting and receiving.

Cheers,

Image
robbage
Moderator
Moderator
Posts: 2993
Joined: Sat Feb 09, 2008 10:06 am
Amateur callsign: VK6UFO_VK6RN
Scanners and Receivers:  
Scanners/receivers
Diamond Welz WS1000 wideband handheld
Radioshack Pro 28 handheld
Uniden UBC72XLT handheld
Uniden UBC73XLT handheld
Uniden UBC330CRS desktop

Two-way
Yaesu VX-3R 2m/70cm Ham TRX and wideband RX handheld
Yaesu FT-1802M 2m Ham TRX mobile x 2
Yaesu FT-7800R 2m/70cm Ham TRX and wide band RX mobile
Icom IC-208H 2m/70cm Ham TRX and wide band RX mobile
Icom IC-706MKIIG all-band all-mode Ham TRX mobile
Icom IC-V85 2m VHF Ham TRX handheld
Wouxun KG-UVD1P VHF/UHF wideband Ham TRX handheld
Wouxun KG-679P VHF wideband Ham TRX handheld
Wouxun KG-713 UHF wideband Ham TRX handheld
Location: Just on the border of your waking mind

Re: Ground to Air Radio Antenna

Post by robbage »

Hard to tell but it looks like the common or garden variety of ¼ wave with ground plane. There probably isn't a better design for airband. If you use something like a collinear then it flattens the radiation pattern towards the ground which will only improve signals to other ground stations and you lose signal at higher angles (ie aircraft overhead will be worse)
A taller mast is probably the best improvement.
Rob
OF78WD
 Amateur moderator
.
Arguing with a fool proves there are two
Post Reply