best antenna

[abcd567]

....... a T feeder can purchase the correct equipment, a Radar Cape, which is basically a FR24, and then they can as a T feeder participate as an MLAT station.......

For those who are keen to be displayed-feeder, and cannot get equipment from tracking site, your proposal is a good solution.

However since I am not keen to be displayed as feeder, nor keen to feed data, I will not spend €650 eqv $1000 on feed-specific receiver. I would rather spent this money in purchasing test equipment like oscilloscope, signal generator, antena analyser etc etc, or spent it to help some one.

[abcd567]

This is the kind of antenna I'd love to get... it's a FAA approved ADS-B antenna with 9 dB gain... this is the same type of antenna used at airports and it's over 6 feet long.

http://www.dbsant.com/ADSB5100A.php

The specs show that it is a very good & professional antenna. It is worh investing for those who want a professional system.

As far as I am concerned, I am not willing to burn couple of $100 bills for it, as I can find better uses of this money. I prefer to design & built antennas myself.

Sent from my N762 using Tapatalk 2

[peterhr]

This is the kind of antenna I'd love to get... it's a FAA approved ADS-B antenna with 9 dB gain... this is the same type of antenna used at airports and it's over 6 feet long.

http://www.dbsant.com/ADSB5100A.php

I'd like one too, preferably not at my expense.


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[abcd567]

I'd like one too, preferably not at my expense.


Sent from my GT-P5110 using Tapatalk

You have to wait till Chinese start manufacturing these. Then you will be able to get it at current European/North American price divided by ten

Sent from my N762 using Tapatalk 2

[1090 MHz]

The specs show that it is a very good & professional antenna. It is worh investing for those who want a professional system.

As far as I am concerned, I am not willing to burn couple of $100 bills for it, as I can find better uses of this money. I prefer to design & built antennas myself.

That antenna probably costs 2 grand.... it's got FAA certification, and anything that has strict government and military specs is always pricey. But at the same time you want to be assured it's going to work in all situations when it's being used by ATC.

[1090 MHz]

The specs show that it is a very good & professional antenna. It is worh investing for those who want a professional system.

As far as I am concerned, I am not willing to burn couple of $100 bills for it, as I can find better uses of this money. I prefer to design & built antennas myself.

That antenna probably costs 2 grand.... it's got FAA certification, and anything that has strict government and military specs is always pricey. But at the same time you want to be assured it's going to work in all situations when it's being used by ATC.

[abcd567]

That antenna probably costs 2 grand.... it's got FAA certification, and anything that has strict government and military specs is always pricey. But at the same time you want to be assured it's going to work in all situations when it's being used by ATC.

For Military, country's freedom & lives of it's ciizen are at stake. For Air Trafic Control, lives of passengers & crew are on stake. They therefore go for the most stringent specs to get best perforamce and Maximum Reliability even in the worst condiions. To meet these requiremens, the cost shoots up exponentially. But looking at the stakes, the obvious choice is to pay that price.

For hobbyists, nothing is at stake, and it is illogical to pay such a high price, except when the hobbyist has won first prize of a lottery or has hit a jackpot in a casino :-)

Sent from my N762 using Tapatalk 2

[Amper]

For hobbyists, nothing is at stake, and it is illogical to pay such a high price, except when the hobbyist has won first prize of a lottery or has hit a jackpot in a casino :-)

Then he would buy himself this 2_31.jpg and place it in the nearest ATC tower
I would....

[peterhr]

Then he would buy himself this [ATTACH=CONFIG]3365[/ATTACH] and place it in the nearest ATC tower
I would....

I don't think the wax-whip antennas on the table would be very effective.

[1090 MHz]

Then he would buy himself this [ATTACH=CONFIG]3365[/ATTACH] and place it in the nearest ATC tower
I would....

That looks like Dave's place from 2001 a space odyssey ..

dave.jpg

[abcd567]

See this very useful webpage for tips for constructing OUTDOOR TYPE Franklin

http://www.lesaunier.com/htm/franklin1_eng.htm

Pictures below are from above site
1/3
franklin_7.JPG

2/3
franklin_8.jpg

3/3
franklin_3R.png

[abcd567]

HOW TO MAKE A POWER INSERTER
USING A TV CABLE SPLITTER, AN INDUCTOR & A CAPACITOR

Step 1 of 4 - Obtain an ordinary 2-Way TV/Cable Splitter
Do NOT waste your money on good quality costly Splitter,
as you are going to use only the housing of the Splitter.
Purchase the cheapest one you can find.
The good quality costly ones have component mounted on a printed board inside,
which you will throw away.

power_inserter_steps_part_1.png

Step 2 of 4 - Remove the back cover of Splitter
power_inserter_steps_part_2.png

Step 3 of 4 - Remove all parts inside the Splitter
power_inserter_steps_part_3.png

Step 4 of 4 - Solder the Ceramic Capacitor & Axial Inductor to the 3 available pins
power_inserter_steps_part_4.png


.

[bpgoll]

HOW TO MAKE A POWER INSERTER
USING A TV CABLE SPLITTER, AN INDUCTOR & A CAPACITOR

Step 1 of 4 - Obtain an ordinary 2-Way TV/Cable Splitter
Do NOT waste your money on good quality costly Splitter,
as you are going to use only the housing of the Splitter.
Purchase the cheapest one you can find.
The good quality costly ones have component mounted on a printed board inside,
which you will throw away.

[ATTACH=CONFIG]3433[/ATTACH]

Step 2 of 4 - Remove the back cover of Splitter
[ATTACH=CONFIG]3434[/ATTACH]

Step 3 of 4 - Remove all parts inside the Splitter
[ATTACH=CONFIG]3435[/ATTACH]

Step 4 of 4 - Solder the Ceramic Capacitor & Axial Inductor to the 3 available pins
[ATTACH=CONFIG]3436[/ATTACH]


.

Thank you sir
Your tips here really save money .. Great

[abcd567]

Thank you sir
Your tips here really save money .. Great

If you do not have an electronics parts shop nearby, you can order Splitter, Capacitor & Inductor on Line very cheap, but will have to wait 1 to 2 months due to surface/sea shipping from China:

1 Pc 2-WAY CABLE TV SPLITTER 5-900MH - FREE Standard Int'l Shipping - US $1.49
http://www.ebay.ca/itm/2-WAY-CABLE-T...-/280766417601

30 Pcs 220pF 50V Ceramic Disc Capacitor - FREE Standard Int'l Shipping - US $0.99
http://www.ebay.ca/itm/30-Pcs-220pF-...g/321028278208

10 Pcs 4.7 uH Inductor 1/2W - FREE Standard Int'l Shipping - US $1.49
http://www.ebay.ca/itm/10-x-4-7uH-4-...-/330452964551

[abcd567]

DRAWING: FRANKLIN HOW-TO

For Details ro be readable, See Full size Image (Zoom or download).

franklin-1mm to 3mm dia wire-4mm fold-5mm stub-how-to-R2.jpg