On Feb 26, 11:49 am, "Greg" wrote:
I'm a newbie upgrading to a 3GHz scanning system so I'm no looking round for recommedations and feedback on antennas that perform
up to 3GHz. I would rather spend extra for a professional level antenna than go for a cheaper option. The AOR DA5000 looks good
but I'd appreciate any tips before I start shelling out money. I'm currently scanning with a D130 discone which works well but it
only goes up to 1300MHz. Thanks for any advice.

You will be lucky if you pick up ANYTHING worth listening to above 400Mhz
R

There's alot around 400-500 as steve terry said in his reply,
and around 800-1000 there's alot of analogue repeaters,
shortrange stereo wireless/headphone, and cordless phones

Also there are point-to-point links above 1000MHz, used between base
stations and hilltop radio sites. You can spot these on masts by the
horizontal plastic tubes pointing outwards, these contain a long Yagi.
The small elements for these wavelengths are more affected by wind &
rain, hence the protective tube.

AFAIK these carry plain FM voice if it's a single-channel link, multi-
channels using subcarriers also exist.

In article
,
"alexander.keys1" wrote:

On Feb 26, 11:49 am, "Greg" wrote:
I'm a newbie upgrading to a 3GHz scanning system so I'm no looking round
for recommedations and feedback on antennas that perform
up to 3GHz. I would rather spend extra for a professional level antenna
than go for a cheaper option. The AOR DA5000 looks good
but I'd appreciate any tips before I start shelling out money. I'm
currently scanning with a D130 discone which works well but it
only goes up to 1300MHz. Thanks for any advice.

You will be lucky if you pick up ANYTHING worth listening to above 400Mhz
R

There's alot around 400-500 as steve terry said in his reply,
and around 800-1000 there's alot of analogue repeaters,
shortrange stereo wireless/headphone, and cordless phones

Also there are point-to-point links above 1000MHz, used between base
stations and hilltop radio sites. You can spot these on masts by the
horizontal plastic tubes pointing outwards, these contain a long Yagi.
The small elements for these wavelengths are more affected by wind &
rain, hence the protective tube.

AFAIK these carry plain FM voice if it's a single-channel link, multi-
channels using subcarriers also exist.

Actually, Most of these antennas you describe are Circularly Polarized,
Helix antennas, inside the RayDomes.

You wrote in
:




Actually, Most of these antennas you describe are Circularly
Polarized, Helix antennas, inside the RayDomes.

I thought it was "radomes", from radar.

--
Percy Picacity

What would you listen to there anyway? Just some digital beeps and
gibberish? There is nothing such as clear voice there! You are wasting
money!


On Feb 24, 5:54 am, "tg" wrote:
I'm a newbie upgrading to a 3GHz scanning system so I'm no looking
round for recommedations and feedback on antennas that perform up to
3GHz. I would rather spend extra for a professional level antenna than
go for a cheaper option. The AOR DA5000 looks good but I'd appreciate
any tips before I start shelling out money. I'm currently scanning
with a D130 discone which works well but it only goes up to 1300MHz.
Thanks for any advice.

On Feb 25, 8:14*am, Walter - kg4bvd - SAR Comms Dispatcher
wrote:
What would you listen to there anyway? Just some digital beeps and
gibberish? There is nothing such as clear voice there! You are wasting
money!

http://www.uhf-satcom.com/cband/

3605.425 1544.575 Analogue phone channel (1535.425 return)

"Walter - kg4bvd - SAR Comms Dispatcher" wrote
in message
...
What would you listen to there anyway? Just some digital beeps and
gibberish? There is nothing such as clear voice there! You are
wasting
money!

who says clear voice is my only interest? There's a spectrum of
different things up there and I want to investigate things and expand
my knowledge. I'm certainly not going to achieve that listening to a
neg-bot like you.

"tg" wrote in message
...

"Walter - kg4bvd - SAR Comms Dispatcher" wrote
in message
...
What would you listen to there anyway? Just some digital beeps and
gibberish? There is nothing such as clear voice there! You are
wasting
money!

who says clear voice is my only interest? There's a spectrum of
different things up there and I want to investigate things and expand my
knowledge. I'm certainly not going to achieve that listening to a neg-bot
like you.

You have been told there is not much worth listening to up in that range,
you have been advised to save your money, yet all you seem to do is reply in
an abusive manner every time anybody posts anything that you don't want to
hear, WHY should anybody advise an arse-hole like you
Rog



I choose Polesoft Lockspam to fight spam, and you?
http://www.polesoft.com/refer.html

"Rog" wrote in message
...

"tg" wrote in message
...

"Walter - kg4bvd - SAR Comms Dispatcher"
wrote
in message
...
What would you listen to there anyway? Just some digital beeps and
gibberish? There is nothing such as clear voice there! You are
wasting
money!

who says clear voice is my only interest? There's a spectrum of
different things up there and I want to investigate things and
expand my knowledge. I'm certainly not going to achieve that
listening to a neg-bot like you.

You have been told there is not much worth listening to up in that
range, you have been advised to save your money, yet all you seem to
do is reply in an abusive manner every time anybody posts anything
that you don't want to hear, WHY should anybody advise an arse-hole
like you
Rog

'You have been told there is not much worth listening to ' - that's
what I call arrogance.
I never asked anyone for advice about what was available in the upper
spectrum. I never asked for anyone's opinion on how I choose to spend
my money. I simply asked for advice and feedback on a suitable antenna
designed to work in that range, that's all. Whether or not I want to
take a look in the upper spectrum for myself is entirely up to me,
It's actually no-one elses business. You are not at liberty to make it
your business. Now unless you've got experience with antennas designed
for the upper spectrum I wish you'd just back off.

"tg" skrev i en meddelelse
...
I'm a newbie upgrading to a 3GHz scanning system so I'm no looking round
for recommedations and feedback on antennas that perform up to 3GHz. I
would rather spend extra for a professional level antenna than go for a
cheaper option. The AOR DA5000 looks good but I'd appreciate any tips
before I start shelling out money. I'm currently scanning with a D130
discone which works well but it only goes up to 1300MHz. Thanks for any
advice.

Hi TG.

Well it depends very much on what you want to hear.
Is it ground or space trafic?

A broadband antenna or discone, is not a very good antenna, compaired to a
dedicated antenna for a smaller frequency area. If your planing to catch
some satellites, a broadband/discone is not the way to go, the gain
efficiency is simply too low.

Regards
Brian

"Brian Kals" wrote in message
k...

"tg" skrev i en meddelelse
...
I'm a newbie upgrading to a 3GHz scanning system so I'm no looking
round for recommedations and feedback on antennas that perform up
to 3GHz. I would rather spend extra for a professional level
antenna than go for a cheaper option. The AOR DA5000 looks good but
I'd appreciate any tips before I start shelling out money. I'm
currently scanning with a D130 discone which works well but it only
goes up to 1300MHz. Thanks for any advice.

Hi TG.

Well it depends very much on what you want to hear.
Is it ground or space trafic?

both if that's at all possible Brian...
I have noticed that upper spectrum antennas tend to be more narrow in
the frequencies they target, unlike lower spectrum discones which try
to cover a wide range. So I'm none the wiser at this stage.