If a yagi isn't colour coded........
 

How can I tell which band or type it is?

Is there a website with the dimentions listed?

I have to get channels 38 to 63, and currently 38 is a bit iffy sometimes. I
would just like to be able to check which group aeriel I currently have
before getting a new group E one.

If a yagi isn't colour coded........
 

On Mon, 26 Nov 2007 16:39:17 GMT, "Brian"
wrote:

How can I tell which band or type it is?

Is there a website with the dimentions listed?

I have to get channels 38 to 63, and currently 38 is a bit iffy sometimes. I
would just like to be able to check which group aeriel I currently have
before getting a new group E one.

With those frequencies, you need a group E, which are pretty hard to
find. I think CPC sell group E ones. I have never seen a group E
aerial up close, but it probaly looks similar to a wideband with the
elements getting closer as you go up the boom. Group A are easy, as
they have the longest elements, Group B are a bit narrower and
slightly closer together & Group C/D even narrower. They are also
colour coded, but that seems to be disappearing.

Marky P.

If a yagi isn't colour coded........
 

"Marky P" wrote in message
...
On Mon, 26 Nov 2007 16:39:17 GMT, "Brian"
wrote:

How can I tell which band or type it is?

Is there a website with the dimentions listed?

I have to get channels 38 to 63, and currently 38 is a bit iffy sometimes.
I
would just like to be able to check which group aeriel I currently have
before getting a new group E one.

With those frequencies, you need a group E, which are pretty hard to
find. I think CPC sell group E ones. I have never seen a group E
aerial up close, but it probaly looks similar to a wideband with the
elements getting closer as you go up the boom.

Or rather as you go *down* the boom, if you consider the reflector the
"bottom".
I wonder if there are people, Bill perhaps, who can group an aerial from
street level? It would be a gift, like a musician with perfect pitch.

--
Graham

%Profound_observation%

If a yagi isn't colour coded........
 

"Graham." wrote in message
...


"Marky P" wrote in message
...
On Mon, 26 Nov 2007 16:39:17 GMT, "Brian"
wrote:

How can I tell which band or type it is?

Is there a website with the dimentions listed?

I have to get channels 38 to 63, and currently 38 is a bit iffy
sometimes. I
would just like to be able to check which group aeriel I currently have
before getting a new group E one.

With those frequencies, you need a group E, which are pretty hard to
find. I think CPC sell group E ones. I have never seen a group E
aerial up close, but it probaly looks similar to a wideband with the
elements getting closer as you go up the boom.

Or rather as you go *down* the boom, if you consider the reflector the
"bottom".
I wonder if there are people, Bill perhaps, who can group an aerial from
street level? It would be a gift, like a musician with perfect pitch.

Group A's are always easy to spot - but comparing a group W with an E at
street level can be difficult. A quad X is also often difficult to identify,
though most are now W.

AFAIK Antiference have always used coloured dots on the top of the
connection box with the group written on - then about 4 years ago I bought a
TC18A and it also had a red end bung, but not sure if they still do this.

Also bought a Diamond Colour Quad X (once(!) which seemed to be a rip off of
an XG8/10) it only had a sticker inside the connection box.

TBH if the aerial is a few years old and mounted outside any ID may well
have gone, you could try photographing it and linking us into the photos and
we can make it a pre Christmas quiz :-)

If a yagi isn't colour coded........
 

Graham. wrote:

Or rather as you go *down* the boom, if you consider the reflector the
"bottom".
I wonder if there are people, Bill perhaps, who can group an aerial from
street level? It would be a gift, like a musician with perfect pitch.

I can normally tell if it's a Group C/D, and there's a make of Group E used
round here that is instantly recognisable, but beyond that no.

--
Mark
Please replace invalid and invalid with gmx and net to reply.

If a yagi isn't colour coded........
 

"Graham." wrote in message
...
I wonder if there are people, Bill perhaps, who can group an aerial from
street level?

Yes. I can nearly always tell the group, except that I can't tell an E from
a B. Usually, the dipole and reflector and first few directors of Es and Bs
are identical. It's just that the directors get a bit smaller and a bit
closer together. When Anti made Es the 18ele was the same boom length as a
B, but the last element was about 40mm from the end instead of 15mm. The
last element was mebbe 10mm shorter.

Bill

If a yagi isn't colour coded........
 

"Bill Wright" wrote in message
...

"Graham." wrote in message
...
I wonder if there are people, Bill perhaps, who can group an aerial from
street level?

Yes. I can nearly always tell the group, except that I can't tell an E
from a B. Usually, the dipole and reflector and first few directors of Es
and Bs are identical. It's just that the directors get a bit smaller and a
bit closer together. When Anti made Es the 18ele was the same boom length
as a B, but the last element was about 40mm from the end instead of 15mm.
The last element was mebbe 10mm shorter.

Bill


IMO the old Aerialite 10B's looked like A's from ground level, whereas as
Bill says the Antiference B's and E's are very similar. Did the Aerialite
have bigger elements, or is it my imagination?

Mark, are you referring to the Wolsey E's which seem very prevalent around
Winchester?

If a yagi isn't colour coded........
 

On Mon, 26 Nov 2007 19:19:00 -0000, "Graham." wrote:



"Marky P" wrote in message
.. .
On Mon, 26 Nov 2007 16:39:17 GMT, "Brian"
wrote:

How can I tell which band or type it is?

Is there a website with the dimentions listed?

I have to get channels 38 to 63, and currently 38 is a bit iffy sometimes.
I
would just like to be able to check which group aeriel I currently have
before getting a new group E one.

With those frequencies, you need a group E, which are pretty hard to
find. I think CPC sell group E ones. I have never seen a group E
aerial up close, but it probaly looks similar to a wideband with the
elements getting closer as you go up the boom.

Or rather as you go *down* the boom, if you consider the reflector the
"bottom".
I wonder if there are people, Bill perhaps, who can group an aerial from
street level? It would be a gift, like a musician with perfect pitch.

Group A, C/D & wideband are easy to distinguish at ground level.
Group B, being between the other two is more difficult.

Marky P.

If a yagi isn't colour coded........
 

Doctor D wrote:
ements, or is it my imagination?

Mark, are you referring to the Wolsey E's which seem very prevalent around
Winchester?

Yes perhaps, there and down in Chandler's Ford on the Valley Park estate ?

--
Mark
Please replace invalid and invalid with gmx and net to reply.

If a yagi isn't colour coded........
 

"Brian" wrote in message
...
How can I tell which band or type it is?

Is there a website with the dimentions listed?

I have to get channels 38 to 63, and currently 38 is a bit iffy sometimes.
I
would just like to be able to check which group aeriel I currently have
before getting a new group E one.


Forgot to add, I can get to this quite easily, so measurements are possible.
Agree that looking up from 20 or 30 feet below makes it very difficult.