"Ian White GM3SEK" wrote in message
...
Andy wrote:

I found a review from Radcom on the net and it sounds good.
http://www.mixw.co.uk/product/reviewAA200.htm I sent an e-mail to the
designer of the Analyser and he says it does not require re-calibration.

That feature is a two-edged sword. On the one hand, it means the analyser
is immediately ready for routine measurements. That of course is a good
feature for most of the users, most of the time.

On the other hand, if it doesn't have the *capability* to be recalibrated
when different kinds of test fixtures are attached, it means that some
useful kinds of measurements will not be possible... or worse, will appear
to be possible but may give wrong answers. Measurements of the resonant
frequencies of coaxial chokes are an example where analysers that cannot
be recalibrated will give large errors - see the last few paragraphs of:
http://audiosystemsgroup.com/RFI-Ham.pdf

There's a place for both the simple handheld analysers and the ones that
have more features but live on a bench. It's the buyer's choice... but
whichever one you buy (or build) first, you may eventually find uses for
both.

Thsnk you for the Radcom link Andy- I had missed that.
I agree with Ian on the recal- however I think for portable use this is
ideal. I have an HP8711B for bench measurements.

Dale W4OP

If I was to look out for an Antenna Analyser that would do the other
measurements that the AA-200 can't do. What would be the price rang that I
could expect to pay and what would you recommend?

73 Andy


"Dale Parfitt" wrote in message
news:sim_j.2412$u7.535@trnddc07...

"Ian White GM3SEK" wrote in message
...
Andy wrote:

I found a review from Radcom on the net and it sounds good.
http://www.mixw.co.uk/product/reviewAA200.htm I sent an e-mail to the
designer of the Analyser and he says it does not require re-calibration.

That feature is a two-edged sword. On the one hand, it means the analyser
is immediately ready for routine measurements. That of course is a good
feature for most of the users, most of the time.

On the other hand, if it doesn't have the *capability* to be recalibrated
when different kinds of test fixtures are attached, it means that some
useful kinds of measurements will not be possible... or worse, will
appear to be possible but may give wrong answers. Measurements of the
resonant frequencies of coaxial chokes are an example where analysers
that cannot be recalibrated will give large errors - see the last few
paragraphs of:
http://audiosystemsgroup.com/RFI-Ham.pdf

There's a place for both the simple handheld analysers and the ones that
have more features but live on a bench. It's the buyer's choice... but
whichever one you buy (or build) first, you may eventually find uses for
both.

Thsnk you for the Radcom link Andy- I had missed that.
I agree with Ian on the recal- however I think for portable use this is
ideal. I have an HP8711B for bench measurements.

Dale W4OP

On Mon, 26 May 2008 11:03:41 +0100, "Andy"
wrote:

If I was to look out for an Antenna Analyser that would do the other
measurements that the AA-200 can't do. What would be the price rang that I
could expect to pay and what would you recommend?

73 Andy


Try this:

http://w5big.com/

73,
Danny, K6MHE

My Rigexpert AA-200 has just arrived from
http://www.radioworld.co.uk/~radio/c...fec46917ed4fe4

So far I have only used the MFJ 259B. But this is a much better analyser. It
is in a class of its own. I input the frequencies for all 5 bands and
connected it to my Cobwebb antenna and got an instant SWR reading. It
continuously monitors the SWR on all five bands at once. This is only one
excellent feature of many. I have not had much experience with antenna
analysers, but this one I am very impressed with, so far.

73 Andy


"Dan Richardson" wrote in message
...
On Mon, 26 May 2008 11:03:41 +0100, "Andy"
wrote:

If I was to look out for an Antenna Analyser that would do the other
measurements that the AA-200 can't do. What would be the price rang that I
could expect to pay and what would you recommend?

73 Andy


Try this:

http://w5big.com/

73,
Danny, K6MHE

"Andy" wrote in message
...
My Rigexpert AA-200 has just arrived from
http://www.radioworld.co.uk/~radio/c...fec46917ed4fe4

So far I have only used the MFJ 259B. But this is a much better analyser.
It is in a class of its own. I input the frequencies for all 5 bands and
connected it to my Cobwebb antenna and got an instant SWR reading. It
continuously monitors the SWR on all five bands at once. This is only one
excellent feature of many. I have not had much experience with antenna
analysers, but this one I am very impressed with, so far.

73 Andy


Hi Andy,
Have you been able to use the software? I don't see any documentation for it
or an explaination of the "PC" switch on the analyzer.

Dale W4OP

Dale,
I haven't tried yet. I will give it ago this morning and I will let you know
ASAP, how I get on.

73 Andy


"Dale Parfitt" wrote in message
news:P%M%j.14200$ED6.8352@trnddc02...

"Andy" wrote in message
...
My Rigexpert AA-200 has just arrived from
http://www.radioworld.co.uk/~radio/c...fec46917ed4fe4

So far I have only used the MFJ 259B. But this is a much better analyser.
It is in a class of its own. I input the frequencies for all 5 bands and
connected it to my Cobwebb antenna and got an instant SWR reading. It
continuously monitors the SWR on all five bands at once. This is only one
excellent feature of many. I have not had much experience with antenna
analysers, but this one I am very impressed with, so far.

73 Andy


Hi Andy,
Have you been able to use the software? I don't see any documentation for
it or an explaination of the "PC" switch on the analyzer.

Dale W4OP

Dale,
I have got my software working with the AA-200.
What did they supply in the box with your Analyser?
Once I know then I will be able to help.

73 Andy


"Dale Parfitt" wrote in message
news:P%M%j.14200$ED6.8352@trnddc02...

"Andy" wrote in message
...
My Rigexpert AA-200 has just arrived from
http://www.radioworld.co.uk/~radio/c...fec46917ed4fe4

So far I have only used the MFJ 259B. But this is a much better analyser.
It is in a class of its own. I input the frequencies for all 5 bands and
connected it to my Cobwebb antenna and got an instant SWR reading. It
continuously monitors the SWR on all five bands at once. This is only one
excellent feature of many. I have not had much experience with antenna
analysers, but this one I am very impressed with, so far.

73 Andy


Hi Andy,
Have you been able to use the software? I don't see any documentation for
it or an explaination of the "PC" switch on the analyzer.

Dale W4OP

"Andy" wrote in message
...
Dale,
I have got my software working with the AA-200.
What did they supply in the box with your Analyser?
Once I know then I will be able to help.

73 Andy

Hi Andy,
My mail to bounces- is there a better address?

I have the CD and the USB cable. The software is installed on the computer-
but don't know about which com port etc.

Dale W4OP