Products > Test Equipment

Anritsu MT8801A/B/C & MT8802A

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KJDS:

--- Quote from: Howardlong on November 15, 2014, 06:40:08 am ---
--- Quote from: KJDS on November 15, 2014, 06:22:46 am ---I keep an MT8801B on my bench as a general purpose tool. Lovely bit of kit though the display is a week design and it's useful to know that they suffer from poor caps.

--- End quote ---

Do you by any chance know what the differences are between the '01A/B/C and '02A?

--- End quote ---

I've not noted any significant differences, however I've not played much with the 02A or the 01A

Howardlong:
I guess what I'm alluding to is do they have the following functionality...

A) Analogue receiver tester, to 3GHz

B) Analogue transmitter tester, to 3GHz

C) Full span spectrum analyser, to 3GHz

The cellular stuff for me is just an irritation to bypass when you first switch on, or is there a way to go straight to, say, the analogue receiver tester? I'm not really interested in a floppy-based setup solution, by the time you've done that you could have already manually pushed the buttons yourself! The settings themselves for the spec an and analogue tests are maintained through power down.

The other irritation is the boot time, about five minutes or so. When I first switched on my MT8802A, I thought it had crashed, as much of the boot time is with a blank screen after the first CPU and memory self tests.

But it is a good all round unit. If I could find some documentation for the analogue and spectrum analyser sections that would be a bonus.

By the way, after re-capping the CPU board I had to do a full reset by holding the Preset button while turning it on, a bit frustrating as I had to spend a while trying to remember how I'd configured the rx tester SINAD settings correctly.

KJDS:

--- Quote from: Howardlong on November 17, 2014, 12:49:42 pm ---I guess what I'm alluding to is do they have the following functionality...

A) Analogue receiver tester, to 3GHz

B) Analogue transmitter tester, to 3GHz

C) Full span spectrum analyser, to 3GHz


--- End quote ---

From memory, The 8801A/B/C, then A) and B) is only if option 01, analog tester is installed.
For the spectrum analyzer, this is option 07. The all have the same basic functionality with those options installed.

With both those options, then you have a box with spectrum analyzer, signal generator, frequency counter, modulation meter all up to 3GHz, as well as some simple audio input and output functions.

Without those, then it's just a way of testing whatever mobile phone that the system has been installed. I've not noticed a long boot time, however I've just done a fresh power up on a MT8801B and an MT8801C and the B booted quickly and the C took a few minutes, most of which was with a blank screen. It seems like Anritsu has taken some lessons from Microsoft.

Quick advert time, but both are available for sale, the B has options 01 and 07 installed, the C is just for GSM measurements. PM me for details.

pa3weg:
Hi Howard,

I finally registered at this forum as well. I am in the process of recapping.
Did you also do the small 1uF electrolytics in the power supply on the boards that are soldered into the main PSU board?

So far the power supply and Reference are done, the rest to follow later.

Mine boots fairly quickly, under 30s. Maybe yours has a bigger base image for more complicated standards!?
I get DECT and GSM as options installed. I was thinking of backing up the compact flash card in case that wears out. If you want, I can send you the card image if I get round to dumping it into a file. it may speed up booting!

Wouter

Howardlong:
I can't honestly remember, but I don't think I knowingly left any out.

Meanwhile mine has a couple of other faults, I managed to blow up the N port but have no idea how, using the TNC aux connectors for now until I get around to taking it apart again.

Then at the weekend after it'd been on for half an hour or so the screen started getting snow on it with apparently bad writes to the screen buffer. It was particularly warm and humid at the time, it hasn't repeated this since.

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