Yupiteru MVT7100 or…… ?

[GuyD24]

Hello. I have had a Yupiteru MVT7100 for many years. It has been unused in the last few. I took it out recently, put new batteries in etc. However all does not seem totally well now. Initially, for example, the squelch noise was as expected on turning the knob but now it is either on all the time, wherever the knob is, or not at all. I can alter the frequency and step but pressing ENT does nothing and it tends to revert to the original setting. I've tried reseting the receiver.

It seems I have a choice. Send it off for a service. Or reluctantly buy another. That raises further dilemmas! Which? Uniden UBC125XLT??? Any recommendations? (I have an iMac computer by the way - some receivers need to be connected sometimes?).

Thanks v much - any thoughts.

 

[Fast1eddie]

Where would you send it for service?? I had the impression Yupiteru went out of business. Neat radios.

 

[GuyD24]

There are one or two places here (uk) who say they can do this sort of thing. But worth it??

 

[N9JCQ]

Compare what the 7100 can do versus comparable radios such as the Icom receivers. the 7100 is still a highly regarded receiver.

 

[fires999]

Hi Guyd24
Use my Yupi 7100 ALL the time as I find it really pulls in those signals.
I also use Yupi 225 dedicated Airbands and even have 2 mobile versions Yupi 8000.
I know a fantastic engineer here in UK you could ask price/advice etc...let me know and can pass on his details.
Good luck,
Kevin ( US Airforce Mildenhall, Suffolk)

 

[Ubbe]

Hello. I have had a Yupiteru MVT7100 for many years. It has been unused in the last few.

It keeps its memory by a backup capacitor that would have lost its voltage when not being used for a couple of years and it seems it will be damaged by that low voltage and needs to be replaced, or the memory function will not work properly. Will take some care and soldering skill.

Javiation in UK mentions:
They use a 5.5v, .22f backup capacitor for CPU/memory retention
so that may be the problem.

Panasonic Gold Capacitor SD Series
Panasonic # EECSOHD224H

We normally have them available but other sources include:

UK: Farnell http://www.farnell.co.uk
Stock #: 303-6790

CPC (A Farnell Co.) http://www.cpc.co.uk
Stock #: CA0248966

RS Components http://www.rswww.com
Stock #: 377-388

/Ubbe

 

[scanner_nut]

I use a 7100 with a Maldol AL-500H antenna for monitoring aviation. I have not found anything else that can complete.

 

[N9JCQ]

I use a 7100 with a Maldol AL-500H antenna for monitoring aviation. I have not found anything else that can complete.

I do as well. I also use the RH-77 and it does a decent job. But that Maldol is the best that I have used.

 

[GuyD24]

Many thanks everyone. Very useful stuff.
Guy

 

[AirBandBill]

Hi folks. I have a Yupiteru MVT 7100 which is about 25 years old and had been brilliant for air and marine band listening.
But it has now lost all my favourite scanned frequencies and some of the keyboard buttons are not working.
It works OK in WFM mode and volume and tone of stations such as Classic FM are still as good as new.
Search works OK in WFM but the FUNC, MR, STEP, SCAN and SEARCH hardly work at all, and are very hit or miss.
Strong airband transmissions from Stansted, Southend and small airfields nearby cannot be heard at all over loud interference whereas before they had been very clear.
The charging lead hasn't worked for a long time and I haven't used the scanner for a few years while using a Marine band radio for sailing purposes.
Would it be possible to repair this superb scanner? If so, could anyone give me an idea of the cost?
Cheers
Bill

 

[N9JCQ]

Hi folks. I have a Yupiteru MVT 7100 which is about 25 years old and had been brilliant for air and marine band listening.
But it has now lost all my favourite scanned frequencies and some of the keyboard buttons are not working.
It works OK in WFM mode and volume and tone of stations such as Classic FM are still as good as new.
Search works OK in WFM but the FUNC, MR, STEP, SCAN and SEARCH hardly work at all, and are very hit or miss.
Strong airband transmissions from Stansted, Southend and small airfields nearby cannot be heard at all over loud interference whereas before they had been very clear.
The charging lead hasn't worked for a long time and I haven't used the scanner for a few years while using a Marine band radio for sailing purposes.
Would it be possible to repair this superb scanner? If so, could anyone give me an idea of the cost?
Cheers
Bill

Hi Bill, the capacitor that is used as a memory for the 7100 dies and the memory becomes volatile. whee in the globe are you?

 

[AirBandBill]

Hi N9JCQ I am in the UK, near London.

 

[racingfan360]

This might help you Bill:

 

[N9JCQ]

Also, you might want to reach out to this gentleman. he has a fascinating repair channel on youtube. He clearly can fix them. He might be able to assist you or guide you to someone else that can assist you.