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Reviews Categories | Filters, RF: bandpass, duplexer, lowpass, highpass, RFI/EMI, e | Yaesu MTU - Mu tuning units Help


Reviews Summary for Yaesu MTU - Mu tuning units
Yaesu MTU - Mu tuning units Reviews: 12 Average rating: 4.2/5 MSRP: $$400.00
Description: The Ultimate Low-Band DXer RF Preselection Filter: YAESU’s Exclusive µ-Tuning!
On the lower Amateur bands, the signal voltages impinging on a receiver can create noise and Intermodulation effects that can cover up weak signals you’re trying to pull through. So YAESU’s engineers developed the µ (Mu) Tuning system for the FTDX9000, and it’s now available as an option for the FT-2000. Three modules are available (MTU-160, MTU-80/40, MTU-30/20), and these modules may be connected externally with no internal modification required! When µ-Tuning is engaged, the standard VRF (Variable RF Preselector) system is bypassed, but the fixed Bandpass Filters are still in the received signal path. The µ-Tuning filters utilize a stack of large 1.1” (28 mm) Ni-Zn Ferrite cores, driven through a silver-plated coil assembly by a precision stepper motor. The resulting high Q (typically over 300) provides a very steep resonance peak near your operating frequency. The peak may be adjusted away from your frequency, for even greater protection from a specific station, and a graphical depiction of the µ-Tune filter alignment appears on the front panel of the transceiver.
Product is in production.
More info: http://www.yaesu.com/indexVS.cfm?cmd=DisplayProducts&ProdCatID=102&encProdID=66EA91711DFB68C03DED4AD35153E12C&DivisionID=65&isArchived=0
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K5VY Rating: 5/5 Dec 15, 2008 05:42 Send this review to a friend
GREAT PRODUCT- WORTH THE MONEY  Time owned: more than 12 months
I own three MTU's for my FT-2000, and three in my FTdx-9000MP. It took about six months for me to really learn how to use them to the best advantage. I found the reduction of near strong signals close to the weaker signal I wanted was very desireable. Makes my operations on the lower bands much better and easier. I work SSB mostly, but the help in CW is remarkable.
 
W6PSA Rating: 5/5 Dec 14, 2008 16:10 Send this review to a friend
MTU 80/40  Time owned: 0 to 3 months
The MTU units are expensive, but so is the hobby. When I use the DMU2000's band scope, it is evident that these filters work to remove most of the band noise. These filters remove QRM (interference), but not on stations 2 kHz away. In my opinion, the MTU is an adjustable 6 kHz roofing filter on steroids. This filter is 5+ times more effective than the VRF feature in the Yaesu-FT2000/950. The VRF will remove one s-unit of noise when centered. The mtu-unit will remove 5+ s-units of noise when centered. Finally, this filter is great on 40 meters. The MTU removes most of the interference received from the Foreign Broadcast stations. This is a great accessory, but don’t buy it, unless you can afford it. The MTU is effective, but over priced for most Ham’s (weekend warriors).
 
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