FTDX-101D Takes Top Honours

Wow! Yaesu engineers really did Sako Hasegawa JA1MP proud!

Yaesu took a hybrid approach to earn top spot with Sherwood Engineering using Narrow band SDR & Direct Sampling SD technolgies

In addition to the Narrow band SDR receiver, Crystal Roofing Filters produce phenomenal Multi-signal characteristics

The Down Conversion type receiver construction with the first IF frequency of 9 MHz and the Narrow band SDR configuration makes it possible to use the narrow bandwidth crystal roofing filters that have the sharp shape factor.  This achieves the amazing multi-signal receiving performance.

The Narrow band SDR receiver removes strong out of band signals by using a superheterodyne method, with narrow band roofing filters which significantly attenuates unwanted out of band frequency components, and the wanted signals within the passband are converted to digital by a high resolution 18-bit A/D converter and sent to an FPGA (Field Programmable Gate Array) for signal processing. The improved  RF preselector VC-Tune further improves the high-performance RF.

By using this hybrid SDR design, the overall performance of the entire FTDX101 receiver system is improved.

I spent 2 hours with this radio at HRO and was very impressed with its performance in crowded band conditions. The display is awesome as well

Now for a QRP version that be carried in a back pack?

BTW the antenna tuner range is still 3:1 so please keep the LDG tuner handy

 

 

 

 

 

Device
Under Test
Noise
Floor
(dBm)
AGC
Thrshld
(uV)

dB
100kHz
Blocking
(dB)

Sensitivity
(uV)
LO Noise
(dBc/Hz)
Spacing
kHz
Front End
Selectivity
Filter
Ultimate
(dB)
Dynamic Range
Wide Spaced
(dB)

kHz
Dynamic Range
Narrow Spaced
(dB)

kHz
LO Noise Corrected 05/10/19
Yaesu
FTdx-101D
-127
-136b
-1416
4.5
1.6b
0.58b1
3 >147 0.60
0.20b
0.12b1
154
155
10
50
A Trk Presel >115 110 20 110 2

One comment

  1. ve7hamradio · October 15

    Reblogged this on Coastal Ham Radio and commented:
    From VE3IPS

    Like

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