Yaesu FT-991 -Yaesu USA Update the Firmware MAIN Ver.01.10 and DSP Ver.01.01 of 25/02/2015 – See link below – [Note]: Please read the Yaesu Firmware Upgrade Manual before proceding to the Yaesu “classic” multiple software installations! – Caution: it does wipe all the settings including the memory channels- Yesu says: FT-991 “Improved and optimized”
FT-991: Triple conversion with 1st IF frequency of 69.450 MHz for all bands – 1st IF stage 3 kHz roofing filter, not only in HF but also in VHF and UHF bands – IPO, AMP1 and AMP2 for the HF/50MHz bands – The RF AMP for 430 MHz uses HEMT NE3509 devices – ! See pic & video below -
FT-991 full color TFT LCD display with Spectrum Scope and Waterfall Capability. – The TFT Display provides useful information about function status and setting at a glance, intuitive layout makes touch operation a pleasure.
FT-991 – il display a colori “touch” sembra facile da usare ed è intuitivo anche per i numerosi settaggi, che ora si presentano sullo schermo, di volta in volta, con tante icone e a gruppi come si vede dalle foto. – Forse, data la dimensione di soli 3″ del TFT LCD, per molti di noi, ci vorranno gli occhiali per “toccare” quella esatta !
Those waiting on Yaesu to replace the old quad band FT-847 will enjoy…! – Those waiting on Yaesu to release a replacement for the small FT-817 will just have to keep waiting..! -
FT-991 – a little video … of the problem (?) of frequency step
Video de Eric VE2MEL: the STEP is also related to the FAST button… in this case x10 (… It’s not a bug !)
FT-991 Final Stage with Ample Power Reserves: Push-pull arrangement of RD100HHF MOS-FET devices for HF/50 MHz range, output power 100 Watts. For the VHF & UHF bands uses the MOS-FET RD70HUF2 device which incorporates two MOS-FET in a single package, ouput of 50Watts
[Note] – Detailed specifications: please see the official sources – All specifications are subject to change without notice – All trademarks belong to their respective holders.- This page is just a non-official overview, where no one should draw any conclusions – All images and versions above is for illustration only. (tnx)