Discussion in 'Ham Radio Discussions' started by YU4SRB, Nov 15, 2021.
Can the FTDX3000 or FTDX 1200 4khz transmit bandwidth be used in the AM mode?
It all boils down to what you prefer. The Kenwood would be my choice for several reasons, but there is certainly nothing wrong with the FT-3000. Juat select one and enjoy it.
You wouldn't want to drive an amplifier not having double checked the signal emitted by the Yaesu FT3k.
But that's no more a concern nowadays.
People -hams- they just Tx, don't try digging weak stations, don't adjust anything, why should they, impossible tweaking deep inside layers of menus, ain't?
So... to cut a useless thread, have fun.
I don't use my radio on am mode so I can't recall what the transmit bandwidth is. I do remember the receive narrow filter is 6 khz wide for am.
I guess that's why some folks post in big, bold, capital letters.
Good thing that no one has ever driven an amp with an FT3k before.
If you are going to operate FT-8 (like 90-odd% of the ham population), then that 2.7kHz roofing filter is going to be limiting. The FT-8 segment is steadily growing and the 3.6 kHz maximum bandwidth of my 7300 is beginning to look a bit narrow!
90% huh ?
That's quite a claim.
I submit that 0% of the hams do FT-8, their computers make contacts for them.
You may be right...
Here you can verify that your numbers are different from them at Sherwoods lab because Rob shows the combination with the sidneband noise. The FT-3000 has a noisy LO. The Kenwood seems better than the Yaesu. http://www.sherweng.com/table.html
Also note that the TS-590 has some more roofing filters in the high IF.
73, Peter - HB9PJT
[QUOTE="YU4SRB, post: 6019300, member: 904592"
2) Yaesu have these roofing filetrs: 15 kHz, 6 kHz, 3kHz, 600 Hz, and option to add 300 Hz, TS 590 has only 2.7 kHz and 500 Hz
5) Dynamic range based on what I've found
108.5 dB (10 KHz spaced signals, pre1 ON or OFF).
106 dB (2 KHz spaced signals, pre1 ON or OFF).
87 dB (2 KHz spaced signals, 7 MHz, BW 500 Hz, Pre OFF, RX1)
107 dB (20 KHz spaced signals, 7 MHz, BW 500 Hz, Pre OFF, RX1)