The FTdx101D and MP, and the FTdx10, are superheterodyne as well, ahead of the SDR stage. It represents the best of both worlds. But the FTdx5000 is still my favorite. 73, de N4HNH
Doug, nice and amazing video! Subscribed to your channel just few days ago cause I was searching some setup videos for my ftdx-10, and what a surprise when see the quality of your videos. So much information and tips. Thanks a lot for this great contribution to the ham community. Hope to work with you on air! Greetings from PY2VTR, 73!
Hi Victor! Welcome to N4HNH Radio! We should have some QSO opportunities via 40 or 20 meters from time to time. I check in with some guys on 7.150 +/- sometimes, and I am occasionally on 7.204 +/-, in the late afternoon and evening, talking to a friend or two. If you hear me, please jump in. I’m glad you find the videos helpful. I don’t do a fancy production. I just try to put my viewers in the shack, as if they are operating the radio with me. Please don’t miss the other video playlists, that cover antennas, tuners, amplifiers, etc. Even some of the techniques I show with other transceivers can very often be applied to the FTdx10, and vice versa. Again, welcome! 73, de N4HNH
Thank you so much!!! I'll keep my ears up trying to find you on the frequencies in 40m. In 20m, I have to wait until my B class reaches 1 year, so I can try the test for A class which includes 20 meters, which will be in July, until there, I'll try in 40m! The best thing in your channel so far is that you talk very good and don't have bells and whistles on edition. Straight to the point and very very helpful! Coincidently, I will watch all videos, cause I have ft-891 and ftdx-10... the 5000, is my dream to one day have one, so until this day, I'll keep learning! Thanks and soon the dollar (US$) rates, facing Brazilian Real (BRL$), improves I wish to become a patreon, cause really want to see more videos. Thanks again and wish all the best for future on air and videos. 73!
I’ve become addicted to LO/hi cut. I leave LO at 200 and rarely ever change that. Use high cut for bandwidth and QRM. I don’t remember seeing a way to do this on dx10 videos and that puts me off from trying a dx10. Maybe I missed a video you did on it. Also like a dedicated knob for hi cut.
The older audio DSP units, and older Yaesu radios, like my FT-920, provide a separate high and low cut knob, but that is accomplished via AF DSP. With IF DSP, you have only a bandwidth knob, which narrows the passband from both the high and low end, simultaneously. Then you use shift to decide whether you want to position this passband to emphasize lows or highs. But that is separate from AF tapering, which is the subject of this video. The FTdx10 offers AF tapering. It is located in the Radio Settings menu under Mode SSB, and is called hi-cut and low-cut. You have a choice to slope at 6dB/octave or 18dB/octave. I like to begin the hi-cut at 2400 to 2600 Hertz and slope at 18dB/octave. I have even set it to 2100 Hertz with a slope of 6dB/octave. I set low-cut to 150 Hertz and slope at 18dB/octave, or I set to 200 Hertz and slope at 6dB/octave. So many hams these days add too much low-end to their TX audio, so sloping at 150 to 200 Hertz helps clear up their “muddy” audio. I have set low-cut to 300, in order to have a QSO with someone who had so much low-end that they reminded me of a bullfrog. I did that rather than risk offending him by telling him how awful his TX audio was. I could have also narrowed the passband and used shift to emphasize the higher audio frequencies. 73, de N4HNH
Yes, I know them well. That is IF DSP. It accomplishes the same thing as Yaesu’s DSP bandwidth control, but with two adjustments instead of one. You are narrowing the passband by separately adjusting the high-cut and low-cut in the IF stage. With Yaesu transceivers, one bandwidth control knob cuts highs and lows simultaneously. Then you move this newly defined passband around with the Shift knob. This allows you to shift away from QRM. I’m sure you’ve seen that in the plethora of videos I’ve posted that show that. The audio shelving I speak of in this video is a completely separate thing. It is a high cut and low cut that is done in the audio stage. Yaesu provides both options with the FTdx10. That’s why I use both simultaneously. The audio taper assists the IF DSP bandwidth control. It is especially helpful for CW. I set hi-cut to 700 Hertz at 18dB/octave and low-cut to 500 Hertz at 18dB/octave. My sidetone is set at 600 Hertz, so I am only allowing the audio stage to amplify +/- 100 Hertz from my sidetone frequency. I am essentially limiting the AF stage to a 200 Hertz spectrum, besides what the DSP width might be set to. Of course it isn’t like a brick wall. At 1400 Hertz the audio stage has cut by 18dB and at 250 Hertz the audio stage has cut by 18dB. 18dB is the maximum setting. This provides the steepest filter skirts. 73, de N4HNH
@@n4hnhradio I don’t want to beat this in the ground but will the dx10 indicate say hi cut 2400 or I think I’ll have to get used to the old way of a negative shift value with narrow bandwidth. I’m not sure I want to go back to the old way.
The FTdx10 displays the bandwidth you select. If it reads 2400, then your IF filter cuts at 2400 Hertz, assuming that Shift is centered up. If you shift counterclockwise, you are dropping the the frequency where the IF DSP begins to cut from 2400 to maybe 2250, 2200, 2100, etc. but you are also favoring a lower frequency response. If you don’t want more lows, rotate the width knob more counterclockwise, narrowing the passband even more. You could narrow to 1200 Hertz if needed, to knock out QRM on SSB. You can narrow to 50 Hertz for CW. These are some of the reasons the FTdx10 is number two in the world, second only to the FTdx101D or MP. The filtering is super tight and almost razor-edged. The display on the FTdx10 shows the passband width and it shows where the center of the passband is, as you move the passband up and down with the Shift control. Again, this is all IF, not audio shelving. 73, de N4HNH
Yaesu's last superhet. A kickass Transceiver all the Way thru'n'thru. Worht it the money for sure! 💯👍
The FTdx101D and MP, and the FTdx10, are superheterodyne as well, ahead of the SDR stage. It represents the best of both worlds. But the FTdx5000 is still my favorite.
73, de N4HNH
Thanks Doug 73 KQ4CD
You’re very welcome, Paul! 73, Doug
Doug, nice and amazing video! Subscribed to your channel just few days ago cause I was searching some setup videos for my ftdx-10, and what a surprise when see the quality of your videos. So much information and tips. Thanks a lot for this great contribution to the ham community. Hope to work with you on air! Greetings from PY2VTR, 73!
Hi Victor! Welcome to N4HNH Radio! We should have some QSO opportunities via 40 or 20 meters from time to time. I check in with some guys on 7.150 +/- sometimes, and I am occasionally on 7.204 +/-, in the late afternoon and evening, talking to a friend or two. If you hear me, please jump in.
I’m glad you find the videos helpful. I don’t do a fancy production. I just try to put my viewers in the shack, as if they are operating the radio with me.
Please don’t miss the other video playlists, that cover antennas, tuners, amplifiers, etc. Even some of the techniques I show with other transceivers can very often be applied to the FTdx10, and vice versa.
Again, welcome!
73, de N4HNH
Thank you so much!!! I'll keep my ears up trying to find you on the frequencies in 40m. In 20m, I have to wait until my B class reaches 1 year, so I can try the test for A class which includes 20 meters, which will be in July, until there, I'll try in 40m!
The best thing in your channel so far is that you talk very good and don't have bells and whistles on edition. Straight to the point and very very helpful!
Coincidently, I will watch all videos, cause I have ft-891 and ftdx-10... the 5000, is my dream to one day have one, so until this day, I'll keep learning!
Thanks and soon the dollar (US$) rates, facing Brazilian Real (BRL$), improves I wish to become a patreon, cause really want to see more videos.
Thanks again and wish all the best for future on air and videos.
73!
You have two great radios. 73, de N4HNH
I’ve done is as crazy as 200-1100hz 18dB high slp and really squeezed the audio and pulled out s0 signals
Nicely done. I use every type of filtering available to pull out the ghost stations. 73, de N4HNH
I’ve become addicted to LO/hi cut. I leave LO at 200 and rarely ever change that. Use high cut for bandwidth and QRM. I don’t remember seeing a way to do this on dx10 videos and that puts me off from trying a dx10. Maybe I missed a video you did on it. Also like a dedicated knob for hi cut.
The older audio DSP units, and older Yaesu radios, like my FT-920, provide a separate high and low cut knob, but that is accomplished via AF DSP. With IF DSP, you have only a bandwidth knob, which narrows the passband from both the high and low end, simultaneously. Then you use shift to decide whether you want to position this passband to emphasize lows or highs. But that is separate from AF tapering, which is the subject of this video.
The FTdx10 offers AF tapering. It is located in the Radio Settings menu under Mode SSB, and is called hi-cut and low-cut. You have a choice to slope at 6dB/octave or 18dB/octave. I like to begin the hi-cut at 2400 to 2600 Hertz and slope at 18dB/octave. I have even set it to 2100 Hertz with a slope of 6dB/octave. I set low-cut to 150 Hertz and slope at 18dB/octave, or I set to 200 Hertz and slope at 6dB/octave.
So many hams these days add too much low-end to their TX audio, so sloping at 150 to 200 Hertz helps clear up their “muddy” audio. I have set low-cut to 300, in order to have a QSO with someone who had so much low-end that they reminded me of a bullfrog. I did that rather than risk offending him by telling him how awful his TX audio was. I could have also narrowed the passband and used shift to emphasize the higher audio frequencies.
73, de N4HNH
@@n4hnhradio k3 and ts-590 both have LO/hi cut that are NOT in audio
Yes, I know them well. That is IF DSP. It accomplishes the same thing as Yaesu’s DSP bandwidth control, but with two adjustments instead of one. You are narrowing the passband by separately adjusting the high-cut and low-cut in the IF stage. With Yaesu transceivers, one bandwidth control knob cuts highs and lows simultaneously. Then you move this newly defined passband around with the Shift knob. This allows you to shift away from QRM. I’m sure you’ve seen that in the plethora of videos I’ve posted that show that.
The audio shelving I speak of in this video is a completely separate thing. It is a high cut and low cut that is done in the audio stage. Yaesu provides both options with the FTdx10. That’s why I use both simultaneously. The audio taper assists the IF DSP bandwidth control. It is especially helpful for CW. I set hi-cut to 700 Hertz at 18dB/octave and low-cut to 500 Hertz at 18dB/octave. My sidetone is set at 600 Hertz, so I am only allowing the audio stage to amplify +/- 100 Hertz from my sidetone frequency. I am essentially limiting the AF stage to a 200 Hertz spectrum, besides what the DSP width might be set to. Of course it isn’t like a brick wall. At 1400 Hertz the audio stage has cut by 18dB and at 250 Hertz the audio stage has cut by 18dB. 18dB is the maximum setting. This provides the steepest filter skirts.
73, de N4HNH
@@n4hnhradio I don’t want to beat this in the ground but will the dx10 indicate say hi cut 2400 or I think I’ll have to get used to the old way of a negative shift value with narrow bandwidth. I’m not sure I want to go back to the old way.
The FTdx10 displays the bandwidth you select. If it reads 2400, then your IF filter cuts at 2400 Hertz, assuming that Shift is centered up. If you shift counterclockwise, you are dropping the the frequency where the IF DSP begins to cut from 2400 to maybe 2250, 2200, 2100, etc. but you are also favoring a lower frequency response. If you don’t want more lows, rotate the width knob more counterclockwise, narrowing the passband even more. You could narrow to 1200 Hertz if needed, to knock out QRM on SSB. You can narrow to 50 Hertz for CW. These are some of the reasons the FTdx10 is number two in the world, second only to the FTdx101D or MP. The filtering is super tight and almost razor-edged.
The display on the FTdx10 shows the passband width and it shows where the center of the passband is, as you move the passband up and down with the Shift control. Again, this is all IF, not audio shelving.
73, de N4HNH
👍
Thank you, Robert! 73, Doug