Icom IC7300 A to Z #11 IF Filter Settings & Notch Filter

[@mrbyamile6973]

Thanks, I'm learning so much from these series. I didn't comprehend completely what the notch filter did. Now I'm amazed my radio has that kind of capability. Static doesn't bother my ears but the sound of someone tuning right over a qso just grinds my gears.

[@jameskeough4620]

Your video lengths are perfect. Reminds me of the time studying for the tics...half hour each morning. Now it's half hour with Tom.

[@straightpride451]

Hi little buddy, it's Brian, watching your video.

[@Steve-GM0HUU]

👍Thanks for video. Would agree that Auto Notch is all you normally need for SSB. Manual Notch - I sometimes find useful on digital modes, like FT8. If you have a really strong FT8 signal wiping out weaker one's - Manual Notch to the rescue.

[@DK5ONV]

Hello Tom. I easily watched 30 or 40 You Tubers who made videos about the IC-7300 and IC-7100 from the Unboxing over customized Setting til Firmware Updating. No one explained and showed it as well as you did. I mean that from all of my Heart. Tnx for your great Job and all the Effort it took to spread that out to the HAM Radio World. Happy last Day of 2022 and a happy and porsperous NEW YEAR to you & yours. 💯🙏🍀🛡🍻 73 de Uncle Guenter 🙋‍♂

[@HamRadioA2Z]

Thank you. I truly appreciate the kind words. A very happy and blessed New Year to you and your family as well.

[@LimonEllie]

Thank you so much for your video's! You are so easy to watch and listen to, unlike a lot of other youtubers. I quite often recommend your channel to anyone that has a fairly recent icom radio. I started watching a few years ago, ( i gess when you first started this), when I couldn't find any videos on the IC-7100. I came across your video for the IC-7300 and realized the two radios were extremely similar . Now I have a 7300 also, and exploring things that I haven't explored in the 7100, and of course the very few things that are different between the two. So much on the notch filter you missed, but I thank you for getting me in the mood to figure this out. (my NOTCH filter only had MN till I found how to change that in the setting, then NOTCH filter was locked on and I couldn't change my memory channles, ( I still don't know how I did that), now I got that turned off and I can not bring up the manual NOTCH filter. I finally figured that out.) lol Thank you SO MUCH!!!! Love your video's!!!! 73 Peace AA2EC 😊😊 P.S. Don't know why you changed your channel name but you will always be HAM CURED SMOKE, the best!

[@HamRadioA2Z]

Thanks for the kind words. I'm sure there are many things I still haven't covered. Sometimes comments like yours remind or inspire me to add another video.

[@jps99]

Thanks for the great video, short and sweet!

[@PatFortino]

Excellent explanation of the ic7300 filters. Thanks

[@HamRadioA2Z]

Thanks. I'm glad it was helpful.

[@OctavMandru]

What can the filters in IC-7300 do for you? Anything they have to Thank you for these videos. 73 de YO4OCM

[@alexsmith7614]

I've noticed using the auto notch (AN), when you have an operator that sends a carrier (heterodyne) in an off-and-on fashion repeatedly, you can hear that the AN takes a small amount of time to react and reset itself for each occurrence. That's a bit annoying. So when I get into that situation I take the trouble to find the offending signal with manual notch to eliminate the recovery affect. Thank you for doing these "episodes" as they are very helpful. I have subscribed :-)

[@HamRadioA2Z]

Thanks Alex. That’s a good tip and a good reason for using the manual notch filter.

[@tomkeady1750]

Excellent!! #10 an #1, I'm sharing this with fellow 7300 owners

[@HamRadioA2Z]

Thanks Tom!

[@Aleziss]

4:00 filter in CW mode is dependant of the CW resonance frequency. Yours is set at 700Hz because the center of each of the 3 filters is 700Hz. You can change the resonant CW frequency by hitting the Multi button, there you will find the CW resonant frequency that can be ajdusted and 3 filters will be centered on the resonant frequency.

[@johnmarron1944]

Thanks for such an informative video 👍😉

[@de_w8tam]

I like looking at the audio screen to see how the notch filter works. Shows it in operation in the audio passband. 73 de w8tam

[@keithschreiter3885]

When you use the manual notch, put on your audio scope, it will make it easier to adjust. N9QDS

[@HamRadioA2Z]

Thanks Keith. That’s a great suggestion. I’ll try to remember to show that when I get to the episode on the RF and AF spectrum displays

[@scottdematteo]

Excellent video. Thank you.

[@andrewredford8233]

So so useful. Thank you.

[@MrMHancock]

I use manual notch only. The reason why is simple. Tune to your offensive tone, note the S-meter. Hit auto notch and note that the S-meter has not changed. Use manual notch to tune out the tone and your S-meter drops and the signal you want to hear is much easier to copy.

[@HamRadioA2Z]

Thanks for the tip Mike. I’ll have to try that out.

[@MrMHancock]

@@HamRadioA2Z Also, if auto is used when in CW the auto notch may take the signal you want to listen to. Just experienced that.

[@HamRadioA2Z]

Mike, you’re absolutely right. I wasn’t really thinking about CW when I said I wasn’t sure why I would use manual notch. The auto-notch could definitely block out the signal you want to here. Although, I think for close station interference on CW, I would just set the filter bandwidth down to 100hz or so as I demonstrated in the other portion of the episode rather than using the notch filter.

[@chazwozza67]

Great video

[@bigbruno200]

Thank you! NS3R

[@alancarter5141]

so is the notch just like an old fashioned kc shift ?

[@edpetrovski6640]

Manual notch? For CW. Auto notch will take out all cw sigs...manual notch takes out the one you want to attenuate.

[@HamRadioA2Z]

Hi Ed. You make a good point. The manual notch makes much more sense for CW, but in the beginning of that same episode I also show how to set the filter bandwidth in CW small enough that you can hear only 1 CW signal even with 2 signals right on top of each other. Either method works. That's part of the beauty of this radio. There are many ways to accomplish each thing and none of them are wrong. Whichever method makes the most sense to you is fine.

[@flyingjeff1984]

Thank you. 73 KM4VPO

[@GPSJayDog22]

Thank you 4 sharing 😃 N6WIP

[@omnisteverino]

What do you mean by someone, "tuning up?"

[@HamRadioA2Z]

Hi Steve. The term is a bit of a hold over from tube radio days. Although many people still have tube radios today and kilowatt amps with tubes are still pretty popular. With a tube radio or amplifier, there are several knobs you have to adjust to properly match the output of the radio to your antenna system every time you change bands or frequencies. "Tuning Up" refers to somebody putting out a solid carrier while they adjust their radio, antenna tuner or amplifier. When the radio is in SSB, CW or RTTY mode, it sounds like a single tone on the receiver. Often, you can watch the signal strength of the signal moving up and down as the other station adjusts things. We're supposed identify before we start and when we've finished tuning. It's also good etiquette to check to be sure that the frequency is clear before starting. Unfortunately, one or both of those things often don't happen. 73, Tom WA2IVD

[@omnisteverino]

@@HamRadioA2Z Thanks, Tom. I'm enjoying the IC7300 series. Cheers