Ham Radio - How the Icom 7300 twin pass band tuning filters work, and filters for new hams.

[@snugs4911]

As a new ham, a newer General, and an even newer IC-7300 owner, my head was spinning trying to filter out interference. Thanks for a VERY helpful explanation of the twin PBT!

[@elvinpena8788]

Hats off! thanks for the theory of whats happening and final visual of it happening on the actual equipment... now it makes sense... 73

[@gingercat555]

A real lesson here, thanks, I use an old IC-735 which has PBT which works just fine but now having seen the twin PBT in action on the IC-7300 what a difference, as you say all software controlled, oh how things have moved on ............................ Thanks for the very informative video, good work.

[@floridasaltlife]

Just bought a new 7300 and got my license today, Got a lot to learn, love your videos...

[@djd8058]

Great explanation, Kevin. I just got a 7300 and successfully used that feature the other night. All I knew was that it worked but had no clue as to how or why. Now I do. Thanks so much for all of your videos. You do a great job and provide a valuable service to us. 73

[@tomegan7927]

I am a new ham and the 7300 is my first HF rig. I love the 7300 and this video really helped. Thanks

[@bahathir_]

Hi. VEry nice explanation about Twin PBT. This very useful during contest, if we want to 'focus' to certain station. Usually, I start by narrrowing the bandwidth using the outer ring dial. Most of the time it works effectively. If the QRM is still strong, we can 'run away' from it, by using the IF shift, the center dial. Sometime, I use it just to 'focus' the station, and reducing the band noise. Thank you. Bahathir 9W2GNU, 73.

[@XBKLYN]

Late to this party but excellent vid..thank you. Icom has created the Venn diagram of filters 😁

[@perthperareicum]

Thanks for going this through in both theory and practice with live signals. Much obliged!

[@johnkershaw9575]

Wonderful and as an ICOM-7300 owner I found this very useful. Thanks. Hope all is well in Texas or Quartzsite if you made it there. JJK

[@loughkb]

All's good on the Gulf coast. Quartzite will be January for Quartzfest.

[@samglaim4274]

Great explanation of filtering in a modern radio. The 7300 looks a really tasty radio. 73

[@KX4UL]

Very well explained! The Twin Pass Band feature is one of the many things I love about my new IC-7300

[@klrscout]

That’s a neat comparison of the two manufacturers’ approaches. Also enjoying the Linux videos.

[@davidj.wilcox6053]

Thanks Kevin. Had an idea of how these worked but never really heard the difference as well as your demo.

[@N2LRB]

Thank you, thank you, thank you! Until this video, I did not understand the twin bypass filter concept. Excellent Video!

[@gilmurray4732]

Thanks! Excellent video!

[@DonDegidio]

Hi Kevin, Very good video showing how PBT works on the Icom radios. 73 WB3BJU

[@stevewheatstone1856]

Awesome video. Just got the 7300. This helps greatly. 73s

[@jptucsonaz8503]

Thanks Kevin, another great & informative vid. Hope all is well for you. 73

[@johnr8829]

Best explanation of twin PBT I've seen. Thanks.

[@johnpeterson7264]

Thanks much this is a great explanation of the twin pbt that ICOM offers.

[@johnmarron1944]

Thanks again for explaining this and many other aspects of the hobby to us all .👍👍

[@w4mkh]

Great explanation. Thanks,

[@MoTown44240]

In 32 years I've only used the filter between my ears to sort out different CW sig's on my personal gear but contesting with club equipment that has filters it has been helpful at times. During pileups when I'm running a frequency the filters are nice but not so much when working search and pounce. I have not owned equipment that has this sophistication but it good to know that it is available. 73 KB8AMZ

[@n8nkqrp595]

I agree with you on the analog brain filter. Unless there's a contest going on or another close-by signal that's really strong - I crank up my IF bandwidth to 4kHz. Sounds gorgeous on my FTdx3K. 50 Hz filtering is amazing when needed.. if you can tolerate your radio making 'beeps' rather than 'tones'. Like a mid-70s $3 Japanese pocket radio. 73

[@amyluke4598]

I"m like N2LRB below, thank you thank you. I've had my IC7300 since August before last, (the day of the solar eclipse) and I've not really understood what he twin passband filtering was all about. I'd twiddle the knobs but didn't really know what I was doing. Now I do.

[@MysterPynk]

Brilliant. So well done, even a HAM rookie could follow.

[@galileo_rs]

Yaesu had the shift/width controls on their "hybrids" in the late '70s, not sure if they were the first one to do it.

[@loughkb]

I haven't dug much, but I wonder if later Collins gear might have done something interesting with filters also. They had popular mechanical filters, I seem to remember.

[@galileo_rs]

Their mechanical filters were quite popular among the Yaesu FT1000 owners but I'm not that familiar with the Collins gear, as those are quite rare in the YT land.

[@jimrecord6505]

Thanks. That cleared up the PBT. I’ll have to try it tomorrow.

[@Nonvido]

Not bad! I understood the basics and had the understanding of how the Twin band-pass filter works Just by playing with it. But This helped clear it up even more.

[@ralphwilmot6351]

Great information and useful to know how it works. Wish I could afford an IC7300 as OM. Keep up the good work.

[@kulanchandrasekaran4462]

Nice explanation, even nicer that you could pull off a live demonstration. Thanks. Now, if you can please call ICOM and tell them to have the image linger on the screen for a few seconds instead of it disappearing as soon as you take off your hand from the knob …

[@paulgarcia1566]

Thanks Kevin, this video is very helpful. 73!

[@robertkard3195]

Excellent explanations! Thank you, Bob AI6ZG

[@Steven_VE9SY]

Great Video. Can't wait till I get my 7300!

[@astrorad2000]

Good Video Kevin. I like your child lock on your overhead cabinet. I have been using a velcro cable strap on ours but that child lock is a great idea. I will look for one at a yard sale this summer.

[@loughkb]

They're pretty cheap at the retail stores. Quick to snap on before moving.

[@astrorad2000]

@@loughkb you are right Kevin...but I can be a bargain hunter too...lol

[@Hermit-Of-Poverty-Point]

Excellent description on the twin PBT. I bought an IC-7300 last week, I'm learning more about the radio every day. For an entry level radio It certainly performs. Next I'll be looking to set up a panadapter with my SDRPlay.

[@joewilson2258]

As a new amature operator with the IC-7300 this is very helpful . 73 Joe KN4kBH

[@modex20]

seems kind of strange that the IC-745 offered both IF shift and PBT. it's all relative movement. whether your shift IF left or the PBT right, aren't you accomplishing the same thing? wouldn't make more sense to offer just one or the other. I suppose that's what the toggle button on the right is for.

[@kelvin0mql]

Did you do a previous vid showing IF-shift (and/or other filtering) as a way to combat a nearby-freq strong signal from adversely impacting AGC? Or was that someone else? Oh, my unreliable memory. Anyway, very helpful vid, even though I don't have an Icom. This nonetheless helped me understand better how to use the tools/techniques I DO have at my disposal.

[@malchaschwatrz5706]

Nicely Explained.Well Done!

[@stolz5573]

I'm assuming that both of these concentric PBT knobs do the exact same thing, and that you could start with either the PBT1 (inner knob) or the PBT2 (outer knob) first, and then rotate the other one typically in the opposite direction if needed. Are these assumptions correct? Unfortunately the explanation of Twin PBT in the 7300 manual is not very helpful but after watching your excellent explanation of this I have a much better understanding. Thank you Kevin for the valuable content you have provided. 73, K1OD

[@loughkb]

You are correct in your assessment. You could start with either knob and rotate the other in the opposite direction. You can also rotate them together to shift your newly shaped filter up or down entirely.

[@thuff3207]

Great demo of how a filer works.

[@Veetheoneandonly]

Great explanation, Kevin. I'm about ready to buy a 7300 and this helps. Another reviewer didn't like this IF filtering feature on the 7300, but really didn't explain why. I want to connect the 7300 to a computer and use computer control and logging. Understand that is easy on the 7300. I like the new 7610, but wonder if it is worth 3X the cost of a 7300?? Just getting back into active ham radio and my TS-440-ATS just doesn't have all the whistles and bells the new rigs have, although it still works great. I've subscribed and have enjoyed many of your videos. Thanks, Vee Butterfield W7IBB (Utah).

[@batfalcononyoutube]

Thank you for this explanation of how filters work. Although I do have a question: Is there a way not to have any filter on?

[@loughkb]

No, but I can't see why you'd want an audio passband almost as wide as human hearing. All the adjacent noise and transmissions would make for very difficult listening.

[@AldoSchmedack]

BIG TY!

[@markstephenson5358]

Thankyou very good I now understand.

[@MrMHancock]

Great video. Thanks so much.

[@zodiac_qld8018]

Well done VK4VSM

[@jeffreyeide7512]

Yo Kevin! Thanks again for a great video! Tells me a bit about my IF shift on my IC-735. I suppose dual pbt tunuing is just an enhancement on the same. The education is helpful. We want an update on the banking situation too! Motor on guy! De seeker/Jeff WA7LFP

[@loughkb]

Banks all sorted, I'm back to normal. Thanks.

[@jeffreyeide7512]

Yo Kevin!: Great to hear on the banking situation, did you opt to close the account & go with another institution, I'd advise a credit union, they have a VAST network of CU's that are inter-connected where you walk up, give them your name home institution (and password, which I HEARTILY advise,) and you can do virtually ALL of your banking as if you were at the home instition! Hope that's what you did.. De seeker/Jeff WA7LFP

[@rayjones4963]

Yes, I'm a knew ham and this was very helpful....thank you KE8KKY

[@bud03038]

Great video! KC1KCI 73'S

[@greggabry3128]

The whole 13:30 minutes was worth finding out pushing the button in set it back to default. Urg, I am a little slow, I guess I could of read this somewhere in the manual hi hi

[@zanado11]

Thanks, very instructive. 73 Roger W8RLP

[@Greywolf3]

Thank you Kevin! w0xs

[@davidray4128]

Am I the only one who prefers one knob for shift and one for width?

[@loughkb]

No. I think it would be more intuitive that way also.

[@davidray4128]

@@loughkb My 2 fav knobs on my K3. :)

[@loughkb]

​@@davidray4128 Icom's approach is more complicated, but maybe also a bit more flexible. You can easily shift one side or the other of the filter while also adjusting it's center and width this way. I have found that a quick way to 'tune' out an adjacent station with a twist of just one knob to tuck in just that side of the filter a bit.

[@kalibri.tusoer]

Полезная информация пользуюсь спосибо

[@scoopyall2996]

Thanks Kevin, I was gonna ask what your option was on ic-7300. But then I noticed this old guy wasn’t using his Kenwood in the motor home, it appeared another radio working in the camper. When did that sneak in? Now I like another video on how you hooked up the raspberry pi, which raspberry you would buy, and did you have to program it. Now if you ever come up to Manitoba, Canada, there will always be a spot for you, but don’t come in the winter it sucks. VE4RHM

[@GPSJayDog22]

Thank you 4 sharing 😃N6WIP

[@charlesschindler1971]

Hell-o

[@donaldsmith3048]

Thank You for the information! I am new to my 7300,and this should help me. 73 de W4DES

[@RuSomeKindaIdiot]

Quick Question. I've read & seen many articles & videos regarding the effectiveness of digital filtering between SDR manufactures. After my attempt to filter/ignore any ownership bias from the reviews it's apparent that Flex & Anon provide far better PB filtering especially during crowded band conditions relative to Icom. Understanding no manufacturer has access to higher quality 1s & 0s, what accounts for this demonstrable difference in performance?

[@loughkb]

Software design.