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My brand new Winegard Sensar IV had loose components rattling around internal to the antenna head. Opened the hard way but found that the amplifier board and VHF coil and screws were not screwed in? Bad QA for sure. Your video gave me the information needed to secure the PC board and coil placement. Good stuff! Also good to hear another ham operator. Nice details. 73 and thank you, de WQ6N (once upon a time VK8QN).

Any idea why it was called Ludvik Square? Also any chance you would make one of these for Elderslie? I know there’s not much in Elderslie but I thoroughly enjoyed this and I’m intrigued by the history of Elderslie, I feel like it’s impossible to find stuff to read about it.

I don't need to repair my Winegard antenna, but I might be upgrading it. I think that the RV manufacturer economized and did not buy the UHF electronics module. Now I have an understanding of the product. Good work fixing that shunt to the inductor! Thanks

My Duff family is from John Fyffe 1760 Perth -1833 Dundee. I have not been able to research farther back unfortunately.

Hi maté thoroughly enjoyed this upload . My late father and his Family from Johnstone . My Grandfather had a Barber shop on Old Walkninshaw street Malcolm kerr ( Wee Malky ) used to visit my grandparents on Scott Avenue been a few years since I visited Johnstone . Thanks for the Sentimental journey . Malcolm Kerr

You did not mention the original Johnstone High School next to the High Parish Kirk in the old photograph. Spent three years there 1953 to 56. Must admit, I was glad to leave and go to the original Watt Memorial College in Greenock to train for the Merchant Navy. Hated Latin and it returned the complement!

I just found this video. My great grandfather was George Houston. The family named at least one male George Houston. I have a picture of him.

Direct descendant of Alexander Russell, who sold the land that Duff House is built on to his cousin William Duff. His sister Eleanor Duff married into the "Green" family. The Red Greens were actually Lamonts. James Lamont was a survivor of the massacre of Dunoon that changed his surname to Green. His son William married Eleanor Duff and their son Robert Duff Green was one of the largest landholders in Colonial Virginia.

Gracias por su tiempo en realizar el video, excelente radio, muy practico y facil de usar, lo felicito, un abrazo desde caracas, 73

My antenna is from 1995. Would that essentially be a Winegard Sensar "1"? Would mine have a circuit card inside of it?

I'm descended from William Duff of Braco, first Earl Fife through his daughter Isabelle who married Alexander MacIntosh of Blervie and came to America sometime after selling Blervie Castle. Thanks for explaining how we ended up in the Branff area from where the MacDuff castle was located. Wow at 22:10, you showed the plaque with William Duff's arms. Fascinating-thanks for posting! ❤

Hello, I am a Johnstone from Australia. I am at the beginning of my heritage journey. But have known about the town of Johnstone for a while. Thankyou for making a place name on a map come to life. Very Cool.

Any suggestions on a source for these radios, never found anywhere...

First class job there Rodrick ! Looking at the HF90 and where you are coming from, I am not surprised you left major defence contractors at all. It had to take innovative creative engineering, like you clearly have, to conceive of and create , a tiny, robust HF radio, 50 wats mind ! for military and commercial use.

Hi bro can you help me to get a microphone for my Barrett 950 hf radio. Thanks 73 De vu3mes Satyan

Thanks for sharing so much. My name is Michael Duff, son of Bruce Blair Duff son of John Duff IV born in Montreal CA his father was born I Edinburgh Scotland. There are also a good amount of Ross' in our family history. Love learning more always. Thanks for sharing you knowledge

Hi Roderick, do you have an exact address for MacDuff's foley in Scone? I am trying to follow your tour and am struggling to locate this

Hi Rod, Not sure if this will get to you so long after the original post but worth a try. I have recently acquired a NOS HF90E and, given the stealth antenna is no longer available, would like to make one. You gave the broad details but I was hoping you could give a little more info please?, Thanks, Howard VK4BS

Hi Rod. Subscribed. Quite an achievement to design and successfully market such a great radio. I think there is still a market for a simple and affordable HF radio, be it for remote 4WDers, or aid agencies and the 3rd world. So I take it you sold Q-MAC to Barret, who have since been taken over by Motorola. Your radio definitely stands up there with Codan and Barret, maybe gives Sunair a bit to think on too?

Hello! Nice radio! Where can I get one in Europe? Do you sell used equipment? 73!

I’m an American, Tod McElduff not sure where I should I start. Not know I go much about anything only can assume we are all fighters. If anyone could send me a message of where I can start good, bad, or indifferent.

My grandfather's grandmother emigrated to the US in 1861. The whole family worked in the mills and they all came to America.

I am looking for Qmac Batteries 2080-03-06 12V9 Ah Battery Long Endurance

Thanks for taking the time to walk through the design of this amazing radio, so often these insights from the designers are lost to time. I think the use of DTMF was an ingenious way to implement the user interface whilst simplifying the design at the same time. And by using simple standard components you were doing "design for manufacturabiliy" back before it was cool! Seeing the prototypes and how close to the concept model you were able to implement the final design is a real plus, and a good lesson to all engineers.

MacBeth....Shakespeare.....3 Witches of Scotland...Lord MacDuff....The Thane of Fife...

Mark Duff.....ancestors since 1740s in New world...Virginia & Kentucky...

Octagonal church? Indicative of the Knights Templar. 👍

Great Video, Thank you.

Thank you. I'm from across the pond, and know little of Scottish history. Visiting would be lovely, but with the state of the world, I don't know when that could be. I'm glad I get to see video.

Thanks so much for this video. I stumbled across this while looking for a whisky that my ancestors may have a hand in, but found something more important, and also whisky my ancestors may have had a hand in! I'll make it there one day.

Hello Roderick, this is Robert Earl Duff from Kentucky USA saying thanks! I enjoyed this video and I’ll be viewing more of your videos soon. Have a great 2022 Sir!

Excellent job Rod, you're an inspiration

I'm a MacIntosh (Clan Chatham) which I think descends from the Macduff.

Thanks cuz, excellent video

I also have ancestors from Johnstone around the same time middle to late 1800's , Stafford family lived in Graham street , I'd love to hear from anyone with any info .

My husbands uncle lived in edenboro"sp" for several years reserching and said they were decended from Macduffs thru the Bradley family. Don't know if true!

I owned a Sinclair ZX80 and 81 and now a QMAC HF90 - who would have thought!

Thank you so much for your time and energy, I really enjoyed this video ! I might be a descendant of clan MacDuff, but I don't know how to know for sure. I'm from Bretagne (France) where my family has been established for at least a century or two. I have no idea how to start my genealogy research journey, but I am fairly sure it will lead me to Scotland, given my name and where I live... Do you have any advice on starting it ?

What I read of the early irish monastic the Weymess caves were used by early Culdees missionary hermits. I wonder if the Culdees learned the pictish language, as they were 200, 400-600ad. The abbots of abernathy where Culdees (an eastern-orthodox irish monastic decentralized sect that predates Roman Catholic by 200 years, direct disciples of Christ and their priests married and passed titles father/son), from what Ive read, in this religious seat of Scotland before St. Andrews (which became the later seat with a new roman catholic lie in the 11th century.

Hi Roderick Shaun VK2HAD here just getting back into radio after a long hiatus. Just bought a Qmac from Kieth Perry who I guess you know. Very interested in one of those stealth antenna. Any idea how to get one. Cheers

Hello, cousin! I am descended from the Duffs in Banffshire. I live in North Carolina, USA.

Hi Rod I tried to edit a couple of channels and during the programing it came up with an error. I switched the radio off and now it wont go into programing mode it displays its 2-203 and then 4028 with a tone from the speaker and sounds like its Rx on 4028 is there a reset or something to get it going again. Hope it can be reset I have reprogramed this radio before so not sure what happened. Thanks.

Utter toilet of a town.Sorry.

Hi Roderick. I am in Perth too. I have bought an HF-90 secondhand from another technician. Could you please help me get the programming software and cable pin-out?

Thank you for posting. Shaw MacDuff was my twenty fourth great Scottish grandfather. I did not even know that I had Scottish and Duff blood in me until I was 67, after 35 years of researching my ancestory. God bless you, Sally in Texas

Hi Roderick. My mom's clan is MacDuff, through the Shearer family from Alves, which is east of Elgin and straight north of Dufftown. Ever hear of that name? From what I read, they are a sept of Clan MacDuff. I also found Abernathys on both sides of my family and traced them back to Hugh, Orm and Gillemichael MacDuff, because the name changes from Abernathy to MacDuff, when you trace them back. Also interesting to know the first chief of Clan MacKintosh was Shaw "MacIntoisch" MacDuff. Cheers!

What have you found to be the main difference between MacDuff and Duff family lines ? Where and when did the split happen ?

My grandmothers family were very proud Duffs, coming to the US about 1825. We settled in Indiana Terr (currently North-West Virginia) and have a US line of doctors, lawyers, and corporate executives in our Duff line. The Duff uncle I was named after is remember today (Memorial Day) having 29 missions as B-17 tail gunner bombing the daylights out of Germany, so you might say the Duff line has paid back the bombing at least thirty-fold. Several generations of Duff women in the family are concert pianists and school/math teachers. Listening to my grandmother, Ive picked up the responsibility of carrying on with the Duff line, gathering US members together at Highland games under the Clan MacDuff Society of America - from WV to Florida. Can you PM me via messenger please ? Thank you for your time, work, and expense putting this great video together. I will put a link to it on our FB page for Deep South clan Macduff.

Hi Roderick I got a QMAC HF 90 trx with manual tuner in an auction here in Nepal. Will be thankful if you kindly could refer some info about using the tuner . Regards from Nepal. De 9N1AA.