Friday
3
I will not be at the Baylands at all. I am en route to Seattle and Victoria, BC. Have fun everyone. See you next year. Hiroki AH6CY
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QMX+
12
Doug, Turning blue wouldn't be good for your heart. I hope your recovery has been on track. I had a mini-disaster yesterday trying to test my QMX+ on the air. The bottom line is that the radio performed very well in receive but I still don't know how well it transmits. The WX was pretty nasty at the Baylands as you may know; cold and very windy, about the worst operating condition I have experienced there. I set up my home-brewed magnetic loop outside my car and I was operating sitting inside the car. The antenna kept falling down. In between re-erecting it and its falling downs, I listened on 20, 17, 15,12 and 10 m. Signals were pretty good on all 4 bands, (The QMX+,as you know, is 10 bands capable including 160 and 6, but I only tested on 4 bands). I heard an LU station on 10 coming in 579. He was working many Ws and I called but he didn't respond. My power was probably about 4 watts and I assume all other stations to which the LU responded were running 100w or higher. When I started to call CQ on 12 when my antenna fell down, this time cracking the tuning capacitor, putting the end to my test. One thing that consumed a lot of my time yesterday was figuring out all the controls. It is more complex than those of the uSDX radios. There is a menu and sub-menus. Getting to some specific functions takes a steep learning curve. It took me nearly half an hour to figure out to activate the CW sidetone, for example. Even though I had read through the operating manual before I left home, it was't easy to operate the radio. On my bench test at home, the radio is putting out 3-5 watts depending on the band. The higher voltage you feed the higher output you get but they don't recommend to go higher than 12v (not even 13.8v, often that's the real voltage you get when you use a 12v power supply.). My 12v LiPo battery pack produces 13.4v when it is freshly recharged. I built a -1.4 voltage dropper using two diodes and inserted it between the battery and the radio. So stay tuned for more testing this thing out. I will be going out of town early next week for a couple of weeks. So I may now have an opportunity to do much more for a few weeks. Hiroki AH6CY On Dec 13, 2024, at 5:57 PM, Doug Hendricks via groups.io <ki6ds1@...> wrote: Hiroki, where is the report for the activation of the qmx+. I'm starting to turn blue from holding my breath. Doug
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Delta loop antenna article
7
For those of you who have seen my portable delta antenna at the Baylands and been wondering about the specs and how I built it, here is the write up. This is a galley proof of the article that will appear in the March 2025 issue of the RadCom magazine. Please do not distribute it outside our group until mid-February. Hiroki AH6CY
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QMX+ Cheat sheet
Regarding the QMX cheat sheet, I just did a search on the QRP-Labs google io site and as on 9/3/23 Han said there is no cheat sheet as yet for the QMX. Joy N6GO
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Friday
12
I plan to be at the Baylands starting with lunch. I am going to try putting on the air a just built QMX+ SDR radio from a kit. It has (sort of) replaced my (tr)uSDX and uSDX+ (both of which I sold.) The QMX is a different from the uSDX series of Chinese made radios. Different hardware and different software, whereas all the uSDX radios share essentially the same circuits and hardware components. The QMX is designed to be all modes but the SSB feature is not yet implemented yet. Just CW and digital modes. Hiroki AH6CY
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Fw: [The122GProject] Update #4 Finally some pricing :)
Want a QRP project that is totally different? VK3AC, VK2XAX and other Aussies have been busy with the next generation design of a radio for 122 and 134GHz. It's based on a chip originally designed for auto radars, but with an added antenna can have range of many miles. Hundreds of hams around the world are using the previous generation board. Basically what you need are the loaded board, a feed horn and that dish from your roof with the Direct TV logo. Also a receiver for 144 MHz. That could be a multi-mode radio or an inexpensive receive only SDR dongle and a laptop. At this time, people are placing orders. Shipment is probably summer of 2025. FYI, the world record for amateur contact on 122GHz is held by locals using the earlier chip. Mt Vaca to Mt Umunhum on a day with very low humidity. ----- Forwarded Message ----- From: Tim - VK2XAX <vk2xax@...> To: "[email protected]" <[email protected]> Sent: Sunday, December 1, 2024 at 03:44:19 PM PST Subject: [The122GProject] Update #4 Finally some pricing :) Hi all, Good news, we have pricing :) Made board = $419 USD PCB only = $3 USD Conical Horn = $42 USD Chaparral feed = $21 USD IMU Horn = $21 USD Coupler = $10 USD Current Estimated lead time is 31 weeks from order placement. This is due to the OCXO being a bit special and having a lead time on supply of 29 weeks. So... Lets all have a think about our requirements and let me know if you want to adjust your interest quantities. Interest sheet is here... 122/134GHz interest I'll get a last quote in the first week of February to cater for any changes in quantities but I don't expect the pricing to change too much. cheers Tim -- VK2XAX : QF68KM : ITU59 : CQ30 : ORARC : WIA
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Friday
6
I will be at the Baylands starting with lunch at Bay Cafe. Hope to see many of you. Both the WX and CONDX are looking good. Hiroki AH6CY
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Free to good home: Unistrut material. 4 pieces each about 10 ft long. They are H E A V Y
4
4 each 10 feet long, 1 & 5/8 x 1 & 5/8 HEAVY Unistrut material. It was sourced from a solar panel operation where they used it as part of the roof rack for solar panels. When I worked in radiology this type of Unistrut was used on the ceiling to hold thousands of pounds of X-ray equipment. I did a google search to see some typical uses around the home may be. Ceiling Storage Rack: Maximize your garage or shed space by building a ceiling storage rack. Ideal for storing seasonal items. Shelf wall Exposed Storage: Create an adjustable wall storage solution, perfect tools, heavy items you store in the garage. (We used it to store big heavy items in the garage, it had three very strong shelves) Unistrut Caster Base: A mobile base for heavy machinery or storage cabinets, making them easy to move around an area. Grape Arbor: Ideal for supporting vines and creating a shaded area. These pieces are H E A V Y. We can bring them down to Baylands for you to pickup when we are doing ops on a Friday or we can make other arrangements for pick up. Joy N6GO
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Baylands tomorrow?
9
I plan to be at the cafe for lunch and later down by the bay for operations. Dave W6VYC Yahoo Mail: Search, Organize, Conquer
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Another Freebie
Free to a good home (part 2): Computer History Museum (Mountain View) paperweight, approx. 5 x 6", 2.25 pounds; never used, in original box. A nice accent for your office or shack, plus you can use it to plan your trip to the CHM! Best, --David KM6RI
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K7QO's QRP Lab Notebook
I don't know if you guys remember Chuck Adams presentations at the Pacificon QRP group? He is a very creative guy who can show you how to make PCBs and other QRP stuff. K7QO¡¯s QRP Lab Notebook V6.6 Aug 2020 : Chuck Adams : Free Download, Borrow, and Streaming : Internet Archive Enjoy, Dave W6VYC
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New DX from Buddipole Hex
On November 26 at the home QTH I had a qso on 10m ssb with HD8CW who was on a dxpedition in the Galapagos Islands that was sponsored by Buddipole. He was using an IC 7300 running 100 watts to a Buddipole Hexbeam and working the world¡¡huge pile-up and all paid for by our friends at Buddipole. Hey guys there are some possibilities here. Think of an all expenses paid dx adventure to some beautiful tropical island in the far Marquesas with minimal equipment to shlep. I¡¯m thinking of our more intrepid colleagues(are you listening Dave C, Paul Z, Hiroki?). Something to ponder perhaps. K6OKDave
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ZachTeks Black?Friday Sale
Howard et al, In case you haven¡¯t seen this. Hiroki AH6CY Sent from the all new AOL app for iOS Begin forwarded message: On Friday, November 29, 2024, 05:20, ZachTek <harry@...> wrote: Take the opportunity to get a WSPR transmitter or other RF product for a great price during my Black Friday sale!? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Can't see this message? View in a browser Black Friday Sale Starts Now! Take the opportunity to get a WSPR transmitter or other RF product for a great price during my Black Friday sale! Find Out More Share on social Check out my website This email was sent from this site. If you no longer wish to receive this email, change your email preferences here.
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NaP3 Setup for Panadapter and Waterfall Display from QRP-Labs QMX/QMX+ Transceiver
2
This post is from the QRP Labs google group by Carol KP4MD. It¡¯s how to setup a Pandapter and waterfall display for a QMX/QMX+. She also loaded a couple of videos of the waterfall display showing CW and also SSB being received on the QMX. I think I saw recently something on the forum about Hans adding SSB capabilities soon, The future addition of SSB was know when he announced the QMX but said it would come in a future software update. Maybe the future in now! He usually makes big announcements at Hamvention so maybe he is waiting for ¡°Four days in May¡± for SSB. I hope he releases it sooner. NaP3 Setup for Panadapter and Waterfall Display from QRP-Labs QMX/QMX+ Transceiver /g/QRPLabs/topic/109744553 Joy N6GO
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A Powerful Gift!
2
Free to a good home is a vintage Knight Kit P-2 SWR/power meter. These are simple and rugged units with many uses, 5.0/5 rating on eHam. This particular P-2 has the interesting characteristic of being hyper-sensitive. When passing 5W to a dummy load, I had to turn the sensitivity control almost all the way CCW (i.e., min sensitivity) for full-scale power meter deflection on the Forward setting. Another P-2 that I own required nearly full-CW rotation (i.e., max sensitivity) for FS reading on Forward under same condx. If I connect the gift P-2 "backwards," i.e., transmitter to antenna port and vice-versa (forward / reverse paths are symmetrical), sensitivity appears normal. Wiring appears correct and the knobs are new. Could make an interesting project or could be a "feature" for QRP ops! Any takers? Best, --David KM6RI
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Pipe sizes
Some while back, there was a discussion about pipe sizes. For example, does ?¡± specify the ID or OD? In the 21st century the correct answer is neither. Starting in the early 1700¡¯s steam engines were being developed. They needed pipes for steam and water. Different shops started making pipes and fittings and valves. Then the steam engine people wanted higher pressures which meant thicker walls. If the OD was kept the same, fittings and valves did not need to be re-tooled. So the ¡°next generation¡± of 1 inch pipe might have an ID smaller than 1 inch. From time to time, improvements in metallurgy and processing allowed thinner walls and cost reduction so the ID might be bigger than 1¡±. And every shop had it¡¯s own specific sizes. Why would they want to share the business with a competitor? In the 1920¡¯s standards committees published ¡°schedules¡±. ¡°1/2 inch¡± refers to a schedule (or table) of dimensions. PVC pipe commonly comes in Schedule 40 and Schedule 80. Both have an OD of 0.840. The ID is 0.602 for Sch 40 and 0.526 for Sch 80. I suspect that, ¡°40¡± and ¡°80¡± might be echos of terms originally meant for 40 or 80 psi steam. There are different schedules for copper pipes and stainless steel pipes and ... Anyway if you are thinking about a project, it is best to look up the schedule of dimensions to know what size wooden dowels and U-bolts you will need. And you can blame this situation of a committee. More history here: https://en.wikipedia.org/wiki/Nominal_Pipe_Size and here: https://www.eng-tips.com/threads/pipe-schedules-amp-sizes.336095/ Be sure to scroll down to see all the messages in this thread.
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QRPops Zoom meeting tomorrow 11:45-1:45 for those interested
3
Hello all, Looks like we're in for nasty weather. I have set up a Zoom meeting for all who are interested: Join Zoom Meeting https://us02web.zoom.us/j/83902636295?pwd=qJTZPPDcwAq9gu5jya4EJ6qFabYTA9.1 Meeting ID: 839 0263 6295 Passcode: 837582 --- One tap mobile +16694449171,,83902636295#,,,,*837582# US +16699006833,,83902636295#,,,,*837582# US (San Jose) 73 Howard N6POM
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Friday
3
The WX looks unsuitable for outdoor ops. I do not plan to go to the Baylands at all. Have a great Thanksgiving everyone. Hiroki AH6CY
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New DX entity
7
Yesterday, running QRO at the home QTH on 10m cw, I had a qso with ZD7VJ on St. Helena Island. If you recall your high school history it was Napoleon¡¯s final stop after he met his Waterloo. RIP Monsieur Bonaparte. K6OKDave
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OT - if you are looking for a cheap but great trip
3
Because of the very weak Yen, you can have a glorious trip to Japan cheaply now. Not only can you fly cheaply by ZipAir (a subsidiary of the JAL) as below, you can get a decent hotel room for under $100/night (with breakfast!) in Tokyo and eat each meal under $10. This sort of situation has never happened in my life time and it will unlikely happen again. Just in case you are interested. Hiroki AH6CY Ps I don't work for the Japanese Tourist Bureau, nor for the Japanese government. Begin forwarded message: From: "ZIPAIR Tokyo Inc." <no-reply@...> Subject: ¡¾ZIPAIR¡¿BLACK FRIDAY Special Sale From Los Angeles to Tokyo (Narita) USD 208? Date: November 19, 2024 at 5:01:55 PM PST To: hirokik@... To unsubscribe, please set it on the ZIPAIR official website. This email has been sent from an automated email address. Kindly refrain from responding to this message. Copyright ? ZIPAIR Tokyo Inc.
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