开云体育

Well I finally got my email working again so I'm late getting this out to all of you. THIS SATURDAY IS BOTH THE PRESCOTT HAMFEST AND THE REGULAR AZ SCQRPIONS MEETING AT FUDDRUCKERS, I17 AND DUNLAP. 10:45 AS USUAL. IF YOU ARE A KAMAKAZEE AND GET UP AT OH DARK THIRTY TO MAKE IT TO PRESCOTT AND THEN BACK TO PHOENIX BY 11AM, I HOPE YOU FIND SOMETHING SPECIAL FOR SHOW AND TELL AT LUNCH! i AM NOT A KAMAKAZEE SO I WILL BE GOING TO THE MEETING ONLY. AS USUAL, IF YOU HAVE SOMETHING FOR SHOW AND TELL, OR JUST DID SOMETHING SPECIAL FOR YOU, COME TO THE MEETING AND SHARE IT WILL THE GANG. YES, I KNOW, IM SHOUTING! I DIDN'T WANT ANYONE TO NOT SEE THE MESSAGE! ;>) BEST 72 MIKE BAKER K7DD

Hello, I'm designing an audio stage after a BFO diode ring mixer and I seem to be having trouble converting a 50-ohm impedance to something the amplifier can handle (10K input). I know how to convert impedances with RF signals using toroids, and I assume that the exact same would apply to audio. Does anyone know of a toroid or ferrite core that is decent at audio frequencies? Richard (VE1XOR)

My NorCal 40A (Wilderness Radio version) has become sick and I am wondering if there's a way to do a reset/reboot. The code speed is stuck at 25 WPM irrespective of the speed pot setting -- full CCW or CW. Any ideas? Thanks in advance. -- William, K6WHP "Cheer up, things could get worse..so I cheered up and, sure enough, things got worse!"

Guys, I know this is OT but at Dayton I was able to find an AEA MT-1 code trainer, the same one I learned on when studying Morse for my Extra 25 or more years ago. I wonder if someone knows about this and has the instructions. I can find on line all the AEA products but this one and the instructions for the BT-1 don't work on this unit. It looks pristine and works as a code oscillator but I can't get the programming to work. Any help will be appreciated. Thanks in advance. Dave K8WPE Please respond to Djwilcox01 at gmail dot com.

Gang, Diz, W8DIZ, owner and operator of KitsAndParts.com just posted to the list related to the 1W the following message. Put here for your information and a heads up. -------- Thanks to all that purchased a 1W20 kit. Total 1W20 kits sold was 360. Remaining 1Watter Inventory is as follows: 1W10 = 3 1W30 = 13 1W40 = 6 1W160 = 4 Any of there kits could be converted to another band but I ain't doin it :) You'll need to order the required xtals etc. Thanks again to all that played with the 1Watters...last serial number shipped was 1022 Oh...and a special thanks to Uncle Chuck for helping sales with his great tutorials!!! 73, Diz, W8DIZ ------- 1. If any one is interested in getting in on the last 13 (a prime number), I can do a quick set of videos on building it and testing it showing the parts values for 30m instead of 20m as I did in the last videos. 2. For those of you that are hoarders and have an unbuilt 1W that is a part of the 1022 and you know you are not going to bet it built, how about offering it up to members of the group so that they can get one while they aren't in the landfills of the world. Please. I can get the 30m videos done in one day. Preferably today, as tomorrow I've cleaned off the workbench in the garage to build a 2m R/C glider so I can fly on Saturdays this summer in AZ where we have numerous thermals. My heartfelt thanks to Diz for producing the kit and what a joy to build and operate. The years go by quickly and kits come and go. Any one got a kit in the works for under $50 that replaces this one? FYI chuck, k7qo

Got a QSO at 1629UTC this morning after a few days of playing around. I just don't know if anyone on this group is getting on. There is no activity that I hear from QRPers on the calling frequency of 14.060MHz. I know the you think the bands are poor for QRP, but look at my spots made with just 1W with a dipole (two MFJ 20m mobile whips) at 7m above the ground. Here are the reports from the reverse beacon network (RBN) at reversebeacon.net. If you have never used it, then just fire up the rig and try it. Call CQ using only a 2x2 format and you will get hits reported. Here are my spots: (the antenna lowered is when at 2.5m in courtyard surrounded by walls. I am QRS so that people will come back to a CQ. showing spots for DX call: K7QO search spot by callsign de dx freq cq/dx snr speed time VE6WZ K7QO 14060.3 CW CQ [LoTW] 4 dB 17 wpm 1546z 13 May VE7CC K7QO 14060.1 CW CQ [LoTW] 9 dB 17 wpm 1546z 13 May VE6JY K7QO 14060.1 CW CQ [LoTW] 5 dB 17 wpm 1546z 13 May W7HR K7QO 14060.1 CW CQ [LoTW] 5 dB 17 wpm 1546z 13 May VE6WZ K7QO 14057.2 CW CQ [LoTW] 7 dB 17 wpm 1545z 13 May W7HR K7QO 14057.0 CW CQ [LoTW] 6 dB 17 wpm 1544z 13 May VE7CC K7QO 14057.0 CW CQ [LoTW] 5 dB 17 wpm 1544z 13 May VE6JY K7QO 14057.0 CW CQ [LoTW] 3 dB 16 wpm 1544z 13 May VE7CC K7QO 14056.9 CW CQ [LoTW] 4 dB 19 wpm 0013z 13 May VE6WZ K7QO 14057.1 CW CQ [LoTW] 3 dB 15 wpm 2306z 12 May W7HR K7QO 14056.8 CW CQ [LoTW] 6 dB 15 wpm 2305z 12 May VE6JY K7QO 14056.8 CW CQ [LoTW] 5 dB 15 wpm 2305z 12 May W7HR K7QO 14056.9 CW CQ [LoTW] 11 dB 17 wpm 2254z 12 May VE6JY K7QO 14056.9 CW CQ [LoTW] 5 dB 17 wpm 2254z 12 May VE6WZ K7QO 14057.1 CW CQ [LoTW] 8 dB 17 wpm 2254z 12 May VE7CC K7QO 14056.9 CW CQ [LoTW] 6 dB 17 wpm 2254z 12 May VE6WZ K7QO 14057.3 CW CQ [LoTW] 4 dB 17 wpm 2206z 12 May W7HR K7QO 14057.1 CW CQ [LoTW] 11 dB 17 wpm 2206z 12 May VE7CC K7QO 14057.1 CW CQ [LoTW] 10 dB 17 wpm 2205z 12 May W7HR K7QO 14056.9 CW CQ [LoTW] 2 dB 17 wpm 1711z 12 May antenna lowered N7TR K7QO 14057.0 CW CQ [LoTW] 4 dB 17 wpm 1711z 12 May antenna lowered N6TV K7QO 14056.9 CW CQ [LoTW] 4 dB 17 wpm 1711z 12 May antenna lowered W7HR K7QO 14056.8 CW CQ [LoTW] 1 dB 18 wpm 1654z 12 May N7TR K7QO 14056.9 CW CQ [LoTW] 3 dB 17 wpm 1653z 12 May VE6WZ K7QO 14057.1 CW CQ [LoTW] 3 dB 17 wpm 1653z 12 May N6TV K7QO 14056.9 CW CQ [LoTW] 2 dB 17 wpm 1653z 12 May VE6JY K7QO 14056.8 CW CQ [LoTW] 9 dB 17 wpm 1652z 12 May VE6JY K7QO 14056.8 CW CQ [LoTW] 4 dB 17 wpm 1611z 12 May N7TR K7QO 14056.9 CW CQ [LoTW] 9 dB 17 wpm 1609z 12 May W7HR K7QO 14058.0 CW CQ [LoTW] 1 dB 17 wpm 1509z 12 May N7TR K7QO 14058.0 CW CQ [LoTW] 11 dB 17 wpm 1509z 12 May W7HR K7QO 14056.8 CW CQ [LoTW] 4 dB 17 wpm 1503z 12 May N7TR K7QO 14056.9 CW CQ [LoTW] 24 dB 19 wpm 1502z 12 May VE6JY K7QO 14056.8 CW CQ [LoTW] 7 dB 15 wpm 2153z 11 May VE7CC K7QO 14056.8 CW CQ [LoTW] 4 dB 15 wpm 2146z 11 May VE6JY K7QO 14056.8 CW CQ [LoTW] 6 dB 15 wpm 2146z 11 May VE7CC K7QO 14056.4 CW CQ [LoTW] 5 dB 15 wpm 2134z 11 May W7HR K7QO 14057.0 CW CQ [LoTW] 4 dB 17 wpm 2106z 11 May N7TR K7QO 14057.0 CW CQ [LoTW] 19 dB 17 wpm 2104z 11 May VE6JY K7QO 14057.0 CW CQ [LoTW] 7 dB 17 wpm 2104z 11 May VE7CC K7QO 14057.0 CW CQ [LoTW] 6 dB 17 wpm 2104z 11 May N7TR K7QO 14053.4 CW CQ [LoTW] 18 dB 16 wpm 2021z 11 May VE6JY K7QO 14053.3 CW CQ [LoTW] 7 dB 16 wpm 2021z 11 May VE7CC K7QO 14053.3 CW CQ [LoTW] 4 dB 16 wpm 2021z 11 May W7HR K7QO 14056.5 CW CQ [LoTW] 6 dB 17 wpm 2018z 11 May VE6JY K7QO 14056.5 CW CQ [LoTW] 9 dB 17 wpm 2018z 11 May VE7CC K7QO 14056.5 CW CQ [LoTW] 4 dB 17 wpm 2018z 11 May N7TR K7QO 14056.6 CW CQ [LoTW] 7 dB 17 wpm 2018z 11 May W7HR K7QO 14056.3 CW CQ [LoTW] 11 dB 15 wpm 1802z 11 May And here are two pieces of information that will help the home brewers. 1. You will get your transmit frequency reported within 100 Hz. Good enough to mark your new faceplates. 2. You'll get your code speed to check the calibration of your uP based keyer. The W8DIZ keyer is dead on all the time in the 1W when you set it with the paddle data entry. WAS 1 worked 49 to go DXCC 1 worked 99 to go chuck, k7qo, using an illegal 1W without a serial number

I bought a set of these for my NE4040 project. Was going with 1/4W, but thought I could get some extra space in 100mm x 100mm board by going 1/8W. <https://www.ebay.com/itm/153283774455> So, there are only 7 left, US shipping so no 25% tariff. Not made in the US, but then who is making 1/8W thin film resistors here? That's what I thought. FYI chuck, k7qo

I would like to share a video about my VFO project based on a si5351A and Arduino controlled by Smartphone. This video shows a test with a VFO based on si5351 controlled by Arduino and iPhone via Bluetooth. A radio based on chip CD2003GP was modified to support the VFO. Video: https://youtu.be/7gBRUmsrCus More about this project: https://github.com/pu2clr/VFO_BFO_OLED_ARDUINO 73. PU2CLR. Ricardo.

I happened to be browsing the QRP Guys website and found this link for a IRF510-based 3 band (40m-30m-20m) linear amplifier that puts out a max of 10 watts and is designed for a drive of 1 watt or less. https://qrpguys.com/cw-ssb-10w-amplifier Note that it is not a kit. All of the instructions are there as are the Gerber files but your are on your own w.r.t sourcing parts and PCB. My first thought was ... wow, this would be a great little add-on for all those One-Watters out there, for those times where having a little bit more than 1 Watt is useful. My second thought was that this could make for a nice group project ala Norcal 40. I don't know what the latest scoop is on cheap boards from China? Anyone aware of any good deals like we got for the NC40 boards (i.e. 10 for $5). I figure that if at least a few people ordered cheap boards and shared the extras for a nominal cost (really, how many 10w 3-band amps does one person need ?) this could be quite affordable. If some kind soul could find the time to put together a detailed BOM on Digikey or elsewhere that would make it even easier to source parts. Anyone else interested ? Cheers -- Michael VE3WMB / VA2NB

45.00 4SQRP Hilltopper 20 Also unopened. Original model Same as above. FDIM delivery preferred. $80.00 Please contact me off list Mike, W9QS <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> Virus-free. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

TAKEN -- William, K6WHP "Cheer up, things could get worse..so I cheered up and, sure enough, things got worse!"

My dear Weller WES51 departed this life three weeks ago after about 7 years of faithful service. I gave it a lash trying to replace the PCB but to no avail. The remnants are available to anyone FOR FREE plus the shipping. (It will probably require a USPS Priority medium flat rate box.) It's clean and well cared for. While I cannot guarantee anything, I am certain a talented and resourceful individual could breathe life back into it. It has been replaced by the newer model -- just because I like to pull EEVBLOG's Australia Dave's chain -- and it glares at me from the sidebar shelf; I am wracked with guilt which I need to expiate. Can reply through QRP-Tech but please send an email to k6whp.qrp@... for best response. -- William, K6WHP "Cheer up, things could get worse..so I cheered up and, sure enough, things got worse!"

Since Neil Hecht's sad passing, his fine L/C meter is unavailable. While there are a plethora of Chinese units on eBay (with concomitant multi-fortnight waiting period), are there any worth considering? I have a young friend I am Elmering who would like an L/C unit like the AADE. Recommendations gratefully accepted. -- William, K6WHP "Cheer up, things could get worse..so I cheered up and, sure enough, things got worse!"

Some months ago there was some chatter about a new all-mode transceiver (kit?) that was very inexpensive. As I recall, it was going to be for sale somewhere in the last month or two of 2018. Since then I haven't heard anything more, and, of course, I can't find any of those emails. Does anyone remember what I'm talking about? Did it actually appear? Has anyone used it yet? -- David Lininger, kb0zke Rev. 2:10 kb0zke@...

Hello, I realize that learning Morse Code will open up a lot more options for QRP kit-building (transceivers, keyers, etc.). My goal is to build out a field pack that will support SOTA-like operations, including antenna, coupler/tuner, transceiver, battery, and comm inputs (SSB, CW, and others). I am looking at several CW kits from various vendors that will provide a combination of "keyer", practice, and possibly decoding. I think that I want separate modules for the "practice", the "keyer", and the "paddles or bug". Ideally, the input which I use to learn will also work well in the field. I know that this question is almost philosophical, but I need to ask it: * Which input should I learn first for Morse Code: paddles or a bug ? Thanks in advance for your insights! Cheers & 73, Bob KM6BMX -- QTH in central AZ

I bought an EBL Li-Ion 4-battery and charger combo. The batteries are rated at 9V, 600 mAh, actual, 8.4V at full charge (2s 3.7V cells). The reports from Internet sources have generally been good. The battery weight is half that of alkaline. I used the charger to peak them before testing. The charger claims to be a CC/CV type. Using the ZB2L3 battery capacity tester, discharged one at 55 mA and another at 110 mA, 150 and 75 Ohm loads respectively (dummy load resistors). I discharged them to 8.4 volts according to data I found on various non-specific specifications. It took several hours to deplete them from 8.4V to 4.8V. Battery 1: 55mA, 590 mAh, Battery 2: 110 mA, 530 mAh. The internal battery protection circuits do the job too. When the 4.8 value is reached, the battery voltage drops to 0!. Did I damage them? Nope! Put them in the charger, charge light came on a a few hours later the green charge completed lights came on. All is well... ;-) I've used these batteries for other testing for anything that will work OK at 8V to 7V. If your device needs 9V then you may need to stick with alkaline. More later. Fun Stuff...