开云体育

Pacificon 25 is going to be remembered as the return of qrp year. You can register and get your hotel room at Pacificon25.org for the 3 day conference that will be held the second weekend of October. I want QRP at Pacificon to be a success this year and I have decided to pass out at least 60 kits in each of the 6 qrp themed talks at Pacificon. We will be giving away absolutely free to the people who attend each lecture qrp kits. To get all 6 kits you will need to be at each lecture. And the kits are good ones. They will include the S1,S9 generator that was kitted by the NorCal Qrp Club. It has deactivated, but there were left over parts for the S1, S9. Darryl Swenson, K0AWB, donated most of the parts needed, and I supplied the rest. But the major portion of the parts was there. We have 60 of these kits. The next kit will be a simple voltage meter, that has a 2.1 x 5.5mm jack, a switch and a 3 digit display. Plug in a battery and read the voltage. Next are 2 boards to build the improved version of the Tuna Tin S transmitter that is the subject of Carol's talk, with the board done by John Sutter. You will get the main board and a 1 band module board. Kit #4 will be a continuity tester. Simple kit used to test to see if you have continuity between two points on a board. Kit #5 will be a dummy load that is built from 1206 resistors. It will give you lots of practice soldering 1206 surface mount resistors (board will be done by John but he doesn't know it yet). And kit number 6 will be a surprise. (I don't know what it is yet, so it will be a surprise to me too!! If you are on the fence about whether or not to come to Pacificon, maybe this will tip the balance in our favor. Yin Shih, N9YS is working hard to upgrade the original NorCal 40 to a modern radio with all kinds of upgrades. The kit will be available to anyone who attends Pacificon in person. Most of the parts will be premounted, and all that you will have to solder will be the frequency dependent parts and the connectors. It should take about 2 hours to build the rig. It will be available from me on Friday morning so you will have all day Friday and up til Saturday evening to finish building it. We will have an operating event on Saturday evening that will use the rig. Friday activities include passing out the Pacificon 40 kit, and our special no host banquet at Panera Bread, arranged by Dr. Megacycle, Jim Duffy of Albuquerque, who has 30 years experience of arranging banquets for us. We will meet in the lobby at 4:30 and leave at 4:45 for the restaurant which is about a mile away. Then we will come back to the hotel and our Friday night activities will start at 7:00 with our famous QRP Auction featuring auctioneer Doug Hendricks, KI6DS. There is a new feature this year in that we will be auctioning at least one of every Cal Qrp Kit that we have done in the last year. These kits are complete and just like the ones that we all had a chance to build during the year. No other items will be auctioned and the proceeds will go to the CalQrp Club. After the auction, we will have a show and tell of all of our home built projects. Everyone is encouraged to bring their projects for the event. This should be huge as we all have at least a dozen projects from the club. Bring your kits that you have built and modified for the rest of us to enjoy. And there will be time for those of you who haven't finished your Pacificon 40 to get expert help in aligning your rig. Saturday is the big day. We have 6 world class qrp speakers lined up to speak and the sessions are from 9 to 4 with an hour off for lunch. Then Saturday evening we will have our operating event using the Pacificon 40. Plus, we will have a building contest for any project that you have built in the past year since the last Pacificon. The top 3 will discuss and present their projects to the group, each getting 10 minutes. CalQrp has gone all out to make this a memorable qrp event. All we need is participants. Help us out and help yourself out by coming to Pacificon 25. You can register now by going to Pacificon.org. Hotel

Hello All, The 2025 Sasquatch Stomp results have been posted to the Sasquatch Stomp page on the pnwqrp.org website. If you google pnwqrp.org it will come up right away. We had good band conditions this time, especially on the higher bands. Participation was up, too due to the better conditions. A big thank you to all who got on for the event. 73, Wayne NB6M

I have, in the lab, freq standard voltage standard resistor standard all within 0.1% or better. NIST traceable. All I'm lacking is capacitor and inductor standards. I found the following on ebay and just for its looks alone I'm willing to eat up 10% of my remaining budget for parts to get one. You have to appreciate the design. IMHO. <https://www.ebay.com/itm/230687690580> 16.5nF 1% Needed for multiple L/C meter checking. I used to have some 104.0pF 1% caps, but can't find them. Inductors may be more of a problem. Ideas? Anyone else obsessed? -- chuck adams, aa7fo QRP WAS 17m started Apr 2, 2025 WAS-17 QRP --> TX,FL,SC,GA,OK,AR,KS,AL,AZ,MN PA,CA,CO,WI,NE,ID,IL,NC,NY,AL DXCC W,VE,JA,PY,ZL

Dear William Thanks for the comment. To be honest i did not realize or check there were ohr sub directory before upload. ?t was late night and I tried to help and share with ham spirit. I will check and remove if there were any duplicates. Sorry for inconveience 73s Hakan TA0G Yahoo Mail: Aray?n, Organize Edin, Y?netin 4:50’’17e’ 17 Nis 2025 Per tarihinde, k6whp <k6whp@...> ?unu yazd?: Hakan, Very respectfully, there are already copies of the four OHR manuals you uploaded. They are in the "OHR" sub-directory. You might want to inspect and -- if duplicates -- remove yours as space is somewhat limited. If they are NOT duplicates, then move the unique manual(s) into the sub-directory so as to keep them in one place and easier to locate. Again, meant politely. Thank you for your contribution. -- William, k6whp -------------------- "Cheer up, things could get worse. So I cheered up and things got worse."

Is there a specific groups.io site for Oak Hills Research transceivers? A friend of mine has an OHR Spirit transceiver, and he is trying to find information about it, manual, and schematic. Thank you. Dave K8WPE

Hello all, I owned years ago the OHR 500 (stupidly sold it) but today I got a OHR 100A in mint condition but without any documentation. Is there a digital version of the manual available? I did not find it in the Files section. vy72 Kees PA1CJT

Gang, Does anyone have a good source of polystyrene capacitors to point me to? I need a 330pF cap for my current project, plus some spares :) Thanks... Alan, N8WQ

For Dave, AA7EE, and anyone else interested. I added about 3 mins at the end of this video showing that a toroid inductor in free space, vertically mounted on a PCB or horizontally mounted on a PCB has the same value. Now the nits are going for the 3rd and 4th digit, but fluctuations occur in the process of moving the toroid around and the spacing of the leads, thus the stray capacitance across the toroid causes a very minor change in the total. I will come back, after I finish this and ADC-40 (I'm doing the transmitter on the side), and do a complete video on toroids and why they are your friend. Once you get over the fear of winding the critters, you will use them everywhere. Well, almost..... <https://youtu.be/hAM1GkzwXB8> is the video by AA7FO for your entertainment. Watch the whole thingy and add a like to help an old man down on his luck. :-) And trying to get to a polished presentation sometime in the future. ciao, -- chuck adams, aa7fo QRP WAS 17m started Apr 2, 2025 WAS-17 QRP --> TX,FL,SC,GA,OK,AR,KS,AL,AZ,MN PA,CA,CO,WI,NE,ID,IL,NC,LA DXCC W,VE,JA,PY,ZL

Hello, Has anyone built the Simple SSB Transceiver that was shown on the blog and videos by Charlie Morris, ZL2CTM? Any suggestions? https://zl2ctm.blogspot.com/2021/01/simple-ssb-transceiver.htmlExp While I was trying to figure out what parts to get for various projects I wanted to work on, I realized that he was targeting a portion of 80m from 3.5 MHz - 3.6 MHz for the Band Pass Filter. But in the USA, I cannot do 3.5 MHz - 3.6MHz because no voice mode is allowed on that portion in my region. So, I need to move this up. And really, since this will be QRP, I do not expect to be getting any DX. And since I would share this with others, most hams would have a General. And I probably be more interested in targeting 3.8 - 4.0 MHz since this is where I hear most things anyways. So, this is where I need to learn how to do some of the same math he shows in his videos and his blogs to come up with his Band pass filter and IF Amp, etc. So, my center frequency for a band pass filter would be 3.9MHz. I looked on kitsandparts for their low pass filter board only and looked at it. And its links and led me to LTspice which is free so I downloaded it. So, I will try to reproduce what Charlie did first. Then proceed with my own stuff. I wanted to get toroids from kitsandparts. But now I am not so sure. Because now I will need to re-think the project for my region. If I go with the NE5334 preamp and LM380 amp ICs, they both can be found at Mouser in stock. Anyways, I like the video how he went about designing it. I like the use of the double-balanced diode mixers. Except, I want to do Manhattan construction on island pads instead of strip board. Anyhow, I maybe over my head and need to learn the electronics math and theory here. But I thought I would see if others have tried first. I am willing to do my home work. There are some radios I have built to compare to in the past like Curt's transceiver and Norcal 40A / 40B. So, there might be things there I could learn from including its book EOR. Charlie did mention he used the book Solid State Design for the Radio Amateur as a guide. Anyways, when I was at Adafruit, I noticed they were low on their Si5351A breakout boards. So, I ordered some. I liked how Charlie Morris showed the math how he determined values he got. So, that is a good starting point for me. I just got to figure out where he got that from. I even looked at the band pass/low pass filters at QRP Labs, but they take about a month to come from Turkey - and that is during good times. Not sure how things would be now. I do have a low pass/band pass filter from them for 40m but not 80m. But the filter is centered for CW - not SSB voice portions of the band. Thanks, Daniel KK4MRN

Alan, I feel for you bro. I ordered some valuable parts that I needed for projects from China before the tariffs kicked in. Envelopes worth $5.99, $6.34, $10.25, ... have been sitting at the airport and harbor in L.A.,CA for a week now and I am guessing that I will never see them. The backlog has got to be several warehouses full by now. The manpower alone has got be costing a lot more than the revenue for the small stuff. On 4/13/25 07:26, Alan N8WQ via groups.io wrote: > Gang, > Is anyone else having a delay in getting a shipment from Jameco? > I ordered parts on 3/25/25 and still have not received shipment. > Just curious... > > 73, > Alan, N8WQ > > On 4/11/25 17:04, k6whp via groups.io wrote: >> In keeping up with the mob, I had been buying my trimmers from >> JameCo. They are the ceramic ones and -- importantly -- a slot >> screwdriver fits and can turn the little buggers. (Done with the >> little brown plastic turdballs!) >> At increments of 10, they are 99 cents and at 100 are 89 cents. >> Be warned and be ready to order $20 of stuff otherwise they tap you >> for the difference. >> -- >> William, k6whp >> -------------------- >> "Cheer up, things could get worse. So I cheered up and things got >> worse." >> > > > > > -- chuck adams, aa7fo QRP WAS 17m started Apr 2, 2025 WAS-17 QRP --> TX,FL,SC,GA,OK,AR,KS,AL,AZ,MN PA,CA,CO,WI,NE,ID,IL,NC,NY,AL DXCC W,VE,JA,PY,ZL

I am building an Ozark Patrol regen. The stock tuning range is very large and I would like to limit it. By default, there is a SPDT switch that adds a parallel capacitance for a second range. My goal is to align the two ranges with the 20 and 40 m bands. Math shows that I need two fixed capacitors (one in series with the tuning, one in parallel with that) for each band. My thought is to replace the SPDT with a DPDT. I would build the circuit for 20 m and the switch poles would select in the appropriate differences to each fixed capacitor. Does this seem reasonable? Is this how it's done?

I downloaded the SP-1, 20M manual just now. Thanks, Chuck! https://archive.org/search?query=ohr+spirit+1 Steve AA7U

https://www.aliexpress.us/item/2251832645851677.html?ug_edm_item_id=2251832645851677&pdp_npi=4%40dis%21USD%21%2417.00%21%2417.00%21%21%21%21%21%402151e05a17444595335345189d181e%2165026062923%21edm%21%21%21&edm_click_module=item_detail&edm_log_data=edm-item-list-one-column.store-product-log-link&tracelog=rowan&rowan_id1=aeug_edm_84139_1_en_US_2025-04-12&rowan_msg_id=3212biz_search_product%3A0%3A0_577655577%24d173c597c1fe471fbc2d817627cca52e&ck=in_edm_other&mem_info=Kh9KBwMNoU8nqYqW8afaqA%3D%3D-100103-aeug_edm_84139-NeUIED0Kpdu1EGthwcNhm%20OAyttfpOfUucGiWZhD0C8%3D&gatewayAdapt=glo2usa

It appears that most of the chips, transistors, electronic parts are now exempt from the tariff. Mostly I believe codes 8541 and 8542 affect us. https://content.govdelivery.com/accounts/USDHSCBP/bulletins/3db9e55 Updated april 11th. ?