I built that power meter several years ago - a very good tool. Mine has been tested up to 500 mHz. The response is down about 3 dB at 500 MHz. Shield the input carefully, -70 dBm is the

Thanks for the link. I'll just wait for my membership approval to view the circuit. -- Tom Sevart N2UHC St. Paul, KS

Thought I'd better dig it out for you. It was buried

Tom, google "simple qrp qsk tr switch" and you'll find a nice one by N5ESE. Jim, W0EB Sent from my iPad

GA Tom, Checkout the NS-40 group photos. I uploaded a simple rf driven t/r switch a loong time ago. It was part of my cardboard combo and worked quite well. 72

Hi all, I won an NS-40 at Ozarkcon, got it put together quickly today and on the air into a dummy load with 5 watts. I plan to pair it with a VRX-1 receiver which I had laying around, but I need a

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Keep safe. - -- David Lininger, kb0zke EM37kt Rev. 2:10 kb0zke@... -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.22

Arrgh! T-storms and a tornado watch now that I have time for QSO's. 72/3, Doc K5OSA - QTH: EM04sr ARRL 4SQRP #801 - NAQCC #7625 - SKCC #10098 - FISTS #17157 - OMISS #9886 LFSARC (Lawton/Fort Sill

No, it can’t do R. I was just writing fast and listening to my dog at the time. J But I actually was thinking about building an ohm meter this week. I have been wanting to do that for a

I originally built the Bill Carver L/C meter (I did not know it also did "R"), and it worked quite well. I did not get to the point of creating a spreadsheet to translate the readings, but

Thanks Dave. 72 WAØITPI love this radio stuff.www.wa0itp.comwa0itp@... On 4/18/2015 2:35 PM, ad7jt@... [4sqrp] wrote:

I just loaded a copy of my presentation slides to the files area. Let me know if you have trouble opening and viewing them and if you have any questions about the NAT - SNA. 73, Dave Collins -

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the 4sqrp group. File : /SNA Presentation-ozarkcon-2015/SNA

I use a simple but accurate homebrew LCR meter. The AADE meter originated from an article by Bill Carver in the Communications Quarterly and also shown in EMRFD by

Four State is pleased to release the 4S-LPF Low Pass Filter. Featuring the famous NMØS Spiral coils, it is a None Simpler design. This Low Pass Filter (LPF) is a must have for experimeters and those

I built one using plans from off the net https://sites.google.com/site/vk3bhr/home/index2-html It uses a PIC chip, so I had to program that. I used the board pattern and etched a board, drilled,

Dave, Was going to send you a $14 check for the SPRAT DVD, but did not know if you had left for OR yet. Are you still in Tucson? I'll get you a check out today, if you are. ciao dude, chuck,

Don't forget. The monthly SSS is this coming Sunday, one week later than usual but still from 7:00 to 9:00 CDT. 72, John AA0VE 4SQRP contest coordinator

Hi All, The AADE L/C meter is one of my most often used pieces of test gear. I've had mine for several years, and it does a great job. There are alternatives, and one I picked up not long ago on