Hi Danny, After our conversation I was looking for a reason to try simple DSB operation again. FD is always a good time to try things out. It still amazes me how much fun simple DSB transceivers can b

I used my homebrew 40M DSB transmitter w/battery power this weekend. I operated about 2 hours total and enjoyed myself quite a bit. At approx. 2W ERP I worked 8 contacts. After FD was over I also work

Jon - Congratulations on building your DC receiver. Not many people build from scratch and even fewer build receivers. Just a thought for future experimentation. You have “Experimental Methods in RF D

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 while. I have

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 W7ZOI. http://www.qsl.net/wm5z/cq199

This looks like a nice kit. I built the Radio Shack Globe Patrol many years ago. It was a gift for my brother who passed away before building. http://www.qsl.net/kc6vdx/gear/globe.html It was battery

Hi Ian, DSB rig are a lot of fun! I don’t know what you are planning to use for a receiver. Direct conversion receivers work well with DSB transmitters. They make transceivers not simple but easier to

http://www.expandedspectrumsystems.com/prod4.html Ian - There is a 14.200MHz HC49/U uP crystal on the website shown in the link. Rich Kennedy - N4ESS Expanded Spectrum Systems 6645 Founders St. Zephyr

Hi Phil, The MC1350P is an 8 pin DIP IF Amp. I think you are remembering the MC1496 mixer. I like the MC1350P because of the ease of gain control for QSK. It actually dates back to the 70’s maybe even

We often know so little about the folks we work on the air and meet on websites. Some of my local ham friends were truly amazing folks. It is nice when someone remembers a lost friend as you have. Sor

Terry, Sorry to hear about your flooded basement. The local OKC stations are showing a lot of flooding. There is no place for the rain to go anymore and any rain is causing flooding. From my limited T

A couple of days without the threat of thunderstorms has let Oklahoma City dry out a little. The wet WX must have moved North. I don’t have a rain gage but the lakes are full around the city. It has b

It sunny and about 75F in OKC. Still drying out. Severe WX returning next week. I still can’t get to my brother’s house in Moore, OK without a long walk or bike ride. I could probably get there but I

Yesterday, a tornado touched down about a mile east of me in Edmond, OK and moved further east through less populated areas. The neighborhood had no apparent damage though I believe a nearly finished

From: 4sqrp@... [mailto:4sqrp@...] On Behalf Of WA0ITP Sent: Monday, May 20, 2013 6:13 PM To: 4sqrp@... Subject: [4sqrp] Severe Wx Today Hope all of our friends in

Thanks, Wayne. Never enough resources. If you work with tubes you probably already know NJ7P’s site. For those who are not aware, this site is a great source for tube data and substitutions. It has li

My elmer was K5SAM, Henry (SK) up in Edmond, OK. He mostly operated a homebrew DX100 clone, a 300W homebrew 250TH and a 2B. His main antenna was homemade 20M ground plane with four radials. It was lat

I enjoyed Tommy Henderson – WD5AGO’s contribution. Homebrewing at UHF is a different world. I can almost relate (but not really) from my experience recently making a clean, stable heterodyne oscillato

I agree with you, Cliff. It is likely a simple fix as you suggest. Dennis, if you can't find the problem send it to me and I will look at it for you. Don K5UOS Edmond, OK

Dennis, There isn’t much to this circuit. You should be able to check most of the unit with a simple bench meter with resistance and continuity. There are four 100 ohm resistors, a 1k ohm resistor, a