I'm looking for inexpensive HF dummy loads for a phased array project. They only need to handle 10 Watts or so, and preferably would have PL259 connectors on them (as opposed to SO239). I have a few
An excellent source of quality dummy loads is http://ridgeequipment.com/store/page1.html Check out the 75W ones for $9.00. I have checked these out on my HP VNA and they are excellent. Only drawback
excellent.. I don't need "excellent" attenuators, just ones that are reasonably stable and can absorb a few watts of power. They are hooking up to something with SO239s, but adapters aren't out of th
Hi, Jim; If your are working HF, a few 2 watt carbon comp resistors in parallel will work Put them in a can if shielding is required, but derate the dissipation somewhat and consider heat sinking the
I had contemplated such a thing, but I was looking for something that I didn't have to build. There's a difference between 30 seconds to screw a load onto a connector and 20 minutes of getting out th
Another option is to use the 30W, TO-220 style thick film resistors from Caddock. Mouser sells them. They are available for 50 ohms, are 1% precision and non-inductive... and are also very good. If y
How the memory slips! We used to use light bulbs as dummy loads. It requires some experimenting and measuring to find bulbs that present a suitably matched load for a given power, but they work fine
+++++++++++++++++++++++++++++++++++++++++++++ Hi Red Yeah, makes a good dummy, but also makes a good antenna. I was once playing with a rig into a lightbulb and a guy about 100 miles away came back
I better quit this before I draw flames. 73 de Red _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http
Sounds like me in the early days ( I haven't been a ham very long). My new rig was just being turned on and the paddles were being connected. I had turned the power down all the way (2 watts being re
Just think about the power difference to 100 watts that normally gets used. 2 watts is only 17 db down. If a signal is around 20 over 9 with 100 watts it will still be a little over S9 with 2 watts.
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Thu, 17 Aug 2006 13:57:03 -0400
Just few years back (wasn't all that long ago) when we had the world wide openings on 6-meters I head a station call CQ several times but didn't get an answer. His signal wasn't all that strong but i