Jim, Check out the Tyco RTD 14012. Available in a 24v version as well. Has nice short contacts keeping the L low. Very tough. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie I've used dozens of
Steve, My application is really coarse. There was a multi-rig switching unit featured in QST/QEX in the last year which had the relays mounted there. The same relay (under the shrack name) is used on
Is there a general consensus on preference between the performance of the Comtek and DX Engineering units? 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie _______________________________________
Thanks Tim, I thought they would be similar. Any delta in reliability, durability or other kinds of creature comforts? 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie Hello Jeff: I have tested a
Thanks Tim, Last question. There is a barbed wire fence which runs for many hundred feet in both directions adjacent the location of the 40m and 80m square sites. I assume given the length of the bar
Thanks Mark, I also like that omni mode. It should be easy to tune up because I can measure the current/phase with the VNA using the W8WWV method. Big change for me - my first outdoor antenna since m
I want to thank everyone for their kind inputs. In the final install, the stuff will be buried but I'm just trying to throw up something to bridge me till this next summer when I can get the permanen
Question on the optimal routing of strap to realize a single point ground. My shack antenna entrance panel and the mains AC power meter box are along one wall separated by about 20. There is a ground
OK, some practical considerations then. If I bond to the power meter on the exterior, they have what looks like a plastic conduit running down into the ground below grade. So where do I hook on? Dril
John, Thanks for your comments on the ground. For the 160, best you kick off a separate thread for that. Comingling subjects makes it very hard for anyone to follow the thread. 73/jeff/ac0c www.ac0c.
Spark gap it is, then... Thanks for all the suggestions. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie On 2/8/13 10:36 AM, Jim Brown wrote: On 2/8/2013 5:52 AM, K1TTT wrote: What is the best w
Static bleed is not an issue here, sort of. The antenna is grounded through the antenna switch which has a 50 ohm load on the line when it's not selected (unless that's been zapped). And when the lin
dualband 80/160 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie On 02/09/2013 07:34 PM, Jeff Blaine wrote: Static bleed is not an issue here, sort of. The antenna is grounded through the antenna
This product line was sold by polygon to another company. I talked to polygon and the new company (I forget the name) and there seemed to be no one at the new company who knew what the fate of the pr
The noise I hear from it when sniffing is from the USB cable, not from the GH unit specifically. I put ferrites on both ends of the USB just as a precaution anyway. The presence of a uP near the ante
Wayne, I have done a ton of modeling and think the direction you are heading (with the multi-monoband on a single boom sort of Force-12 design) is the best way to go. Multiple monobanders on a single
Tom, I have built quite a few wire beams. And tuned them in a variety of ways; some pretty complex and some pretty simple. If you want to avoid doing any modeling, I would suggest you do it this way.
I have the Ameritron RCS-12 that I use in conjunction with a couple of switches. This is an 8-position unit and its very flexible with respect to configuration. But I need more switch selection posit
160-6 with monoband types on most bands, and in some cases multiple antennas per band (eg. vert + dipole). 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie [TowerTalk] cascading RCS-12 Do you ope
John, What box are you using exactly? Thanks. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie I use a six position relay box for 160-10 and then a separate relay box on the output for each band