Lightning - NEC - Grounding After going to "school" to receive training on the "National Electrical Code" and "Lightning and Protective Grounding", I came home and immediately did the following to my
My experience with commercial VHF, UHF, and 800 MHZ - 900 MHz repeater antennas at some 35 locations around the US has been that "antennas with a DC ground potential" seem to avoid static build up an
Having used the Omni-D, Paragon and still operating my original Corsair II and Omni VI+ with several Linears and model 253 Automatic Antenna Coupler; the only thing I find different (lacking) to oper
How about a new $2000 - $3000 box built around upgraded Corsair II technology? 100 W, full QSK, Dual PTO, Dual Receive, IF shift, Narrow Filters, etc. Keep the digital circuits to minimum except for
Rick, I certainly understand the advantages of new technology radios in contesting. But for those who are just looking for a radio to work DX, a Corsair II with filters and the matching VFO to provid
AMEN - You can't work 'em if you can't hear 'em. And it matters not the cost of the rig, the number of buttons or knobs, fancy panels, nor digital circuits. If you can't hear the weak DX through the
Dan, I think you are right about fixing Corsair IIs. It might be the last of the radios an average HAM could repair on his own and not have to send back to the factory. I know that's my situation....
Orion II, Red Dot - Black Dot, Radios you can work on, Radios with Computers inside, Service, 30 day returns, and more; in recent days more exchanges here than I've seen in months. One thing is clear
Thanks Tommy. I didn't mention it in the last post but I do have an OMNI VI+ too. Great radio for DXing. If there's anything lacking it's the dual receive in one box. And unless you've used the "old"
Jim, Please don't be part of 'the silent majority'.... I think much of what happens at Ten-Tec is "the squeaky wheel gets the grease". There's a lot of vocal people in the contesting crowd and a good
Tommy, Dual receive is accomplished in the Corsair II and remote VFO by pushing in on the RAB button on the VFO. There are three buttons to select the VFO options "Receive A or B", "Transmit A or B",
it, you wouldn't wanna visit a split pileup without it... That's the way I feel about a radio for DXing.... I want to be able to get into a split pileup with dual receive with a radio I can count on
Don't call me an expert, but I have been running Titan 425 QSK for 15 years. I think you might be on the right track about RF timing and that's the first area I'd look. Anything in the exciter's T/R
Your PA is drawing too much current for whatever reason. Use a TT 961 PS to protect the PA or put a similar "fast cycle" 22 Amp breaker in line. I've been running either an Omni D, Paragon II, Corsai
Larry, Thanks for the positive response to my suggestion to use a TT 961 power supply (or the AirPAX circuit breakers referenced on their own thread). I've also seen VSWR diode failure cause the TT 9
Great explanation Bob, One of the most common problems in audio and DC control circuits.... confusing "shield" and "ground" then grounding the shield at both ends causing hum or RF in the audio. Best
When the Soviets were running OTHR in the amateur bands, (which used the HF echo to "see" targets) I used QSK CW dits to synchronize with their OTHR pulse timing and jam their "B" scopes. As a former
Not very likely the Soviet Radar operators were confused.... most if not all were pretty good CW operators and they certainly understood HI HI 73 DSW DE AB9M when they went QRT with their WOODPECKER
Hi Tom, I'm not an "Old Crow".... or at least I don't think so. My ECM - ECCM operator status was with US ARMY Nike Hercules RADAR operations. I also was a RADAR Tracking Supervisor and HiPAR (High P
Hi Bob, Most of the classified RADAR technology of the era has become obsolete and downgraded. For the most part all the old analog designs are pretty much generally available to the public or can be