Yep, the "ungrounded shield" that they are talking about is a classic pin 1 problem! Good to see that great minds are starting to run in the same direction! Jim Brown K9YC
I suspect that the problems here may be related to the difference between balanced and unbalanced audio wiring. Virtually all ham gear uses UN-balanced audio -- as I understand it (I'm not flush enou
I don't "claim" anything -- I thought I had heard that the Orion has a balanced input. Perhaps I heard wrong (or remembered wrong). I offered my professional advice (I work in pro audio with balanced
Based on the correct info from those who have the schematic for the radio, it seems clear that the Orion has an UNbalanced input. In other words, I was mistaken about that. If you want to use a balan
Yes, and make sure that all input and output shields, including the shields of audio wirng and control wiring are going directly to the CHASSIS, not to chassis via the circuit board (so-called "audio
The few Ten Tec schematics I've looked at (the older products before they "dumbed down" the manuals by leaving out lots of interconnection details) show reverse voltage protection in the form of diod
I suspect it is because that is the condition for which research has been documented. NTIA identified skywave propagation as an issue and said that a serious study of it was needed during the next ph
This is yet another example of what we in the pro audio world call "the pin 1 problem." That is, to be effective, the shield of a cable must be connected DIRECTLY to the shielding enclosure (chassis)
Not ground, but signal reference. BIG difference. Sit out by your favorite airport someday and tell me when you see a 747 taking off trailing a ground wire. More to the point, audio systems are prett
If your needs are that simple, why not write it yourself? I'd be surprised if Ten Tec doesn't (or won't) provide sufficient documentation for you to do that.. You might also look at Ham Radio Deluxe,
Aw, cummon guys, a connector is a connector is a connector. I live in the pro audio world and own a bunch of pro mics so I make adapters so I can plug them into my ham rigs. The more important issue
Yes, they have announced a high-end model (not yet shipping), and have introduced a lower cost, no frills model (Z-100) as well. I have an AT-11MP that I like a lot, and recently bought one of the hi
Actually, lightning is just getting started spectrally at 100 kHz. According to IEEE studies, lightning energy is CENTERED around a broad peak roughly in the middle of the AM broacast band. That mean
I am the lucky (?) owner of a used 444 that the previous owner used with an Omni C. Yes, I know the output devices are long unavailable, that it could be unstable, and that Ten Tec wishes they had ne
I've used DXView and DX Keeper (the logger) for nearly a year, and like them. My favorite rig control software is Ham Radio Deluxe, also freeware. It comes with excellent free PSK31 software, and int
When read by an RF systems engineer, yes, it is devastating. When read by a non-technically educated person, it is not. The problem is that no one involved in the decision-making process has a clue a
It certainly is. In the last six months, I sent my Omni A with VFO and my Omni V for repair. Each took a month, each came back to me with problems out of the box, and each had to be returned for corr