If the 1N4007 sort of did the job, probably a 1 watt or ten watt PIN diode would do a major part of the improvement the 1KW PIN diode does and would be more available. The Microsemi UM2110 was select
are relay Tell us a bit more about the type of amp you're trying to interface and your level of comfort with soldering/de-soldering a couple components inside the rig. I can guide you through this,
and the amplifier. The relay in the amplifier is quite noisy, however when i'm not using the amp, the relay in the rig seems to be quite loud. Since i have the isolation relay at the power supply to
I strongly urge one to use the "keying loop" provided by the Tentec Omni VI Plus system. Although it requires different and additional circuitry within the amp, it allows the switching to take place
filter in front of the Omni VI+. Has anyone encountered or heard of a similar UHF intermod problem with the Omni VI? Jack K1VT" Déjà vu. I ran into the exact issue back in '92 when I purchased my Om
biases weren't enough or the UHF signals were strong enough. Using true HF PIN diodes instead of switching or 1N4007 should also help prevent that mixing. And the external TVI filter has been proven
Trying to get rid of the audio thumps when using QSK on my Omni VI+. I tried the W9AC mod, removing connector #52 from the if/af board, but other than increasing the brightness of the S-meter pilot l
only to find out that I can't use the PTT cable with the rig. As soon as you plug the PTT cable into the radio it goes into transmit. OK, before anyone asks, yes I have checked the wiring! There's st
"My issue is the OMNI VII keyer. To me the weighting adjustments are not sufficient to allow it to produce CW characters that match the ORION II. I'd like to see the CW weighting function be increase
73 de K1ESE John" There's nothing wrong with the concept of ALC between the transceiver and an amp, but more often than not, the real-world implementation is nothing more than a "feel good" exercise
PA to clipping??? If that never happens you are one cool ham." Generally, when I make a mistake, it's during the initial tune-up procedure and not during an operating event. Once I have maximized dr
Saw W4PA's video presentation of the Omni VII this morning. I was surprised to see that the background color of the screen was a very attractive blue color. Perhaps I'm missing it in the manual, but
The relay in the Omni VI+, when used to key the amp, does not provide delay for RF output thus the amp is likely to switch hot. The TX EN is the correct way to delay the RF output from the Omni VI+ w
Is it because the radio has no appeal to participants in this list? Can it be that the radio's major appeal is to computer-bound folks who want to operate remotely? That's certainly the theme of Ten-
sitting on one's desk. That it does work well seems clear. But the emphasis of Ten-Tec and new owners does seem, by and large, to be on the digital features which are of no interest to me--witness t
Or if you don't want even the tiny click of a reed relay (someone has claimed it is not true QSK if you can hear a relay click) you could use an optocoupler. If the relay is fast enough, it is capabl
a pig tail with a much stouter dc connector...30 amp power poles. As a pig-tail, this is probably fine. However, I have measured as much as ~ 0.3 VDC dropped across properly crimped, standard-sized
Solder and stranded wires has another problem. Industry has proven for any time a wire is flexed, a crimp connection lasts much longer than a soldered connection. That's because in the soldered conne
I tapped into the T-line and keyed a transistor which in turn was used to key the 405 Amp's relay. Same here... When I owned an Omni Six, I decided to modify the external amp relay circuit to support
The box switches 52v at 100ma. Will the relay connection on the back panel "Relay (N.O.)" handle that voltage and current? The Omni Six's external keying relay will switch this voltage and current, b