If it still has the ovenized reference oscillator it might be an indication of it starting to go bad. I was told by TT service that 30M only instability is one symptom of that problem. Apparently 30M
Yes the 4 pin PS connectors are all the same. However not all Ten Tec power supplies are truly compatible with all radios. The later Omni V/VI series for example have higher TX current requirements s
Yes the NB does work. It is not however a stellar performer and will do only an OK job with very uniform noise pulses. It is not intended for random or hash types of noise. So for typical powerline h
The 6.3 MHz IF 2.4 kHz filter in the CII's here have 48074 on them. Ditto for the original Corsair. Duane N9DG __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo!
The 6.3 MHz IF 2.4 kHz filter in the CII's here have 48074 on them. Ditto for the original Corsair. Duane N9DG __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new re
Does anyone know what the characteristic input and output impedances of the 220 9MHz filter are? Or the 6.3 MHz filters? Duane N9DG __________________________________ Do you Yahoo!? Make Yahoo! your
The push/pull simply puts the Radio into TX. The ALC works like most other older Ten Tec radios. Full clockwise is max power with the drive control advanced to make the LED just flicker on voice peak
Or I suppose you could use Ten Tec's new "TAPR Vector Network Analyzer" to make short work of characterizing that 221 filter... Duane N9DG __________________________________ Do you Yahoo!? Yahoo! Mai
The 430 was also the first rig I encountered that taught me a whole lot about noisy synthesizers too. It traded *established* performance for glitzy trinkets (the TS-820/830 ran circles around it so
Comments (many - yet again! ;-)) in-line below: <snip> It would actually be more of a ?shifting? of the available control CPU's horsepower to different tasks. Truth of the matter is we should be able
Judging by the booth attendance observations and comments posted here for the Orlando hamfest I would say 95% is way too high, I'll bet it's closer to only 50%, with many of them wanting the option f
My assumption being that a significant part of the DSP's horsepower is being used to create the sweep display. If that is indeed true then there would be more cycles leftover that could then be used
If you want to see the effects of this AGC speed limitation download Ten Tec's control program and run it on a decently fast PC of 2GHz or so. Set the band to say 40M at night and then bring up the s
Yes I'm sure that's true. If need be the filtering could be rather broad in the interest of maintaining high speed sweeping. I wouldn't say demodulating as much as simply taking the 16 bit A to D val
I suppose you can use the 2.5 kHz steps as a design point. Have the external sound card program take 2.5 kHZ wide "snap shots" of the 12 KHz IF signal at each 2.5 kHz step. Then just tune the first L
What I think you are seeing is the dynamic range limitation of 16 bit sampling. The fact that the IMD DR3 dynamic range is within a few dB of the theoretical limit for 16 bits I find remarkable. You
<snip> My second pipe dream would be That "plug in" architecture would be called the PC PCI bus that's already here. In fact there are hundreds of millions of devices already using it, just not many
Martin, Excellent points, some thoughts and comments in-line below. Duane N9DG There will have to be a strategic decision made on the radio manufacturers part. They can decide to either focus on hard
I didn't want to confuse anybody with the subtitles of the PCI specification so I stuck with using the generic PCI terminology. You might be technically correct but in this case you are so WRONG ;) -
Although I think such a roofing would help some the Orion's sub RX, and the Pegasus/Jupiter too. I think that you'll find that these "ghost" signals are at +/-12 or 14 kHz away (depending on radio mo