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
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
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
282 285 I'm not aware of the 2.4 kHz filter ever being offered as an option, so as far as I know it does not have any "28x" designation. Yupp you're right. It's the only 9MHz filter in a Corsair. My
The 580 Delta is almost in this same camp though a dual conversion design. I found its main limitation (other than poor AGC) is that the audio chain is rather noisy. Ten Tec radios of this vintage I
Actually there are two sources of hiss, one is indeed the RF/IF stages, and the other is clearly the audio chain. As an experiment turn the RF gain all the way down (with 50-ohm load or no antenna) a
Well I did some more experiments tonight and made a few relative measurements. One thing that I was able to determine is that the PBT board in the CII provides about 10-12dB gain. I also found that t
That's an excellent price. The Pegasus is one of the most under recognized radios out there. While it is not a top end performing contesting or DX'ing mnachine it is still a very good bang for the bu
Actually the Pegasus shares much more in common with the more traditional radios out there than the ideal concept of "SDR". Yes it has updateable firmware but it is a "tradition radio" first and SDR
Not really. The review of the SDR-1000 was done with the radio incorrectly configured. This miss configuration was due to the proper instructions for its setup not being made available to the ARRL. F
Perhaps the best way to understand the RISC-like nature of the Pegasus command set is to look at the Programmers Reference Guide for the Pegasus and also the Programmers Reference Guide for the Jupit
It's relevant for sizing the RF components of that new direct DSP to RF D to A legal limit Class E amplifier based radio that Ten Tec will be building...:). Duane N9DG ______________________________
I aggree with Bob. The DEMI transverters are about the best "bang for the buck" transverters out there. And I'd keep the Omni D to use as the IF radio for driving the transverter as well. I suspect t