GaryI am interested in the filter cover, speaker bracket, synth board and possibly fan. Please let me know $. If the reserve is enough on the synth board, I will take that for sure. They are to go wi
The dynamic range of the A/D converter is not the dynamic range that can be recovered. The bandwidth (sample rate) is also important. Increased sample rate for a given bandwidth increases the signal
No red seen here :-) The number of bits specification for an A/D converter usually tells us the dynamic range of conversion. It rarely tells us the signal handling capability of the converter. That's
Mom drove me over to W4WKP's(SK) house and I traded paper route and lifeguard money for used gear. A Knight T-60 and bright blue NC140. It was also my first time seeing the inside of a real mansion.
MikeDid you reply to all those white QSL? JoeYa done good! How many of y'all tried to see/saw an ECHO satellite pass? https://en.wikipedia.org/wiki/Project_Echo Any hear sputnik? I was only four but
I am sorry, I forgot to trim. _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
I have an early 565. Early to make and early to break? Neither the filters nor the synth board have the topside shields. If anyone wants to have a stab at it, $500 shipped in USA lower 48. Transmit b
Isn't the harmonic problem much simpler now that the SMPS frequencies are dithered? Also, aren't the much higher SMPS frequencies in use today easier to deal with? Is there an incidental benefit that
I am not seeing these dumped IC7300's. Tell me where to look please. I see them at $1400 new. I'm considering selling off one or two boat anchors and getting a fancy new mobile rig. Fancy new being
I took a look at QTH.com Least expensive is $1285. One 3rd hand for $1350! New from DXengineering $1399 including shipping. Warranty does not transfer. I don't know about other folks, but anything mo
I had the opportunity to tune around with an Icom IC7300 during yesterday's CW contest. It's an impressive radio for $1400. If I did not already own an Eagle, I'd seriously consider the 7300. I did n
I think I know the problem. I strongly suspect that upon closer examination, rick will find that his 515, in addition to having an inverted sideband on 80 is also tuning backwards! Someone has peaked
Sorry Joe We'll have to wait for Rick to get back to his bench to know if it's a good guess. Here's how I arrived at the guess. 80 bad 40 OK suggests that the LSB line is not 'stuck'. Toggling it to
Upon close inspection I see the 5.5.5 is direct coupled on 20 while the 12.5-13 is filtered. I still won't be surprised if it is making it straight through. I need better glasses :-) 73, -Bob ah7i/w4
Gary If you do a search for "oversampling and dynamic range" you'll get a lot of info. This explains it pretty well. http://www.atmel.com/images/doc8003.pdf IIRC I mentioned a link to an analog devic
It still does not explain how you can digitize a signal with amplitude that is 140 dB signal above one LSB using a 16 bit A to D. -- This is not how it works. The gain is NOT adjusted to make the wea
Dr Gary It might be helpful to consider extremes. One bit sampling. The only information collected is whether the current sample is greater than or less than the preceding sample. This is one bit A/D
Dr Rick I am only saying that the 7300 has a band pass filter covering the 40m band. It is a bit wider(6500-8000kHz) than the band. If it's too wide for the conditions, a pre-selector is one solution
I can not use the MFJ on 160 without a trap on the main antenna because of strong local stations causing all manner of intermod. The solution will be two antennas for RX phasing. Two of the others ca