Jerry, here are some measurements by G3SJX (RSGB's test editor). He has been doing these tests consistently over an even longer period than ARRL in RSGB's RadCom magazine. Transceiver 10 kHz RMN 5 kH
More data from: http://www.sherweng.com/table.html Sherwood has been making these measurements consistently over many years: Transceiver 10 kHz LO Noise IMD 20 kHz IMD 2 kHz Orion -130 96 93 Corsair
RE LO noise measurements - Note that the Sherwood measurements are not very consistent for the spacing used to measure the LO phase noise: Orion (II) 10kHz Corsair 4kHz Omni VI+ 20kHz It's really too
N9DG: measurements are not very consistent for the spacing used to measure the LO phase noise: Orion (II) 10kHz Corsair 4kHz Omni VI+ 20kHz Sharp eyes Duane! I agree but Corsair was actually measured
I will stick by my wish to see it standardized at something under 5kHz, much for the same reason as wide spaced IMD performance in the IMD dimension. I highly doubt that is the case. I suspect that t
N9DG: I highly doubt that is the case. I suspect that the Corsair holds up better as you get closer. From what I can tell the first radio that can truly match (I think may even exceed) a non synthes
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Fri, 02 Jun 2006 23:10:23 -0500
The 2.5 KHz from carrier out are the frequencies of phase noise that affect the received signal directly. Further out affects unwanted signals being phase modulated to spread them into the pass band.