Re: Topband: AA-55Zoom Review

2017-12-13 Thread Jeff Blaine
Question regarding the OSL cal function on the unit. Let's say you do an OSL cal with a length of coax attached just as you would with a generic VNA.  For how long is that specific OSL CAL applied? I mean, does it persist until it's deleted, or until you change frequency away from the range c

Re: Topband: AA-55Zoom Review

2017-12-13 Thread Matthew King - AK4MK
Jeff - on my AA600, an OSL calibration is good until you change the parameters of the calibration, i.e. moving away from the frequency/range selected during the OSL calibration process. I'm just assuming the others are the same. 73 Matt AK4MK On Wed, Dec 13, 2017 at 10:49 AM, Jeff Blaine wrote

Re: Topband: [Glowbugs] Former US Coast Guard transmitting site FS

2017-12-13 Thread Radio KH6O
Roy -- That Wisconsin site was for Differential GPS transmissions. Here's a description of that system: "DGPS uses a network of fixed ground-based reference stations to broadcast the difference between the positions indicated by the GPS satellite systems and the known fixed positions. These statio