Aug 03, 2014 · Normal ~2 readings per second (> –30 dBm approximately) ~1 readings per second (≤ –30 dBm approximately) High-speed ~23 readings per second (> –30 dBm approximately) ~10 readings per second (≤ –30 dBm approximately)
Also, as pointed out by N7EKU, your body has a loading effect on them, and a 1.6 : 1.0 SWR is very acceptable for a rubber duck. Also, you need to measure return loss using a network analyzer, most SWR meters are terribly inaccurate at VHF and above.
Feb 04, 2006 · This probably should go in the Amps Section but i'm talking bass amp so here it is. I bought a new SWR Workingman's 2004 head (200 watts) a while back. Used it only one time on a SWR 4-10T & 1-15T Cab set up in a livingroom jam. The head cut out after 2 hours at high volume and I thought it blew up.
Clip it off and bend the end over the top of the antenna and replace the little cover each time you re-check the SWR readings ,,,, The idea is to get channels one and forty to have the same SWR reading, somewhere between 1:1 and 2.5:1 ,,,,,, that way all of the other channels will have an SWR reading at or below that level ,,,,,,
On the normal antenna ie the BMW there is a set screw in the base that hold the antenna rod in place. So loosen it and raise (to lengthen) or push in (to shorten) as is needed by the readings on the SWR. Tighten it down and read them again to see how low you can get all the readings.
You need to tune the antenna. On an antenna such as the Firestik II, it has a tunable screw in the end and makes things really easy. Before I bought an antenna, the CB shop told me that on your standard fiberglass antenna, you pop the rubber part off the end and pull out a bit of the wire at a time and trim it off until you get acceptable readings.
M eter Displays forward RF power, reflected RF power and swr. Uppermost scale is for high (H) and low (L) power swr reading. Low power swr scale is for RF power below 5W. High power swr scale iŠ for RF power over 5W. Second and third scales are for RF power mea- surement which are 5W, 20W and 200W full scales.