Greg T
WDX-945 (Jazz Singer) Upper Peninsula of Michigan
Static build-up, lightning strikes, and angle of radiation. Those are all reason enough. But ears is another major factor.
-
You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
Base A99 Height question
- Thread starter Joe 610
- Start date
-
- Tags
- a99 antenna height
I was surprised to see the Antenna (SWR) Warning Light on my 655 did not illuminate until the SWR was at 3.0. Cause of defect was a bad "crimped" PL259 on a 15" jumper. Apparently, the manufacturer thinks anything less than 3.0 is A-OK.
Can you imagine how many returns they'd get if they set it at 1.5? A 3.0 isn't going to hurt anything.
That's my point. I (and many others) have always focused on, stay below 2.0 and probably for no reason. I have helped several guys "trim" mobile antennas trying to get that "magic" 1.5:1 SWR.
I'm not really certain what you are trying to say. At least the the warning served its intended purpose.
Ever since I was fifteen years old, I thought a SWR above 2.0 would ruin a radio. Here I am at 74 and realizing (and being educated) I had nothing to worry about when the SWR was 2 to 3.
Just wanted to thank everyone for the positive feedback. See what I get done this weekend now that it’s supposed to be in the mid 90’s
A "ratio" generally shows how much greater than or less than one is the variable quantity. "2" or "3" by itself is not a ratio; an "SWR" of "2" is meaningless. Compare the "2" or the "3" to one, like 2:1 or 3:1.
Do you work in an industry (or know of an industry or situation) that expresses swr as a ratio like "3:2" or something? In CB and ham radio it is always expressed as "x.x:1" so the experienced operators here know right away that it is in fact a ratio. Seriously though, is the "1" in the ratio not always a given when expressing swr?
We did radio installs for county vehicles and had to check SWR and note it on the maintenance log.
We wrote it as 1.20:1 or 1.15:1 on the paperwork.
Used a Telewave to read forward then reflected and the chart on the back of the meter to get SWR.
Spoken word, one point five to one but it's all the same point really.
It's like how many lbs am I hitting you with?
73
Jeff
We wrote it as 1.20:1 or 1.15:1 on the paperwork.
Used a Telewave to read forward then reflected and the chart on the back of the meter to get SWR.
Spoken word, one point five to one but it's all the same point really.
It's like how many lbs am I hitting you with?
73
Jeff
I would hope you wrote it out in its entirety on a formal maintenance log. There is always a chance you could have to defend your log entries in court.
If you record the ":1" in your notebook while tuning your personal yagi, you are ocd. There is no problem with that, people just like to complain about things, and that entertains others.
Yes I agree. People complaining about something that is actually factually correct can be rather entertaining.
LOL Just yanking your chain.
Greg T
WDX-945 (Jazz Singer) Upper Peninsula of Michigan
Yes I agree. People complaining about something that is actually factually correct can be rather entertaining.
I've always enjoyed asking people how many SWR's they have. It's become a thing with me on FB.
The OP really isn't saying what his goal for his station, primarily local or DX contacts or both?
Local ground wave? Then that antenna needs to get up in the air at least 18ft at a minimum. 36ft would be better if possible.
DX can get away with a lower height because usually you're only going to talk to what you hear anyway.
What about the elevated ground plane kit or ground radials? Also many users of this antenna say you have to choke off the coax line before the feedpoint to keep the coax from radiating?
Just thought I would mention those things for others too point out on this thread who use this antenna.
Local ground wave? Then that antenna needs to get up in the air at least 18ft at a minimum. 36ft would be better if possible.
DX can get away with a lower height because usually you're only going to talk to what you hear anyway.
What about the elevated ground plane kit or ground radials? Also many users of this antenna say you have to choke off the coax line before the feedpoint to keep the coax from radiating?
Just thought I would mention those things for others too point out on this thread who use this antenna.
Well to be honest with you I’m not sure. I’m new to the base station stuff and have opened a door into a whole different world. My cb experience has always been mobile either in a personal vehicle or tractor trailer. The radio I set up as my base is a Stryker 655 ( now I wish it was the 955) that was hooked to a Stryker SR-A10 antenna. Worked awesome after a little tuning and you were set.
When I take the antenna down this weekend I’m adding a ground plane kit. As for the choking, to be honest, I don’t know what that is.