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No amount of fiddling with bandpass filters will knock out noise. That's not what they are for !! It's not what they do !! They have no noise-filtering circuit elements.
You are essentially attempting to fit a round peg into a square hole.
I'm up in the Discovery Islands about 160km northwest of Vancouver. Right at the top end of the Strait of Georgia.
I haven't been on the radio as much lately either! Garden, house and land projects, visitors, beach, mountains etc etc.......
I've talked to 878 up in Kelowna a few times so we...
There are several different layers in the ionosphere that reflect 11 meter band signals. The most common reflector is the F2 layer, and that is the one that produces the long range (over 2000 miles) skip. F2 is also the layer most affected by the sun and the 11 year sunspot cycle.
The E layer...
Hey 399! Just saw your post now. It was dead all day here other than a little bit of Utah and Montana on 38.... nothing further afield than that....
Truth be told, I haven't been spending much time on the radio lately.....conditions are not great and the garden, homestead chores and...
Totally dead here today. It's been hit and miss the last couple weeks.
Pretty poor conditions for the most part lately, mostly short E-skip and Australia.
It hasn't been fantastic that's for sure! It was much better a couple of months back.
There has been something for at least part of every day though. These days it's mostly short E-skip to the western U.S. states, often with better signals after dark. East Coast and Florida have been in from...
The last 2 I got from Amazon about three years ago. I just looked and see they are now $254 Canadian on there ! :oops: Fleetwood Digital in Surrey has them for $237 Can.
Wish I'd have bought four of them the last time around now !
I feel your pain, I live on an island on the west coast of BC !
It shouldn't be too hard to build a 5/8 groundplane if you have the materials to do it. You would need to figure out the loading coil at the base as that is the critical part. I wouldn't attempt to do it without an antenna...
You would be wrong. I've used many pre-amps, always on older radios that were expanded but suffered from poor sensitivity at the upper and lower edges of the band. They are indeed a valuable tool for situations like that or as Sunbulls said, on any radio with a deaf front end. On several of...
Yes the noise generated by the circuit may be low, but it still amplifies outside noise just as much as signal, so the SNR stays the same.......
As I said above, you may as well just turn up the volume.
That is just about the most terrifying thing I can think of LOL! When I was 16 or so I fell 80 feet out of a tree while stringing up a shortwave radio antenna. I now have terrible vertigo (and a bad back). The highest I ever climb is to the first floor roof of the house to clean the...
Those rx pre-amps don't really help much. Yes, they boost received signal strength, but at the same time they boost received noise so the signal to noise ratio stays the same.
You can achieve the same effect much more easily but simply turning up the volume........
I was involved in REACT up here in Canada in the 80's and 90's. The last year I monitored 9 was 1997. Our local REACT chapter was down to 2 people by that point and dissolved. Last real emergency I remember hearing would have been a couple years before that....
By the early 2000's AM CB was...
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