Kugellager

Here is my museum: Hammarlund SP-600 JX-37, Rycom R1307A/GR, Setchell Carlson BC-1206. The Rycom and Setchell Carlson are LW receivers where the Rycom goes from 10kHz to about 900 kHz. The SC is for air beacons/NDB. The Hammarlund is my baby and works very well. It is my main MW DX rig and I have received DX from all over N America and Cuba.

John
];’)

Joined a couple of days ago to learn more about GMRS and the radio hobby in general. Got my GMRS license about a year ago.
 
John
];')

I get that myself...which is why I can get that repeater I mentioned over 50 miles away with my base station @25W. It's located at almost 7100 feet and I am at just under 5100 feet with no obstructions in-between - classic LOS UHF radio wave propagation example.
 
Another less understandable (to me) question about of radio propagation is If mpoole can't get 1/4 with only a 40 ft ridge running interference with his 50 watt rig; how come I can get nearly a mile with two HT (HT to HT @ 2w) with a 60 ft+ ridge in  between? See elevation profile below. Situation is from my house in a suburban neighborhood with trees etc. to a park on the other side of the ridge. Signal reception to park is decent to excellent. House is at 5473 ft and reception is at 5506 ft on other side of ridge in park.
 
John
];')

I just realized I never posted the final configuration of my base station antenna.
 
I ended up building a tilt-over mast with a simple 1/4-wave ground plain up at 27ft AGL fed with about 55ft of DRF-400 coax running to the radio. I have tested the base to HT range with my Midland GXT 1050's and can get at least 5 miles to the HT if I am not in a low spot. I have also been able to hit a repeater over 50 miles away that was LOS. I also am able to hit my local repeaters in my local Front Range GMRS group.
 
So basically I did my research online, took excellent advice from this group, did my calculations and that, with a little bit of luck, managed to exceeded my original requirements.
 
EDIT: Added a photo I neglected to the other day.
 
John
];')

I just realized I never posted the final configuration of my base station antenna.
 
I ended up building a tilt-over mast with a simple 1/4-wave ground plain up at 27ft AGL fed with about 55ft of DRF-400 coax running to the radio. I have tested the base to HT range with my Midland GXT 1050's and can get at least 5 miles to the HT if I am not in a low spot. I have also been able to hit a repeater over 50 miles away that was LOS. I also am able to hit my local repeaters in my local Front Range GMRS group.
 
So basically I did my research online, took excellent advice from this group, did my calculations and that, with a little bit of luck, managed to exceeded my original requirements.
 
EDIT: Added a photo I neglected to the other day.
 
John
];')

I just realized I never posted the final configuration of my base station antenna.
 
I ended up building a tilt-over mast with a simple 1/4-wave ground plain up at 27ft AGL fed with about 55ft of DRF-400 coax running to the radio. I have tested the base to HT range with my Midland GXT 1050's and can get at least 5 miles to the HT if I am not in a low spot. I have also been able to hit a repeater over 50 miles away that was LOS. I also am able to hit my local repeaters in my local Front Range GMRS group.
 
So basically I did my research online, took excellent advice from this group, did my calculations and that, with a little bit of luck, managed to exceeded my original requirements.
 
EDIT: Added a photo I neglected to the other day.
 
John
];')

I just realized I never posted the final configuration of my base station antenna.
 
I ended up building a tilt-over mast with a simple 1/4-wave ground plain up at 27ft AGL fed with about 55ft of DRF-400 coax running to the radio. I have tested the base to HT range with my Midland GXT 1050's and can get at least 5 miles to the HT if I am not in a low spot. I have also been able to hit a repeater over 50 miles away that was LOS. I also am able to hit my local repeaters in my local Front Range GMRS group.
 
So basically I did my research online, took excellent advice from this group, did my calculations and that, with a little bit of luck, managed to exceeded my original requirements.
 
EDIT: Added a photo I neglected to the other day.
 
John
];')

I know this is an old thread but I found this calculator really useful for estimating cable losses in various type of coax.
 
https://www.qsl.net/co8tw/Coax_Calculator.htm
 
John
];’)

I know this is an old thread but I found this calculator really useful for estimating cable losses in various type of coax.
 
https://www.qsl.net/co8tw/Coax_Calculator.htm
 
John
];’)