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70cm

Spring / Summer 2013 Update

Haven't really updated the site in a while, been busy and have not had much of a chance to do anything more than some 2M/70cm FM while driving to work. It was a pretty cold and snowy Winter, however mostly uneventful. The repeater project is going ok. Still testing some stuff out, and quickly realizing that height is king. Where the antenna sits now appears to be in a bit of a valley. Unfortunately it is not on a tower, or other high perch. Coverage is a meager 2 miles, maybe. BUT with a clear shot through the valley, I can hear it about 20 miles away on my way to work as I crest a hill.

70cm UHF Repeater Build Up, Update 3

So, still working 12hr/day storm detail, although we should be winding down soon, I was able to get a couple hours to cobble together the basic setup for the 440 repeater. I made up the coax cables to connect with the duplexer. The repeater is...

70cm UHF Repeater Build Up, Update 2

 
Well..... I have not had time to even look at the parts for the repeater in almost a week. The CQ WW DX contest was last weekend, and Monday the East Coast was hit with Hurricane Sandy. Being that I work for the electric utility company we have been busy with 12hr shifts since Monday, and there is no end in sight. I also have no power at home, so it is dark and chilly at night

Repeater frequency coordination process.

Just  a quick update on the frequency coordination process for a 70cm repeater.   Wow... Who knew it would be so much work to pick a pair of frequencies for use for an amateur radio repeater. You would think with 120 frequency pairs in the 70cm band plan that....

70cm UHF Repeater Build Up, Update 1

70cm UHF Repeater Build Up, Update 1. Have been looking into what radios and what controller to use for my 440MHz repeater.

Search for a better VHF/UHF Dual band Mobile Antenna

 

Since transferring within my company to a different office theTM-D710 in my car is getting much more use during my daily commute to and from work. For the most part I can get into the local repeater, but at the far end of my communte I am not holding the repeater as well as I should. I guess it is time to look for ways to improve, one way is a better antenna.

70cm UHF Repeater Build Up

So..... I have this crazy, or maybe not so crazy idea to attempt to build a 70cm (440Mhz) , band repeater for amateur use. Why you ask, Keep reading to find out.

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