开云体育

Remember, too,that copper and alum are not very close on the Galvnic chart so use the proper interfacing "grease". Look up on line about galvinc (spelling?) corrosion. Copper is more expensive

So, Chris, I gather, the newer units can work without a ST as well? (with the mods, of course). Newer is better for me :) -- - Regards, Karl Shoemaker To contact me, please visit SRG's web site at

At one time, they were made of plastic. I've seen several of the plastic ones that came installed in manufactured buildings. Jim W7RY

Where we haven't had room to install a cable port entry we have used a waterproof Cable Gland. See the below link for photo of what they look like. They can be mounted on a small square piece of

Hello Matt, thanks for that very informative post. I help maintain a multi site UHF repeater network which is mostly linked via RF but some sites are AllStar. The hardware and Olivia service you

On my old radio key ring I have a C2160. I don't recall what it fits. Hello Group, I have a "2131" key. Could not find it on the list. As I recall, it was with some hamfest treasures forty years ago.

I saw the note from Dan about port entry techniques in another thread. Do I recall correctly these used to be made from copper? R56 doesn't seem to suggest aluminum for this purpose, but it's been a

Hi Everyone! I am doing a Black Friday through Cyber Monday sale of AllStar Link / EchoLink Repeaters, Simplex Nodes, and APRS I-GATES at https://w0sky.com . The sale ranges up to 30% off and includes

The 2131 is a Chicago Lock key code. Motorola is not the only user of Chicago Locks. So this could be for another user of Chicago Lock. 73 Glenn WB4UIV

I have 2 unpopulated PC boards from Sierra Radio used to interface with a MTR2000.? The connectors are not soldered to the board yet. I don't have a schematic or parts list available for the PC

_*These are 100% totally overboard for a home.*_ Use a 2" pvc conduit sleeve (or large enough to pass your current and future needs) through the wall of you home. 73, Jim W7RY

In my opinion... *NO!* That's what calking is for. These things have horrible return loss figures. 73, Jim W7RY -- Thanks and 73, Jim W7RY

sp? Southern Pacific? That's what comes to mind to this old RR tech. Did you mean 'special'? 73, Nate, N0NB -- "The optimist proclaims that we live in the best of all possible worlds. The pessimist

A lot of tower companies are banning cabinets altogether to keep people from "sneaking" in more radios.? Some radios actually depended on the cabinet to limit oscillator leakage.? A certain tower

Hello Lewis, Do not use those "connectors" on anything above HF if at all. They are a waste of good money! We purchased an assortment of the various lengths. Ran them through the RF lab and found them

When in the cell industry, the cell sites used the large hole bulkhead entry points for the coax and GPS cables. One of the ports at one cell site did not have the boot on it and I had the <redacted>

Well, I feel silly. I only looked at the pic of the eBay listing and ASSumed those were UHF bulkheads. After I sent the email I went to close the eBay browser window and saw they say they are type N,

You didn't say what the intended use was (HF rig, VHF/UHF rig, repeater, ???), but generally speaking, you do NOT want to use any kind of extended-length UHF bulkhead feedthrough like that. The

Don't ever use that garbage.? Buy proper entry port, cushions, and boots.? They are readily available from Tessco.? Below is a 2-port 4" entry port I used at my repeater site.? Use a masonry hole

Lewis, You can cut a hole in the concrete (I assume you are talking about the foundation)? then install ABS pipe, which is rugged. If the wife objects on the color, and you want to use the white PVC