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Terry, Most are rated at 50 watts. It would be wise to turn up the repeater and do some drive testing at the 25 watt level to find out how balanced the system is. A good start is the repeater transmit

Hi Paul, The TDN nuber is a Motorola part number. That duplexer is common in the Radius line of low tier repeaters. It is a 6 cavity notch only unit. We have a lot of them in service and they work

Gentlemen: I am puting up a repeater on the local water tower (Flatlands of Kansas) at about 125'. I am using a Vertex repeater with a Rlc1-Plus controller. The repeater runs at about 25 watts and I

I was able to acquire a quantity of 'sealed' lead acid batteries that were new when they went into storage (read that as ouside on a friends deck) for 4-5 years. these batteries, although

Oh really??? then why do most hams blanche when ya mention a change or trying something new like say PL ? There is an experimental section set up in ham bands but it does not include repeater inputs

Lou, Joe is correct that the Mitrek squelch leaves much to be desired. I have about five of them in repeater service. The stock factory decoder does PL reverse burst detection to eliminate the squelch

Hi Charlie, In all probability, those duplexers will not function satisfactorily with 600 KHz. channel spacing as used on 2 meter repeaters. I seem to recall that they were designed for a minimum

A'Men Paul you hit the nail on the head...I agree totally. Regards Dale

My experience with a Mitrek is that it will normally close in about 100 ms. This is normal for most receivers. A weak signal on a Micor will be longer than that, approaching 200 ms. I am having some

That is how Motorola designed the Mitrek. When they designed the wonderful two stage squelch in the Micor, there were relatively few systems using CTCSS, so CSQ operation was considered important. By

Paul Bennett wrote: I'm sorry, I thought it was generally understood that I was talking about Part 97 FCC rules, not specific repeater owner rules. I suspect what the FCC upheld was not the rule

Charles, The DB4056 duplexer will not work if you are planning a standard 600 kHz split. They are designed to be used in applications with a minimum of 2 MHz separation. For specifications go to:

Well, I am having a problem on a machine i am running. Machine specs. Motorola Mitrek, converted to full duplex, NHRC-4 controller, wacom cans. problem: when no pl is used on the repeater, after a

Hello again everyone, I am going to repost this because I didn't get any replies back. I have acquired three RCA Super-Controlfone Repeaters. All three have DB4056 duplexors in them. What I am

I would agree with much of what Paul has said. I do however take pleasure in reporting that indeed this is not commercial radio. Thank goodness. Our goal can be different. I site as an example the

WRONG - althought not a FCC mandate, most repeater owners stipulate that the user insure his ID is repeated. FCC upholds these type of rules of the repeater owners. 73 P

Repeaters in ham service are for the amateur radio operator to experiment with in all fashions to better understand all methods of communications and invent new forms. Repeaters in commercial service

Agreed. PL is wonderful for those who wish to listen, but if someone actually want to *use* any of other two repeaters then there is going to be QRM. My subtle point was that PL does not make a

Mike Hamann wrote: <snip> Nope. Got it clear as a bell that time. The ducting must be a little better now than earlier. Yep. And it's even later now. :) Thanks for the