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Search: Posts Made By: kb4mdz
Forum: Industry Discussion 04-25-2018, 8:40 PM
Replies: 38
Views: 1,991
Posted By kb4mdz
, Well, how much of the Security Team's use...

,

Well, how much of the Security Team's use of radio is getting response from other members to go to a one spot in a hurry, and how much is keeping sensitive information away from a 'bad guy'?? ...
Forum: Radio Equipment Installation Forum 04-25-2018, 8:08 PM
Replies: 11
Views: 1,264
Posted By kb4mdz
Because they BELIEVE in their heart of hearts...

Because they BELIEVE in their heart of hearts that drilling a hole in a flat surface like a trunk lid or a roof lessens the resale value of the car.

Never mind that cop cars and such rack up huge...
Forum: Industry Discussion 04-23-2018, 7:00 AM
Replies: 59
Views: 3,296
Posted By kb4mdz
My favorite line to my users about this is "Don't...

My favorite line to my users about this is "Don't pick up the radio by the handle. Did your mama pick you up by your handle????" This is so odd-sounding that they think about it for a minute, and...
Forum: Radio Equipment Installation Forum 04-04-2018, 8:51 PM
Replies: 13
Views: 6,303
Posted By kb4mdz
Looks good from here! A suggestion: Make an...

Looks good from here!

A suggestion: Make an intermediate junction point between the CDM accessory connector and the punchblock; maybe wire an RJ-45 jack close to the 66 block, and another one...
Forum: Radio Equipment Installation Forum 04-04-2018, 4:28 PM
Replies: 13
Views: 6,303
Posted By kb4mdz
Yup, since it serves as the low...

Yup, since it serves as the low side/return/ground for all the signals; PTT, TX Audio, and RX Audio.
Forum: Radio Equipment Installation Forum 04-03-2018, 8:14 PM
Replies: 13
Views: 6,303
Posted By kb4mdz
For the CDM Series: Pin 3 is PTT commonly;...

For the CDM Series:

Pin 3 is PTT commonly; pull to ground to activate.

If you're thinking of TX- as TX Audio -, tie it to CDM pin 7, ground, and tie to 66 block pin 28.

Repeater-Builder's...
Forum: Industry Discussion 03-28-2018, 6:42 AM
Replies: 6
Views: 461
Posted By kb4mdz
In a previous life I worked in a factory that...

In a previous life I worked in a factory that made telephones (now over 35 years ago). Yes, that's pretty much how it's done. Coil some cable around a mandrel, secure the ends (of course), send it...
Forum: Industry Discussion 03-14-2018, 6:12 PM
Replies: 9
Views: 1,572
Posted By kb4mdz
Hmmm, been ages since i've been in the software. ...

Hmmm, been ages since i've been in the software. That being said, it wasn't very sensible in my opinion, either.

Yeah, having to be in Monitor for it to alert is kinda weird, too. That should...
Forum: Radio Equipment Installation Forum 03-12-2018, 12:32 PM
Replies: 7
Views: 715
Posted By kb4mdz
Sounds to me it's a radio issue, not a remote...

Sounds to me it's a radio issue, not a remote issue. Local/nearby interference of some sort, causing the radio to unsquelch, even in PL mode.

A portable next to the radio doesn't hear it? ...
Forum: Radio Equipment Installation Forum 03-07-2018, 8:49 PM
Replies: 14
Views: 2,442
Posted By kb4mdz
Been following this thread; I've found this for...

Been following this thread; I've found this for multiple radio powering:

Cooper Bussman #15600 series;

http://www1.cooperbussmann.com/pdf/c08d920b-d81a-4334-ba08-57bef755608b.pdf

4 thru 20...
Forum: Industry Discussion 02-14-2018, 6:34 AM
Replies: 9
Views: 1,572
Posted By kb4mdz
cw212017 - Did you get your question...

cw212017 -

Did you get your question answered yet? I've been following this thread but haven't seen you respond. And you haven't allowed private messaging to your profile.
Forum: Industry Discussion 01-28-2018, 8:30 PM
Replies: 9
Views: 1,572
Posted By kb4mdz
Tell us a little more about how it is all set up....

Tell us a little more about how it is all set up. Are you using a Federal Informer as your alerting RX, or something else? Last time i messed with Informers i think audio was able to be routed...
Forum: Industry Discussion 10-31-2017, 8:01 AM
Replies: 9
Views: 866
Posted By kb4mdz
CDM1250's are about a $0.25 a dozen on the used...

CDM1250's are about a $0.25 a dozen on the used market. I've been involved for several years with replacing a bunch o' Federal Informers (which would occasionally get stuck in stupid mode, randomly)...
Forum: Industry Discussion 09-22-2017, 8:40 PM
Replies: 22
Views: 1,822
Posted By kb4mdz
Tell us how you really feel. You left out...

Tell us how you really feel.

You left out the crappy computers filled with bloatware and adware, assembled in China (can you say FoxConn?) with practically slave wages and conditions. Messrs...
Forum: Industry Discussion 08-19-2017, 4:04 PM
Replies: 21
Views: 2,047
Posted By kb4mdz
I have no input on equipment recommendations, but...

I have no input on equipment recommendations, but I do ask for pictures of the aftermath of the cow!!!
:-D
Forum: Radio Equipment Installation Forum 07-23-2017, 6:55 PM
Replies: 22
Views: 1,909
Posted By kb4mdz
Somewhere, I think here on RR, are a couple of...

Somewhere, I think here on RR, are a couple of pictures of a CDM1250 remote mounted with the head in a plastic industrial box with a clear lid & snap latches, and the mic cord coming out thru a cable...
Forum: Industry Discussion 07-17-2017, 7:07 AM
Replies: 3
Views: 654
Posted By kb4mdz
Be aware of RF exposure levels using a...

Be aware of RF exposure levels using a glass-mount antenna that close to your pumpkin.

MY opinion: Don't do it.

Honestly, a 35 watt 800 mhz radio with it's radiation point that close, I'd...
Forum: Radio Equipment Installation Forum 04-23-2017, 4:39 PM
Replies: 103
Views: 9,139
Posted By kb4mdz
They're expensive because they are the RIGHT...

They're expensive because they are the RIGHT thing to use. It's the difference between using a hexagonal die crimp tool for RF connectors like Mini-UHF, N-type, etc, and using a pair of 2 dollar...
Forum: Industry Discussion 04-22-2017, 10:21 AM
Replies: 23
Views: 2,084
Posted By kb4mdz
What swissphone pagers are you using? And what...

What swissphone pagers are you using? And what are your feelings on the Unication pagers?
Forum: North Carolina Radio Discussion Forum 04-11-2017, 11:36 AM
Replies: 13
Views: 1,818
Posted By kb4mdz
There is also no exception for use of a business...

There is also no exception for use of a business radio, such as tow truck driver, taxi driver, delivery driver, trucker in the construction industry, nor school busses, and I'm sure several others. ...
Forum: Industry Discussion 04-03-2017, 8:02 AM
Replies: 14
Views: 4,189
Posted By kb4mdz
Garbage truck drivers who have been told by their...

Garbage truck drivers who have been told by their 'buddy' that a bigger antenna does better. 800 MHz radios. Drivers put on CB fiberglas helically wound sticks. Come to shop complaining of range...
Forum: Radio Equipment Installation Forum 01-12-2017, 10:12 PM
Replies: 5
Views: 931
Posted By kb4mdz
PM Sent.

PM Sent.
Forum: Radio Equipment Installation Forum 11-30-2016, 9:08 PM
Replies: 18
Views: 1,605
Posted By kb4mdz
Sorry, I didn't get to really finish my thoughts...

Sorry, I didn't get to really finish my thoughts earlier. What you get when you have 2 (A & B) radio signals hitting a diode is like an RF mixer. You'll get lots and lots of mixing products; the...
Forum: Radio Equipment Installation Forum 11-30-2016, 6:10 PM
Replies: 18
Views: 1,605
Posted By kb4mdz
FWIW, pager systems have a notoriously bad track...

FWIW, pager systems have a notoriously bad track record for generating RF trash.

And if there's a lot of corroded metal at a site, that too can generate more trash (for example, rust anywhere...
Forum: Industry Discussion 08-24-2016, 7:20 PM
Replies: 5
Views: 1,240
Posted By kb4mdz
Give them a call, direct. They're very helpful. ...

Give them a call, direct. They're very helpful.

index.gif (http://cpicomm.com/)

800-869-9128
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