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Search found 640 matches

by SlimBob
Wed Feb 01, 2012 5:14 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Taking Apart Saber Battery
Replies: 11
Views: 1872

Re: Taking Apart Saber Battery

Damn.

There's got to be a way to do this without cooking up a nicad pack.
by SlimBob
Tue Jan 17, 2012 9:30 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: SVA Question
Replies: 4
Views: 479

Re: SVA Question

Usually they wind up separate, as a 12W amplified 4" speaker with a DB25 on the end.
by SlimBob
Fri Dec 30, 2011 4:28 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Taking Apart Saber Battery
Replies: 11
Views: 1872

Re: Taking Apart Saber Battery

I'm serious. I'm building a suitcase repeater and don't want to lose the batteries or haul the extra weight.

Also... good to know.... Now I just need to find that 10-pack of them, new, never used....
by SlimBob
Wed Dec 28, 2011 7:07 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Taking Apart Saber Battery
Replies: 11
Views: 1872

Taking Apart Saber Battery

I'm looking for suggestions on how to take the Saber battery apart. I want to preserve the contact surface and most of the interior space. I want to attempt to load some capacitors into it and drop it into an SVA.
by SlimBob
Wed Nov 16, 2011 12:36 am
Forum: Vehicle Radio Installs
Topic: Need console recommend on 2011 F-150
Replies: 24
Views: 4715

Re: Need console recommend on 2011 F-150

I understand completely.
by SlimBob
Tue Nov 15, 2011 6:34 pm
Forum: Vehicle Radio Installs
Topic: Need console recommend on 2011 F-150
Replies: 24
Views: 4715

Re: Need console recommend on 2011 F-150

Cripes man, what were you hauling?
by SlimBob
Mon Oct 31, 2011 7:57 am
Forum: Vehicle Radio Installs
Topic: Need console recommend on 2011 F-150
Replies: 24
Views: 4715

Re: Need console recommend on 2011 F-150

Where's the JCU-1000? =P
by SlimBob
Sun Oct 30, 2011 7:10 pm
Forum: Vehicle Radio Installs
Topic: Need console recommend on 2011 F-150
Replies: 24
Views: 4715

Re: Need console recommend on 2011 F-150

How many of those radios are configured for RX/TX and how many are receive only? I noticed you have a receive multicoupler, and what looks like an RF hybrid in the back.
by SlimBob
Mon Oct 24, 2011 5:14 pm
Forum: Vehicle Warning Equipment Discussion
Topic: 2011 Caprice
Replies: 21
Views: 7604

Re: 2011 Caprice

That's sad because they've also asked for that input and just denied it existed. I personally threw a few ideas into the hat when I was talking with some of the electronics engineers at a plant. Oh well. So how many years left does Ford have before they have to redesign the Police Interceptor to kee...
by SlimBob
Sun Oct 23, 2011 7:48 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: maratrac siren and dek w/ spectra a9?
Replies: 7
Views: 687

Re: maratrac siren and dek w/ spectra a9?

The TO3s? I have a pile of them. PM.
by SlimBob
Sun Oct 23, 2011 7:48 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Base Antenna advice??
Replies: 15
Views: 733

Re: Base Antenna advice??

The current rate for an FCC NAL (Notice of Apparent Liability) is $14,000 per incident.
by SlimBob
Sun Oct 23, 2011 2:31 pm
Forum: Vehicle Warning Equipment Discussion
Topic: 2011 Caprice
Replies: 21
Views: 7604

Re: 2011 Caprice

Cars today are so computer controlled that the shifter is largely obsolete. And, while it'd be a throwback to the 1996 Caprice, a shifter on the steering wheel would clear up space for equipment.

Then again, steering wheel shifters are "vintage", and this car is "all new".
by SlimBob
Sun Oct 23, 2011 2:29 pm
Forum: Vehicle Warning Equipment Discussion
Topic: Question - Brightest LED & Compact Strobes?
Replies: 12
Views: 5840

Re: Question - Brightest LED & Compact Strobes?

Just make sure you wire in the night-mode sensor....
by SlimBob
Sun Oct 23, 2011 2:24 pm
Forum: Vehicle Radio Installs
Topic: NSW Police POLAIR 1 Helicopter
Replies: 15
Views: 4239

Re: NSW Police POLAIR 1 Helicopter

N69F is a sharp looking bird. That's a beautiful install and it doesn't look like it's seen much wear.
by SlimBob
Sun Oct 23, 2011 2:19 pm
Forum: Vehicle Radio Installs
Topic: Just when I thought I had seen everything
Replies: 23
Views: 7164

Re: Just when I thought I had seen everything

It is now your duty to take digital pictures of those pictures and share them with the interwebs.
by SlimBob
Sun Oct 23, 2011 2:15 pm
Forum: Vehicle Radio Installs
Topic: R.I.C.K. issue on police cruiser today...HELP
Replies: 2
Views: 1472

Re: R.I.C.K. issue on police cruiser today...HELP

Got a spare rick to test with?
by SlimBob
Sun Oct 23, 2011 2:05 pm
Forum: MotoTRBO Portables and Mobiles (4xxx/6xxx) 1.0 Series Subscribers
Topic: IPSC, GPS and roaming
Replies: 2
Views: 422

Re: IPSC, GPS and roaming

Well, that sounds like a bug.
by SlimBob
Sun Oct 23, 2011 1:43 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: maratrac siren and dek w/ spectra a9?
Replies: 7
Views: 687

Re: maratrac siren and dek w/ spectra a9?

I have a pile of HLN1185s I haven't turned into scrap metal yet.

Haven't been able to think of any practical use for them other than a PA system at 12V.
by SlimBob
Sun Oct 23, 2011 1:41 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: ASTRO Saber R
Replies: 26
Views: 2952

Re: ASTRO Saber R

That'd probably be worth a gallon of flourinert to test with.
by SlimBob
Sun Sep 04, 2011 6:02 pm
Forum: Experimental and Next Generation LMR
Topic: 900mhz Amateur Smartnet
Replies: 47
Views: 5578

Re: 900mhz Amateur Smartnet

I think you're dead on the money. We're up to another rebanding, and *loads* of equipment is going down the drain. In years past, this would cause a growth in ham radio, as radios are converted, used to make repeaters, etc. The problem is that to pull off a linked system, such as Smartnet, over a la...
by SlimBob
Sun Sep 04, 2011 5:42 pm
Forum: Experimental and Next Generation LMR
Topic: DD-WRT or Tomato or OpenWrt for ROIP system
Replies: 8
Views: 1902

Re: DD-WRT or Tomato or OpenWrt for ROIP system

Well, if you want to transvert to 3.3-3.5 GHz, there's a LOT of space out there ... IF you have two different antenna ports and can force the radio to transmit out of only one of them.
by SlimBob
Sun Aug 07, 2011 10:38 pm
Forum: Experimental and Next Generation LMR
Topic: Amateur Radio - National Experimental Trunking{AR-NET}
Replies: 41
Views: 6852

Re: Amateur Radio - National Experimental Trunking{AR-NET}

OK, so to make a multi-site linked system, we need to have IP connectivity, and some way to synchronize the audio together according to a known distance? And deal with the links changing lengths (variable packet loss)?
by SlimBob
Wed Jul 27, 2011 7:45 pm
Forum: Experimental and Next Generation LMR
Topic: Amateur Radio - National Experimental Trunking{AR-NET}
Replies: 41
Views: 6852

Re: Amateur Radio - National Experimental Trunking{AR-NET}

And that's always been the secret. But ICOM didn't get it right, because that's not how the Japanese use radios.
by SlimBob
Thu Apr 14, 2011 3:58 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Commercial radios on ham bands
Replies: 27
Views: 2905

Re: Commercial radios on ham bands

com501 wrote:I use my R8000a to check all that stuff. If I need to do an on-air check, I use one of my XTS's.


Yeah? Do you work the 'peater with it? =P
by SlimBob
Thu Apr 14, 2011 9:43 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Commercial radios on ham bands
Replies: 27
Views: 2905

Re: Commercial radios on ham bands

After years of using Japanese radios, I switched to a 1990s vintage Batwing Radio because I didn't have to worry. I didn't have to worry about: 1) someone trying to figure out how to operate the radio when I wasn't there 2) explaining operation 3) programming the radio -- either the channel is there...
by SlimBob
Sat Jan 22, 2011 8:00 pm
Forum: Vehicle Radio Installs
Topic: Got a new truck
Replies: 21
Views: 3163

Re: Got a new truck

Looks good. Very nice location, away from other antennas. I'm sure there's enough groundplane under the antenna to avoid issues.
by SlimBob
Tue Dec 28, 2010 9:18 am
Forum: Base Stations, Repeaters, General Infrastructure
Topic: Repeater antenna opinions
Replies: 17
Views: 1482

Re: Repeater antenna opinions

Be glad it's not 800 feet up a tower. Before you send it back, stand it up in the garage on wooden sawhorses and let the ice melt off of it. Check the SWR again. You may find it's a broken part somewhere instead.
by SlimBob
Mon Dec 27, 2010 5:07 pm
Forum: Base Stations, Repeaters, General Infrastructure
Topic: Repeater antenna opinions
Replies: 17
Views: 1482

Re: Repeater antenna opinions

You likely have a failure in the phasing harness. That's not entirely uncommon. Wow, old thread -- I knew half of what I know now then! =P
by SlimBob
Thu Dec 16, 2010 3:53 pm
Forum: Experimental and Next Generation LMR
Topic: Amateur Radio - National Experimental Trunking{AR-NET}
Replies: 41
Views: 6852

Re: Amateur Radio - National Experimental Trunking{AR-NET}

I am one who believes in "It's often easier to apologize than to ask for permission." What I'm saying is "Go for it." Clearly everyone has their own expert opinions on the rules, but if you are doing something in good faith because the rules haven't caught up to the times... and...
by SlimBob
Thu Dec 16, 2010 12:19 pm
Forum: Base Stations, Repeaters, General Infrastructure
Topic: new antenna vs increased power vs repeater replacement
Replies: 16
Views: 649

Re: new antenna vs increased power vs repeater replacement

What about a site on the bluff at the turn in the river?

Or a site on a high point further inland, and one down on the coast that is directional toward land?
by SlimBob
Mon Dec 13, 2010 4:17 pm
Forum: Vehicle Radio Installs
Topic: 2005 Dodge Stratus
Replies: 2
Views: 1612

Re: 2005 Dodge Stratus

larsen/radiall in black...
by SlimBob
Mon Dec 13, 2010 4:10 pm
Forum: Base Stations, Repeaters, General Infrastructure
Topic: Any StarPlex gurus out there?
Replies: 13
Views: 741

Re: Any StarPlex gurus out there?

Does anyone have a hard figure as to how much loss bird sh** contributes?
by SlimBob
Mon Nov 29, 2010 12:47 pm
Forum: Experimental and Next Generation LMR
Topic: Amateur Radio - National Experimental Trunking{AR-NET}
Replies: 41
Views: 6852

Re: Amateur Radio - National Experimental Trunking{AR-NET}

The control channel would assume the role of a propagation beacon. When someone affiliates (or attempts to) the system raises the power to whatever point necessary for the subscriber radio to respond. That sets the minimum power level, and periodicly one raises the power so radios farther out may co...
by SlimBob
Mon Nov 29, 2010 11:34 am
Forum: Experimental and Next Generation LMR
Topic: Amateur Radio - National Experimental Trunking{AR-NET}
Replies: 41
Views: 6852

Re: Amateur Radio - National Experimental Trunking{AR-NET}

Well, what if the trunking system uses a stepped-power power amplifer?

If one is re-writing the system from scratch, there's no reason why the power output of the control channel can't match the strength of the distant user.
by SlimBob
Sat Nov 27, 2010 4:44 pm
Forum: Experimental and Next Generation LMR
Topic: Amateur Radio - National Experimental Trunking{AR-NET}
Replies: 41
Views: 6852

Re: Amateur Radio - National Experimental Trunking{AR-NET}

Here's some more thoughts on implementation... A given carrier takes up a certain amount of bandwidth. Cavity filters also have a narrow bandwidth where loss is at minimum. So why not implement a one-repeater trunking site (two rx+tx) with the inputs almost side-by-side in the around the coordinated...
by SlimBob
Sat Nov 27, 2010 3:49 pm
Forum: Experimental and Next Generation LMR
Topic: Amateur Radio - National Experimental Trunking{AR-NET}
Replies: 41
Views: 6852

Re: Amateur Radio - National Experimental Trunking{AR-NET}

er, I think you need more than modems to backhaul a true trunking system. A single-channel IR with VOC is not trunking. It's fancy conventional. This is a great idea, it really is, but being someone who maintains a few "real" IR's, there's the issue of the cost of backhaul, and doing it o...
by SlimBob
Mon Nov 22, 2010 8:59 pm
Forum: Base Stations, Repeaters, General Infrastructure
Topic: Base Antenna Question
Replies: 8
Views: 508

Re: Base Antenna Question

This is the difference between putting the beam where you want it or simply ignoring the range you want to cover. People forget that more gain == less vertical beamwidth. That donut of RF gets turned into a pancake, and you can't get that pancake if you aren't in it.
by SlimBob
Thu Nov 18, 2010 5:38 am
Forum: Experimental and Next Generation LMR
Topic: Amateur Radio - National Experimental Trunking{AR-NET}
Replies: 41
Views: 6852

Re: Amateur Radio - National Experimental Trunking{AR-NET}

Let's throw this back a bit... since Motorola has largely just ignored ham radio use of their equipment, why not reverse engineer the linking protocol used by the site controller and adapt the system to an open-source controller with integral VoIP support, perhaps tied into asterisk intimately? Sync...
by SlimBob
Wed Nov 17, 2010 11:29 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Spectra's and Data Switches
Replies: 5
Views: 429

Re: Spectra's and Data Switches

A better approach would be to tap into the TTL lines on a HLN1185 siren unit and use that as an interface to the Systems 9000 bus... probably get rid of the "can't have the computer connected because -Busy is held low" issue with the RIB.
by SlimBob
Wed Nov 17, 2010 3:32 pm
Forum: Experimental and Next Generation LMR
Topic: 33cm LTR System RF Diagram (draft)
Replies: 3
Views: 1415

Re: 33cm LTR System RF Diagram (draft)

You may want a 10dB distribution amplifier before the splitter on the RX. Otherwise, it looks solid. Sure, it's expensive to use five TX antennas and heliax, but there's otherwise not much of a good way to go about doing what you need/want to. Combiners do have losses. I like the idea of combining a...
by SlimBob
Wed Nov 17, 2010 3:01 pm
Forum: Vehicle Warning Equipment Discussion
Topic: syntor xx9000 pa/siren issues
Replies: 9
Views: 4660

Re: syntor xx9000 pa/siren issues

haven't found the PDF, but I have the manual in front of me.
by SlimBob
Tue Nov 09, 2010 7:21 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Sprint's Hesse Commits To Phasing Out iDEN
Replies: 58
Views: 4348

Re: Sprint's Hesse Commits To Phasing Out iDEN

We have a regional iDEN operator, Southern LINC, that will get alot of business. Southern LINC, while operating only in a few states (Georgia and Alabama, with some of Mississippi and the Florida panhandle) has superior coverage, network reliability the traditional wireless companies with they had,...
by SlimBob
Tue Nov 09, 2010 4:57 pm
Forum: Vehicle Warning Equipment Discussion
Topic: syntor xx9000 pa/siren issues
Replies: 9
Views: 4660

Re: syntor xx9000 pa/siren issues

Haven't found it yet, still looking...
by SlimBob
Mon Oct 25, 2010 2:36 am
Forum: Experimental and Next Generation LMR
Topic: Amateur Radio - National Experimental Trunking{AR-NET}
Replies: 41
Views: 6852

Re: Amateur Radio - National Experimental Trunking{AR-NET}

You mean like D-Star, except not brain-dead?
by SlimBob
Mon Oct 25, 2010 2:33 am
Forum: Experimental and Next Generation LMR
Topic: 900 similcast repeater
Replies: 5
Views: 1432

Re: 900 similcast repeater

Another thought is to move beyond the overlap zone. Then you'll only have "overlap" in cases of band openings. If there's at least 6dB or greater signal difference, the capture effect should rule.
by SlimBob
Sun Oct 24, 2010 9:00 pm
Forum: Vehicle Warning Equipment Discussion
Topic: syntor xx9000 pa/siren issues
Replies: 9
Views: 4660

Re: syntor xx9000 pa/siren issues

Let me check and see. I know I have a siren manual _somewhere_ that I scanned.

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