Batboard

tvsjr

It would just be nice if Motorola would just update software and cables. Quite frankly I can't stand Motorola other than their quantars. Being on a govt contract tho we can't exactly pick what we we want. We have slowly been transitioning to kenwood for our overseas projects with much greater succe...

tvsjr

I'd like to mount them behind the rear seats on the back wall, but haven't taken apart to see if there are ribs or infrastructure to tap into, without of course going through outer body sheet metal. I don't do Chebbies, but the back panel is most likely corrugated, so you can't attach anything dire...

tvsjr

Yep... and if it's an old railroad radio, it may have a single front end in it - even narrower. The typical use case I see is an old railroad radio being repurposed for hamsexual activities... the radio will work, if a 10uV receiver is your goal.

tvsjr

Most of the Euro Moto stuff is BNC... I really wish they'd just go BNC everywhere and be done with it. Much better connectors.

I believe the EFJ 5300 uses an N.
Vertex is typically an SO239 on a pigtail... not sure about their P25 gear.
Icom is an SO239

tvsjr

You don't plug into the head, you plug into the radio. This is to ensure that you're actually keyloading the radio you think you are... someone hasn't switched the drawers on you.

tvsjr

I think he's talking about using just one side of the duplexer as a preselector for the RX side...

tvsjr

I don't believe so, but you could assign them to some bogus, receive-only channel with a frequency/tone pair that will never happen. Alternately, repeat the assignment from channel 16 in all of them (I'm going to assume you're wanting to make 16 a fireground, emergency, etc. channel?)

tvsjr

Disregard... gotta jumper emergency. I knew I was forgetting something...

tvsjr

The right solution is a speaker combiner... Fleet Radio Products made some for several years, but then disappeared. They now show up on eBay... http://www.ebay.com/itm/4-CHANNEL-AUDIO-COMBINER-AMP-MULTIPLE-RADIOS-1-SPEAKER-MOTOROLA-KENWOOD-/280939195453?pt=US_Ham_Radio_Transceivers&hash=item4169...

tvsjr

So, the installation guide for the XTL1500 indicates that ignition sense is recommended for all mobile installations, but can be disabled in the CPS. With ignition sense set to blank (or to soft power off... tried both) I can't figure out how to force the radios to power up with providing them ignit...

tvsjr

Your system is way too fast. MCX1000 software is of the same ilk as Syntor software... you need a real boatanchor. I can get it to run on a 486SL/33 by disabling CPU cache and turning the processor speed down.

tvsjr

so you know what that means. I have no clue what that means - far too painful to read. Suggest purchasing a keyboard with a functioning SHIFT key? I'm also wondering how you picked up "scrambled" TDMA on 453.55 simplex... since TDMA requires infrastructure (simplex degrades to phase 1/FDM...

tvsjr

Durrrr, title says high power, post says mid power, 800mhz radio won't ever do high power so uh, my bad. I guess that would have been more clear as "XTL O3 - high power consumption when off". I do not have one of the elusive Cowthief 100-watt 800MHz radios. 8) I ran a UHF R2 XTL (2001-vin...

tvsjr

In the remote O5 configuration, there are three power sources in play: Constant power to the deck (red) Constant power to the head (red) Switched power to the head (yellow) If you switch both red and yellow on the control head, the deck won't actually shut down (it never receives the command to soft...

tvsjr

APX4000, APX 7000. The XTS5000s are used on the conventional UHF system. You are correct - only APX family supports P2/X2.

tvsjr

Houston FD recently switched over from their venerable UHF conventional system to a new Moto X2 TDMA system. Eventually HPD will move as well, and this system will become a true Phase 2 system. I haven't been down that way lately (Otaku will comment, I'm sure) but I suspect they have UHF and 700 pat...

tvsjr

I have... for better or worse, the O3 receives all of its power from the deck via the control cable. Theoretically, the radio should operate properly with nothing more than +12 to the main power connector and an O3 mic plugged into the TIB. At least, that's what I've always found previously. I'm won...

tvsjr

I'm having a bit of a challenge with a mid-power 700/800 XTL5000 O3. Regardless of what I've tried so far, the radio draws right at 1 amp when turned off from the control head - and remains toasty warm all the time. After some searching, I've tried enabling the "require control head to power on...

tvsjr

The ASTRO25 line is very picky on CTCSS. I've had similar issues with a few repeaters - both public safety and amateur. Always a CTCSS problem... either deviation or slight frequency error.

tvsjr

I haven't pulled mine apart in a while, but I seem to recall the MUC boards are missing the power supply components, in preference of a single power supply for the whole unit. If I remember wrong, you could always bypass the supply and provide it DC directly. You'd need to confirm the input voltage....

tvsjr

What would be a good antenna analyzer? We use whips and balls where we can, but these combines are just too high. An antenna analyzer is a piece of test equipment that measures VSWR/return loss across a broad spectrum. Rather than trying to guess where the antenna is tuned, it shows you the big pic...

tvsjr

Find a real antenna analyzer and have them swept. I bet the antennas are improperly cut.

tvsjr

What sort of computer are you using? It's color, so it's likely too fast for HT/JT software...

tvsjr

Actually I believe R05.03.00 is the latest.

tvsjr · Re: Newest XTS3000 Host R07.71.07, with matching DSP 08.03.05.

Host R07.71.07, with matching DSP 08.03.05.

tvsjr

Pj wrote:I'd trade my APX7000 for one of those. Would work even better for me at work I think

Ditto... I'd just be happy with an XE Model 1.5 to replace my XTS5K M1.

tvsjr

I do... even have a real factory Moto MCX1000 cable. No foamer is complete without an MCX1000 programmed for all the AAR channels

tvsjr

Typically, a government contractor is *not* someone to trust

While I don't like add-a-fuses on general principle, if it's just for the control head, it's not so bad.

tvsjr

Install looks good. A few suggestions - paint the nylon spacers to blend in (Krylon Fusion should work). Also, I wouldn't trust add-a-fuses for a transmit-capable radio...

tvsjr

will it do Phase 2 trunking also? Hello. Phase 2 trunking is outdated and is being phased out by most military systems. The new Phase 3 trunking allows 8 voice conversations in one 6.25 channel. BATON encryption is mandatory to support data rates up to 1Mbps. However, you must use a horizontally po...

tvsjr

Low band Astro Spectras exist. But you have to order them with FPP and Fascinator, and your profession should include burgling bovines.

tvsjr

I would advise staying away from the AVA. They're just a pain. Get a late model XTVA (F revision if you can) with the W3 HHCH, a pair of 3Ks or 5Ks based on your budget, and be happy.

tvsjr

Actually, you could run an amp... there are dual-band amps out there. You could also put a diplexer behind the XTVA, out to two single-band amps and single-band antennas. I wouldn't want to use this in a first-line public safety environment but it would be fine for a tech.

tvsjr

I've done the same thing, with the same results... no amount of adjustment could ever make them work right. I've had much better results with the CommPort and APX Bluetooth ear mic systems.

tvsjr

Dallas, TX FD: Dispatch and operations response on UHF conventional, simulcast/voting repeater. Fireground operations on UHF simplex. They attempted to build a box that would crosspatch fireground to a talkgroup on their local government 800 system for recording, but this never worked right as the r...

tvsjr

In a proper install, there is no inter-series jumper or adapter that is a great option. Put the proper connector on the end of the coax using the correct installation technique for the connector in question. If you aren't able to do that, find someone who can. Jumpers, adapters, etc. just introduces...

tvsjr

RKN4081. RIBless cable, same as the CDM, PM400, CM300, etc.

tvsjr

There's no special HUB for the W3 head. Just a standard mic clip. Don't use an adapter. I've never seen a solder mini-UHF connector, but I can assure you that a properly installed and crimped connector will work just fine. Use a good quality connector (I use RF Industries typically, and prefer the 3...

tvsjr

Install S-split board, reprogram, good to go.

tvsjr

The cable setup will work. You'll need to replace the interconnect board on the drawer if you want the keyload/flash port to work.

tvsjr

TRBO. If memory serves, probably Capacity Plus... I believe Connect Plus requires continuous control channel data.

tvsjr

And to keep it somewhat on topic, the APXes haven't caught on with the special agents down here.. seems they still prefer to carry two radios (a Kenwood for VHF plus an XTS for the local trunk.) Not so much up here... 7000s on the belt, 7500s in the car. UP just bought them for the special agents u...

tvsjr

As Bill indicated, the likelihood of problems is low, but present. It's not one brand over another - it's a fault of coaxial cable in general. Compare the design of LMR400 to Heliax and you'll see the difference. If your options are LMR or 9913, go LMR. 9913 has a propensity to work as well as a gar...

tvsjr

There's no astrom.exe. Runtime -o astrom.odb.

tvsjr

Jim - your response has *what* to do with the OP's question?

To the OP, yes, it's theoretically possible but totally unsupported. If you can rewrite the firmware, sure. But there are easier ways to build a crossband repeater.

tvsjr

They're probably whining because it has hardware multikey in it. Do you have a UCM installed as well? Software ADP requires disabling any hardware crypto that is present - it's an either/or option under the Secure settings. The two flashcode options will coexist, but you can't use both simultaneousl...

tvsjr

echo ^L > lpt1
(^l = control+L)

tvsjr

It won't recognize C:\? Is that the same drive you have Windows on? It's likely formatted NTFS, which DOS doesn't grok. Put MRSS on the boot disk, or create a FAT32 partition on the hard drive.

tvsjr

Bootdisk.com - grab a DOS image and load to CD or USB. I have a Win98 DOS stick that stays in my backpack for flashing old BIOS, etc.

tvsjr

I hate to tell you this, but a TK7180 is smaller in every dimension compared to an Astro Spectra. Are you thinking of a TK790?

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