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mr.syntrx

There are companies around the place who have made excellent money selling bridge products due to the lack of COR signals out of any of /\/\'s trunking radios in trunking mode.

They use these down my way to gain access to trunking talkgroups outside the ~30% coverage delivered by the "statewide ...

mr.syntrx

There's a spanner bits included with this set that will get you out of trouble:

http://www.frys.com/product/6075398?sit ... IN_RSLT_PG

mr.syntrx

Has anyone tried out Sti-Co's CPAK-SB-UHF "quick deploy" antenna? Expensive, but for what I'm looking for I'm hoping it could work well.

http://www.sti-co.com/antenna-products/tactical-antennas/compact-portable

I've got a UHF R1225 mounted in an imitation Pelican case with a mobile duplexer and a ...

mr.syntrx

You could get quite a nice machine from Newegg for $38k

mr.syntrx

Andreas wrote:A PC up to PIII-800 with disabled cache should always wor fine.

Andreas

Except for the "AUSSP" (Australian) Saber RSS, which is based on a really, really ancient version of the standard Saber RSS. In this case it really does need to be 386 or below.

mr.syntrx

A super expensive industrial PC, at that.

mr.syntrx

If one were to search a federal database for that portable radio, what would the ID be?

mr.syntrx

I haven't noticed much of a performance difference either.

One thing to be keep in mind with the stubby is the reduced bandwidth compared with the whip. The whip is good across the whole UHF band but the stubby is useful for quite a bit less depending on what model you get, eg 440-470.

mr.syntrx

The repeater operator is probably referring to Wide Pulse mode used in simulcast systems.

mr.syntrx

I believe the PSM has one. The others don't.

mr.syntrx

What do you have Rx Unmute Rule set to?

What's Unmute/Mute Type set to?

Do you have MDC1200 or any other signalling enabled? If so, for the personalities you're having trouble with what's Unmute Type set to?

mr.syntrx

Do they charge OK in a single unit IMPRES charger?

I think I'll have to grab one or two. My ASTRO Saber 3 remains my favourite radio, but carrying it with the monster of a HNN9033 IMPRES battery, which is the same size as the radio but twice the weight gets old fast.

mr.syntrx

What's the lowest power a 110W UHF Quantar can be set to?

I'm licensed for 83W EIRP, and plan to use an antenna with about 6dBi of gain, which means I'm looking at around 20W after the duplexer etc to stay legal. The RSS will allow me to wind the power down to 20W, but will the station's PA behave ...

mr.syntrx

One of their previous repeaters was a double vocoded job with a pair of XTS3000 Model 1's inside. No idea about this machine.

mr.syntrx

Do the radios in the cabs do 5 tone signalling? Selectively calling the cars this way is popular in .au

mr.syntrx

XTS 2500s in particular can be had cheap at the moment. The guys in Hong Kong have driven down the prices of even legitimate radios with their 123ABC1234 examples on that auction site.
Those "legitimate" radios are not legitimate at all. The serial numbers are randomly generated BS. Panter88's ...

mr.syntrx

Interface Metric is what you're after.

Network Connections
right click on your WLAN interface
Click Properties
Networking tab
Right click Internet Version Protocol 4, select Properties
click Advanced
At the bottom, uncheck Automatic Metric, set the Interface Metric to 1

Do the same for your WWAN ...

mr.syntrx

Looks like it's a bit smaller than the XPR6550, if the size of the accessory connector is anything to go by. Can't wait to see the documentation.

They've got an APX2000 on the way too, according to adverts they have for product support engineer jobs in Singapore.

Industrial design /\/\ had nothing ...

mr.syntrx

Since when was the RX LED on an XTS5000 green?
Must be an SP model..... :lol:
I kinda doubt the OP has actually used one, but Type 1 CCI-encrypted Astro25 radios are supposed to display a steady green busy light when receiving a secure transmission.

Yep, as well as a little "T1" next to the ...

mr.syntrx

Or wants the PD to keep using the old key, so they keep replaying old OTAR frames with that key to make sure the PD does so

mr.syntrx

ADSL modems, commonly known simply as DSL and used for residential internet services won't. SHDSL modems will, up to 4 miles or so if line quality is decent.

Otherwise, there's a box that does this with less configuration:
http://www.rad-direct.com/Product-G-SHD ... SMi-52.htm

mr.syntrx

The radio will normally transmit using only one antenna, the other is diversity receive only.

mr.syntrx

Old thread but... T1 over SHDSL? Cheap to do using second hand Cisco gear, requires one dry pair.

http://www.cisco.com/en/US/docs/ios/12_ ... #wp1139187

mr.syntrx

There have been endless threads on here asking if a 403-433 ASTRO Spectra will go to 440, and the answer has been no, but how far can a low split radio go?

I'm in Australia and we have a different band plan to the USA, where a fair portion of the simplex voice allocation is down around 433-434MHz ...

mr.syntrx

I saw a senior Australian Federal Police (AFP) officer in Canberra the other day carrying an APX7000 portable radio. I asked him why he had it and he said that only a couple senior officers had them so they could liase with other agencies comms centers. The AFP not that many years ago rolled out ...

mr.syntrx

How about EDACS? Would the infrastructure equipment be easier to configure than an old school Smartnet controller?

mr.syntrx

There's pricing information for the APX4000 etc at least one customer here:

http://www.co.berks.pa.us/Dept/DES/Documents/Radio%20System%20Upgrade/Berks%20County%20Radio%20Project%20Subscriber%20Costs%20and%20Features%20110825.pdf

$3500 list with a single AC charger and 2.3mAh battery, presumably ...

mr.syntrx

Similar story in .au with midband systems (66-88MHz.) Very little new equipment being sold, and existing users are moving to UHF or, less commonly, highband.

mr.syntrx

Are ASTRO Spectra consolette power supplies capable of 230V 50Hz operation?

Had a look at a few pictures and I can't see a selector switch on the back, if they are capable are they auto selecting, or is there a switch inside the consolette on the power supply itself?

mr.syntrx

XTS 2500s in particular can be had cheap at the moment. The guys in Hong Kong have driven down the prices of even legitimate radios with their 123ABC1234 examples on that auction site.

mr.syntrx

Is CPS going to be smart enough to still allow 25KHz channels in the amateur bands specifically, or will it just enforce narrowband channels globally?

mr.syntrx

This trick works like a champ for NiMH and NiCD, but it's worth mentioning that one should never, ever do this to a lithium ion battery. It will probably explode spectacularly.

mr.syntrx

In the P25 context, at least for most users, the cryptography doesn't realistically need to be particularly strong.

P25 is used mostly for tactical communications. The information conveyed in tactical communications is highly perishable; its value to an adversary diminishes in a very short period ...

mr.syntrx

*sigh*. A high power transmitter on the control channel output or on the conventional repeater output in close enough proximity to an operation will also render the subscribers useless.

This is a non-issue in my mind, except for the encryption being switched off.

The most successful attack is ...

mr.syntrx

bezking wrote:Wasn't P25 radio authentication supposed to encrypt the packet header? Or am I off base?

Nope. Makes life great for an adversary engaged in the 70 year old discipline of SIGINT known as traffic analysis.

mr.syntrx

escomm wrote:(and I do believe the Liberty is Type 1 compatible, yes?)

Nope. In any case you can't do type 1 (and have the item remain unclassified CCI) without additional hardware.

mr.syntrx

Nope, they can't.

mr.syntrx

newtomotorola wrote:
Many of the new gov't trunking 9600 P25 systems are in the 380-400Mhz sector of the band.
Not in Australia

And all of those 9600 systems are government systems.

mr.syntrx

For the effort involved in converting a Saber, vs the cost, why would you bother? Keeping in mind of course that it loses its type approval when you do such a mod, so you can't use it on the LMR bands anymore anyway.

mr.syntrx

Interesting. Riddle me this, then: once "Americanized", can the Aussie RSS create and shove in a codeplug that will restore it to its SP configuration?

Yep.

The radios I've dealt with have all been "ERR 0 81", from when the cops sanitised them before sending them out the door. If you corrupt the ...

mr.syntrx

UHF CB isn't narrowband! ACMA has raised a discussion paper to investigate this possibility, but in the meantime, Sabers are fine on this band.

SP303 is the infamous Australian Saber. If you try to read an Australian codeplug with U.S. RSS, it will crash spectacularly. You can shove a fresh U.S ...

mr.syntrx

It's not a trivial exercise.

If the radio has Radio Trace/Remote Monitor enabled, you can get cooperation from the system operator to get the radio to key-up for a while and provide details of what site and traffic channel radio is on while it's transmitting, you have radio direction finding ...

mr.syntrx

Depends on how wide a snapshot of spectrum you want to take.

Are you going to record 17 channels individually, or sample a huge slice of spectrum containing all those channels? If so, how far apart are the lowest and highest frequencies?

mr.syntrx

Yeah, the designers of the T3011 KVLs didn't worry about tamper resistance at all. They probably followed the principle that if someone has physical access to the hardware, the game's up anyway.

mr.syntrx

Not quite. P25 is a large suite of standards, and not all of them govern what happens over the air interface.

Even referring only to the air interface, P25 provides a lot of air interface services that aren't related to the vocoder at all, e.g. over the air rekeying, call alerts, data transport etc.

mr.syntrx

If you use the Icom FIPS-compliant DES-OFB or AES, it should be compatible with any other FIPS-compliant unit, which would include Motorola. The only encryption algorithm that causes "inter-brand" problems is DES-XL, which is proprietary to Motorola, and is not often available in other brands ...

mr.syntrx

boomboy64 wrote:Thales - ("talus") rhymes with Dallas

That's they way I've heard their staff pronounce it.

mr.syntrx

radioinstl wrote: both are also listed as "SOVERIGN AND CLASSIFIED"

Really classified, or just UNCLASSIFIED CCI when unkeyed?

mr.syntrx

jban wrote:I am supposed to get one of the new Motorola multi-band units to field test around December. Would still like to get my hands on the Liberty though.

I believe Thales are running a demo program for bona fide agencies.

mr.syntrx

I'm in on whatever group buy happens. Expect to see a whole bunch of Circle M gear getting dumped either here or on eGay when it all goes down.

The folks who did the P25 stack for this radio are "two years ahead of us (Motorola)", according to a particular /\/\ engineer. It's a pretty exciting ...

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