Category Archives: Uniden

Favorite Scanners: The BC760XLT

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One of our favorite scanners of the past is the Bearcat 760XLT and its siblings. This was a desktop-mobile scanner family introduced in the late 1990’s. Built in a fairly small package, it fit almost anywhere.

This was one of a series of scanners in the same style case sold under the Bearcat, Regency and Cobra nameplates. Other models, like the BC950XLT, BC580XLT, BC590XLT and others shared the same case style. The 950 and 760 versions handle 800 MHz, the others do not. They were all analog-only and did not have trunktacking capabilities.

There were two optional boards for these radios. One was an internal pre-amp that could amplify the signal strength. While this was not available on the 760 and 950 versions (an 800 MHz. converter was installed in the same slot on these) an external preamp was available for these.

The most interesting thing with these scanners however was the introduction of a PL board. This was the first scanner to have the PL function, a revolutionary thing back in 1998! A pair of switches on the bottom of the radio under the bail controlled these options.

These scanners came in 2 generations. The first had an older style Motorola antenna jack and the newer ones changed to a BNC. The newer versions also allowed one to use the PL on some channels and not others while on the older ones the PL board was either on or off for the whole radio.

These radios were quite sensitive and were well known as great “Skip” receivers on low-band. They were also quite popular as the core of specialty devices like wireless mic receivers in mobile video systems, the radio portion of fire station alerting receivers and other uses due to the low cost, high sensitivity and a design that made it easy to adapt for these uses.

They were replaced by the famous BC780XLT but there are still many of these around.

 

 

When bad things happen to good scanners: SD Card Corruption

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All of the various “Zip Code” type scanners such as the Uniden HomePatrol, BCD436HP or BCD536HP, Whistler WS 1080/1088/1095/1098 or the GRE and RadioShack versions use a Micro-SD Card to store the database and recordings. This SD Card is much like a disk drive without moving parts, it can be written to and read by a computer or a device; in this case your scanner.

Occasionally these cards can get corrupted which causes them to stop functioning. The scanner will display an error message and will not operate until you repair or replace the SD Card. Thankfully this is not usually a serious issue and rarely results in anything other than some annoyance. The worst that can happen is that you lose your Favorites Lists and any recordings you may have on the card.

First let’s talk about WHY this happens. Most of the time it is due to the power being removed from the radio abruptly. These scanners are basically small computers and, like all computers, they need to be shut down properly. By doing so the radio has a chance to finish writing information to the SD Card. If the power is removed before this is done then an incomplete or corrupted file may be left. When you turn on the radio the next time it doesn’t know what to do with the file and displays the error message. While this does not occur every time the radio is improperly shut down, it only has to happen once to ruin your day.

Now there is always the possibility that the card or even the radio itself is defective but that is very rare.

What can you do to prevent this from happening to you? The best thing you can do is to make sure you turn the radio off before removing power to it. If you have it mounted in a vehicle be sure to turn off the radio by use if the volume/power knob before starting the car or turning off the ignition. If the radio loses power while still turned on then the card can get corrupted. Same goes for portable radios. do not pull the batteries unless the radio is turned off.

OK, my card got corrupted, is my scanner dead? Usually no. These cards can usually be reformatted and the database rebuilt. Even if the card is shot it can be replaced and the new card set up for your radio. You can get replacement (or spare) Micro SD Cards almost anywhere.

What can you do if this occurs to you? First make sure the card is really corrupt, some times they are just loose. Remove the card and reseat it, making sure that it clicks into place. When you turn on the radio, if it works then you are back in business. If you still get the error then you will likely have to reformat the card.

Of course the easiest way to get past this is to let us fix it for you! Just download, print and fill out the form at https://www.scannermaster.com/v/vspfiles/files/pdf/homepatrol-servies-order-form.pdf. Send it to us with the radio and we will do the rest!

To reformat the card it is best to use an application specifically for this. You can use a free program available from https://www.sdcard.org/downloads/formatter_4/. Download the one for your version of Windows and install it. You can use an SD Card reader if you want or leave the card in the radio and connected to the computer in Mass Storage Mode. If you reformat it using Windows directly it may not be done in the proper format. Sorry Mac guys; you need Windows for this!

Once reformatted you need to reinstall the database. On Uniden scanners this is done as follows:

1: In Sentinel under the Home Patrol menu select Clear User Data, click on the Display All Drives box.

2: Be sure to select the correct drive letter then click OK. (You do not want to erase your C Drive!)

3: Run Sentinel on the computer and select the Update Master HPDB option in the Update Menu.

4: In Sentinel under the HomePatrol menu select Write to HomePatrol .You may need to select that drive again, but it will not show the serial number of the radio this time.

5: Eject the card and put it back into your scanner (if not already there). When you turn on the scanner you should be all set. You many need to reset your location, Service Types etc.

Of course this requires that you have Sentinel running in a Windows computer. If you don’t have Sentinel installed (it comes on the SD Card…) you can download it from Uniden’s website.

Whistler, GRE and RS scanners use slightly different procedures, check the manual for your radio for these.

 

Favorite Scanner: Uniden HomePatrol   

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This weeks Favorite Scanner comes from our Programming Manager Greg Jolly. Greg likes the Uniden HomePatrol best for its ease of use.

The Uniden HomePatrol was introduced several years ago to address several concerns. Many people wanted to listen to their local police, fire and other radio activity but did not know (or want to know) how to program scanners. The HomePatrol brought a whole new dimension to scanning: instead of learning frequencies you just put in your ZIP Code.

The HomePatrol really makes Greg happy, being the ScannerMaster Programmer it makes his job easier! It just requires a periodic update to keep it humming along.

The HomePatrol 2 was introduced recently to cover those areas using “Phase 2” digital, otherwise it works the same as the original HomePatrol.

 

Favorite Scanner of the Week: Bearcat BC780XLT

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Here at ScannerMaster we have decided to highlight some of our favorite scanners of the past and today. For the first entry in the series we have chosen what may well win the “Favorite Scanner” award from more people than any other radio: The Bearcat BC780XLT. Both Jonathan and Rich C. chose this as our favorite scanner from the past.

The “780”  as it is well known, came out in 2000 and was an instant hit with the scanner community. It had 500 channels and came with trunktracking capabilities for Motorola, EDACS and LTR, computer access and many other features.

It was joined in 2003 by the BC785 which had 1000 channels and added a digital card for use on digital conventional and trunked systems, and that in turn was quickly replaced by the BC796D that added support for 9600 Baud digital trunked systems.

The BC780XLT combined a compact package that was equally at home mounted in a vehicle as it was on the desktop. Dealers were sold out as soon as they came into stock and despite it’s high price of about $600 (about $1000 in today’s dollars) people couldn’t get enough of them.

An entire cottage industry for accessories for the 780/785/796 scanners was created. ScannerMaster designed an internal battery pack for the series so one could use it in the field. A nylon carry case so one could carry it around with them was sold for it as well. A Remote Head kit was built to allow more flexible mounting in vehicles, and many other accessories were developed.

The BC780 t is still used by many today for aviation and railroads as well as other analog uses.

BC780XLT

BC780XLT

Scanner Tip: Everything you need to know about trunking but were afraid to ask

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In the old days of scanning things were pretty simple, you put in the local police frequency to listen to the police. In many parts of the country however, this no longer works. Most cities, many counties and even entire states use Trunking Systems. What are trunking systems and how do they work?

The best way to explain how a trunking system works is the analogy of a set of bank teller lines. The bank has 5 tellers, you can line up at any of the 5 lines and hope your line goes faster than the others. Then you get stuck behind the lady that wants to have her penny jar counted by hand…

These days however, banks have a single queue and you go to the next available teller when you reach the head of the line. This is exactly how a trunked radio system works: All users are in one queue and get assigned the next available channel. Instead of having a separate frequency for the FD, one for the PD and another for the ambulance, they just go to the next channel that isn’t being used.

All this is controlled by a computer system called, appropriately enough, a “Controller”. The Controller watches the system and when a radio requests to talk it assigns that radio and any other radio in its group to a channel. All this happens in a fraction of a second.

Radios have all the frequencies used by the system programmed into them and the system is broken down into various virtual channels, called “Talkgroups”. Talkgroups are assigned to various uses like channels would have been before. For example, Mayberry PD might be assigned Talkgroup 101 for Dispatch, 102 for Car-Car and 103 for Detectives. Mayberry FD might be assigned Talkgroup 123 for Dispatch, 124 for Fireground and 125 for Tactical. If Mt. Pilot is sharing the system they might be assigned Talkgroup 287 for Police Dispatch and so on.

There are several types of trunking systems but they all work in much the same way. There are differences in the way they get programmed into scanners as well. The main types of trunked systems in use by Public Safety agencies in the USA include Motorola, EDACS, LTR, APCO25 Phase 1 and APCO25 Phase 2.

For scanner listeners these trunked systems add a layer of complexity to the programming. Depending on the type of scanner and the type of trunked system the method used to program differs. For newer Unidens you program in a “System” to identify the type of trunking, then “Sites” to put in the frequencies used and lastly “Groups” for the talkgroup listing. Whistler, GRE and Radio Shack scanners with Object Oriented programming work differently. On LTR and EDACS systems you have to identify the proper “LCN” channel numbers, these are usually well documented at www.radioreference.com. Motorola and APCO25 systems do not need the frequencies in any particular order.

HomePatrol and other scanners with the Database feature will have these Trunked System parameters already programmed so you can just select the Service and location to listen to them. They do all the heavy lifting for you.

Keep an eye on the ScannerMaster Blog for our explanation of Digital operations!

Drivers? What are they and why do I need them?

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If you have a scanner and a computer you will most likely want to use one with the other. Computer programs (like ARC products) are great for programming and controlling scanners.

Windows however tries to make life difficult for us and requires almost everything we connect to a computer to have “drivers”. Drivers are basically small programs that allow the computer and device to talk to each other, kind of like an interpreter.

If the stars are all aligned and all is well with the world the device driver will load automatically when you plug in the device. If not then you will have to install a driver to make it work.

We have a link here that helps scanner users get drivers and load them. This page also links to download pages for the drivers needed by many scanners.

Depending on the scanner you have the driver might be connected to the radio or to a separate cable. If your scanner has a standard USB port on it (such as a HomePatrol, a BCD996P2, BCD325P2 or some of the other newer model Uniden and Whistler scanners) then the driver goes to the radio itself.

If you have an older radio with a USB-serial adaptor cable, such as a BCD996XT, BCD396XT, PRO106, a PSR 500/600 etc. then the driver is matched to the cable (like the Uniden USB-1, or the blue, orange or black RadioShack/GRE/Whistler cables). Once the cable has the proper driver installed and a serial port (Comm-X) number assigned it can be used for any compatible radio with no further issues.

Some radios use an old fashioned serial port with a DB-9 connection, either on the radio or it’s programming cable. These require a serial port on the computer itself or the use of an USB-Serial adaptor. If you use a USB-Serial adaptor then the drivers connect to the adaptor.

The common denominator for all this is that the radio gets a “Com Port” number assigned. This will show up as “COM1” , “COM36” etc. Once this number is displayed in the Device Manager use that number in your programming software so the radio and program can communicate. This is kind of like a channel number, if the radio and computer are both set to the same Com Port number they can talk.

Com Port and communication issues are the biggest problem faced with users of software and scanners. Once you get the drivers loaded and the program set to the right com port then you can read and write to the radio all you want.

Some older USB-Serial adapters and cables will not work with some newer versions of Windows, or with 64-bit versions of Windows. Others require newer drivers to be downloaded and installed. Once installed the drivers should automatically be loaded each time you plug in the cable but sometimes Windows may change the com port number so if you have problems check the Device Manager to make sure.

Scanner Tip: Why doesn’t a charger come with my scanner?

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Until recently most handheld scanners came with an AC wall charger/power supply and some even came with mobile power cords for the car. Newer models these days often do not. Why is that? Is Uniden or the others trying to save a buck here and there? Is there a conspiracy to sell more chargers?

Well, the answer is complicated and there are a couple reasons involved. The most important is that the various manufacturers are switching many portable devices, including scanners, to charge off of common USB devices. Since many different devices are going this route, like cell phones, headsets and others, scanner manufacturers are following suit. This lets consumers use a single charger with many devices. This is a good thing! Sure, scanner makers might save a buck or two here but so will you.

Another reason is regulatory. Some states have set up rules to govern consumer electronic devices including scanners and cell phones; USB charging is one way to comply with these rules.

By using USB to charge or power your scanner you can use any of the several chargers you likely already have at home. If you are reading this you almost certainly already have a USB charger. Don’t think so? How about the computer? If it has a USB port chances are it will charge your scanner just fine. Got a cell phone or tablet? Chances are it comes with a USB charger. The cable may be different but the USB charger will probably work with the scanner.

Newer scanners with USB usually come with the USB cable. This is used for both programming and charging. Older Uniden scanners, like the BCD396XT, have serial ports instead of USB and have non-USB charging ports. GRE & Whistler built scanners have either a direct USB port (like on the WS-1095) or serial ports (such as the older PSR500/PSR600)

The USB cable that comes with most scanners is called the “USB-Mini”, most newer non-Apple cell phones and cell phone accessories use the “USB-Micro”. You can usually use any USB-Mini cable for the scanner so there is a good chance you already have some lying around. Leave one in the glove box to charge the scanner in the car and another in the camera bag. ScannerMaster sells replacement cables as well.

Another thing to remember is that handheld scanners will generally NOT charge the battery while the radio is turned on. USB has limits as to the power available so if you need to charge the batteries turn the radio off. USB will power the radio if the batteries are dead or missing but it cannot power and charge at the same time.

If you don’t already have a spare USB charger and cable or two lying around ScannerMaster sells them for both the house and the car. You can also use external battery chargers; these tend to charge faster than charging in the radio. (AC Adaptors)  (Mobile Adaptors)

Also remember that while most handheld scanners these days use AA batteries you cannot charge Alkaline cells. Do not try to charge alakalines. They tend to leak, burn or do other nasty things that can destroy your radio and melt your brain if you try to charge them.

One more note to remember: Base/mobile scanners that have USB ports but that do NOT run on batteries (like the BCD996P2 or BCD536HP) cannot be powered by USB, they need their included AC adaptor or some other source of 12 volts DC. These scanners use the USB port for computer access only.

Scanner Tip: Care and feeding of scanner batteries

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If you use handheld scanners then you have to manage batteries. Most scanners come with or use rechargeable Nickel Metal Hydride cells, often abbreviated to Ni-MH. There are still some older Nickel Cadmium (“Ni-Cad”) cells still around. There is also a newer technology called Lithium Ion (“LI”). If you still use one of the older scanners with composite battery packs (like the BC250D or BC296D) these likely use or NiMH battery packs.

Current scanners almost always use “AA” sized batteries. AA Ni-MH batteries are very common these days and can be found almost anywhere and are also used in a wide variety of different applications. LI batteries are more expensive but are lighter in weight and provide longer life in many instances.

If you charge your batteries in the radio then remember that it is likely set up for Ni-MH. If you use Ni-Cad or LI cells then the charge times will be different. If your radio supports altering charge times then you could change it to match.

Whatever you do make sure that ALL the cells in the radio are the same! Do not mix different types of cells. Also make sure that you do not try to charge alkaline cells like Duracell or Ray-O-Vac’s! This is an easy way to blow things up and make nasty things happen. If you do this warranty will not cover you and the repairs are on you.

If you want to use rechargeable batteries that are different than the ones that came with the radio then consider a separate charger. This would allow you to manage 2 or 3 sets, one for current use and another for standby when the current ones are depleted and a third set in the charger. Make sure the charger you use is appropriate for the batteries you use.

What about Alkalines? Alkaline batteries, such as Duracell’s, Energizer or Ray-O-Vac brands, are great for scanners. You do need to make sure that you do not try to charge them. On many Uniden scanners there is a tiny switch inside the battery compartment that you can select Alkaline or Ni-MH. If you select Alkaline the radio will not attempt to charge batteries in the radio. If you have a RadioShack, GRE or Whistler handheld scanner then the yellow battery holder will charge your batteries when the radio is plugged into an outside power source, so do not use the yellow holder for alkalines. The black battery holder is used for alkaline batteries.

One other thing to consider is that rechargeable batteries produce a slightly lower voltage than alkaline ones do. Typically rechargeable cells produce 1.2 to 1.25 volts compared to 1.5 volts for alkalines at full charge. Usually this is not a problem; the extra quarter-volt per cell is not going to burn up your radio. Using higher voltage alkaline cells will allow the radio to run a bit longer before the battery warning starts.

Here is a little hint for users of later Uniden scanners: You can see how many volts your battery has at any time by pressing the rotary knob down while scanning. Make note of the voltage with fresh cells and the voltage when the battery warning starts. This will give you a good idea of when to expect the need to change or charge the batteries.

I always try to keep an extra set of batteries handy when I am out and about. Save those little battery boxes or use something to keep the batteries from shorting and bouncing around. I use a prescription bottle; larger ones are perfect for 3 or 4 AA’s! I can then toss that in the glove box. Just remember to take off the label so the world doesn’t find out what meds you take. Do they make a pill that will cure a scanner addiction?

Show off your shack! – Jason Rabinowitz New York, NY

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Learn how to Show off your shack! – read more

Hi. My name is Jason Rabinowitz. I am a paramedic supervisor for an ambulance service in the NYC area. I have been involved in the scanning hobby since 1981.


I currently have the following in my work vehicle: (above)
Uniden BCT15 with a BC-RH96 remote head that I use primarily to listen to conventional radio traffic (NYPD, FDNY, EMS, Hospitals)

I also have an Uniden BC346XT that I have attached to another BC-RH96 remote head. This allows me full control over the portable scanner via the remote head’s functions. I use this radio primarily for trunking communications (NYC DOITT UHF system, Port Authority, and NYC 800 mhz system) such as NYC OEM, FDNY EMS supervisors, FDNY Hazmat, FDNY marine units, Port Authority Police operations at the area’s 3 major airports and bridge/tunnel crossings into NJ. I use a 12-volt amplified speaker for the audio.

The Mototrbo portable on the right is for my company radio communications.

Learn how to Show off your Shack! – read more

New Product – Uniden Bearcat BC75XLT

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By Richard Barnett

Product:  Uniden Bearcat BC75XLT
Price: $99.95

All-New Low Cost Bearcat Scanner

The Bearcat BC75XLT is a brand new low-cost scanner from Uniden. This radio is compact, easy-to-program with solid audio and a big bright numeric display. At $99.95 it’s a great entry-level portable scanner but it will not work with 800 MHz, trunking and digital systems which are used in many areas of the country. This radio is perfect though for monitoring public safety agencies which use conventional analog radios as well as railroads, marine, auto racing and civilian and commercial aviation (not military). To find out if this scanner will work in your area contact us by E-Mail or check out policescanners.net.

This scanner also includes Uniden’s incredible Close Call technology for rapidly finding active channels, service searches, priority and more. It operates on two AA batteries and can be powered and re-charged using USB cords (adapters available). The radio comes with a rubber-duck antenna, belt clip, charging cable and manual. It’s an all-around great basic scanner and for the sophisticated hobbyist it’s really useful as a backup or Close-Call only radio to have in your car or at-the-ready for emergency weather monitoring at home.

Frequency Coverage:
25-54MHz, 108-174MHz, and 406-512MHz
(Compatible with Narrowband VHF/UHF Systems)

In the Box:
BC75XLT, Wideband rubber antenna with BNC, USB Cable, and printed materials.

Powered by:
2 AA Batteries, (not included). Use 2300mAh Hi-MH or alkaline batteries.
Optional AC USB and DC USB adapters available.