Housed in a durable waterproof case, this repeater is made for travel. The Lunchbox provides 8 watts of power double what most handheld radios offer. And the mobile antenna can be mounted on the top of a vehicle to gain even more range for your handheld radios.
Digital UHF repeater features Auto-switching frequency technology. With this technology there's no need to reprogram existing radios, the Lunchbox uses the same transmit and receive frequencies. That's right, you don't need a frequency pair to use this repeater, and you don't need to reprogram any of your radios to use this repeater.
The BlackBox LunchBox Portable Repeater can be order with no battery and a plug recepticle to plug directly into the repeater, OR with a built-in rechargeable battery pack. For more information please see our Returns Policy. This radio is requires an FCC license to operate. We can assist you with getting a license when ordering radios. Most business radios aren't ready to use out-of-the-box. So radio programming is needed to set the frequencies in the radio.
For some radios the frequencies can be set through a menu interface. While other radios must be programmed using a PC, radio software, and a cable to connect the radios. Basic radio programming is designed to get you up and running with a configuration which includes:.
For customers who already have radios we will match from your existing radio of the same model requires you to send us a radio. At this time we do not provide programming of advanced features.
The features below are NOT included with basic programming. Your Cart. Add to Wish List Compare this Product. Radio Programming Options Most business radios aren't ready to use out-of-the-box. Here are your programming options: You can program the radio s For radios with pre-stored frequencies you can easily program them through the radio's menu interface.
For PC programmable radios you will need the programming cable s and software. In many cases you can purchase this from us. Match to your Previous Order I f you've ordered from us before we have your information stored.
If you don't have a FCC license we can help you apply for one These licenses are for businesses, non-profit organizations, local and state government agencies. We do all the work!
Give us a call at What is included in Basic Radio Programming? Basic radio programming is designed to get you up and running with a configuration which includes: Up to 16 channels programmed to your FCC assigned frequencies simplex or duplex A default configuration of key functions Your program settings saved for future purchases No password protection to allow re-programming by another person For customers who already have radios we will match from your existing radio of the same model requires you to send us a radio.
Programming Services Not Included: At this time we do not provide programming of advanced features. Your Name. Rating Bad Good. Related Products Quickview. Top Seller.You picked up a new DMR radio! You maybe thinking, what have I gotten myself into?
Good question. DMR is the first commercial mode adopted for ham radio use. Terminology and radio setup are familiar to those who program commercial gear.
Doing so tends to leave most of us unable to change the configuration of our own radios. My goal is to demonstrate how to program a DMR ham radio code plug from scratch. This will lead to understanding how code plugs work and how to modify them. I will demonstrate programming a code plug for an example repeater, hotspot, and simplex operation. In addition to this example, I recommend looking at available code plugs online to get an idea of different ways to improve yours.
This is how I learned to program code plugs. There is no central database or repository. Code plugs are scattered around the Internet and shared online. This makes sense because local users would know where to get a code plug. Ask others in the area with similar DMR radios where to find code plugs. Similar settings can be found in other programmers and radios. Functions of not-so-obvious radio settings are described in the appropriate sections. Check radio packaging because some include the cable and software, others consider it an additional accessory.
Third-party code plug editors provide this additional functionality. All are freeware. Use at your own risk. This is my preferred MD editor. Sorting is accomplished by clicking the header columns. Radio CPS is still needed to write the code plug to the radio.
The last three are free to use but please consider a donation to the developer if you find their work useful. I like to have a notification when the transmission is complete and the channel is free. Changes will be overwritten when the code plug is downloaded again to the radio.
RT97 Portable Repeater Power Amplifier UHF
This is a commercial carryover to keep users from screwing with the radio. Enter the program password, if needed, and voila. In order to successfully program a code plug for a repeater, Color Code, talk group, and time slot configuration must be known.
Also ask if the repeater has access to reflectors, if desired. A configuration example of a factitious repeater is outlined below.
Private calls to individuals are never a mandatory part of repeater configuration. They are possible and will be shown as an example. I include private call channels for frequent contacts as part of my hotspot code plug. Labeling and organization of the code plug is user preference. RX Group lists and channels will need an abbreviation or prefix noting to which system it applies.
When programming even 10 repeaters, some distinction must be made for clarity. Prefixes help programming because similar items are grouped together in the CPS.This will be constructed using two surplus mobile analogue FM transceivers for uplink and downlink, paired with an open source MMDVM -based system for the digital modem, repeater control and IP network interconnect.
The repeater will be put to use by a local amateur radio group that frequently provide communications support to community events such as fell races, along with any radio ham visitors to the area and, of course, those remote and connected to the IP-linked digital radio network. Logo of the DMR Association. The digital standard is also suited to and actively used in, the 2M and 70cm amateur radio bands, which in the UK are licensed for MHz and MHz use respectively.
DMR can support two voice channels within a standard So it is a fairly efficient system, without being overly complex.Retevis Repeater 5MHz Split \u0026 Portable Spot Scouting!
Many different vendors offer DMR radio equipment. MMDVM is an open source software project licensed under GPL v2, but with a note to say that it is intended for amateur and educational use only, with commercial use strictly forbidden. This does seem possibly at odds with the GPL licence, but is likely to do with digital codec patents. Edit: STM32F board is shown invertered here — it's USB connector should be on the outside and not positioned between the two boards!
There is also a TCXO for frequency stability, some basic buffering and level conversion, plus indicators for the mode in use and PTT active etc. The instructions provided by F5UII walk through the few steps required to install a toolchain on Windows.
However, since we were using Ubuntu it was even more straightforward. The Config. We set the configuration lines:. Andrew Back 29 Sep What is DMR? Licence-free use in Europe on the MHz band.
Non-infrastructure and without repeater use. Tier II. Support for higher spectral efficiency, advanced voice features and IP data services. Tier III. Multiple standard and hardware platform support MMDVM is an open source software project licensed under GPL v2, but with a note to say that it is intended for amateur and educational use only, with commercial use strictly forbidden. The shield was supplied as a kit of through-hole parts and took very little time to assemble.
Toolchain setup The instructions provided by F5UII walk through the few steps required to install a toolchain on Windows. Andrew Back Follow. Open source hardware and software!
Share this post. Like Follow article. Comments Add a comment xlrcomm. October 25, Upvote 0 Votes. DesignSpark Electrical Logo linkedin.This portable Repeater come with a Lithium Ion 24, mAh battery can last for days of use. The small unit is easy to carry, relocate and weighs in at only 12 pounds. This state of the art, easy to use repeater has an auto-switching frequency technology that makes using your DMR radios a breeze.
There is no need to re-program your DMR radios with this easy to use, auto-switching repeater that requires no MHZ spread. This Lunch Box uses the same Transmit and receive frequencies that came in your radios. Made by Klein Electronics and Blackbox Radios. FCC license required. Features and specifications subject to change without notice. Recent Posts. Feb 27th Kenwood Promotion. Rating Required Select Rating 1 star worst 2 stars 3 stars average 4 stars 5 stars best.
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Building a Digital Mobile Radio Repeater Part 1: MMDVM
The affordable and lightweight 9. This radio is jammed packed with features like This radio is jammed packed with features like 32 channels, divided into Add to Cart. This radio is jammed packed with features This radio is jammed packed Customers Also Viewed. Take a pair of radios on your next camping trip, hiking trip or even to your The Talkabout T is the ultimate necessity for anyone serious about outdoor adventures and sports.
With a rugged, fully waterproof design, emergency features and a mile range, the Talkabout T H2O Series keeps you connected and protected during your extreme outdoor activities. The T Blackbox 2. The affordable and lightweight 2. This radio is jammed packed with features like aIf you choose the customize, please leave the Tx and Rx frequencies you want when ordering.
Offset: 5mhz or 10mhz 2, Output power: 10W. Very small and easy to carry, you can use it outdoor. Very convenient. For Custom Frequency, it takes usually 2 weeks to Ship. Please Note it.
If you want the offset lower than 5mhz, please contact with us first. Order Handling Time within 3 Working days Pre-sale products excluded. Close Menu. If you need the offset lower than 5mhz, please contact with us first.
If you want to customize the TX and RX frequency, please contact us! Manuals RTEnglish. Add to cart. Request a Quote. Add to Wishlist. Applicable Accessories. Product Reviews 5 reviews. Write a review Name. Review Title. Body of Review Great Product on Jun 10, I recently purchased a RT Watched some reviews online and appeared to be the right product for my application.
I have several acres of forest in northern Ontario, Canada with many hills and valleys. Cell communication is spotty at best. Radios work until your separated by a hill or valley. This product solved all of my issues.
Highly recommend. Make sure to buy the antenna and cable as it is sold separately. Good little repeater. I got 17 miles out of it today. Seems like a good little repeater that doesn't consume alot of power. Nancy with customer service was very helpful in helping place my order correctly.
The repeater works very well, I paired it with their base antenna and am very pleased. Response time via email was quick and the shipping to the US was only a few days, even now during the pandemic!
Very impressed. Finally, an all in one package for rapid deployment for ARTES or Emcomm by a trusted brand at a price anyone can afford. RingwayManchester on Feb 02,Introduction: "The nice thing about standards is there are so many to choose from. Yet, everyone has to have their own standard! And guess what? Absolutely none of them are compatible! Choosing what digital voice standard you'll go with can be daunting.
In the ham radio arena, the picture is a little less clear. DStar took an early lead, but Yaesu is keen to take market share with their Fusion offering.
Hams have always been keen to leverage off existing commercial equipment, and it seems the most popular commercial system adopted presently is DMR. This is helped in no small part by the ready availability of DMR radio equipment at prices that rival traditional analog two-way radio, and that one of the biggest names in two-way radio, Motorola, are throwing their weight behind DMR.
Three flavours: There are three "tiers" or levels of functionality for DMR systems. Tier 1: The simplest form of DMR is Tier 1, which is mainly used for simplex communications, with no repeaters.
Tier 2: Things start to get a bit more complicated here.
Black Box "Lunch Box" DMR Digital Repeater 8W w/ Antenna
What this means is that two completely separate radio transmissions can be going through the repeater at the same time; each radio takes turns in transmitting in short Repeaters can be linked via the internet to form networks that can be as small as just two repeaters, or thousands of repeaters across the world. Tier 3: This is effectively a trunked radio system on top of Tier 2.
A pool of frequencies are used to carry the TDMA transmissions. This is used by more complex or larger networks for big businesses and commercial radio users. DMR has the advantage that it four times more efficient when it comes to spectrum usage.
Not only that, but DMR offers some very flexible calling facilities - you can call one person, a group of people, or everyone in your fleet at once. While not every DMR network supports it, sending of data and short messages is also possible.
DMR is also designed to be easy to network, with connections using IP, so creating wide coverage areas using a network of DMR repeaters is already built-in; cover your city or cover the entire country! Yet another advantage is because a DMR transmitter is only turned on about half the time due to it transmitting in bursts, battery life is longer. On a repeater or simplex frequency, every radio must use the same colour code to be able to communicate together.
The main use for colour codes is for where two repeater coverage areas on the same frequency may overlap, different colour codes are used to ensure each radio accesses the correct repeater. Timeslot: For Tier 2 and 3 systems, a timeslot is a slice of time, about 30ms long, that a radio can transmit in, or receive in.
There are two timeslots per frequency, and you need to have your radio configured for the right colour code for the repeater, the correct timeslot and correct talkgroup for you to be able to hear anything. Typically a zones are divided into repeaters for different areas, so you might have one zone for the west side of a city, and another covering the east side of the city - but there's nothing to say that you must set up a zone that way.
Code Plug: This is a Motorola term that has stuck over the years, and in the DMR context means a complete configuration file of channels, talkgroups, zones, contacts etc. The code plug can be saved to computer disc, and is used to program a radio to give it the functionality a user requires. Hotspot: A small box that connects to the internet and acts like your own personal low power DMR repeater, useful if you're not in range of a DMR repeater to access.
So what's in it for me? Lets take a quick look at each: Ham radio: Hams have long taken advantage of surplus, second hand, or even new commercial radio equipment and re-purposed it for their own use, and DMR equipment is no exception. Worldwide, DMR enabled and connected repeaters are appearing and are interconnected to provide a huge linked network spanning the entire globe. Depending on the talk group selected, you could be communicating just around town, across your region, across the entire country, and some groups even cover the world.
Motorola DMR equipment is frequently used, but increasingly the cheaper units, in particular TYT, have increased the affordability and availability of DMR equipment to the mass market. In some cases, you can get on air to the DMR scene for less than a hundred dollars! Scanning: As the world relentlessly marches on to a digital future, many businesses and commercial interests have migrated their legacy analogue FM two way radio systems to DMR. There are scanners available that can hear DMR, enabling the scanning hobbyist to continue to listen to such transmissions.
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