We are a fully authorised worldwide dealer of Kenwood radio products. All products are supplied with a full warranty. Ensure your purchases are supplied by am authorised dealer. All products are supplied from the UK, and shipped registered and insured courier.
The TK-D840 is a UHF digital mobile radio from Kenwood. 32 Channels allow for sufficient communications between a small to medium sized team, these being split over 2 zones allowing for communications to be separate between departments or sites. A 2-digit LED channel display is present on the front of the radio that gives a clear indication of the channel currently in use, this display can also adapt depending on the time of day it is in use, becoming brighter during the day and dimming at night.
Boasting clear and powerful audio the TK-D840 makes use of AMBE+2™, this technology accurately replicates the natural human speech for superior voice quality even in environments with high levels of ambient noise. A voice announcement feature will confirm the channel number to the operative, meaning that there is no need to look at the display whilst in control of a vehicle for example.
The TK-D840 is a reliable radio that is built to IP54 standards meaning that it has a limited Ingres protection against dust, whilst also being safeguarded against splashes of water from all angles. MIL-STD-810 C/D/E/F/G ensures the radios ruggedness, continuing to operate in weather conditions from as low as -30°C all the way through to testing temperatures such as 60°C.
Lone Worker Feature
Lone Worker is a feature found on many two way radios where it's able to send a pre-determined signal, for example a distress call or alarm, to other radios in range, Lone Worker requires some type of interaction from the radio user after a period of radio inactivity. An example of this is the radio can be set to require the radio operator to interact with his or her radio once every 30 minutes. If they fail to do so, their radio will start making an audible sound. If there is still no interaction with his or her radio within 1 further minute, a alarm will sound to other team members to tell them a team member is not responding to Lone Worker. The supervisor can then dispatch another team member to the non-reponsive team member's last known location to offer assistance.
Lone Worker is built-in to the Kenwood TK-D840
Digital Basic Privacy
Basic Privacy uses a fixed "key" which is set when the radio is programmed, of which there are 255 possible "keys". Whilst this level of privacy is technically basic encryption, it's nevertheless relatively insecure. Comparable to analogue 'inversion' scrambling, it will prevent the 'casual' listener from hearing anything, but does not guarantee against eavesdropping.
Basic Digital Privacy is built-in to the Kenwood TK-D840
Channel scanning enables the user to monitor a number of channels and respond when a transmission comes through. The scan feature can usually be programmed to include or exclude channels from the scan. Scanning fewer channels makes the scan faster.
A common example is when there is a private channel and community channel programmed. This is usually the case for a shop which is a member of the local business crime reduction (or shop-watch / pub-watch) scheme. The radio would "scan", or alternate between, both channels. Normally, they might only use channel 1 for their own private use within the organisation. But when a transmission (or call) comes through on the local business crime reduction (or shop-watch) scheme channel becomes active. Then within a few seconds the radio would revert back to it's original channel 1.
Digital hybrid radios can usually scan either or both digital and analogue channels simultaneously. This allows for an extremely flexible scan facility where the user can monitor many channels across both analogue and digital modes.
Channel Scanning is built-in to the Kenwood TK-D840
Ofcom Licence Options
All licensed radios require a licence issued by Ofcom. Radiotronics can facilitate that and make the application on your behalf. Below are the licence options.
|Ofcom Licence Options|
|Security / Construction
||Hospitality / Bars etc.
|£75 for 5 years
||£75 for 5 years
||£75 for 5 years
|3 shared assigned channels that can be used anywhere in the UK. Any of our handheld two way radios can be programmed to SImple UK.
||Up to 15 shared channels that can only be used at your premises. Any of our handheld two way radios can be programmed to SImple Site.
||Up to 15 shared channels that can be used for rental companies anywhere in the UK.
||Unique channels technically assigned only to you. Used for repeater based systems.
A note on licensed frequencies. The Ofcom licence you hold or buy denotes the frequency your radios will operate on. If you already have some radios and you would like your new radios programmed the work together, please select technically assigned, and email us your ofcom licence details to email@example.com
. If in doubt, please call us on 01425 533 533.