Showing posts with label UHF CB. Show all posts
Showing posts with label UHF CB. Show all posts

7 May 2016

CompareTheBaofengs.Com

Those guys at BaofengTech have produced a handy guide to the different Baofeng Radios to held you choose the one that's right for you:

    (CLICK TO ENLARGE)

I must say that I own most of the radios on the chart and I find them all to be very capable radios. They are certainly amazing value for money!

 

8 April 2016

Baojie TM-218 VHF/UHF Mobile Radio



Another interesting item spotted on eBay, the Baojie TM-218. A tiny little radio that should fit perfectly into any vehicle, with up to 25 watts of output power and the all important 6.25Khz step!

Price is around £65

Feature:
  • Dual display, dual standby & Dual Track
  • Frequency adjusting
  • Working mode selecting
  • Scrambling encryption function
  • Voice companding function
  • Frequency/Channel scan function
  • Reverse frequency setting
  • Busy channel lock-out (BCL)
  • Time-out timer (TOT)
  • High/low power selectable
  • CTCSS/DCS encoding and decoding
  • Broadband (Wide)/Narrow band (Narrow) selectable
  • Frequency Step Selectable 2.5/5/6.25/10/12.5/25/50KHz
  • Level Threshold “Squelch” adjustable from 0 to 9
  • Tri-color background light selectable
  • PC software programmable
  • FM radio function
  • Operation for manual channel memory and delete
  • Automatic lock-out
  • DTMF signal setting
  • DTMF signal
  • PTT ID Setting
  • Remote control function
  • Remote monitoring
  • Remote stun
  • Remote kill/shaking
  • Remote reliving
  • Alarm function
  • Group calling function
  • Team calling function
  • Selected calling function
  • Function key guide voice(BEEP)
  • SFT/Slip frequency direction
  • OFFSET/Slip frequency
  • 1000Hz/1450Hz/1750Hz/2100Hz selecting
Specification:
All of our item are brand News
ModelTM-218
ColorBlack
Frequency RangeUHF:400-480MHz&VHF:136-174MHz
SystemF3E(FM)
Channel capacity256
Input voltageDC13.8V(±15%), negative grounding
Output powerH:25W, M:10W, L:5W
Channel Spacing12.5KHz/25KHz
Frequency Spacing2.5/5/6.25/10/12.5/15/25/50KHz
Squelch wayCTCSS/DCS/DTMF
Antenna impedance50 ohm
Frequency stability±2.5ppm @ -10°C~+60°C
Working temperature-20°C~+60°C(-4°F~+140°F)
Max. Frequency deviation±5KHz
Noise radiation<=-60dB
Flexibility<=0.2Uv(12dB SINAD)
Max. Audio output2W @ 8 ohm 5% distortion
Working currentReceive0.3A(SQL)
Transmit5A(Max.)
Dimension105*30*106mm(width*hight*depth not including the outparts)
WeightAbout 0.5kg
Package Includes
  • 1 x New Black TM-218 Machine
  • 1X Handheld Microphone
  • 1X Mounting bracket
  • 1X Power cable
  • 1XUser's manual
eBay link: Click HERE
 



5 March 2016

PMR446/UHF CB Radio Changes


Ofcom/CEPT proposals in relation to changes to the PMR446 (UHF CB) band could soon result in a 16 channel analogue and up to 32 channel digital UHF allocation. The output power will remain at 500mw and radios will be required to have a fixed antenna. 

Currently 446.000 - 446.100Mhz is allocated to 8 analogue channels with 446.100 - 446.200Mhz allocated to either 8 or 16 digital channels depending on the channel spacing.

The new proposals will allow analogue and digital systems to use the complete allocation of 446.000 - 446.200Mhz.

More Information on the OFCOM website: CLICK HERE

Below you can see the proposed bandplans (Click Images To Enlarge):


 



30 December 2015

Midland GB-1 PMR446 Now In Stock @ Knights!



So there you go folks, you can now get your hands on a Midland GB-1 PMR446 radio from Doug at Knights.

Knights Website: LINK


27 December 2015

Midland GB-1 Due in at Knights £119


Doug @ Knights appears to be the first of the main retailers to announce the impending arrival of the Midland GB-1 PMR446 radio. 

The radio is due in the next few days, selling at £119, an expensive PMR446 for sure! But with the ability to be modded for extra fun this may temp some to part with their cash!

Knights Website: LINK

Instruction Manual: LINK

2 December 2015

New PMR446 - Midland GB1



The 'world's first mobile in-car PMR446 radio' apparently!

Midland GB1 Features at a glance

  • Microprocessor‐controlled frequency
  • 8 channels PMR446 FM
  • 'Flip' function: the radio can be mounted with the speaker facing up or down; the display can read in either orientation
  • Adjustable squelch on 9 levels
  • SCAN function
  • LCD display
  • Integrated magnetic antenna
  • TOT (Time out timer)*
  • Side tone: noise blanker at end of transmission
  • Monitor function
  • Busy channel (BCLO‐Busy Channel Lockout)*
  • Broad/narrow band selection 25KHz/12.5KHz (only export version)*
  • High/low power (only export version)


UK Price Around £169.99

Website link: CLICK HERE

My thoughts - A nice looking radio which certainly makes PMR446 more useful when out mobile. Almost giving users a true UHF CB System, something I've long been asking for. The radio can be modded for extra channels/power if required.

However, this should have come out 15 years ago. Anyone who wanted a UHF CB system is already using 'other equipment' and let's be honest, who in their right mind would spend £169.99 on this radio when for less than £20 they can get a Baofeng UV5R which gives more power, more channels and many more features????

Don't get me wrong, this is a step in the right direction towards UHF CB but way too late and way too expensive in my opinion.

23 November 2015

31 October 2015

Modified President Grant 2 - Less Noise, Improved Receive!



Video: YouTube/prespostt.com

Text from their YouTube channel:

"RX modified Grant 2 in an electrically noisy environment coming from the antenna. Notice the dramatic change in NB operation

Stock on right and modified on left


Modified radio has a tunable S-meter and smoother RX audio modified to my own like. S-meter is very lazy on SSB with weak signals but it is set to 50uV S9 and 160uV S9+10dB and working correctly in all modes. Fix is about to come but have to figure out best way to do it.

Both radios have same sensitivity measured 12dB sinad in all modes. You have to use slightly more volume in AM/SSB to hear the weakest signals.

President should have done Grant 2 this way from the beginning

www.prepostt.com"



So the question has to asked - Why cant President make a decent radio when a simple mod is all that is needed????

28 September 2015

PMR446 (UHF CB) New Analogue Channel Allocation

So word comes from an industry insider that the UK is set to adopt the new expanded PMR446 channel allocation.

No official announcement has yet been made so make of this what you wish but it does appear that the new allocation will go ahead.



The exsisting allocation of 8 analogue channels (446.00625 - 446.09375) have been around since the late 90's and there have been many operators calling for extra channels particularly in busy cities and town center areas. 

Having an extra 8 analogue channels (446.10625 - 446.19375) PMR446 begins to look like a true UHF CB allocation. 

Sure you only get 500mw(!) but it's surprising how far you can get from a favorable location. 

The whole band (446.000 - 446.200) will also be opened up to allow the use of up to 32 digital channels.

New radios, which will have more rigorous specifications to reduce the likelihood of interference, are expected to be available shortly after the new allocation is adopted.