Showing posts with label VHF. Show all posts
Showing posts with label VHF. Show all posts

26 October 2016

NEW: Baofeng DMR-82UV Tier 2 DMR Radio


According to Passion Radio it would appear that Baofeng are about to release a dual band Tier 2 DMR handheld radio.

Hot on the heels of the DM-5R (Tier 1, upgradeable to Tier 2) this radio is expected to be very popular with a price tag expected to be 'well below 100 Euros'.

Frequencies - VH-UHF Dual band 
UHF 400-520MHz 
VHF 136-174MHz 
Number of Channels128
Number of zones
50
channel spacing 
12.5KHz / 25KHz
Operating Current 
DC 7.4V (± 20%)
Battery capacity 
1800 mAh (Li-ion)
Autonomy (5/5/90)Digital 20 hours - 14 hours Analog
Frequency stability± 1.5ppm
Operating temperature 
20 ℃ / + 60 
Impedance of the antenna 
50Ω
Transmitter
RF power 
5W / 4W / 1W
FM modulation12.5 kHz: 8K50F3E
25 kHz: 16KΦF3E;
4FSK modulation (DMR) 
12.5kHz (only data): 7K60FXD
12.5kHz (data and voice): 7K60FXE
modulation Limiting
@ 12.5kHz +/- 2.5kHz
+/- 5 kHz @ 25kHz
Conducted Emission
DBm≤1GHz -36 / -30 dBm≥1GHz
Adjacent Channel Power
≤ -60dB
Noise FM-40dB
Audio distortion 
3%
Audio response 
+ 1 / -3 dB
Digital Voice coding 
AMBE + 2 ™
Receiver
Digital Sensitivity
5% BER: 0.25 uV
Analog Sensitivity0.25 uV (12dB SINAD)
intermodulation 60dB
Adjacent channel selectivity 60dB
Spurious Response Rejection 60dB
Noise FM-40dB
Audio response 
+ 1 / -3 dB
Loudspeaker audio power1W
Audio distortion 
3% 
Conducted Spurious Emission
-57dBm



Link to Google Translated Webpage: CLICK HERE

15 September 2016

Baofeng DM-5R - Dual Band DMR Handheld?????

Reported on QRZNOW.COM - But surely this cannot be real????

A dual band DMR handset from Baofeng with a price of only $69.99!!!!

Not only does the price seem extremely cheap but the images used are just images of the existing UV-5R range with the lettering changed at the bottom of the radio.

REAL or FAKE - You decide!!!!

14 September 2016

Yaesu FT-891 UK Price Revealed!


In their latest advert in RadCom this month, Martin Lynch & Sons have revealed the UK price of the new Yaesu FT-891:


£599.95

So is that a good price? - I'm not sure, you can get an FT-857 for about the same price and that has 2m and 70cm (Missing from the FT-891) or you could pay little extra and get the FT-991 which currently has £80 cashback and effectively costs you only £819.95.


I think that this price may well drop a little over the next few months.....

25 August 2016

4meter.se - VHF CB Website


Following the recent CB Radio allocation on 69MHz in Sweden a new website has launched for users of this band. 

Featuring information and a forum this site is sure to prove popular with radio operators in Sweden and around the world. So if you are interested in 4 Meter/69Mhz operation please take a look. Registration is free and only takes a few minutes.

The 69MHz calling channel is on 69.1875 so if you have equipment capable of operating on this frequency take a listen as you may just hear someone calling when conditions are good. 




English via Google Translation: CLICK HERE


69Mhz CB Information:

Carrier frequency in MHz:

69.0125
69.0375
69.0625
69.0875
69.1125
69.1375
69.1625
69.1875 CALLING CHANNEL

 
Maximum power: 25 W erp
Duty cycle: <10%

Channel Width: 25 KHz.
On the carrier frequency 69.0125 MHz may only mobile transmitters used
in Västra Götaland and Halland.

78 § 69, from 600 to 69.725 MHz Mobile
radio transmitter.
Maximum power: 5.0 W ERP
Duty cycle: <10%
Channel Width: 12.5 kHz

Carrier frequency in MHz
69.60625
69.63125
69.65625
69.68125
69.70625
69.61875
69.64375
69.66875
69.69375
69.71875

14 July 2016

NEW: Baofeng UV-50X3 Tri-Band Radio




Baofeng have announced their new Tri-Band mobile radio - The UV50X3
(Click images to enlarge)


"The BTECH UV-50X3 is a tri-band radio with Full Duplex capabilities (which enables simultaneous TX/RX within VHF/1.25M/UHF) - as well as dual V/V and U/U receiver capabilities. The UV-50X3 operates on 136-174MHz, 222-225MHz, and 400-480MHz


The UV-50X3 is more than just a radio - it can also act as a full cross-band repeater! Allowing you to connect or extend the range of your repeaters, handhelds, and mobiles. The Cross Band repeater works in between VHF and UHF frequencies.

The UV-50X3 will transmit at 50 watts on both UHF and VHF; and it will transmit at 5 watts on 222-225MHz.



AIRBAND (AVIATION AM) AND WIDE RECEIVER RECEPTION

The UV-50X3 was includes a wide receiver that can receive beyond the transmitting frequencies on VHF/1.25M/UHF.

The UV-50X3 can also receive:
.5-1.71MHz (AM Radio)
76-108MHz (FM Radio)
108-135.995MHz (Air Band (AM))
136-250MHz
300-399.995MHz
400-520MHz


INDEPENTENT - VFO, AUDIO LEVELS, AND SQUELCH

The UV-50X3 includes separate volume adjustments for the independent VFOs. The UV-50X3 has dual speakers in the LCD panel - allowing stereo audio when one station is being received, but separate monaural speakers when both VFOs are active - which are controlled by the separate volume knobs. A third speaker is located on the radio body - which can be set as the only speaker, simultaneously be used with the panel speakers, or can be unused as well.

The UV-50X3 has both line-in and line-out jacks that allow you to output the radio audio to your own speaker system. The UV-50X3 allows you to listen to a line-in source while still monitoring your local nets.

The squelch is adjustable on each side of the display. Separate wide and narrow ceramic filters enable true narrow band operation.



1000 MEMORY CHANNELS

The UV-50X3 has 1000 memory channels and 2 separate memory banks (The Right VFO has 500 channels, the left VFO has 500 channels). You can program both active (TX/RX Channels) and passive (RX Only) channels into the same Memory bank.

SEPERATE, CUSTOMIZABLE FRONT LCD PANEL AND DTMF MICROPHONE

The UV-50X3 has a front panel that is separated from the main radio body. The panel is connected with standard Ethernet cable (15' included) allowing the radio body to be remotely (or trunk) mounted. The Front Panel includes several mounting accessories including a suction cup mount. You can set the LCD Panel to 8 different colors.

The Front Panel has a built-in microphone which allows you to either use either the included DTMF Microphone or Panel Microphone. The Separate DTMF microphone can also be plugged directly into the Main Radio Body.

PROGRAMMABLE AND CUSTOMIZABLE

The UV-50X3 can be completely programmed without a computer (including Channel Alpha-numeric names). 

The UV-50X3 is FULLY supported through the free CHIRP programming software (requires the PC05 Programming Cable). The UV-50X3 is the first radio to exclusively only use CHIRP software for programming. CHIRP is compatible on Windows, Linux and OSX (macOS).



GROUP TONES SUPPORTED

The UV-50X3 supports the most common Analog Tones. It supports CTCSS, DCS, and DTMF calling methods. Set-up your calling methods to call by group tones. Tone calling (private line) is required by most repeater applications and the UV-50X3 supports the latest standards.

The UV-50X3 can send DTMF tones. This allows for sending ANI (Caller ID) or remote commands that require DTMF tones.

THOROUGH QUALITY CONTROL

Each UV-50X3 is individually tested during extreme temperatures (-22 F) to ensure every radio can meet advertised performance requirements. 

The UV-50X3 can endure harsh environments and still perform in the most extreme situations."

Price: Starting at $339

22 May 2016

New VHF CB Radio Band Comes To Sweden!


Information coming in via Instagram message is that Sweden have been allocated a VHF CB Radio band. A look on the Swedish Telecommunications website and a bit of dodgy Google translation later would appear to show that there are 10 channels in the 69Mhz band spaced in a similar way to the PMR446 band. Power output appears to be 5 watts with base and handheld radios allowed.

UPDATE:

A further 8 channels are also allowed with a maximum power output of 25 watts:

69MHz Bandplan:


The legal regulations can be found in this document: LINK

 

So if you fancy a go, this little Anytone should do what you need.....

16 May 2016

DV4Mobile - All Digital Modes In One Radio!!!!


Coming late 2016 the DV4Mobile radio could just be what digi-mode users have been waiting for!

The first radio to have ALL the major digital modes - C4FM, D-Star, DMRplus, dPMR, P25 (NXDN later via software update) Voice over LTE and of course, FM!

No need to have separate radios to talk to your friends using different digital systems!
 

Specifications:

Frequency range
144-148 MHz, 222-225 MHz(USA), 420-450 MHz
Output power
2 x 20W simultaneously
Modes
FM, D-Star, C4FM, DMR+,,dPMR,P25*,NXDN*, DV4LTE
Microphone
DTMF, Electret with modular connector
Antenna
N
Speaker
3.5 mm, stereo 2 x 4W at 8 Ohms
Connectors via adapter cable and 2 x 12 pin connectors:

Ethernet
RJ-45 via adapter 10/100 MBit/s
serial
USB
External Monitor
HDMI
Internal display
240 x 320 pixel, 262k color
Power
10.5-15V, 5A
GPS
Antenna combined into main antenna
Temperature range:
-40C - + 85C


More information can be found here: LINK

8 May 2016

Tim Peake's FINAL School Contact


Just a quick reminder that Tim Peake's FINAL school contact will take place on Monday 9th May at 09:26 GMT (That's 10:26 BST) with The Kings School, Ottery St Mary, Devon.

Tim can be heard in the UK and across Europe on 145.800Mhz.


Participants will ask as many of the following questions as time allows:

1. Lara, aged 13 – You have missed Christmas and Easter with your family and friends – how have you celebrated big events in space?

2. Harry, aged 12 – We have seen videos of you playing about in microgravity on the ISS – what is your favourite thing to do when ‘weightless?’

3. Elizabeth, aged 18 – From your elevated advantage point, looking down on the Earth, has your perception of the events on our planet, such as conflicts and wars been altered? Does the change in perception give any insight that we could learn from?

4. Eleanor, aged 11 – Having spent many months looking at the Earth from afar, where is the first place you would go for a family holiday when you get home?

5. Freddie, aged 12 – Over 500 astronauts have been into space, but only 12 have set foot on the moon. Do you think that we will return people to the moon again in the future? How will your research on the ISS help us if we did?

6. Naomi, aged 13 – We have learned about your experiments on how the human body adapts to conditions in space. How will the research improve our quality of life on Earth?

7. Robert, aged 13 – Taking into account Einstein’s theory of relativity, do you think you are ageing slower because you are travelling faster then the Earth?

8. Ben, aged 11 – I often stare into the inky blackness of space and wonder.. if the universe is expanding, then what is it expanding into? Has your time in space given you any insight?

9. Robbie, aged 14 – Is the sunrise more spectacular from your perspective?

10. Emily, aged 13 – After 6 years of training to be an astronaut, I bet it’s all been worth it. The experiments you are doing are amazing, but did you ever struggle with Science at school? What would you say to anyone that finds it difficult?

11. Josh, aged 12 – How do you get your air in space? Do you bring it up in tanks, or do you make it in the space station, if so, how? Also, do you have a special ‘space mixture’ of air or is it the same as we have on earth?

12. Tristan, aged 12 – Do you and the other astronauts onboard control the space station, or is it controlled from Earth?

13. Katie, aged 12 – Research shows that your sleeping position can affect the kind of dreams that you have. Have you noticed any difference in your sleep patterns or dreams during your time in space?

14. Chloe, aged 12 – I am reading ‘The Astronaut’s Handbook’ at the moment, which is fascinating. If you could take one thing into space to make life more comfortable, or easier, what would it be?

15. James, aged 12 – We have enjoyed listening to your music choices on ‘Space Rocks’ – what is your all-time favourite song to listen to in space?

16. Jessica, aged 12 – How do you keep the temperature constant inside the space station?

17. James, aged 12 – What would happen to a goldfish if you took it up to the ISS? Would it just float around in a bubble of water?

18. Josh, aged 12 – Do you have a special ‘space mixture’ of air or is it the same as we have on earth?

19. Freddie, aged 12 – How will your research on the ISS help us return people to the moon?

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!

 

25 April 2016

Tim Peake Heard On The Space Station 25/04/2016 (Yaesu FT-857D)




... and the same contact heard on my Wouxun KG-UV9D which was connected to a second antenna....

Reminder: Tim Peake Today (25/04/2016)


Just a quick reminder that you should be able to hear Tim Peake talking from the International Space Station at 13:02 BST (12:02 GMT) today on 145.800MHz as he makes contact with another school in the UK.


23 April 2016

Tim Peake Heard On The Space Station 23/04/2016 (Yaesu FT-857D)



Sounds like Tim Peake had a few problems making contact this time, with the school having to change frequencies a few times before contact was made.

20 April 2016

Another Tim Peake School Contact Announced!


A further planned school contact has been announced:

"The ARISS UK Operations team are delighted to announce that the ARISS Schools contact between The Derby High School in Bury has now been confirmed for Monday 25th April 2016 at 1202UTC  (that’s 1302 BST/local time!) with Tim Peake on the International Space Station"

...and of course don't forget that Tim is scheduled to contact Wellesley House School in Broadstairs Kent on Saturday 23rd April 2016 at 1210UTC (that’s 1310 BST/local time!)

12 April 2016

Wouxun KG-UV9D Now In Stock @ MLS


Just a heads-up for those of you who like myself have been waiting for some time to get their hands on this handheld, Martin Lynch & Sons now have them in stock.

Priced at £109.99 for the standard handset or £149.95 for the PROPACK which includes a load of accessories.

Radio: LINK
Propack: LINK



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 April 2016

New Radio - Alinco DR-735E



Seen on Nevada's website (LINK)

New Dual Band VHF/UHF Mobile with remote head facility - arriving end of April

Full Duplex
Cross Band repeater function
Extended RX 108 - 174 MHz, 400 - 479 MHz 
Large Display with "rainbow" of colour options
1,000 Memories
Scan facility
Power 50/20/5w output
Computer programmable with free downloadable software
Internal duplexer allows single antenna socket for Dual Band antennas

lots lots more!

PRICE: £269.95