Showing posts with label aerials. Show all posts
Showing posts with label aerials. Show all posts

Wednesday, 12 November 2014

THE HYTERA DMR PD365 A WELCOME SURPRISE

HYTERA DMR PD365 


My Hytera PD365

My Hytera PD365 & My mobile/cell phone


I WON 2 OF THEM


When you enter a competition for something that you normally could not afford to purchase, in my opinion you are always in with a chance of winning after all there's the old adage that you've got to be in it to win it.
Imagine my surprise after waking up one morning and reading all the congratulations from some of the people I know on Facebook as radio hams and friends . There in front of me was  the post telling the lucky people they had won and to check our e-mail, so I checked my e-mail and sure enough there was the confirmation that I had won and could I please supply my shipping address. Part of the deal to winning a pair of these radio's was to write a review using more than 2 pictures of the actual radios with no less than an 800 word count.
 So to work then  
Now lets have a look  at  the main features of this wonder of modern technology. Starting with its elegant design .The radio is pocket sized and easy to carry so those with a cell phone wont notice the weight of only 160 grams and the measurements are only 106 X 54 X 23 mm and that it is it .
I think my cell phone is heavier.The big advantage is the belt clipThe clear display from the 3 lines single colour LCD display is adequate. This will mean that  with the 1 touch feature your text messages of no longer than 64 characters can easily be read,there is a capability of using the predefined short text messaging that can be set up in the CPS. Purchasing the programming lead  is essential and is £25 

On the front there is the big rocking button that will help you to select menu's so you can navigate through and read or select them , it can also be used for voice calls .
The radio features a micro usb port so it can be charged with the most micro usb power supplies .Plugging it  into your computer's USB port will also charge it with a standard usb  lead used by most mobile phones.
The  Standard internal battery is rated at 2000mAh @3.7v  and should help users keep in contact for a long time.

In digital mode the battery operates for up to 12 hours using  a 5-5-90 cycle and in analogue mode about 10.
There are 4 programmable buttons on the front that can be used 
The range of frequencies are : 400-440 MHz/430-470MHz/446 Mhz with a Variable Output Power of 3W/1.5W and it has a 256 Channel Capacity. 

The radio is programmable via the usb port and anyone familiar with the hytera CPS will find it a doddle to set up. There is also the ability to use CTCSS/CDCSS  on the analoug frequencies  this will  prevent unwanted conversations on the same frequency added to the fact you can enable it to scan continuously on the analogue and digital channels .

With the  Analogue and  digital dual modes, using it  ensures a smooth analogue to digital migration. I see this radio in use mostly for covert or security operations so the fact that the optional speaker mics can be worn discreetly with a secure 2.5 mm socket  to ensure you don't loose contact along with a high quality speaker for clear audio from the set .

Word of mouth is a wonderful thing and when someone tells you that a thing is good you just have to try one out for yourself . I can tell you I am not disappointed and have been telling all I can just what a great little radio it is . Here are my findings.

After Receiving the radios from the courier, I went over to my friend 2E0STZ's  shack and we loaded a code plug for our local DMR Marc repeater network then programmed the radio's .


There are  three DMR Marc networked repeaters in our area.

1 GB7TP  Aire valley repeater group         439.6875

2 GB7TD  Five towns Repeater group       439.1625

3 GB7HX  West Yorkshire repeater group 439.5750

Standing in the garden of  the location that we were in we were able to open and operate them from the rear garden  of 2E0STZ,s location  and  I was able to open GB7HX which is 
approximately 13.7 miles away GB7TD is 12.5 miles away and we could operate that also. I used my radio whilst I was
 on a rest period I was able to talk to my friend 2E0STZ.
The belt clip supplied with the radio is a joy to use , it is so simple to connect  and disconnect the radio from it . There is a top tab that clicks into place when you have secured it properly into the clip and it just needs the twist of a finger to detach it .the belt clip itself fastens securely onto most of the belts I have tried, including a tool-belt that I use for work.

Being local to one of the repeaters (GB7TP) I am able to use the low power setting on the handset . I live in a block of flats and have a twin lift shaft to the right of my shack, and on high power I can open and operate an analoug repeater called GB3XL .The little handset continues to astound me on it's capabilities  Even if I hadn't won a pair of these wonderful little devices I would have purchased one  to try it for myself .

So to anyone that reads this go out and buy one , you won't be disappointed .And should you want to purchase one of these wonderful little bits of kit then please visit the HAM DMR website site and order it from Adam .PS tell him I sent you ;)  


HAM DMR WEBSITE








(c) m1pac productions 2014 

Saturday, 26 July 2014

RTL-SDR dongle's

Having fun with a dongle 

There are few things in this world that you can do on a budget. However the DVB Digital dongle is available on  amazon.co.uk  and on e-bay and most of them are capable of receiving from 24MHz to 1.4GHz . Now that PC 's and laptops have got good processing power,good sound cards and good graphics cards  it is now  possible to decode those invisible radio waves that are all around us , and to do that there are copious amounts of software out there to decode anything you can hear with a decent Arial, NOT I hasten to add  an antenna , with an Arial  you can receive on a wide band   like from say 28 to 30 MHz now that's a 2 meg band width  and is fine for listening, an antenna is tuned to transmit and receive on a very narrow band. Below is a screenshot of a program called HDSDR and it's quite an intuitive program easy  to use and easy to setup and gives you quite a nice display .




Tracking Aircraft

The fact that it can be used to  listen to  HF/VHF/UHF/SHF frequencies  is just icing on the cake.There are the ever popular RTL1090 that decodes the Mode -S from the aircraft, there is the very popular Plane Plotter, but you only have 21 days to use it  and this site here will help you to set it up.There is a program out there called adsbSCOPE and with it comes an alternative to RTL1090 ADSB# .I like that program  as its easy to set up and customize to your own liking  and below is a screen shot of mine. I don't recommend you take a laptop and dongle to the viewing gallery of any major airport as their security has a funny way of looking at it and could mean the confiscation of your equipment.



The location of my aerial and the receiver is in the town of Keighley and I am 8 floors up about 118 mtrs above sea level  the  I made the aerial with these plans here   and as you can see I was getting a lot of "hits".

Its not expensive and is quite interesting in an amateur radio kind of way ,and you don't need to be an amateur to understand how to set it up and operate it all. well I hope you like  this blog, please leave a comment .


(c) m1pac productions  2014