Transmission1

afternoon... now excuse my ignorance i cant for the life of me remember if HMP Cardiff or Prescoed now use Tetra? or DMR? can anyone shed some light?

Most likely DMR dont think many Prisons use Tetra Airwave unless they are doing prisoner transport.

Not sure about Cardiff: there are some Prisons in Bristol, Bedford and Manchester areas that are on TETRA. I think these guys provided them: http://www.pmr-products.com/ They tend to be 450-453Mhz band.

The many local to me are all TETRA now. I doubt DMR would be of use to them here when they have access to TETRA set ups.

73 Steve

Yes looks like PMR-Products have the contract for HMP untill November 2015 providing a DMR network called SafetyNet.
DMR is much cheaper than Tetra Airwave so makes sense they only need a Airwave terminal when moving a high security prisoner so they can contact police escort/back up.

More here: http://www.pmr-products.com/PMR-Product ... l-DMR.html

ah ok so this will probably be encrypted? im sure i have the PMR products WTR frequencies somewhere! do you have the latest ones? and i was certain Cardiff used tetra but yep makes sense about costings etc so DMR!... hmm i need to do a rec! and have a look for myself! thanks for all the info guys!! i will post back my findings!

welshevo wrote:im sure i have the PMR products WTR frequencies somewhere! do you have the latest ones?

Erm... here? http://spectruminfo.ofcom.org.uk/spectrumInfo/licences

thelad wrote:Yes looks like PMR-Products have the contract for HMP untill November 2015 providing a DMR network called SafetyNet.
DMR is much cheaper than Tetra Airwave so makes sense they only need a Airwave terminal when moving a high security prisoner so they can contact police escort/back up.

More here: http://www.pmr-products.com/PMR-Product ... l-DMR.html

Strange, all 3 here which are local to me are Tetra. Must have got 'um cheap before they swap to 4G under CC/Aquiva.

YMMV

73 Steve

The few prisons in Kent that I've worked in are using Tetra. Just because it's Tetra it doesn't mean it's Airwave remember. They are around 450MHz IIRC. They use Rohill Nodes & Sepura handsets.

I live very close to prescoed prision any updates on what they using im thinking tetra??? But looking on my sdr I do have a encrypted frequencies round 456 so not sure ?anybody know and Cardiff hmp

cardiff have a 2 frequency TETRA system- mix of clear and encrypted

Usk Borstal has TETRA

Prescoed - no idea but probably works on Usk's system

all in the old 450-453 band