SRD860 - "could" be legal for voice in the UK ?? (500mW??)

[bigbloke]

Interesting that Wimo (www.wimo.de) are now selling SRD860 capable antennas
under the guise of RFID antennas

some sector panels (linear / circular polarisation), a mobile magmount and a base antenna

cant link directly due to the site structure

regards

BB

[RogerD]

Within the licence exempt cordless mic / headphone band is 864.8-865MHz which is used for 50kHz narrow band voice devices with analogue speech allowed at 100% duty cycle to a maximum of 500mW.

Have you got a link for that please? I can't find this online - a previous link of http://www.atcb.com/publicdocs/New-CEPT ... cument.pdf doesn't work for me now. I'd like to know more about your 8 channels -

* 864.81250
* 864.83750
* 864.86250
* 864.88750 suggested calling
* 864.91250
* 864.93750
* 864.96250
* 864.98750

Topic Recap, while trying to get this part of the bands understood by my limited braincells that find 8xx.xxxx frequencies confusing for some reason -
863-870 is allocated to Short Range Devices. An Ofcom pdf ( binaries/consultations/tlc/annexes/Final_report.pdf ) gives a good summary of how the band is used, divided into three bands - 2, 3 and 2 MHz wide :-

Low Band 863-865
Wireless microphones
Wireless audio
Assistive listening
devices

Mid Band 865-868
Manufacturing and
distribution
Individual item tagging
Asset tracking

High Band 868-870
(used by the Alan 860 walkies at 868.00625 - 869.99375 - wrongly specified as from 860.00625 all over the web!)
Fire alarm systems
Intruder alarm systems
Home/Office automation
Access control
Remote controllers
Medical
Social alarms/Telecare
Smart meters
Telemetry
Automotive

Neighbouring bands, to put it into context :-

846-854 ch 68 Highest UK TV channel (8MHz wide)
854-862 ch 69 Top of Broadcast band, was only used for mics etc
862-870 another 8MHz wide segment, could be thought of as ch70 with 862-863 reserved for emergency use (in common with other Euro countries), leaving 7MHZ at 863-870 for SRD
870-and-up Mobile segment likely to be paired with Base use 45MHz higher - GSM etc

Other relevant threads here :-

Establishing future 860MHz channels
http://www.transmission1.co.uk/forum/vi ... 44&t=14877

SRD860 Radios?
http://www.transmission1.co.uk/forum/vi ... =4&t=20760

860MHz SRD
http://www.transmission1.co.uk/forum/vi ... =4&t=15507

Alan 860 Power Output
http://www.transmission1.co.uk/forum/vi ... =4&t=21028

934 Mhz Super Set up
http://www.transmission1.co.uk/forum/vi ... 4&start=15

Dutch use of this 35cm area for pirate DX broadcasting
http://www.transmission1.co.uk/forum/vi ... =28&t=9089

[wind in the antenna]

I'm not sure if this CEPT 70-03 document is entirely the one I drew these channels from, there were a couple of Ofcom ones I was looking at the time too.
http://acbcert.com/documents/misc-docs/ ... cument.pdf

[wind in the antenna]

Annex 13 Wireless Audio Applications
Scope of Annex
This annex covers frequency bands and regulatory as well as informative parameters recommended for applications for wireless audio systems including the following,
cordless laudspeakers; cordless headphones; cordless headphones for portable use, for example portable CD, cassette or radio devices carried on a person; cordless
headphones for use in a vehicle, for example for use with a radio or mobile telephone etc; in-ear monitoring, for use with concerts or other stage productions.
Regulatory parameters related toAnnex 13
Frequency Band Power Duty cycle Channel spacing ECC/ERC Decs Notes
a 863-865 MHz 10 mW e.r.p. up to 100% No spacing ERC DEC (01)18 In case of analogue systems the max
occupied bandwidth should not exceed 300 kHz
b 864.8 - 865 MHz 10 mW e.r.p. up to 100% 50 kHz Narrow band analogue voice devices
Additional Information
Harmonised Standards
EN 301 357 subband a)
EN 300 220 subband b)
Frequency issues
Narrow band analogue voice devices, such as baby voice monitors, door entry systems etc should only use the band b) 864.8-865 MHz

[RogerD]

Thanks - am I being thick? I can't see any 500mW reference

864.8-865 being used for Baby Alarms could make you less than popular for DXing there

[wind in the antenna]

You're certainly not being thick Roger. I think I may have confused the 500mW erp max with another exemption class but certainly 10mW is allowed there for voice. I was looking at another later document at the time which I hope to be able to dig out.
I don't have any empirical evidence of current usage of the 864.8 - 865 MHz band and nothing to suggest that any baby monitors or similar equipment using that band are currently in the marketplace.

[RogerD]

Ta, I shall sit back and wait to see what happens with your band
Any chance of getting more of those Vertex radios of yours out there into the hands of enthusiasts?

[bigbloke]

I was looking at the time too.
http://acbcert.com/documents/misc-docs/ ... cument.pdf

Had a right old giggle at that Doc!

457KHz - Avalanche victims - The Netherlands - Not Applicable

Never afraid to state the "bleedin' obvious"

Regards

BB

[Ramjet555]

Can anyone tell me when I can buy a pair of these radios?
Are they legal in the UK?

Are there any other walkie talkies that do the 863 mhz ABCD bands?

I'd really appreciate a link to any site that sells them.

Thanks

Ramjet

[mayhemicmayhem]

Yes they are legal in the UK, I emailed Ofcom and asked them. The only sets for this band which are legal which I know of are currently the Alan 860 and Alinco DJS800 (which seems to be sold in Italy, the instruction book is in Italian). There is a company called Orbito (in Luxembourg) which can be found on the web advertising the Alan 860.

[No Rest]

Yes they are legal in the UK, I emailed Ofcom and asked them. The only sets for this band which are legal which I know of are currently the Alan 860 and Alinco DJS800 (which seems to be sold in Italy, the instruction book is in Italian). There is a company called Orbito (in Luxembourg) which can be found on the web advertising the Alan 860.

Here is the translation for the Alinco manual:

http://translate.google.co.uk/translate ... md%3Dimvns

[bigbloke]

heres one on the bay .....


http://www.ebay.co.uk/itm/Alinco-DJ-S80 ... 0603941417

Regards

BB

[No Rest]

heres one on the bay .....


http://www.ebay.co.uk/itm/Alinco-DJ-S80 ... 0603941417

Regards

BB

Sadly only availble in Italy Bit expesvie for one radio!

[bigbloke]

oops! a good point well made <blush>

still...proves theyre out there ...somewhere

and proves italian ebay may be a good hunting ground

moreover though - it proves how much stuff is out there but gets
filtered so its almost impossible to find on ebay uk

was looking for something for 5 years , went to ebay.sg (singapore) and there
were hundreds available!


"ciao!"

BB

[Dagnabbit]

I wonder why the Alinco only has 2 of the 5 bands?
http://www.elettronicazetabi.it/shop/rt ... djs800.htm

Seems strange, if the Alan one has all 5.