27-Sep-03
Internet Linking - Some Questions Answered

DCC has recently received a number of questions regarding licensing policies and the future of internet voice gateways in the UK. Here are those questions, and the answers to them from a DCC perspective.
  1. Can anyone explain what on earth has the Echolink validation process got to do with the online NOV application process.

    For all the DCC knows, the applicant may not even want to use Echolink, but may want to use their NOV for eQSO, Wires, or IRLP instead.

    It is not necessary to stipulate which system one wants to use when applying for an NOV.


    As is now common knowledge, DCC had what it believed (and RA agreed) were some quite legitimate concerns around the validation process which was in place for Echolink. Given that there is currently no necessity to specify which software will be employed, DCC had no means of knowing whether further problems were likely to be encountered.

    Attempting to be fair and even handed - especially since DCC has NO desire to mandate the use of any particular software package over another - the online application system was withdrawn while clarification from the Echolink team was sought. Since that clarification has now been provided by K1RFD is has been possible to re-enable the online NoV application process, effective 08:00 BST 26th September 2003


  2. Would you please let me know why, as the Primary user of the 144 - 146 MHz bands we are unable to obtain authorisation from the RA for licensing of Internet Gateways on already approved frequencies in this band, regardless of individual station requirements and circumstances.

    Surely, as the 'primary user' of the band, it is down to the RSGB frequency coordination and radio amatuers themselves to decide on suitability of the continued use of these frequencies according to individual station requirements and circumstances.

    Thus far the blanket suspension of NoV's in this band has been particularily unfair to rural areas of scattered population where 70cm does not provide adequate coverage, and there is too limited use of 6m and 4m to make a service for mobile use practical.


    As has been stated many times previously (although perhaps not in quite so public a forum) this is simply an RA policy decision, and not one which they were minded to reverse or review further when they were last asked to do so by DCC (at 1st September 2003 review meeting).

    It is important to remember that irrespective of our status in that band or any recommendations made by RSGB, it remains RA's prerogative as to whether they will issue (or permit RSGB to issue) NoV's for any particular purpose and on any particular frequency.
    While DCC shares the frustrations of those who are keen to make use of frequencies in this band we are also aware of RA's concerns, which are based upon the quantity of "interference" complaints they have received from other (amateur) users of the band.

    Essentially, these have been due to the apparent inability of some gateway operators to correctly adjust their transmitter deviation to an absolute maximum of 2.5 kHz peak, and the refusal by some other band users to acknowledge that (in IARU Region 1) the 2M band has been "12.5 kHz spec" since agreements made at the 1996 Tel Aviv conference were enacted in 1997.

    Experience has shown that better results for simplex gateways (and therefore better "service") can be obtained with smaller footprints and more gateways, and this is directly due to the absence of "busy channel marking". It can be shown, drawing on both historical and contemporary experience from the "traditional" voice repeater network that large service areas are counterproductive.

    With the current high availability of equipment for 50 MHz, gateway sysops should in - at least for the short term - give very serious consideration to this currently under used band.


  3. What is the actual 'reason' for the suspension of issuing of licences for any repeater or node in the 430 - 440 MHz band thus preventing further experimentation with dedicated internet linked UHF repeaters. ?

    This is a requirement of the Primary User, and since their use of the spectrum is directly related to matters of national security they are (probably quite correctly) not minded to share their precise reasons with us.

    Their decision affects the installation of any unattended transmitter within the 300 - 500 MHz region; RA local offices can not currently issue licenses to business users in this band without recourse to special clearance procedures.

    It is important to note that the restrictions (thus far) have been placed only on unattended installations, and there is nothing currently which will prevent experimentation on an attended basis, using the frequencies already designated for this purpose.


  4. Why are the current findings of the Internet Linking Review that we need some fairly obvious information for the review ? Surely, obtaining this information was the purpose of the review in the first place, so are we still at square one ? What has the review done or acheived to date ?.

    These answers we'd rather read at the DCC website than the existing bulletin which says basically nothing.


    The danger with any response to the above, at this stage of the proceedings, is that is may be misunderstood. As has been stated previously elsewhere, the review was commissioned by RA who engaged an independent consultantancy to review the various submissions and present their conclusions.

    It is not currently appropriate to discuss this in detail, but it should suffice - for the time being - for the reader to understand that the actions of the Primary User have shed a somewhat different light on matters.

    RA has some quite legitimate concerns - shared by RSGB (and DCC in particular) - around the potential impact on other (amateur) band users, both in the UK and other IARU Region 1 member societies.

    In answer to the final point: the review appears to have served to convice RA that, at the very least, the experiment should be allowed to continue for the time being. We are given to understand that RA will shortly be publishing the document (on their website) produced by their consultant.
If you have comments regarding the above, or require further information, please click here to EMail the undersigned.

Iain Philipps, G0RDI
Chairman, RSGB Data Communications Committee

This page last updated: 27-Sep-03

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