§ 27.1233   Reimbursement costs of transitioning.

   (a) Replacement downconverters. The proponent(s) must install at every
   eligible EBS receive site a downconverter designed to minimize the
   reception of signals from outside the MBS.

   (1) An EBS receive site is eligible to be replaced if:

   (i) A reception system was installed at that site on or before the date
   the EBS licensee receives its Pre-Transition Data Request (see
   § 27.1231(d));

   (ii) The reception system was installed by or at the direction of the
   EBS licensee;

   (iii) The reception system receives EBS programming under § 27.1203(b)
   and (c) or is located at a cable television system headend and the
   cable system relays educational or instructional programming for an EBS
   licensee; and

   (iv) It is within the licensee's 35-mile radius GSA.

   (2) Replacement downconverters must meet the following minimum
   technical requirements:

   (i) The downconverter's input frequency range (the “in-band
   frequencies”) must be 2572 MHz to 2614 MHz and output frequency range
   must be 294 MHz to 336 MHz;

   (ii) The downconversion process must not invert frequencies;

   (iii) The nominal gain of the downconverter must be 32 dB, or greater;

   (iv) The downconverter must include filtering prior to the first
   amplifier that attenuates frequencies below 2500 MHz and above 2705 MHz
   by at least 25 dB;

   (v) The downconverter must have an out-of-band input 3rd order
   intercept point (input IP3) of at least + 9 dBm, where out-of-band is
   defined as all frequencies below 2566 MHz and all frequencies above
   2620 MHz;

   (vi) The downconverter must have a typical noise figure of no greater
   than 3.5 dB and a worst case noise figure of no greater than 4.5 dB
   across all in-band frequencies and across its entire intended operating
   temperature range;

   (vii) The downconverter must not introduce a delta group delay of more
   than 20 nanoseconds for digital operations or 100 nanoseconds for
   analog operations over any individual six megahertz MBS channel.

   (b) Migration of Video Programming and Data Transmission Track. (1) The
   proponent(s) must provide, at its cost, to each EBS licensee that
   intends to continue downstream high-power, high-site educational video
   programming or data transmission services, with one programming track
   on the MBS channels for each EBS video or data transmission track the
   licensee is transmitting on a simultaneous basis before the transition.

   (i) To be eligible for migration, a program track must contain EBS
   programming that complies with § 27.1203 (b) and (c).

   (ii) The proponent(s) must pay only the costs of migrating programming
   tracks being transmitted on December 31, 2002 or within six months
   prior thereto.

   (2) The proponent(s) must migrate each eligible programming track to
   spectrum in the MBS that will be licensed to the affected licensee at
   the conclusion of the transition.

   (3) After the transition, the desired-to-undesired signal level ratio
   at each of the receive sites securing a replacement downconverter must
   satisfy the following criteria:

   (i) Cochannel D/U Ratio. (A) When the post-transition desired signal is
   transmitted using analog modulation, the actual cochannel D/U ratio
   measured at the output of the reception antenna must be at least the
   lesser of 45 dB or the actual pre-transmission D/U ratio less 1.5 dB.

   (B) When the post-transition desired signal will be transmitted using
   digital modulation, the actual cochannel D/U ratio measured at the
   output of the reception antenna must be at least the lesser of 32 dB or
   the pre-transition D/U ratio less 1.5 dB.

   (C) Where in implementing the Transition Plan, the proponent(s) deploys
   precise frequency offset in an analog system, the minimum cochannel D/U
   ratio is reduced to 38 dB, provided that the transmitters have or are
   upgraded pursuant to the Transition Plan to have the appropriate
   “plus,” “zero,” or “minus” 10,010 Hertz precision frequency offset with
   a ±3 Hertz (or better) stability.

   (ii) Adjacent Channel D/U Ratio. The actual adjacent channel D/U must
   equal or exceed the lesser of 0 dB or the actual pre-transmission D/U
   ratio. However, in the event that the receive site uses receivers or is
   upgraded by the proponent(s) as part of the Transition Plan to use
   receivers that can tolerate negative adjacent channel D/U ratios, the
   actual adjacent channel D/U ratio at such receive site must equal or
   exceed −10 dB. Provided that the receive site receiver is not upgraded
   and cannot tolerate −10 dB, the adjacent channel D/U ratio would be
   0dB.

   [ 69 FR 72034 , Dec. 10, 2004, as amended at  71 FR 35193 , June 19, 2006]

   return arrow Back to Top