T-MARC

The Mid-Atlantic Repeater Council

The demand for UHF repeaters continues to grow. As such, finding available pairs is becoming more and more difficult. The current bandplan calls for 442/447, 443/448, & 444/449 to be used for repeater pairs. The TMARC Board of Directors would like to propose the use of 441/446 for repeater usage. Currently, only links and control frequencies are utilized in that segment. With this proposal, those presently coordinated links and control  frequencies would continue to be protected, but would make use of available frequency pairs for repeaters. No new links or control frequencies would be coordinated in that segment. The coordinating groups that surround us all use 441/446 for repeaters now.

 

The current 420-450 MHz bandplan looks like this:

420.00-426.00       ATV repeater or simplex with 421.25 MHz video carrier, control links and                                      experimental

426.00-432.00       ATV simplex with 427.250-MHz video carrier frequency

432.00-432.07       EME (Earth-Moon-Earth)

432.07-432.10       Weak-signal CW

432.10                      70-cm calling frequency

432.10-432.30       Mixed-mode and weak-signal work

432.30-432.40       Propagation beacons

432.40-433.00       Mixed-mode and weak-signal work

433.00-435.00       Auxiliary/repeater links

435.00-438.00       Satellite only (internationally)

438.00-444.00       ATV repeater input with 439.250-MHz video carrier frequency and repeater                                   links

442.00-445.00       Repeater inputs and outputs (local option)

445.00-447.00       Shared by auxiliary and control links, repeaters and simplex (local option)

446.00                      National simplex frequency

447.00-450.00       Repeater inputs and outputs (local option)

 

The proposed 420-450 MHZ bandplan would look like this:

420.00-426.00       ATV repeater or simplex with 421.25 MHz video carrier, control links and                                      experimental

426.00-432.00       ATV simplex with 427.250-MHz video carrier frequency

432.00-432.07       EME (Earth-Moon-Earth)

432.07-432.10       Weak-signal CW

432.10                      70-cm calling frequency

432.10-432.30       Mixed-mode and weak-signal work

432.30-432.40       Propagation beacons

432.40-433.00       Mixed-mode and weak-signal work

433.00-435.00       Auxiliary/repeater links

435.00-438.00       Satellite only (internationally)

438.00-444.00       ATV repeater input with 439.250-MHz video carrier frequency and repeater                                   links

441.10-442.00       Repeater inputs and outputs – local option (No new link or control, current                                     link and control grandfathered)

442.00-445.00       Repeater inputs and outputs (local option)

445.00-446.10       Shared by auxiliary and control links, repeaters and simplex (local option)

446.00                      National simplex frequency

446.10-447.00       Repeater inputs and outputs – local option (No new link or control, current                                     link and control grandfathered)

447.00-450.00       Repeater inputs and outputs (local option)

 

This proposal will be voted on at our October 2017 membership meeting. Questions or comments welcomed.

TMARC News

Page Last Updated: 9/5/17

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