Note
QST, Feb 1979, p. 133.
QST, Jul 1980, p. 123. (only AB-144)
The AB-144 All-Bander from Clegg Communications up-converted frequencies from 100 kHz-30 MHz to the 2 meter band. Owners of multi-mode 2 meter transceivers or receivers could use them to receive the LF/HF spectrum. The model MB-28-9 All-Bander gave ham-band-only receivers or transceivers continuous coverage of 100 kHz-18 MHz. Neither All-Bander had transmit capability.
References
Review. QST, Oct 1980, p. 44.