Abstract: A bandpass filter is provided that includes a ladder filter circuit with at least one shunt transversely-excited film bulk acoustic resonators (XBAR) and at least one series XBAR. Each of the XBARs includes a diaphragm having an LN-equivalent thickness greater than or equal to 360 nm, and each of the XBARs includes a diaphragm having an LN-equivalent thickness less than or equal to 375 nm.

Abstract: A communications system includes a satellite hub, a remote satellite terminal, and a satellite configured to provide communications therebetween. The remote terminal includes a controller that functions as an enforcement mechanism when adjusting antenna polarization on the remote satellite terminal to facilitate communications with the satellite. The satellite transmits an acquisition signal at a first satellite polarization angle, and a jamming signal at a second satellite polarization angle different from the first satellite polarization angle. If the polarization is not set correctly, then the jamming signal is not filtered by a narrow width null of the receive gain pattern at the remote satellite terminal, and the controller inhibits transmission. This forces an installer to correctly set the polarization of the antenna at the remote satellite terminal.

Abstract: A communications system includes a satellite hub, a remote satellite terminal, and a satellite configured to provide communications therebetween. The remote terminal includes a controller that functions as an enforcement mechanism when adjusting antenna polarization on the remote satellite terminal to facilitate communications with the satellite. The satellite transmits an acquisition signal at a first satellite polarization angle, and a jamming signal at a second satellite polarization angle different from the first satellite polarization angle. If the polarization is not set correctly, then the jamming signal is not filtered by a narrow width null of the receive gain pattern at the remote satellite terminal, and the controller inhibits transmission. This forces an installer to correctly set the polarization of the antenna at the remote satellite terminal.

Abstract: A device for bleeding a hydraulic system having a master cylinder connected by a hydraulic line to at least one slave cylinder having a bleed fitting valve, comprises a container holding a pressurized supply of hydraulic fluid, a valve operable to selectively release the pressurized supply of hydraulic fluid through an opening in the container, and a tube having a first end connected to the opening of the container and a second end adapted to be connected to the bleed the fitting valve. Upon operation of the valve, the hydraulic fluid exits the container through the opening, travels through the tube to the bleed fitting valve, and travels through the slave cylinder to the hydraulic line to push air out through the master cylinder and reverse bleed the hydraulic system.

Abstract: A hand rest device having a horizontally oriented base and a hand rest surface supported above the base by a hole and peg arrangement. The peg, hole or both may be skewed from normal so as to allow the hand rest surface to vary its attitude by rotation of the rest about the base. The base is attached to a data entry device such as an electronic mouse or keyboard by a strap of adjustable length so that the space between the entry device and the hand rest device may be varied.