Bandpass filters are essential, in preventing receiver front end damage during multiple HF radio operation. Tactical Radio filters are available for all HF amateur bands, including 6 meters.
All models are supplied with UHF Female/SO-239 connectors; N-connectors can be substituted.
Designed to provide a roll-off outside each Amateur band; these filters bring the benefit of a dramatically lower noise floor; for improved single-band, weak signal reception; necessary for contest and Field Day operations; or simply crowded band conditions!
These compact HF Transmit/receive filters, accomplish out-of-band suppression that effectively eliminates noise and interfering signals. Simply place the filter in-line between transceiver, antenna or an amplifier.
Tactical Radio Gear, Band Pass Filters are high quality, multi-stage filters, designed to create a boundary, around a specific Amateur band. They will reject image, and harmonic interference problems, for mono-band operations in multi-radio situations.
Essential for transmit multiplexers,
these filters deliver the extra isolation, required to allow multiple radios to
operate on different bands at the same time, using the same antenna. Individually,
mono-band radio and antenna arrangements, the BPF series filters will deliver
the isolation essential for multi-radio stations.
If you are planning a
DXpedition, a contest, or simply need the enhanced performance that a bandpass
filter can provide, your radio needs these filters. Tactical Radio Gear,
filters are the most cost-effective, single band filters on the market. The
cutting-edge advantages, that these exceptional filters can provide; to improve
image, and intrusive harmonic problems, for mono-band, multi-radio contest
settings cannot be overstated. Tactical Radio Gear, filters are essential for
use with transmit multiplexers, as these filters will augment the separation
needed to tolerate multiple radios on different bands at the same time - on the
same antenna.
When used in combination with multiplexers; known as multi-band transmit combiners; it is essential for each multiplexer band to provide the additional isolation necessary to allow the operation of multiple transceivers; all transceivers in a particular situation, can operate in chorus, unhindered by the signals from radios operating on the other bands - or even on the same antenna. Transmit Band Pass Filters, after antennas, are recommended as the most important addition to the radio station
The Tactical Radio, series filters are
based on a 3-pole configuration(s), that maintain a 50 Ohm impedance, and low
insertion loss. These HF Transmit/receive Bandpass Filters, are of tremendously
high-quality, and precisely designed to limit the RF bandpass to a single
Amateur band.
Computer modeled in Spice, the design is L-section matching to the capacitive
coupled resonator; excellent for cascading without parasitic pass-bands. The
filters are symmetrical, thus the input and output are not critical.
Hi-Q Precision Silver Mica capacitors, and heavy-duty inductors, are used in the L/C tuned circuits. Frequencies harmonically related to the central frequency from upper & lower side are attenuated 30dB or more. Each filter is individually tuned on a state of the art VNA computer testing system.
SPECIFICATIONS
Insertion: Typical, <0.5
Rejection: Typical, >40db band-to-band
Power Handling: 50W pep
Impedance (ohms): 50Ω
Termination VSWR: <1.04
Enclosure: Extruded aluminum
Tactical Radio Gear, Corp., band pass filters are offered for all of the HF & VHF Amateur Bands, in power ranges from <50W to >5KW for commercial/military applications. Contained in extruded aluminum enclosures, some are available with fans
These
HF Transmit Band Pass Filters achieve out-of-band suppression that virtually
eliminates out of band noise and interfering signals. They are designed to
provide a sharp roll off just outside each Amateur band; they provide the benefit
of a dramatically lower noise floor for enhanced single-band weak signal
reception.