Amateur radio Market’s only Mono-band Band Pass Filter with a by-pass feature. TACTICAL RADIO GEAR, LLC. Amateur Radio, Military HF, Commercial HF, and Marine Communications systems. Our BPF-200 Filter with By-Pass feature, is the only mono-band, band-pass filter product currently on the market. Tactical Radio Gear, BPF-200/BP model filters, are designed for use with 100W/200W PEP transceivers. There are frustrating problems with mono-band filters. The principal one, is the requirement to take it out of line, if a different band/frequency is to be used. The second, and maybe the most significant, is changing bands, and forgetting that the filter is still in line. Depending on the radio, this situation has the potential to cause serious problems, maybe even damage to the filter or radio or both? DO NOT use a transceiver Auto Tuner into any bandpass filter, a risk of high current and/or high-voltage will damage the filter. CAUTION: Do not transmit on another band, other than the one that is listed on the filter! This can potentially damage both the radio and the filter! Consider using our PROTEKTOR Band Pass filter By-Pass product, in-order to conveniently take the filter out of line, without having to disconnect coax cables and filter. We have searched to no avail, for a low-cost/reasonably priced product, that would permit a filter to be switched out of line when not in use? We found nothing at any price, which solves this problem! Thus the BPF-200 with by-pass was created; eliminating all the above problems. BPF-200 with By-Pass System Includes. A [3′] control cable from the remote by-pass switch, to the Band Pass filter; with an LED indicator to show when the filter is in-line. The control box is small enough to be conveniently placed next to the radio and/or operating position. 1″ W x 1″ H x 2 L. A [10′] DC power cable with a standard 2.1mm plug, for connection to a 12 volt power source is included. An optional DC power supply/Wall-Wort is available. 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, which effectively eliminates noise and interfering signals. Simply place the filter in-line between the transceiver, antenna or an amplifier. 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. The Tactical Radio, BPF-200 series filter design, is based on a 3-pole filter configuration(s), that maintains a 50 Ohm impedance, and low insertion loss. Our BPF-200 filter designs are not at DC ground as some band pass filters are! DC grounded input/output filters, preclude the use of a bias-t control voltage; without inserting a DC block in line! These HF Transmit/receive Bandpass Filters, are extremely high-quality, and precisely designed to limit the RF bandpass to a single Amateur band. Hi-Q Precision Silver Mica capacitors, and heavy-duty inductors, are used in the L/C tuned circuits. Each filter is individually tuned on a state of the art computer testing system. VSWR & POWER CONSIDERATIONS. Hi VSWR will generate damaging RF voltages, and currents in a bandpass filter. VSWR is a reality that we have to be attentive to; and Tactical radio gear has made every effort to protect the filter components from these potentially damaging forces. These designs are over-engineered, with vigilant consideration to component selection. No expense was spared to insure the reliability and performance of our filters. The weak-link in most Bandpass filters; at these power levels, in a high VSWR condition, are the capacitors. Tactical Radio Gear, uses High-Frequency, High-Power, High-Voltage, Silver Mica capacitors; ideal for use where multilayer ceramic caps are not recommended because of cracking. The natural mica dielectric retains it’s extremely high-Q to many megahertz; and is free from thermal cracking. Silver Mica capacitors are Ideal for tuned L/C Circuits & High RF current. All the inductors in our filters are wound with the largest possible gauge wire, consistent with sensible design practices. Depending on the band, the toroid cores when used, are selected for the largest gauge wire, and minimum turns, to minimize IR losses/heating. SSB speech (50% duty), CW average power is roughly equivalent to speech. BPF-200/BP BAND PASS FILTER WITH BY-PASS FEATURE. The design is conservatively rated at 200W into a 50 ohm load. Dielectric strength between contact and coil 1250Vrms. Surge withstand between all contacts 1050V. 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 & 2 meters. All models are supplied with UHF Female/SO-239 connectors; N-connectors can be substituted. Enclosure: Extruded aluminum Height (in): 1.500 in. Width (in): 2.000 in. Depth (in): 4.500 in. This item is in the category “Consumer Electronics\Radio Communication\Ham, Amateur Radio\Other Ham Radio Equipment”. The seller is “mouse10251945″ and is located in this country: US. This item can be shipped to United States.
- Band: 20M
- To Fit: Ham Radio Amplifier, Ham Radio Receiver, Ham Radio Transceiver, Ham Radio Transmitter
- Pickup Pattern: 5416140973
- Country/Region of Manufacture: United States
- Compatible Brand: ALL HF RADIOS
- Type: HF BAND PASS FILTER
- Features: UNIQUE BY-PASS FEATURE
- Item Weight: Lincoln City
- Brand: TACTICAL RADIO GEAR