Availability
Elite DXing and Contesting Devices
VA6AM Engineering HF Band-Pass Filters
VA6AM Engineering HF Band-Pass Filters are very high-quality multi-stage inline passive electronic devices designed to specifically limit the transmitting and receiving RF passband to a single Amateur band. They provide the clear benefit of a dramatically lower noise floor for enhanced single-band weak signal reception that is desired by DXers, elite contesting stations and Field Day operations. Used individually on mono-band radio and antenna combinations, these filters provide the isolation required, eliminating image and harmonic RF interference issues for dedicated mono-band operations in multi-radio contesting environments. Required for use with transmit multiplexers, these filters provide the additional isolation needed to allow multiple transceivers to be operated on different bands simultaneously on the same antenna.
( 8 )
$235.99
Sierra Radio Systems General Purpose Input/Output (I/O) Modules
Sierra Radio Systems General Purpose Input/Output (I/O) Modules are the heart of the Station Controller system allowing the user to turn station power on and off, control power to ancillary devices, measure voltages and equipment temperatures. Featuring a total of 18 I/O channels to control and monitor a variety of items within the shack. The various I/O includes: • 4x 0-50 Vdc volt meters, ground referenced. • 4x SPST Built-in relays capable of switching up to 2A • 4x Open collector outputs for external 12 volt relays or 'Pull to ground" activated devices. • 4x Optoisolated digital inputs for door alarms, band decoders, etc. • 2x Digital Temperature probes, available on 3 ft. and 6 ft. cables
Not Yet Reviewed
$230.00
Sierra Radio Systems Raspberry Pi Host Adaptors
Sierra Radio Systems Raspberry Pi Host Adaptors are the brain of the station controller system. Featuring a Raspberry Pi™ 3 running the Node Red Station Controller flow, simply plug your modules into the RJ45 ports on the controller board, apply power to any board and the system is ready to go. Power is supplied by attaching power to either the power pole connection or the 2.5mm plug and power can be applied to any board in the system. Three RJ45 jacks provide connection and power to the other modules in the system, and you can add modules as you need them. There is an optional Heltec v3 LoRa radio module to be able to control over the air, but this is not a requirement for full station control operation. The SIR-310 comes with: • The Raspberry Pi Adaptor board with built-in power supply and DCN hub • Raspberry Pi 3 single board computer • SD card with the latest operating system and Node Red Station Controller flow NOTE: At least one module is required for the Raspberry Pi Host Adaptor to be able to control devices in the shack.
Not Yet Reviewed
$230.00
Sierra Radio Systems RF Watt Meter Modules
Sierra Radio Systems RF Watt Meter Modules are an addition to the Station Controller Modules. The module, in conjunction with 1 or 2 active RF power monitoring sensors, provides multiple modes of measurement. Using the Node Red Station Controller Workflow the user can select between periodic measurements, streaming data (with less than 1 second of refresh), and remote repeater keying. Using any combination of the HF-1, LP-1 and UHF-1 RF sensors, which are supplied by WaveNode, the module will provide RF sampling up to the power level of the specific sensor. NOTE: This module requires at least one RF sensor that are supplied by WaveNode. These can be purchased directly from WaveNode at https://wavenodedevelop.com
Not Yet Reviewed
$230.00
RF Meca 200W Transmit Band Pass Filters
RF Meca 200W Transmit Band Pass Filters are perfect for contesting at low power and for DXpeditions when multiband antennas are used. These high-quality bandpass filters, from the French manufacturer RF Meca, feature an HF-tight sheet metal housing to maintain optimal functionality and signal integrity. Advantages of RF Meca Bandpass Filters. Reduction of Interference: Band pass filters block unwanted signals outside the target frequency band, minimizing interference from adjacent frequencies and improving signal quality. Improved Signal-to-Noise Ratio (SNR): By suppressing noise and interference outside the desired frequency range, band pass filters enhance the SNR. This makes it easier for the receiver to detect weak signals in the target frequency band, effectively increasing the system's sensitivity. Avoiding Overload: Strong signals outside the target band can overload the receiver and cause distortion. Band pass filters prevent this by allowing only the desired frequency band to pass through. Avoidance of Harmonic Interference: Band pass filters help suppress harmonic and other non-linear distortions that could radiate into neighboring bands.
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$239.99
Sierra Radio Systems Remote Coax Switches
The Sierra Radio Systems Remote Coax Switches are designed for ease of remotely switching the antennas using the Node Red Station Controller Flow. Designed for a maximum power rating of 100 watts, and covering the 1 to 60 MHz frequency range, the insertion loss on the HF bands is less than .05 dB and port isolation is between 53 and 65 dB across the HF Band. Latching relays will maintain the position of the switch if power is removed from the module. When the module switches the antenna, it releases the current connection prior to making the new connection. Built in firmware prevents any two relays from being active at the same time and all relays could be put in a disconnected state. A terminal block at the top of the module provides 4 momentary pull to ground inputs to allow external pushbutton control or electronic switching to select the active antenna. Two modules may be connected via the common port, allowing for a 4 x 4 switching arrangement where any one of 4 antennas could be connected to any one of 4 radios. Additional Feature and Specifications: Max power limit: 100W Frequency range: 1-60 MHz
Not Yet Reviewed
$230.00
Paradan Radio Dual Operator Controllers
Paradan Radio Dual Operator Controllers are exciting devices that enable two operators to use one transceiver to independently make contacts and listen. This audio, microphone, and PTT controller is perfect for two-person portable operations like POTA or SOTA, as well as tandem operating during events such as Field Day or radio contests. This controller is exactly what hams need for one-on-one training of new operators, for any type of operation including casual, DXing and contesting! This is a perfect way for parents, grandparents, siblings and friends to share their love of our great hobby and to get others on the air! The Dual Operator Controller is appropriately designed for each operator to wear their own personal headset and to use their designated footswitch. Both operators hear the transceiver audio until Operator 1 depresses their footswitch. Then their respective LED illuminates, the audio is muted to their headphones, their headset microphone is connected and the radio keys to transmit. As Operator 1 completes the contact (QSO), Operator 2 can hear the QSO via the radio monitor audio and either operator can perform the logging function for the QSO. When Operator 1 releases their footswitch, Operator 2 can depress their footswitch, their LED lights and everything connects in order for them to make a QSO on the same transceiver, while Operator 1 listens. Of course, either operator can perform logging tasks, or each can do their own logging. The dual footswitch PTT of the Dual Operator Controller functions on a "first come, first served" basis. Either operator can key the transceiver and talk, just not both at the same time. No computer or software is required or connects to the Paradan Radio Dual Operator Controller. This device provides a simple and straightforward way to connect mic, headphones and PTT for "2OSR" - Two Operator - Single Radio fun! The Paradan Radio Dual Operator Controller set includes the controller, two footswitches, one brand and connector specific radio interface cable (8-pin Round or 8-pin Modular RJ45; Icom or Yaesu), a 3.5mm male audio patch cable and 6.35mm adapter, and a power cable for 10-15VDC. Order the unit that corresponds to the correct mic cable for your transceiver. Internal jumpers can be set to configure the unit mic input for either dynamic or electret on both microphone elements. This controller works with Amateur headsets that have an attached boom microphone, and consumer headsets referred to as "computer or gaming" headsets. Paradan Radio Dual Operator Controller Specifications: * Power: 10-15 Volts DC * Power Input Connector: 2.1mm * Footswitch Connector: 1/4 inch (6.35mm) female * Headphone and Audio Connectors: 1/8 inch (3.5mm) female stereo * Headset Microphone Connectors: 1/8 inch (3.5mm) female stereo (accepts mono plug) * Radio Microphone Adapter Cable: 8-pin Round or RJ-45, manufacturer dependent. * Audio Cable: 18 in. length, 1/8 in. (3.5mm) plugs, 1/8 in. to 1/4 in. adapter * Power Cable: 36 in. length, 2.1mm DC plug to Powerpoles * Dimensions, WHD: 4.75 x 1.50 x 2.50 in. (121 x 38 x 64mm) * Weight: 12 oz. (0.34 kg)
Not Yet Reviewed
$170.00