| CALLISTO frequency agile spectrometer. | Description | US$ |
|---|---|---|
 |
One Callisto frequency agile radio spectrometerin aluminum enclosure, tested in the laboratory. Qualification data here: Qualification Including RS-232 extension cable SUB-D9 1:1 ~1.5m Including RS-232/USB-adapter Including international power supply 12V with 4 different mains-connectors Software and tools free of charge: Software You may also ask for used, but refurbished and tested instruments Instrument weight including serial cable(s) and power adapter 1.2 kg, instrument net weight ~800 grams. Stock: 4 unit. |
520.00 |
| Upgrade and firmware update of old spectrometers, taking into account engineering change requests (ECR) and non-conformance reports (NCR). Replacement of out-dated EEPROM, improvement of IF-frequency selection (new quartz), general repair and finally qualification tests with access to results. |
75.00 |
| Low noise amplifier (LNA) for indoor applications. | Description | US$ |
|---|---|---|
 |
Low cost frontend containing low noise amplifier NF < 1.5dB, ~20 dB gain without limiter at the antenna input This frontend is an indoor version which requires extra protection from rain, snow etc. Including 2 extra dc-connectors to extend power supply cable DC-cable is NOT part of delivery because its length is not known. Including international power supply 12V with several connectors Instrument weight including power adapter ~0.39 kg, LNA net weight ~0.21 kg. Size: 110 mm x 60 mm x 30 mm including connectors. Stock: 1, Production on request. For replacement go to Mast-LNA or LNA2000. |
220.00 |
| Low noise amplifier for mounting on a mast (Mast-LNA). | Description | US$ |
|---|---|---|
 |
This frontend is designed for outdoor operation, close to the antenna. Frontend contains a low noise amplifier NF < 1dB, ~20 dB gain. Enclosure is made out of plastic. Including limiter at the antenna input for protection against static charges. Does not contain lightning protector to gain noise temperature. Including separate Bias-Tee to inject 12V dc. Power supply via Bias-Tee and coax-cable, no extra dc-cable required. Including international power supply 12V with 4 connectors. Size and connectors of Bias-T may change, depending on manufacturer. Clamp (not shonw in the image left) is part of delivery for masts up to 60 mm diameter. Instrument weight including power adapter, bias-tee and cable ~0.65 kg, Mast-LNA net weight ~0.36 kg Stock: 1, Production on request.. One used/refurbished/tested Mast-LNA including Bias-Tee and power adapter available for US250$. |
470.00 |
| Low noise amplifier for mounting on a wall (LNA2000). | Description | US$ |
|---|---|---|
 |
This frontend (cover not shown in the left image) is designed for outdoor operation, close to the antenna. Frontend contains a low noise amplifier NF < 1dB, ~20 dB gain. Full aluminum enclosure with good shielding. Including both, lightning protector and a limiter at the antenna input for protection against static charges. Including separate Bias-Tee to inject 12V dc. Power supply via Bias-Tee and coax-cable, no extra dc-cable required. Including international power supply 12V with 4 connectors. Size and connector of Bias-T may change, depending on manufacturer. 4 holes are foreseen to screw or bolt to a wall, roof or any other structure. It is recommended to protect connectors from direct rain by kind of roof. LNA2000 can be mounted in any position, flat, vertical or horizontal, even underneath. Instrument weight including power adapter, bias-tee and cable ~1.7 kg, LNA2000 net weight ~1.41 kg. Stock: 1, further production only on request. |
650.00 |
| Single channel heterodyne up-converter. | Description | US$ |
|---|---|---|
 |
Passive up-converter to observe lower frequencies than the native frequency range of Callisto. Such a heterodyne up-converter is meant as a tool to observe solar bursts with a LWA, Bicone or simple Dipole. Depending on component availability, it may look slightly different inside. Also local oscillator frequency (nominal 175 MHz) depends on LO-availability on the market. Size: 190 mm x 110 mm x 90 mm, weight without power adapter 0.7 kg. With power adaper 0.82 kg. Stock: 1. Further production only on request. |
470.00 |
 |
RF-schematics. Option attenuator is only required in case of LWA with high front-end gain. All other antennas (LPDA, Dipole, BICONE) don't require attenuator at the input. In case of an order, I need to know the type of antenna. |
| Dual channel heterodyne up-converter. | Description | US$ |
|---|---|---|
 |
Passive dual channel heterodyne up-converter to observe frequencies below the native frequency range of Callisto. This unit is meant as up-converter for LWA (LHCP and RHCP) to observe 10 MHz - 78 MHz. Local oscillator is quartz controlled at 175 MHz, some at 200 MHz. Output frequency range dedicated for Callisto: 185 - 253 MHz. For LWA applications, both channels are frequency- and phase synchronous. For single dipole applications we suggest another converter, as shown above. Power consumption: 12 volts, 130 mA ... 150 mA, ~1.8 watts. Weight: 1.3 kg Size: 257 mm x 170 mm x 55 mm Prize includes a 12 volt power adapter with international connector set. Depending on component availability, it may look slightly different inside. Stock: 1. Further production only on request. |
840.00 |
| Single channel heterodyne down-converter. | Description | US$ |
|---|---|---|
 |
Heterodyne down-converter to observe frequencies above the native frequency range of Callisto. We can provide converter to obsere 1000 MHz - 1600 MHz to observe solar radio bursts in L-band as well as GNSS signals, e.g. GPS and others. Converter also provides dc via a Bias-Tee to feed the frontend (LNA). Depending on component availability, it may look slightly different inside. Also local oscillator and frequency depend on availability on the market. Others frequency ranges (S-band, C-band, X-band etc.) on request. Stock: 0, production discontinued. New design in preparation as a combination of Mast-LNA and down-converter in one single box. News, images and prize July 2022. |
880.00 |
| DiSEqC satellite rotor controller for 2 rotors. | Description | US$ |
|---|---|---|
 |
Interface to control up to two satellite-rotors based on DiSEqC-control sequences. Interface connected via a USB-cable to a notebook or PC. Python scripts will be provided, one for azimuth/elevation and another one for parallactic mode in hour-angle/declination. A dedicated script to track IRIDIUM-satellites is also available on request. Rotor is powered and controlled via the same 75 Ω TV-coax cable. Controller will be delivered with USB-cable and an 18 volt power adapter with a set of international connectors. Instrument weight including power adapter and USB cable 0.7 kg, DiSEqC net weight ~0.55 kg. Stock: 4 units. |
270.00 |
 |
Backside with two F-connectors for two satellite rotors, USB-connection to any PC and DC input 13V (slow) .... 18V (fast). Description #1: Manual 1 Yet another description: Manual 2 |
| Spare parts and support instrumentation/tools. | Description | US$ |
|---|---|---|
 |
Power adapter with 4 international connectors. Order the right voltage (Callisto 12V, some converters require 15V and DiSEqC uses 18V). Weight including card-box 0.15 kg. |
35.00 |
 |
Bias-Tee to feed DC into the coax which goes up to the front-end (LNA). |
50.00 |
 |
Band pass filter for CALLISTO low frequency observations. Pass band: 10-78 MHz, insertion loss less than 2 dB. Both sides female SMA-connector. Meant as input-filter for heterodyne-up-converters. Stock: 9 filters. |
80.00 |
 |
Adapter USB / RS-232 which has been successfully tested many times. |
35.00 |
 |
Serial extension cable SUB-D9f/m. |
15.00 |
 |
N-type adapter to connect coaxial cable extensions. Adapter female/female is meant to connect two coaxial cables. Adapter male/male is meant to connect amplifier and CALLISTO or Bias-Tee and CALLISTO or ... Other adapters N/SMA, N/BNC, SMA/BNC etc. on request. |
10.00 per adapter |
 |
Low noise amplifier 50 MHz - 1 GHz. Gain 18 dB @ 900 MHz. Noise figure 0.6 dB @ 900 MHz. Can be used as LNA between antenna and CALLISTO or as a booster for long coaxial cables. LNA weight 40 grams, power 5.0V / ~90 mA. |
55.00 |
 |
Passive equalizer to compensate for cable loss at low frequencies. Main-application: Reduction of low frequency gain for long wavelength antenna (LWA). Unit is meant as an interface betwenn coaxial cable and spectrometer. Dimensions of enclosure: 42 mm x 32 mm x 12 mm. Stock: 2, production only on request. |
55.00 |
 |
Measured insertion loss s21/s12 and input-/output-matching s11/s22 of prototype model #1 in frequency range of CALLISTO. 25 MHz: -27.7 dB, 50 MHz: -21.2 dB, 100 MHz: -13.7 dB, 200 MHz: -5.3 dB, 400 MHz: -1.3 dB, 800 MHz: -1.9 dB. |
|
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Crystal controlled oscillator, based on a Silicon Labs device Si550 used to build heterodyne-upconverters. Frequency: 175.000 MHz (fundamental), Power +4.0 dBm. 1st harmonic at 350.000 MHz, power -17 dBm. 2nd harmonic at 525.000 MHz, power -35 dBm. Supply: 5.0 +/- 0.1 volts, 110 mA. Enclosure size without SMA-connector: 42 mm x 32 mm x 12 mm. Net weight: 37 grams. Stock: 0, production only on request. |
130.00 |
 |
Crystal controlled oscillator, based on a Silicon Labs device Si550 used to build heterodyne-upconverters. Frequency: 200.000 MHz (fundamental), Power +10.0 dBm. Spurious -60 dBc. Supply: 5.0 +/- 0.1 volts, 110 mA. Enclosure size without SMA-connector: 42 mm x 32 mm x 12 mm. Net weight: 37 grams. Stock: 1, further production only on request. |
135.00 |
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