Does Norsat 9000LDF low noise block need a bias tee power supply?
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Yes. The Norsat 9000LDF requires DC power supplied up the coax, so if your SDR or receiver does not provide this, you will need a bias tee (bias-T). For the…
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What type of power supply do I need to deliver smooth 12v to my Norsat LNB?
For a Norsat 9000LDF LNB, you want a well-regulated, low-noise 12 V DC power supply. Switching power supplies can inject RF noise into sensitive radio astronomy equipment, so quality matters.…
Smallrig cooler on Picomuon detector
Since yesterday, I have been running a Smallrig cooler plonked on top of my UKRAA PicoMuon detector. I am impressed. Whole casing is kept cool, runs very quietly, whole device…
What should I tune my Nooelec SMARTee XTR SDR to when using my Norsat 9000 LDF LNB to hunt for water masers on my 1.2m satellite dish?
For the Norsat 9000LDF: The relationship is: IF = RF − 20.250 GHz So in SDR# you tune to the IF frequency. Some examples: RF frequency SDR# tune to 21.200…
Norsat 9000 LDF LNB = What frequency do I tune SDR Sharp to?
I mean Norsat 9000LDF where input is 21.200-22.200 GHz and local oscillator (LO) is 20.250 GHz. For the Norsat 9000LDF: The relationship is: IF = RF − 20.250 GHz So…
M-10047 M10047 ST RF Microwave Mixer SMA 6000-15000Mhz as part of my proposed 6.7 GHz maser receiver.
Would this successfully act as replacement for TERRASAT Microwave 6.4 – 7.1 GHz RX RF Mixer SMA ED-0280-1 MDC6471-035 ? https://www.ebay.co.uk/itm/205984985415?mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5339129536&toolid=20006&customid=958c8a6bc681104a2b53e0377cfda14b&loc_physical_ms=42038&loc_interest_ms=&msclkid=958c8a6bc681104a2b53e0377cfda14b To be a suitable replacement it needs to have:RF…
Thoughts on Building an Amateur 6.668 GHz Methanol Maser Receiver
I am exploring the possibility of building a receiver to observe the 6.668519 GHz Class II methanol maser line using amateur radio astronomy equipment. The 6.7 GHz methanol line is…
Changing voltage output from cheap OCXOs output – natively produce 5V TTL, while the HackRF and other SDRs like the Airspy R2 expect a 3.3V clock
THE FOLLOWING COMES WITH NO WARRANTY OF ANY KIND. TRY THIS AT YOUR OWN RISK – THERE IS A RISK OF DAMAGE TO YOUR EQUIPMENT BY COPYING THE EXPERIENCES DISCUSSED…
How could a 9KHz-8GHz RF Digital Step Attenuator be used to reduce the gain on a test signal at 1420 Mhz being produced by a NanoVNA, and used to test a hydrogen line radio telescope? Currently the test signal overloads the SAWBird on the radio telescope.
For your application, this type of digital attenuator is actually a very useful addition to your radio astronomy test setup. If you are using the NanoVNA as a signal source…
Brightest nearby galaxies in H1 Hydrogen Line (Jason Burnfield)
Jason Burnfield’s list with sample and expected spectra. https://www.astronomy.me.uk/wp-content/uploads/2026/07/Jason-Burnfield-Nearest-Bright-HI-Galaxies-Brightness-Order-170726.pdf