Andy – I compared several inexpensive GPS disciplined Reference Oscillators in 2023: https://www.reeve.com/Documents/Articles%20Papers/Reeve_GDOComp.pdf or https://www.astronomy.me.uk/wp-content/uploads/2026/07/Reeve_GDOComp.pdf Whitham Reeve
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…
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.…
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…
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…
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…
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…
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…
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…
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…
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