Just what I need. Many thanks. Rich.

I am looking for a suitable box for a mast mounted preamp. One such as the SHF-Electroink type as shown on the attached picture. I did manage to pick one up from a rally a few years ago – does anyone

Another mast related question. When a pump up mast is used on a outside broadcast van, for instance, the coax is wrapped around the mast and when the mast is lowered, the coax forms its self into a ci

Could I ask.....do you leave the masts pumped up for extended periods? Rich

Thanks for all the replies about the pump up masts. Could I ask about mounting them on a wall. The attached pic shows the rear of my new shack. The corner is built from 440 * 210 * 100 concrete blocks

For my new shack, I have been thinking about getting a pump up mast, which would need to be at least 6m tall. It would need to be wall mounted and the initial payload would be an AZ & EL rotator, with

AD also do a VHF/UHF version, somewhat cheaper. I just want some software that will allow me to specify a number of bytes to be sent, then to allow me to load up the bytes and send them.

I wonder if anyone knows if there is any software about that can control a device connected via an SPI bus. There are small compass modules available that are SPI controlled. Along with various PLL mo

I have just sent an email to Mini-kits in VK, enquiring about a couple of PCBs and received this reply: Sorry we can no longer ship to the UK due to changes to your tax system. https://www.minikits.co

The CAN bus is widely used in industrial automation, controlling drives and HMIs on large machines and plant. The main problem is that there are no set standards of commands. Each manufacturer goes th

The 12V to 5V is a 7805 linear reg, but the 12V is probably via a SMPS. I will make sure I have some filtering on the 12V input at the preamp. Rich

I have just built a G4DDK PGA-103 preamp to use for ADSB receive on 1090MHz. The preamp will be mounted up on a pole, directly underneath a PCB antenna, in a plastic tube. I feed 12V up to the preamp

Sorry to mislead you…….the ifr2025 works fine. Very clean. Its just the packaging could have been better. Rich

I bought a IFR 2025 from the last auction. Fast delivery once it was paid for, packed adequately, not perfect but it is all working in the end. The final price was a bit of a shock though, with the 15

Hope you don’t mind a bit of shack clearance – I have been collecting parts to build a 1GHz PC controlled spectrum analyser, detailed at www.scottyspectrumanalyzer.us Please see ebay item number 12431

The PA looks likely to be from a Plessey DRS1300 uW link. I used to look after about a dozen links using them. Power out on 13GHz was about +23dBm. When we stripped them all out, they went into the sk

Is there anything available in a SOT-89 type package, if it has the 0v in the center then I can get it onto the PCB? Rich

Thanks for the reply. I really need them in TO-92 packages though, to suit the W1GHZ GPSDO pcb. Rich

I need to buy a low noise 3V3 voltage regulator, for a GPSDO. Preferably in a TO-92 case........has anyone got any suggestions? Rich G8ZHA

I have put up a dish for Eshail, (in the pic attached) but I have been unsuccessful in seeing the satellite so far, I suspect I have some trees in the way, I was hoping to see the sat through a gap. I