For anyone else looking at the items, here's my list of notable items: http://www2.ppauctions.com/lot.php?l_id=95873&id=185&search=&cat=all&perPage=50&sort=2&thisPage=5 HP 8561A spectrum analyser,

Thanks very much to everyone who helped. I have both the English and German versions of the article. Now I will investigate if any of the parts are unobtanium. Conrad

Hi Conrad, I have a copy here and will scan it later on this evening and send it to you. I don't think that any hardware will be available as the publication has ceased and been

dont know if this might help you, http://www.kl7uw.com/Speed_Control.htm design for a High Gain but might help The DB6NT PCB is still avalible to buy, so I would guess the article is avalible

I have a PCB from DB6NT that is called Rotor Speed control. The article is in UKW Behrichte 02/02 according to a list I found. Can anyone help me find this article? Does anyone know if they are

There's a real "must have" scope on there, just £55 at the minute. http://www2.ppauctions.com/lot.php?l_id=95734&id=185&search=&cat=all&perPage=20&sort=2&thisPage=5 with a mere 8 bidders. But I'm

I am going to view the auction bits on Tuesday. If anyone wants me to check out (as possible) a particular item. Please contact me via email Roger G8CUB

I have just bought a used G1000S rotator and the controller does not have a speed control, it is far too fast! As I already have an ERC-4 kit I don't want to build an Arduino type controller but want

Sounds like a good solution Ian, I'm running mine with my FT847 and it works a treat. Best Regards Tim Hague

Mike see attached 73Barry, G8AGN On 29/10/2016 23:34, mb.golfmad@... [ukmicrowaves] wrote:

You may wish to consider an Arduino instead of a PIC. Very easy to program from a P.C. and programs (called sketches) alreadyexist which can easily be adapted to what you want. Arduinos cost very

I recently acquired an ADF4351 evaluation board..the black one as recommended by Andy G4JNT. The thing is I would like to use it as a LO source for my DB6NT 13cm transceiver. My thoughts are to be

Hi guys, Whats anyones thoughts on using one of my spare Ft726's as driver rig for the Sglabs transverter, The 2m Module in the Ft726 can have links changed to give 146mhz so can change the IF on the

Thanks for the tip Andy, I had a look earlier at the HMC802 but it isn't clear whether it can operate in differential mode. It is rated up to 8GHz. Also looked at the ADL5513, but that is

The AD8313 Log detector chip operates over 100MHz to 2.5GHz and has differential inputs - making it possible to directly connect to a resistive return loss bridge to measure Vref without the

Probably the most important item to own if you want to make return loss measurements - even if you own a network analyser - is good a set of calibration standards: a good load, and open and

Thanks Doug and Sam, I was bamboozled by glossy VNA adverts and forgot the basics. I found an HP797D that is supposed to do 26dB directivity and -20dB coupling from 1.9 to 4.1GHz.

Just to add to what Doug says. There are lots of directional couplers out there, but do not confuse these with the single port 'samplers'. These often have poor directivity as they are designed for

Hello Neil. What about a good old coaxial directional coupler, e.g. Narda or other brand from the surplus market? Such things are available with 'N' or SMA connectors and are

Not having the luxury of a microwave VNA, what is the best way to measure return loss in the 2-4GHz range? I've seen some designs using a BGA log detector chip and 0402 SMD bridge components, and