I came to switching on one time and it light up, but nothing on the display. The +15 v rail is 4.7v The -15 v rail is -3.1v. I think the minus rail uses the plus rail as a reference so it may well be

I have just obtained a ADF3451 via Amazon. It seems to work OK but is there any windows software to control it? Neil G3RIR

The usual reminder that, if you wish to received DUBUS Magazine in 2021, subscriptions are due. UK readers can find all the necessary details at www.dubus.org/uksubs.htm. Non UK readers should look at

The only component the Chipbank can't help with. I've just noticed, annoyingly, that Farnell don't have the LM3480-5.0 SOT23 packaged voltage regulator i. It's available for back order 8 Feb (They hav

Ever since I got the latest version, the Standalone PicKit 3 software installed on my laptop Win 10 machine always had this annoying habit of locking up with an error message whenever it was closed do

After a long absence the Camb-Hams 23cm FM voice repeater GB3PS at Barkway in Herts IO92XA is back on the air. I've already worked 4 stations on it so there's activity. The IC9700 effect. Output 1297.

http://g4jnt.com/MicrowaversAudioKeyer.pdf The PCBs have now been delivered, and I've made one up to test - works OK. So sales of PCBs with programmed PICs can now go live. UK Purchasers will find a P

http://g4jnt.com/MicrowaversAudioKeyer.pdf Yesterday was a busy day, soldering chips to PCBs and blowing in the code; I've now dispatched all orders received. So far, 37 of the one hundred PCBs have b

and to take part on 2320MHz that they must register their station with Ofcom by emailing pssramateurs@... to provide the following information: 1. Name 2. Address 3. Call sign 4. Location of use 5. Fr

2xamplifiers containing SD1480x4 and 2x BLW36. Working when removed from chassis See picture folder foc except postage -- Mike GD6ICR IO74PF73TW

The following photos have been uploaded to the GD6ICR album of the UKMicrowaves@groups.io group. AmpHi.jpg By: Mike GD6ICR

Hi, just found two large pieces of LDF1-50 in my garage. I'm now looking for a few connectors like L1PNM, L1TSM, L1TDM. Please reply direct. vy 73, Rainer

In the past I have happily run Airscout and SDR console on the same 64bit Windows 10 PC. I tried to use it last night and I observed 2 things. Airscout would not stay on top, it just kept minimising r

Apologies to everyone who sent me contributions for the activity column this month (there were plenty of you for a change!) I seem to have misinterpreted an email for the Editor which I read as him wa

Re Brian G8CUB's question in latest Scatterpoint Free Space Path loss at 1.42GHz for 2.5 Billion LY = 32.4 + 20.LOG(1.42 * 2.5E9 * 365.2422 * 86400) = 373dB (GHz, Lyears, Days/year, seconds/day) Andy

RS Components are getting worse in their old age. After wandering up to the Trade Counter this morning to collect the PIC devices, and being told "I had ordered too late", got back home and an hour or

I've dispatched five orders so far and have run out of PICs. Five still waiting. Placed an order with RS yesterday, but they "claim" it was too late for delivery today , which was untrue as I placed t

Looking on ebay, can't find a UK supplier of N plug for semi-rigid, soldered. They all seem Chinese or Crimp. Where to go? Ben

I have a SP23MKII mats head preamp, its not working. I wonder if anyone has a circuit for it with the component value, I suspect one of the 2 Gas Fet, but unsure on what they are, they seem to be the

Hello Andy, I just ordered three of the units. I couldn’t see anywhere to say that I would like 2 of the keyed ones and 1 of the non keyed versions. Many thanks indeed, David G4GLT.