DARC reports 35 Electrical Noise Area Monitoring Systems (ENAMS) have been delivered and another 20 locations are sought as part of the effort to monitor the interference from human-made noise on the HF bands
ENAMS is based on nationwide installed measuring stations that work as a network. With their help, the DARC can make scientifically reliable statements about interference levels on the frequencies. As is well known, the interference has increased in recent years, as various consumer devices drive up the noise level.
The ENAMS project was funded by the DARC Membership Pro in 2018.
21/11/20: GM4TOQ, MM7DCD, MM7STP, GM4COX + Scotty & Gregor
A further 4 Cubic Metres of concrete added to complete job. (Approx 10 Tonnes + 2 CuSq on the 14th – total of 15 Tonnes) And small quantity of extra concrete used to build ‘step-down’ from #1 to #2 Shack.
Unloaded a pile of slabs next to the shack taken up by the tractor
Spent a few hours on making fence posts out of what we can reuse of the old fence ones. Ground and cut then welded the remaining fence posts into a usable state, the bottom ends that had previously been in the ground had rusted away
Stock take of fencing bits that can be reused and worked out we need to buy approx 80m of bar for the rungs in the fence. Alan will check up on supplier
A lot of the fence along the top in place, still missing some of the bar for it though but have the posts and top rail in *
Cut down some bushes in the fence line and where the base of the tower will go. Need to remove roots from there, this can be done when we have the digger up for doing the hole for the tower base. Once the branches have dried a bit they can be burnt
New padlocks fitted. Floor mats fitted. Lefthand door frame repaired. Vent fitted.
Operating Desk secured. Operating chair floor boarding fitted. On-going work on door frames (right & left).
08/09/19: GM4TOQ, GM4BGS, MM7AJI, MM7AJJ
HF Beam relocated from Alan’s QTH to farmyard. Lefthand door protection door padlock cut. On-going work on surrounding fence.
Shack floor tiles cleaned. Operating Desk – equipment shelf modified and both sanded down and painted. Front door (right hand side) frame repaired.
Comprehensive CHECKLIST of outstanding items Posted on Members Forum.
20/07/19: MM1ESW, GM4COX
Stuart – MM1ESW & myself were up at the Shack on Saturday (20th) specifically to carryout some more sealing on #1 and checkout #2. This I did and took the opportunity to take a few pictures and add to the relevant Folders in Photos.
I was out at the shack this afternoon……………… started sorting out the contents of the old shack. I divided stuff up into components and equipment. The components are now packed up and labeled ready to go to the Electron Club for use by the SoLDER group and others. Just need to get them down from the shack at some point
I have photographed all the equipment (there may be some hiding that I couldn’t get at due to all the cable making things a bit crushed inside) All the smaller stuff is now in 2 crates while the larger stuff remains under the bench and next to the cooker
11/07/19: 2M1CKE, MM0ZUN, GM4TOQ, GM4COX
Floor tiles relayed in #1 and operating desk re-assembled.
#1 Roof some areas sealed. Other areas outstanding.
Tower ground post modified and aligned to swivel point. More modifications required.
Painting of the inside of #1 completed (just some small touch-ups required)
Pat has made a start on painting the inside of #1.
( JUNE – OCT: GM4TOQ )
On-going modifications to tower & groundpost. (Pictures added to Members Forum)
22/06/19: GM4TOQ, GM4BGS, GM4COX, MM7MCM
A long but successful day yesterday. New ‘BIG’ tower (and ground-post) uplifted from south of Inverness and delivered to Cochno. To be located to new Shack. Ground-post to be slightly modified. Hole dug for ground-post, positioned and concreted into place.
Thanks all: Alan – TOQ, Sam – BGS, Jack – COX and Archie – SWL (and of course a big thanks to the tractor driver who uplifted both the tower and ground-post and placed on pick-up. Saved us a lot of time).
A fuller Post to be made in our MEMBERS Forum along with pictures.
ABW 22/06/19 a team are heading north to uplift.
Arrangements underway to uplift tower.
Pictures added to Members Forum.
Both Shacks Levelled.
Shack#1, inside and outside washed and cleaned.
Start made on surrounding fence.
Wash outside Shack#2 (Old Shack) in preparation for painting #1 & #2. Paint colour to be decided. (This may depend on what is available – hi?)
Paint interior of #1. (emulsion)
Organise uplift of new tower.
Members Forum Post updated and pictures added.
Cleared old Shack#2 for preparation to be re-located on new site. Moved and sited into position. Items that had been removed most are returned for the moment.
Shack#1 emptied in preparation for refurbishment. Most items transferred to Shack#2 for the moment.
Ground around both shacks re-instated after tractor & dumper action. Looking good!
New tower gifted to the Club. Decision to ‘scrap’ old one but re-use certain items. New tower has to be collected. To be organised.
In this latest episode the RSGB’s General Manager Steve Thomas, M1ACB explains how the Society’s positive response to the spring and summer lockdown helped to boost awareness of amateur radio in the UK.Steve stresses the importance of the ongoing work needed to maintain the impetus.
Bob, G0FGX and Mike, G1IAR get to grips with using an RF Shark openSPOT Hostspot for some mobile DMR action.
Bob visits Don Field, G3XTT at his new QTH near Wells to see how the editor of Practical Wireless created some simple antennas to swiftly resume his on-air activities. TX Factor episode 27 is proudly sponsored by the Radio Society of Great Britain and can be viewed at www.txfactor.co.uk.
Eleven schools across the US launched helium-filled balloons carrying amateur radio payloads on October 9. The Smithsonian Air and Space Museum live-streamed the multiple launches. The balloons are trackable via ham radio on APRS (either 144.39 MHz FM or 144.34 MHz FM)…………..
Phil Karn KA9Q, Randy Standke KQ6RS and students at the Mount Carmel High School Amateur Radio Club have constructed and deployed an amateur radio marine buoy, callsign KQ6RS, transmitting 14.0956 MHz USB WSPR. About 700 km off the coast of southern California, the buoy is transmitting WSPR on 20m using the callsign KQ6RS and is being received all over the US and into Canada and Brazil.
The electronics is the 20m WSPR version of the WB8ELK “pico tracker” that has been flown quite a few times (including by us) on long-duration balloons. We removed the solar panels and substituted 21 ordinary alkaline D-cells wired to supply 4.5V. We estimate the battery lifetime will be 6 months.
The basic design was inspired by Bob, WB4APR, at the US Naval Academy. Physically, the buoy is just a 5′ section of 4″ PVC pipe, ballasted at one end to float vertically in the water. The top is closed by a sewer pressure test plug I found at Home Depot; it has a bolt in the centre that acts as a convenient feed-through and mounting point for the antenna, a stainless steel CB whip with a matching network designed, tested and carefully tuned by Randy. We use the sea as a counterpoise, but to avoid direct metal/seawater contact we lined the inside of the pipe with copper tape to form a capacitive connection. We probably spent too much time on this; Randy even modelled the electrical fields in the seawater with a professional RF analysis package.
Father Roberto Landell de Moura (January 21, 1861 – June 30, 1928), commonly known as Roberto Landell, was a Brazilian Roman Catholic priest and inventor. He is best known for his work developing long-distance audio transmissions, using a variety of technologies, including an improved megaphone device, photophone (using light beams) and radio signals.
It was reported in June 1899 that he had successfully transmitted audio over a distance of 7 kilometers (4.3 miles), which was followed by a second, public, demonstration on June 3, 1900. A lack of technical details makes it uncertain which sending technology was being used, however, if radio signals were employed, then these would be the earliest reported audio transmissions by radio. Landell received patents in Brazil and the United States during the first decade of the 1900s.