It’s been on the Committee Meeting Agenda for a few months, a temporary waterproof cover for the feeder on the dish. Did it take a genius to get this sorted, no it was our treasurer, need I say more other than Thank you Stephen M5SJM!!!
Continue reading →Two working parties at the club this morning, Roger G3PVU and Steve M5ZZZ were in the shack sorting out and testing some of the surplus equipment for the sale on 10th October; they were moving so fast the first photo blurred!! Then there was work to be done on the antennas and this party consisted of Les G1LQB, Andy M0IYE, David M7OYN, Daron 2E0GFY and Martin M0TNM.
Continue reading →Club member Andy G0FVI has had an article published in Scatterpoint, the UK microwave group newsletter. The article is about building parabolic dish feeds for the bands 23cm and 13cm using minimal tooling. Andy decided early in 2019 to have a go at EME on 23/13 cm plus putting together a station to work through QO100, the first geostationary amateur satellite. Constructing dish feeds for these frequencies normally involves finding someone with a lathe to accurately cut metal to precise dimensions. Searching around for a local firm to do the cutting did not yield any takers despite many of these … Continue reading →
A few items to cross off the ‘matters arising’ at our next Committee meeting. Les G1LQB and Stuart M7RSF finished off the refurbishment of the trailer; it looks like new now. Alistair M0TEF, Stephen M5SJM and Si M0SIY repaired and put the Doublet back up And Alistair and Stephen fitted the new capacitor to the Gap Eagle; it will be tested at Fir Park over the weekend.
Continue reading →Saturday morning a team of members, Roger G3PVU, Dave G0BEN, Andy 2E0OYQ (Congrats on the new callsign), M5ZZZ (for getting it out the shed and also going out and getting the wall bracket) & Simon M0SIY, set about assembling an antenna that has been in storage for a few years at the club. The Hy-Gain AV-640 has been used with great success in the past at the club and it was decided the it should be put back up to complement the Doublet currently in use. The Hy-Gain AV-640 is an 8 Band Vertical antenna covering 40, 30, 20,17, … Continue reading →
This weekend members undertook more work on the clubs antennas. After the work done previously installing the HB9CV, when the mast was put back up it was found to have a high SWR. The coax used was an existing run that was previously used for 23cm which was taken down that same day with suspected antenna problems. With this coax now being used to feed the HB9CV which was also showing a high SWR the coax was now also suspected as faulty. This Weekends Antenna Work Stephen (2E0SSM), Les G1LQB, Peter (2E0FGA), Roger (G3PVU) & Steve (M5ZZZ) arrived on … Continue reading →
On Thursday 15th February 2018, club members Roger (G3PVU), Les (G1LQB), Steve (M5ZZZ), Alistair (M0TEF) and Peter (2E0FGA) installed the Hy-Gain TH-5, 5 element, 3 band (10m, 15m and 20m) beam antenna at the Lincoln Shortwave Club site. Pam (G4STO) kindly prepared lunch for the team. Alistair (M0TEF) reported performance was good with some big signals coming in from the states. An added bonus was an air display from the Red Arrows, who are based at RAF Scampton. Find out more about the Red arrows here.
Continue reading →On Wednesday 25th Jan Ian G4XFC gave a very informative talk on the Magnetic Loop aerial explaining the principles of the loop and showing that they were not as difficult to make as often perceived. The talk mainly concentrated on making a QRP portable loop that can be assembled and operated in less than 5 minutes. The talk has motivated some of the members to have a go making a portable loop for themselves, which was the main purpose of Ian’s talk. Because of this Ian has decided to have a Magnetic Loop workshop on Saturday the 18th of February … Continue reading →
Using his ‘home brew ‘Tesla coil’ spark generator and a fluorescent tube, Brian Hiley (M0YXB) showed how electromagnetic energy is transmitted wirelessly through free space. This simple but effective demonstration served as a very effective introduction to his talk on Antenna Modelling, to an audience of some 20 radio amateurs gathered at the LSWC HQ in Aisthorpe on Wednesday evening 31st August. The basics and application of the MMANA-GAL Antenna Analysing tool was the core of Brian’s both fascinating and informative well illustrated presentation. He explained how the programme, which is freely available for download from the Internet, … Continue reading →
G3LIQ / G4ERZ Top Band Vertical 50Ohm Coax feed. Info by G4SEF (Corrected by G4XFC) The original publication by G4SEF had a mistake in wire size quoting 1.2 AWG which is over 7mm instead of 1.2mm magnetic wire, which fits into the length of the designed loading coil. For practical and economical purposes I recalculated the loading coil with 16 AWG (1.25mm) magnetic wire. Calculation on the original publication meant that over 52mtrs of wire was needed for the loading coil which meant you had to purchase a 1Kg roll to wind the coil as their is approx 92mtrs of … Continue reading →
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