Search found 9 matches

by Murphyv310
Wed Jan 02, 2019 2:01 pm
Forum: SDRplay related
Topic: RSP1A Longwave sensitivity
Replies: 45
Views: 7608

Re: RSP1A Longwave sensitivity

Hi. I have to say that my RSP1A works very well indeed right down to 60kHz. For a while I used a CR100 receiver with a modified Front end with two EF95 pentodes as the RF amplifiers. I use a modified Wellbrook loop and have had some excellent DX. Initially I thought the RSP1A was overly noisy and lo...
by Murphyv310
Sun Dec 23, 2018 1:52 pm
Forum: SDR Antennas
Topic: MegaDipol MD300DX
Replies: 4
Views: 3023

Re: MegaDipol MD300DX

Hi. As this antenna works on the E-field its performance will be bad for people like me in a crowded RFI area. I get noise from power line adaptors, ADSL, SMPS, and all the other sources. I've used all sorts of antennas longs wires EWE antenna and active dipole. Only magnetic loops work here and vir...
by Murphyv310
Sat Dec 22, 2018 1:03 pm
Forum: SDR Antennas
Topic: ALA1530LN and the tale of four NDB's
Replies: 11
Views: 6151

Re: ALA1530LN and the tale of four NDB's

Hi Andy. You'll see me on the Golbourne vintage Radio forum. VRAT as well. I used to be on the United Kingdom Vintage Radio forum too but had a big fall out and was kicked off. I do have many Murphy sets from the V310 V410 V320 etcetera, I've limited space and a good few items have been donated to a...
by Murphyv310
Fri Dec 21, 2018 7:04 pm
Forum: SDR Antennas
Topic: ALA1530LN and the tale of four NDB's
Replies: 11
Views: 6151

Re: ALA1530LN and the tale of four NDB's

Hi Andy. Sounds like a good mod. I'm more into Long and Medium Wave DX plus air band which I use a different aerial. I occasionally listen to other stuff and I've found the modded Wellbrook is good up to 100Mhz which is handy for me. I'm now constructing a 1.2meter loop using 15mm copper tube and tw...
by Murphyv310
Fri Dec 21, 2018 11:06 am
Forum: SDR Antennas
Topic: ALA1530LN and the tale of four NDB's
Replies: 11
Views: 6151

Re: ALA1530LN and the tale of four NDB's

Hi. I've used an ALA1530 for some time. There is a weakness though and that is where the loop enters the amplifier, under the outer alloy "loop skin" there is ferrite and in strong winds this can crack and make the loop defective. A new amplifier assembly can be bought from Wellbrook for a...
by Murphyv310
Mon Sep 03, 2018 7:36 pm
Forum: SDRplay related
Topic: TVsharp or other related software on RSP1A
Replies: 1
Views: 1742

Re: TVsharp or other related software on RSP1A

Hi.
Anyone got any views or suggestions on this topic?
by Murphyv310
Mon Sep 03, 2018 7:22 pm
Forum: General
Topic: SDRuno S-Meter = S5 With No Antenna
Replies: 13
Views: 5082

Re: SDRuno S-Meter = S5 With No Antenna

Hi Glovisol. Thanks for the reply and the tips. I have given this a try and yes I do see an improvement. My own set up from the aerials are: Modified Wellbrook ALA1530 loop, Long wire via balun and dedicated aerials for the frequencies I monitor (Band 1 Analogue TV, Low FM, Airband and 446PMR along ...
by Murphyv310
Sun Sep 02, 2018 6:44 pm
Forum: General
Topic: SDRuno S-Meter = S5 With No Antenna
Replies: 13
Views: 5082

Re: SDRuno S-Meter = S5 With No Antenna

Hi. I've been reading the thread with interest, to be fair I'm somewhat confused. Over the years I've had many receivers through my hands and was a Radio & TV engineer to trade with all the relevant qualifications. In a good comms receiver you would perhaps have two stages of RF amplification, f...
by Murphyv310
Tue Aug 14, 2018 6:47 pm
Forum: SDRplay related
Topic: TVsharp or other related software on RSP1A
Replies: 1
Views: 1742

TVsharp or other related software on RSP1A

Hi. This is my first post and thread on this forum so please bear with me if this has been discussed before or is not possible. Firstly a little history. I am an EX TV engineer and have a collection of 405 line TV's and vintage Radio sets. I have always been a SWL and am into a little DX on medium w...

Go to advanced search