Search found 141 matches

by DaveB
Thu Apr 18, 2019 9:50 pm
Forum: SDRplay related
Topic: FOR FM DX Which modell RSP
Replies: 4
Views: 941

Re: FOR FM DX Which modell RSP

One point in favour of the RSP1A is that at 6MHz sample rate and below the ADC is 14 bits which gives an extra 12 dB of dynamic range compared to the 12 bits of of the RSP2/RSP2 DUO. This should reduce the likelihood of signal overload.

David
by DaveB
Thu Apr 18, 2019 11:11 am
Forum: SDRuno
Topic: Scanner and RDS decoder
Replies: 1
Views: 905

Scanner and RDS decoder

It is a great step forward to have a 'proper' scanner integrated in with SDRUno. I've tried it on airband, just to see how it worked, and on FM - which is my main area of interest. The video tutorial is a very helpful complement to the manual, but a point to note is the manual doesn't appear to ment...
by DaveB
Wed Apr 17, 2019 10:59 pm
Forum: SDRuno
Topic: How Do I Display More Spectrum?
Replies: 9
Views: 1327

Re: How Do I Display More Spectrum?

You need to be aware of two things regarding the 'full 10 MHz'. 1. The ADC is only running 8-bit resolution. This is going to degrade weak signal quality compared to the 12-bit resolution at 8 MHz. 2. The usable bandwidth (at any sample rate) is 10% less - so you will get around 9 MHz bandwidth at 1...
by DaveB
Wed Apr 17, 2019 7:51 pm
Forum: General
Topic: Weird bug in this bulletin board
Replies: 0
Views: 554

Weird bug in this bulletin board

Here is something really annoying - hope it can be fixed. I log onto the bulletin board, read some stuff. Decide to post something - when I hit send - I get a message "you must be logged on to post to this forum. I use back arrow - my post is lost. I back arrow on the board Index page - which s...
by DaveB
Thu Jul 05, 2018 2:37 pm
Forum: SDR Antennas
Topic: magnetic loop and pre-amp?
Replies: 5
Views: 4180

Re: magnetic loop and pre-amp?

Hi Tory, See my post in this forum regarding my shielded magnetic loop. Here's a link to the original construction article by PA0FRI: article.https://pa0fri.home.xs4all.nl/Ant/Active%20antenna/Active%20receiving%20%20loop%20antenna%20eng.htm It is untuned - and feeds an original SDRPlay RSP (not a 1...
by DaveB
Sat Jun 02, 2018 3:45 pm
Forum: SDR Antennas
Topic: Home built Shielded magnetic loop for LW to HF
Replies: 0
Views: 2551

Home built Shielded magnetic loop for LW to HF

With zero VHF activity up until early May I decided to attempt making a magnetic loop antenna for MW-HF. The one that appeared to be most likely to work was a shielded magnetic loop. A design published by PA0FRI was the starting point and it used a standard MMIC chip which happens to be available as...
by DaveB
Sat Apr 21, 2018 8:16 pm
Forum: SDR Antennas
Topic: Using a Wellbrook ALA1530LN on an RSP2
Replies: 4
Views: 3895

Re: Using a Wellbrook ALA1530LN on an RSP2

Paul - the two diagrams in you last attachment are for different RSPs. The left hand one is for an RSP/RSP1, the right hand one is for the RSP2. There are no filters on the HiZ input - check out the document "Optimizing RSP1A performance below 60 MHz" on the SDRPlay web-site See the pararg...
by DaveB
Tue Feb 20, 2018 11:41 pm
Forum: SDRplay related
Topic: SDRPlay RSP1 & SDR#?
Replies: 11
Views: 8804

Re: SDRPlay RSP1 & SDR#?

Maybe be, we could have cross exchanges between SDRPLAY team and SDRsharp team to integrate airspy in sdruno and sdrplay in sdrsharp That is very unlikely to happen. Would you expect Apply to write software to allow Android users to access iPad programs? and provide it for free! One of the problems...
by DaveB
Sun Feb 18, 2018 8:23 pm
Forum: SDRplay related
Topic: SDRPlay RSP1 & SDR#?
Replies: 11
Views: 8804

Re: SDRPlay RSP1 & SDR#?

I absolutely rely on SDR# 1361 to run SDRPlay RSP. I've used it since it was released - and thank goodness I always installed new builds into a new folder as after that SDR# doesn't support SDRPlay. The entire folder is backed up in various places! My niche hobby is FM DX and I need to be able to de...
by DaveB
Fri Dec 01, 2017 12:19 pm
Forum: General
Topic: SDRplay questions
Replies: 3
Views: 3181

Re: SDRplay questions

You have two options to remove a strong FM transmitter. The first option is built into the RSP1A - an FM band rejection filter. The second option for a specific frequency is a double tuned notch filter - this will give 60 dB rejection on one channel. The RSP1A would have to be the choice for your re...

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