Lowpass Filter PCB Kit for WSPRlite and General Use
***Filter builder for hire in the UK*** Click here.
New compact PCB for better choice of enclosures and improved high frequency performance
- Board kit only - use to mix and match filters using our band packs or your own components.
- Board kit plus band packs for 160m, 80m and 40m - perfect for use with the WSPRlite Flexi or Classic
- Board kit plus band packs for 20m, 15m and 10m - perfect for use with the WSPRlite Flexi
The filters are selected using jumper links (supplied).
Board Kit includes PCB, 2 x jumpers, 2 x header pin arrays, 1 x SMA tail, 1 x SMA socket, 1 x cable tie.
PCB size 59 x 87 mm. Mounting holes M3.
Options here apply to PCB V1.2 Nov 17 onwards. Print your own enclosure! Lots of folks have 3D printers and are desperate to find a use for them. Maybe you have one yourself or know someone who has one? We provide the files free on Thingiverse. Click here.
Buy a printed enclosure from a third party:
We recommend PLA or ABS plastics.
17 Reviews Hide Reviews Show Reviews
A must have to go with the Flex
nice low pass filter! tested and harmonic down here!!
I have built 3 of these, the first was a version 1 and two version 2. The v2 board is a good improvement. Building is easy. It would be nice to have a 6 or even 8 LPF board as I've had to put 2 together with appropriate switching to cover 6 main bands.
Good quality components and simple to construct.
Excellent kit, easy to build when following the comprehensive instructions
Everything you need is supplied and the instructions provided via the website are comprehensive and straight forwards. The kit was very easy to build.
I purchased the low pass filter PCB kit after looking at the WSPRlite Flexi's spectral output without a filter. Yes, you absolutely need a filter with the Flexi. Thankfully, this PCB kit made that job so much easier! Components were very easy to solder thanks to the well planned thermal pads. I would highly recommend this kit.
Quality kit - Easy to make with with clear instructions.