Re: ubitx spurs? Added LPF
¿ªÔÆÌåÓýThanks Raj.? I'll pick up some 51pF
caps Monday.? My local parts shop gets worried
if they haven't seen me in a day or two... I'll try parts I have on hand first.? Otherwise, it'll be time to put together another Digikey order...? I noticed I should have some Murata LQW2BASR33J00L unshielded parts that I picked up for a Radioberry build. This is the placement I'm planning, mostly because I'd already cut the trace from R27 to C10 in two places for the previous filter and this will cover the cuts. - John On 4/14/2019 12:28 AM, Raj vu2zap wrote: John, see this earlier post of mine /g/BITX20/message/62097 Raj At 13-04-19, you wrote:I was about to dig into my parts bin searching for toroids and I remembered I had those left over. I'll probably have to order some 30 uH parts. 27 and 33 are easy to get locally, 30 maybe not. Sounds like the way to go, thanks. John On 4/13/2019 6:28 AM, Raj vu2zap wrote:John, Very neat job on L5 and L7. Make the 45MHz IF new filter with SMD parts. What seems to be the culprit is any vertical wire leads in that area causes trouble. Solder the SMDs directly on the board. When I get back to town tomorrow I will try it. Raj |