Search found 5 matches

by I4LEC
Tue Jan 16, 2018 1:40 pm
Forum: PC's & Homebrew Hardware
Topic: Yet another coupler
Replies: 0
Views: 292

Yet another coupler

Originally thought for a more conventional use, a bidirectional monoband coupler designed for a commercial solid state PA. Main characteristics are: Max input power 63dBm (2.000W) IN/OUT impedence 50 Ohm Coupling factor -45dBm @ 28MHz Certainly a totally different approach from conventional ones, as...
by I4LEC
Sat Dec 02, 2017 1:54 pm
Forum: Amplifiers & Tuners
Topic: New Expert 1.5K-FA and Pure Signal
Replies: 3
Views: 443

Re: New Expert 1.5K-FA and Pure Signal

Hi Scott, yes it looked very nice, given my input drive of 10W, the automatic attenuator settled to 21dB. Based on your old notes, If I do recall correctly, the optimum level should be around 7db prior to over load, this latter happens at -11dBm on my unit (Att = 0), at least what I figure it out wi...
by I4LEC
Sat Dec 02, 2017 9:42 am
Forum: Amplifiers & Tuners
Topic: New Expert 1.5K-FA and Pure Signal
Replies: 3
Views: 443

New Expert 1.5K-FA and Pure Signal

Hi all,
might be interesting for the community to see :roll: how Pure Signal works together with the brand new Expert 1.5K-FA, see below link

73, Clay

http://www.eham.net/ehamforum/smf/index ... 980.0.html
by I4LEC
Tue Nov 14, 2017 7:07 am
Forum: PowerSDR mRX
Topic: In case you missed it: PowerSDR mRX OpenHPSDR v 3.4.3
Replies: 17
Views: 2455

Re: In case you missed it: PowerSDR mRX OpenHPSDR v 3.4.3

First of all many thanks for the update, which I did it, even though it should have not been advisable at only less than two weeks away from the CQWW CW. New features seem to works fine, I mapped three new buttons on the console to take advantages of the tuning enhancements. C tune fixes and scroll ...
by I4LEC
Sat Aug 19, 2017 7:35 am
Forum: PowerSDR mRX
Topic: NB effectiveness on static rain
Replies: 2
Views: 487

NB effectiveness on static rain

Being on a hill top does have its pros but the high antenna can also be prone to the so called static rain, which is not really caused by the rain drops discharging on the antenna’s elements, I must say my experiences are exactly as per Tom’s one (https://www.w8ji.com/pecipitation_static.htm). When ...

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