RE: [softrock40] UHFSDR 70cm with Grade B SI570 Tests
- Dang typo ...
I meant the BCA .... what is the common top end of the 1.4Ghz version?
Date: Fri, 30 Dec 2011 03:13:52 +0000
Subject: Re: [softrock40] UHFSDR 70cm with Grade B SI570 Tests
On the Ensemble RXTX I got the si570 C up to 144Mhz, but it won't do 440Mhz, usbsoftrock attempting 440Mhz read back 144Mhz.
73 ... Sid.
On 29/12/11 22:33, MIKE DURKIN wrote:Has any one tried a Si570 BAC(or a BAA) past 1.4ghz?
I used to have a freq counter that would count up to 6ghz, had it loaned to a friend for an extended time .... lost it when he passed on ....
If I still had it I would do it my self ....
To: sdr-widget@...; UHFSDR@yahoogroups.com; firstname.lastname@example.org; email@example.com
CC: sv1eia@...; jenschristianmueller@...; dk1tf@...
Date: Thu, 29 Dec 2011 22:01:37 +0100
Subject: [softrock40] UHFSDR 70cm with Grade B SI570 Tests
You may now i am a bit a nursery's child :-)
I do still a lot of Experiments with my UHFSDR which performs very
well and locally even without BPF's and a Preamp so far.
I definitely want to go on 70cm with my UHFSDR to receive Satellite Signals.
The first results you can see here, what is possible to do with a
UHFSDR and a Grade B SI570 (up to 810 MHZ /2 = 405 MHZ normally).
My Grade B SI570 works very well up to 440 MHZ.
I was not on 70cm for years and to be honest i am impressed about the
technical capabilities of modern Repeaters.
But have a look. UHFSDR with no BPF and a 2m/70cm Vertical on the balcony:
The next is to build a filter for 2-Meter. The parts are already in
and the design is from here:
and i ordered a LNA/BPF for 70cm from Roberto DG0VE just around the corner:
So stay tuned.
73 de Oliver DL6KBG and to all a happy and successful new year
Oliver, DL6KBG, JO61UB
-- Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot, Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support Senior Staff Specialist, Cricket Coach Microsoft Windows Free Zone - Linux used for all Computing Tasks