[600MRG] Receptions at w0yse on 630m

[Neil Klagge]

Hi Tom and others.
I am planning to just use a simple mixer IC, it is the SA612 which is the same diagram as for the older NE602.  I use one now for my LF receive converter to 10 MHz.  Circuits for it can be found on the web such as here    https://www.lb3hc.net/wp-content/uploads/2019/12/UsingTheNe602.pdf

I will need to set my radio to TX on 10474.2 kHz and feed that to a dB pad to get it down to the power level that the SA612 can handle at its input.  There will be a TXCO at 10 MHz to mix with the TX signal which produces 4 output freqs, one of which is 474.2 kHz.

I know that there are other better mixers but I want to use all parts that I already have on hand. Gotta use them up before I meet the Guy in the Sky,   just joking....no I am not dying anytime soon, but at 82 there are fewer guarantees, LOL.

I have not yet drawn up a schematic but I think I can make it work. I will feed that into my simple one FET 5w rf amp.

Thanks for asking.
*´¨)
¸.•´¸.•*´¨) ¸.•*¨)
(¸.•´ (¸.•`   Neil , wØyse, DN41ah, North Ogden, Utah 84414

My ham radio website: http://w0yse.webs.com/
<http://wg2xsv.webs.com>
My Faith website: http://neilsfaith.webs.com/
________________________________
From: 600mrg-bounces at mailman.qth.net <600mrg-bounces at mailman.qth.net> on behalf of Tom W8JI <w8ji at w8ji.com>
Sent: Sunday, February 26, 2023 1:24 PM
To: 600mrg at mailman.qth.net <600mrg at mailman.qth.net>
Subject: Re: [600MRG] Receptions at w0yse on 630m



On 2/25/2023 8:25 AM, Neil Klagge wrote:

I have begun building a TX converter for my FT891 so that I can use it on 630m for a possible qso using one of the newer modes for LF/MF.



Can you share a link to the converter plans?

I am tossing around designing my own transverter or just buying the transverter from Australia.

If I did a transverter I would kit it just to help get some people on 630M.  The lights are always on and often nobody is home.

A 100W single band transverter would be fairly simple. I would love to use something other than my antique IC751A radio. Although it is running 100W+ output now, it is about half my age.
I want to use a newer better radio. :)

73 Tom



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