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Posted: 15 Oct 2019, 23:42
by LA1HU
Hello all paraset friends

After practicing the paraset on reception, and thinking about how difficult the RX is to tune, I think I will choose to only prioritize the 80m band. Preferably get a band spread that covers the cw portion of the band from 3.5 Mhz to 3.6 Mhz, but preferably a little over but not too much.

Does anyonehave experienced in this to share ? schematic, etc. i would be glad to hear from you.
Thank you for your feedback


Re: Bandspread

Posted: 18 Oct 2019, 21:17
by LA1HU
I found this - maybe this will turn out ok for me.
(Will send you a email Henk in case you have the RX coil parts and caps. for me?) ... ips_07.htm

Btw. it does not look like is active anymore. Tried to send them an email but could not be delivered.

Re: Bandspread

Posted: 09 Feb 2020, 13:09
by Sa2clc
I put a series 40pf mica cap with the tuning capacitor. Added a 70pf trimmer capacitor i parallell with the series caps, and adjusted that to reach 3500khz on receive.
A better approach would have been a 10pf tuning caps, to better coincide with the 0-100 marks.

Re: Bandspread

Posted: 09 Feb 2020, 22:01
by Parasetguy
Hi guys
Concerning bandspread:
You should also look at this:

Kind regards,
Henk - Parasetguy