a minimum bandwidth of the roofing filter of about 6 kHz is
required.
73
Uli, DK4SX
-Ursprüngliche Nachricht-Von:
[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Im Auftrag von Eric WebnerGesendet: Sonntag, 15. Mai 2005
04:52An: drakelist@www.zerobeat.netBetreff: Re:
[drakelist] R
uired.
73 Bob, 5B4AGN
- Original Message -
From: Graf Ulrich Com MD PD ST 2 ULM 1
To: 'Eric Webner' ; Drakelist Mail (drakelist@www.zerobeat.net)
Sent: Tuesday, May 17, 2005 6:13 AM
Subject: AW: [drakelist] R-4C filters
Hello Eric,
the filter on the first if is centered, that means
Uli, DK4SX
-Ursprüngliche Nachricht-Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von Eric WebnerGesendet: Sonntag, 15. Mai 2005 04:52An: drakelist@www.zerobeat.netBetreff: Re: [drakelist] R-4C filters
Hi there,
My two cents worth: if SSB sounds great with a 2.1 kHz filter
Dino Papas [EMAIL PROTECTED] made an utterance to the drakelist gang
--
Mike -- I've done them all and the most noticeable improvements I
noticed years ago when I did them were the power supply and audio amp
fixes, most
some of the mods. Thanks for any input!
Mike W4DL
- Original Message -
From: Jim W7RY [EMAIL PROTECTED]
To: n7ioh [EMAIL PROTECTED]; drakelist@www.zerobeat.net
Sent: Saturday, May 14, 2005 10:35 PM
Subject: Re: [drakelist] R-4C filters
Jim W7RY [EMAIL PROTECTED] made an utterance
n7ioh [EMAIL PROTECTED] made an utterance to the drakelist gang
--
I am looking at buying some filters to improve my R-4C late serial
number. From what I have read the first thing I should do is to replace
the stock 1st IF
Jim W7RY [EMAIL PROTECTED] made an utterance to the drakelist gang
--
I would take a look at the Sherwood engineering site.
http://www.sherweng.com/filters.htm#drake-r4c
They specialize in Drake filters and modification kits. I
Hi there,
My two cents worth: if SSB sounds great with a 2.1 kHz filter in the second IF (and it does!), then a 1st IF filter that is just as tight would be fine, also. Personally, I would like a4 kHz filter. It would be too small a bandwidth for AM, but my interest is mostly SSB and CW. The idea
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