A mod kit of caps (SSBCAPKT) and downloadable instruction sheet are now
available ($15) for John's SSB mod via our parts and mod kits order form.
See: http://www.elecraft.com/order_form_parts.htm
The Crystal Filter Bandwidth Modification capacitor kit provides two
options to change the origina
Dan,
The 't' is on the BFO display corresponding to FL1 - and its only meaning is
that this is the BFO (carrier) frequency that will be used for transmit.
73,
Don W3FPR
- Original Message -
Well, you made me think, but it turns out, you are right. The CAL FIL
display says "t" for t
Well, you made me think, but it turns out, you are right. The CAL FIL
display says "t" for the 2.20 setting, but it's really using OP1. However,
with the alignment done on 2.20 and transmit done on OP1, the filter will be
very off, and the ripple is extreme.
My 2 year old KSB2 seems OK in the flat
The option of OP1 or 2.2, etc in the filter selection is for receive only.
However you still have to make sure that the BFO is place correct for the TX
filter OP1 and the easiest way to do that is to set up with OP1 in FL1 on
receive as was finally selected and match the BFO to that with Spe
Finally, success!
I got on QRZ and found a ham one mountain over. We got on 12 meters and
checked out USB and LSB and he said it sounded like I was on the telephone.
I guess that's gonna have to do! Being at the "factory" width for the KSB2,
we're not going to get studio audio.
In summary, the Ra
bsite.I enjoy your
contributions.
Warm Regards
73s, Nigel ZL2DF
> -Original Message-
> From: W3FPR - Don Wilhelm [mailto:[EMAIL PROTECTED]
> Sent: Saturday, November 13, 2004 1:46 PM
> To: [EMAIL PROTECTED]; elecraft@mailman.qth.net
> Subject: Re: [Elecraft] How to set
Nigel and all,
I hope I have not caused any confusion, BUT ...
I have been refering to the classical filter 'corner frequency' as the -3 dB
point, which does place the upper 'physical corner' seen on the display at
400 to 500 Hz. Perhaps I should change my text to clarify.
73,
Don W3FPR
---
00
From: "W3FPR - Don Wilhelm" <[EMAIL PROTECTED]>
Subject: Re: [Elecraft] How to set up SSB
To: "Dan Barker" <[EMAIL PROTECTED]>, "Elecraft"
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; format=flowed; charset="iso-8859-1&quo
On Fri, 12 Nov 2004, John Magliacane wrote:
Hi Dan.
A simple, low gain, direct conversion receiver (oscillator, mixer, audio
amplifier) will provide the necessary carrier injection (BFO) for proper
audio demodulation.
You can likey throw together a "pixie" style rx in less than 20
mi
t an
oscillator. I must have known that because I said it wouldn't work for CW,
but I just had to try.
Thanks anyhow.
Dan
-Original Message-
From: John Magliacane [mailto:[EMAIL PROTECTED]
Sent: Friday, November 12, 2004 10:22 AM
To: Dan Barker; Elecraft
Subject: Re: FW: [Elecraf
Hi Dan.
> Another idea.
>
> Why not some sort of RF-probe circuit? It would look just like the RF probe
> in the book, but with different component values to get the time constant
> down. The RF probe in the book gives about a 100 Hz bandwidth which isn't
> enough (I'd want at least 5K for SSB au
day, November 11, 2004 4:58 PM
To: Dan Barker
Subject: RE: [Elecraft] How to set up SSB
Hi Dan.
> The simple reciever sounds fun. Any ideas what besides a 9v battery and a
> crystal I might need?
I made one once (for the actual purpose you are describing) using 2
MPF-102 FETs and a low-nois
Dan,
You could try using the microphone direct into a tape recorder if the mic's
response is the primary question.
If you are referring to filter adjustments to match your voice, I think more
emphasis than necessary has been placed on refining the frequency range. If
you have set your FL1 B
Hi Dan.
> Ideas?
How about whipping up a cheap and dirty crystal controlled direct
conversion receiver? Set your transceiver to the receiver's crystal
frequency (which you will be able to zero-beat to with your transceiver)
and perform your SSB tests. Lots of cheap microprocessor surplus
crysta
I've just gotten my MH2 working again with a RadioShack 270-090 element. I
have no idea if that's the right part, but it appeared identical to the Heil
part, and the o'scope says about 120 mV p-p when I talk normally (Measured
at pin 5 of the SSB adapter - should be the same as mic connectory pin 1
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