[Elecraft] No TX on ssb

Thu Jan 23 00:52:00 2003

Guys thanks for the information.  I have went through the BFO set up a
couple of times and everything looks in order.  The microphone is wired
correctly and W2 & W3 were removed before ssb module added.  Voltages are at
proper levels as per troubleshooting charts in KSB2 instructions.  No bad
solder joints either.  Don't have a scope, but could likely could get access
to one.

The external antenna tuner which I have the K2 hooked up through shows power
out when TUNE pressed.  In CW mode I have power out.  When I talk into the
mic there is zero modulation according to the wattmeter on the tuner, but I
can hear myself on another ham receiver in the shack?

Could U5 on the KSB2 module which is the balanced mixer/modulator be a
source of this problem?

73,

Tom KG4KGY
K2 # 2688

 ----- Original Message -----
From: "Tom Buchanan" <[email protected]>
To: <[email protected]>
Sent: Tuesday, January 21, 2003 11:45 PM
Subject: No TX on ssb

> Hello,
>
> I wonder what I am missing here?  I just put the KS2B module in and
> connected the MH2 mic.  Solder points look good and I followed the
> troubleshooting steps in the ssb adapter manual.  Checking the DC voltages
> on the ssb module with the DMM on both RX & TX the voltages are within the
> proper ranges.  No power out on ssb only.  Troubleshooting tips at the
> Elecraft website - "no TX power out?  Make sure C167 (RF) is installed."
> However in the manual for the ssb adapter C167 is removed.
>
> Any ideas on what the problem might be?
>
> Thanks,
>
> Tom KG4KGY
> #2688
>

----- Original Message -----
From: "k4zm" <[email protected]>
To: "Tom Buchanan" <[email protected]>
Sent: Wednesday, January 22, 2003 6:50 AM
Subject: Re: [Elecraft] No TX on ssb

> Tom:
>
> You do remove C167 when you install the SSB Generator.. The first thing I
> would check is to make sure that you have the BFO set up for SSB
operation.
> If they are adjust out of the passband of the filter assy you will get no
> output.  Also make sure you have installed the jumpers on the back of the
> front panel that connect the mike connector to the radio. Do you have a
> scope?  If so I can give you some areas to check.
> 73
> Jim Younce K4ZM
> K2  SN: 18

----- Original Message -----
From: Tom Buchanan
To: [email protected]
Sent: Wednesday, January 22, 2003 5:59 PM
Subject: Re: [Elecraft] No TX on ssb

Ron,

I think I responded incorrectly.  W2 and W3 jumpers were removed.  I was
thinking about the jumper blocks on the back of the mic configuration pin
that I installed. Just didn't give it a second thought about which jumpers.

Tom

----- Original Message -----
From: [email protected]
To: [email protected]
Sent: Wednesday, January 22, 2003 9:02 AM
Subject: Re: [Elecraft] No TX on ssb

In a message dated 1/22/03 5:20:38 AM Pacific Standard Time,
[email protected] writes:

Ron,

Yes the jumpers are in place and also the 5.6k resistor.

Tom

That's the problem. The jumpers need to be removed. They are made to bypass
the KSB-2. When you install the KSB-2, you need to remove the jumpers.