[Elecraft] K2/100 & 6 meter - CW is not giving any output

[Matt Osborn]

Rob,

I have a K2 (no KPA100) with KIO2, K60XV and XV50 and CW works fine on
6 meters.  My 28Mhz band feeds 1 milliwatt through the K60XV to the
transverter; the PTT feeds through the KIO2, same as your setup.

Your jumpers should be set to include the attenuator (JP3 2&3, JP4
2&3) and to exclude the amplifier Q6 (JP5 1&2, JP6 1&2).  As Don
pointed out, none of those have much to do with CW though.

You should be able to use the RF probe that came with the K2 to check
for RF in the transverter at R22 (connects to JP5) and again at L9
(connects to D10).

If you're not sure of what level you're reading, vary the K2 power
knob while probing. Your reading should follow the power knob setting.
The CW will undoubtedly vary on its own, but you should see the upper
limit vary.



On Tue, 16 Aug 2005 22:51:23 +0200, PA2R via Muurkrant
<pa2r at muurkrant.com> wrote:

>TRN1 option is set to On and I can see when setting TRN1 to off the 6 meter
>transverter switches off and 6 meter is not a selectable band anymore.
>
>Tried 10 meter CW and gives 100 watt output, no problem.
>
>CW is not in test mode but in oper mode
>
>Tried CW keyer in hand mode and dash side of keyer produces a cw tone,
>release is switched on but no power, switching to SSB and it give 15 or 20
>watts output. The tuner indication switches from hi to low when selecting
>the 6 meter transverter, although the connection cable is going to the tuner
>the antenna goes directly from K2 to Transverter and from transverter to
>antenna.
>
>Unfortunately I haven't got a dummy load but can say for 99.9% I am sure no
>power goes out.
>
>Hope some others have bright ideas or can confirm their 6 meter transverter
>IS working on CW. At least I than know it can work.
>
>73 Rob PA2R
>
>-----Original Message-----
>From: elecraft-bounces at mailman.qth.net
>[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of W3FPR - Don Wilhelm
>Sent: 16 August 2005 20:24
>To: Rob Snieder; elecraft at mailman.qth.net
>Subject: RE: [Elecraft] K2/100 & 6 meter - CW is not giving any output
>
>Rob,
>
>Assuming you have all the K2 trn 1 menu parameters set correctly and the
>transverter properly configured (and you likely have them correct or the
>transverter would not work in SSB mode), you have a mystery for me.  The
>Transverter does not know (and should not know) whether the RF is being
>produced as CW or SSB.  All I can conclude is that the K2 is producing no RF
>at 28 MHz when in CW mode.  The fact that no indicators are illuminated adds
>to my suspicion that there is no RF present.
>
>Since you have RF in CW mode on all the HF bands, I would recommend that you
>disconnect the coax to the transverter and connect it to a dummy load - then
>see if there is RF output from the K2 when the band is set for 50 MHz and in
>CW mode.  You can use a 'scope or RF Probe across the dummy load to detect
>the RF.
>
>I can see nothing in the setup that would prevent CW output when SSB output
>works OK - the only thing I can think of is that somehow you are getting the
>K2 into CW Test mode (is the 'c' on the K2 display blinking?) - I'm guessing
>here because the CW test mode does not change when you change bands, and it
>is reset after a power off cycle.
>
>You might try setting the K2 menu INP parameter to 'Hand' temporarily to see
>if it works when the K2 is keyed from a long keypress - if it does, you
>should be looking carefully at the keying characteristics of your K2 -
>perhaps the weight menu setting or the 8R delay parameter, but that is only
>another quick guess on my part.
>
>73,
>Don W3FPR
>
>> -----Original Message-----
>>
>> Hi Don, thanks for responding,
>>
>> Short coax cable between K2 Ant > Txin IF1
>> Antenna is connected to transverter Ant plug.
>>
>> Control cable is connected between K2 and transverter
>>
>> SSB on 6 meter works fine so cables are ok. Keyer is working fine on HF
>> bands.
>>
>> Relay is clicking in the transverter when PTT is make by keying my bencher
>> which is connected to the K2 keyer input jack.
>>
>> Hope this is more clear now Don.
>>
>>