[Elecraft] K3 transmit out of band question [ANSWERED]

[wp4cw]

Bert Rollen <rollen at comcast.net> wrote:

>Thanks David,
>
>I do not need 27 Mhz, (just need lower end of 26 Mhz) so hopefully all would
>work fine.
>
>In fact, I do not need the PA enabled at all.
>
>I will drop Elecraft a note soon.  (I do, BTW, have the KBPF3.)
>
>One question perhaps may still be answered here; would I have to have a
>special version of firmware each time the same is updated?  Or is the
>unlocking software a one-time application?
>
>Bert
> 
>Bert Rollen, PMP
>rollen at comcast.net
>865-599-6074
>
>
>-----Original Message-----
>From: David Anderson [mailto:gm4jjj at yahoo.co.uk] 
>Sent: Friday, February 26, 2016 3:11 AM
>To: Bert Rollen <rollen at comcast.net>
>Subject: Re: [Elecraft] K3 transmit out of band question [ANSWERED]
>
>Hi Bert,
>
>As I understand it, and this is only what I have gleaned from others, is
>that in order to TRANSMIT out of band you need the unlocking software (for
>MARS frequencies etc) which Elecraft can supply if you explain why you need
>it. I believe it is more or less general coverage transmit out of band, and
>if you are a good bit out of band the KBPF3 will be required as well.
>
>The only fly in the ointment is that 27 MHz is never properly unlocked in
>case CB guys try to use the rig, and the power amplifier isn't enabled for
>27 MHz (don't know the exact frequency limits). However this probably means
>that the transverter ports would still work at those frequencies.
>
>Best to drop a line to Elecraft Support or phone and ask the question.
>
>Hope it goes well.
>
>73 from David GM4JJJ
>
>> On 26 Feb 2016, at 02:45, Bert Rollen <rollen at comcast.net> wrote:
>> 
>> Rats.  I was hoping for a broader answer.  
>> 
>> I have a custom 432 DEMI transverter with a *26* Mhz IF.  
>> 
>> Any ideas how well / if the K3 transverter output would work on 26 
>> Mhz?  (I have the KBPF3)
>> 
>> Thanks,
>> 
>> Bert - K4AR
>> 
>>  
>> Bert Rollen, PMP
>> rollen at comcast.net
>> 865-599-6074
>> 
>> 
>> -----Original Message-----
>> From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of 
>> David Anderson
>> Sent: Thursday, February 25, 2016 12:31 PM
>> To: Elecraft at mailman.qth.net
>> Subject: Re: [Elecraft] K3 transmit out of band question [ANSWERED]
>> 
>> Elecraft have confirmed
>> 
>> "You would not need to use the KBPF3 for only 50 kHz out of band on 20M"
>> 
>> Great news.
>> 
>> Thanks to all you great folks.
>> 
>> 73 from David GM4JJJ
>> 
>>> On 25 Feb 2016, at 13:40, David Anderson <gm4jjj at yahoo.co.uk> wrote:
>>> 
>>> Thanks also to Ken K3IU who has tested his K3 with and without the 
>>> general
>> coverage bandpass filter enabled and found no difference in receive 
>> sensitivity between 14.350and 14.400.
>>> 
>>> Question answered!
>>> 
>>> 73 from David GM4JJJ
>>> 
>>>> On 25 Feb 2016, at 12:46, David Anderson <gm4jjj at yahoo.co.uk> wrote:
>>>> 
>>>> Perfect many thanks Don.
>>>> 
>>>> 73 from David GM4JJJ
>>>> 
>>>>> On 25 Feb 2016, at 12:17, Don Wilhelm <w3fpr at embarqmail.com> wrote:
>>>>> 
>>>>> David,
>>>>> 
>>>>> Transmission only 50 kHz above the ham band should not be a 
>>>>> problem.  If
>> you see a dropoff in receive sensitivity, than add the KBPF3.
>>>>> 
>>>>> 73,
>>>>> Don W3FPR
>>>>> 
>>>>>> On 2/25/2016 4:02 AM, David Anderson wrote:
>>>>>> Still not got a definitive answer to my question, which I repeat:
>>>>>> 
>>>>>> K3 - Do I require the general coverage bandpass filter option to 
>>>>>> allow
>> transmission just for an extra 50 kHz above 14.350?  ( provided the 
>> radio is unlocked for transmit beyond the ham bands).
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