[600MRG] The need to transceive

[Roger Graves]

John,
Great! That should save you a lot of work!
I look forward to seeing you on 630 soon.
If you want to correspond with the two guys I know with 6700’s that told me they were getting the MF Solutions transceiver, let me know and I will pass along their email addresses.
73,
Roger

On Nov 2, 2017, at 2:37 PM, John Harper <johnae5x at gmail.com> wrote:

> There is indeed a rx antenna jack on my Flex but I didn't know this optional capability existed with the MF Solutions amp - just re-read the manual and it looks like I'll be good to go on transceiving once I install that option! I'll order the parts asap.
> 
> Thanks again for all the suggestions and 73,
> 
> 
> John AE5X
> https://ae5x.blogspot.com
> 
> 
> On Thu, Nov 2, 2017 at 2:34 PM, Roger Graves <ve7vv at shaw.ca> wrote:
> John,
> 
> Is there a receive antenna jack? That is what I was thinking the guys with the 6700 would be using. The MF Solutions has an option to switch the TX antenna to another jack on receive, which could be connected to a receive antenna jack on the Flex. Possible with your rig?
> 
> Roger
> 
> On Nov 2, 2017, at 12:04 PM, John Harper <johnae5x at gmail.com> wrote:
> 
>> Hi Roger, I'm limited to using the transverter output for the 80m drive signal. If I used the regular output I would not be able to receive since the transverter would be inline. Crossband operation still uses only one antenna, at least on the Flex 6300 - the higher end Flexes may be different.
>> 
>> 
>> John AE5X
>> https://ae5x.blogspot.com
>> 
>> 
>> On Thu, Nov 2, 2017 at 1:40 PM, Roger Graves <ve7vv at shaw.ca> wrote:
>> John,
>> 
>> If you need 80m drive, then do you not have 100W output available, which can be reduced to 1/2W?
>> I know of Flex6700 owner who is planning on using the MFSolutions transverter with his Flex, without any other amp stage.
>> You just operate “crossband”, listening on 630, transmitting on 80.
>> Or have I misunderstood something here?
>> 
>> Roger
>> 
>> On Nov 2, 2017, at 11:15 AM, John Harper <johnae5x at gmail.com> wrote:
>> 
>>> Hi Roger,
>>> 
>>> I'm using the amp from WA3ETD which requires an 80m input:
>>> http://njdtechnologies.net/the-mf-solutions-630-meter-transmit-downconverter/
>>> 
>>> I'm currently looking at small QRP transmitters since I need an 80m signal to drive the amp. A few kits are available and I suppose I could just use the components of the final 2N222 or 3907 or whatever, omitting the oscillator circuitry. I built many of the SoftRock kits a few years ago but eventually sold them.
>>> 
>>> 73 - John
>>> 
>>> On Thu, Nov 2, 2017 at 12:52 PM, Roger Graves <ve7vv at shaw.ca> wrote:
>>> John,
>>> 
>>> Which amp do you have? I have a 25W one that as supplied requires 500 mW drive, if the 6dB attenuator were removed it would be 250 mW, if the 1:1 input transformer were replaced with a stepup design (mosfets have high input Z on 630) I think it might get down to 25 mW. So you might not need an extra amp stage if your amp is similar.
>>> 
>>> The SoftRock RXTX uses a 2N2222 for the driver stage, you could look at the schematic of that for ideas and see my mod for a MF/LF transformer design. 
>>> http://qsl.net/v/ve7vv//Files/RXTX LF-MF Modification.pdf
>>> 73,
>>> Roger
>>> 
>>> On Nov 2, 2017, at 9:45 AM, John Harper <johnae5x at gmail.com> wrote:
>>> 
>>>> The transverter output on my Flex is 10-20 mW - the required RF level into
>>>> my 630m amplifier is 150-500 mW.
>>>> 
>>>> Does anyone know of a schematic/kit of a low-level amplifier that would be
>>>> suitable for raising the transverter's output to the required level?
>>>> 
>>>> -- 
>>>> 
>>>> John AE5X
>>>> https://ae5x.blogspot.com
>>>> _______________________________________________
>>>> 600MRG mailing list
>>>> 600MRG at w7ekb.com
>>>> http://w7ekb.com/mailman/listinfo/600mrg_w7ekb.com
>>> 
>>> 
>>> 
>>> 
>>> -- 
>>> 
>>> John AE5X
>>> https://ae5x.blogspot.com
>>> 
>> 
>> 
> 
>