I looked at the CommAmps website, nowhere could I find the word 'Linear' or any
IMD spec's. I'm sure that they are linear to a degree, but would sure like to
see it spec'd.
-Mike-
WA6ZTY
>________________________________
> From: Mike & Becca Krzystyniak <k9mk@flash.net>
>To: 'Larry Stowell' <lclarks@nc.rr.com>; towertalk@contesting.com
>Sent: Saturday, October 26, 2013 4:12 PM
>Subject: Re: [TowerTalk] LPDA'S and single SS devices amps
>
>
> There is another generation of LDMOS devices that were introduced in the
>past year or so.
> Exception robustness on extreme SWR's at all phase angles.
> These devices are the generation of parts that will meet the needs of most
>users.
>
> On the SSPA front, check out http://www.commamps.com/
>
> Bobby in introducing a dual pallet solution on an HF-6M amp, offers like
>solutions at 2M and higher. My take is it should be comparible to the
>Dishtronix in capability, smaller in size, and like the Dishtronix it has the
>ability to keep the power at 1500 watts into all phase angles (typical SWR's).
>
>Mike K9MK
>
>
>
>-----Original Message-----
>From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Larry
>Stowell
>Sent: Saturday, October 26, 2013 5:35 PM
>To: towertalk@contesting.com
>Subject: [TowerTalk] LPDA'S and single SS devices amps
>
>I have to agree with Steve my T-8 is great across the “bands” I started with a
>C31XR and it was good on 20 and 10 but terrible on 15 very limited bandwidth.
>I replaced it with a 4L Steppir with the 40m it was a great antenna worked
>well until Zeus intervened. The only thing was it was heavy and floppy, a lot
>of torque. I had a new one in hand $3500 (thanks insurance company) looked up
>at the tower and sold it bought the T-8 $800 half the weight and not floppy
>works well.
>
>
>Rick I disagree with your statement. As a owner of a Tennadyne T-10 and
>currently a T-12 your statement is flat out wrong. I swept my T-12 with my rig
>expert AA-230 analyzer and it was below 2-1 across the 13-30 mhz. range. Not
>sure what you are talking about, OR WHAT BRAND. But to say mediocre SWR is a
>false statement.
>
>73,
>Steve W1DXH
>
>
>Dick take a look at at http://expertampsusa.com/ The talk about a new model
>1.3K-FA using one device.
>
>
>I would be curious to see how these LDMOS devices perform. Has anyone any data
>on the M2 boxes they sell for 6 and 2 ?
>
>An HF Amp, using one or two of these devices would be very interesting.
>
>73, Dick, W1KSZ
>
>
>73
>Larry K1ZW
>Durham, NC
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