[TenTec] SOTA RADIO

rick@dj0ip.de Rick at DJ0IP.de
Fri Mar 18 04:42:44 EDT 2016


Nice.  What year was that photo taken?

I bought the 505, then modified the SSB Gen board, replacing the 4 crystals
filter with an XF9-B 8 pole SSB filter, which at that time was the best SSB
filter you could buy (for 9 MHz).

Then I bought a new 509, but migrated the SSB Gen board from the 505 to the
509 because of the filter.
Then I built an audio filter and mounted it inside the radio.
Finally I added a 6-pole 500 Hz Xtal filter (from Yaesu).

Kept it for 20 years and was all over Europe with it, on mountain tops and
sandy or rocky beaches.
One of my favorite portable locations was the Isle of Man.
See: http://www.dj0ip.de/my-expeditions/isle-of-mann-1992/ 


73 - Rick, DJ0IP
(Nr. Frankfurt, Germany)


-----Original Message-----
From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Tim
Sent: Friday, March 18, 2016 3:05 AM
To: tentec at contesting.com
Subject: [TenTec] SOTA RADIO


Rick,


The 509 was a fun radio. I bought one new when my friends were buying the
TS-520 and 101E.

http://www.ke4ke.com/wp-content/uploads/2010/08/Yosemite2.jpg

I ran it at Yosemite with out the amp.


Tim
KE4KE


> Message: 1
> Date: Thu, 17 Mar 2016 08:28:44 +0100
> From: "rick at dj0ip.de" <Rick at DJ0IP.de>
> To: "'Discussion of Ten-Tec Equipment'" <tentec at contesting.com>
> Subject: Re: [TenTec] SOTA RADIO
> Message-ID: <000801d1801e$a465e350$ed31a9f0$@de>
> Content-Type: text/plain;	charset="us-ascii"
>
> BRING BACK THE 509!
>
> With the dial lamps switched off, it drew only 160 mA on receive.
> There was a slide switch on the back panel for switching the lamps on 
> or off.
>
> I added a mod to my Omni (A - analog) that did this.
> It drew only 350 mA on receive.
> A 24 hour contest (CW) was just doable off of a motorcycle battery.
> Always had to push-start the bike afterwards.
>
> If you are doing long term battery operation, this makes a huge 
> improvement in battery life.
> I ran my Omni off of batteries for 10 days while on a DX-pedition.
> Ran it at 50w power with the dial lamps switched off.
>
> Many of today's "cool" radios such as the ELAD FDM-DUO are real 
> Current Hogs and draw an amp or more on receive.
>
> 73 - Rick, DJ0IP
> (Nr. Frankfurt, Germany)
>
>
> Annan, etc.
>

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