Looking forward to the IC 9700- I just put my CC in after having a reservation at DXE for nearly two years!
Going to use a 70Ah AGM to run mine. It is charged with an Icom 126 PS via a West Mtn Radio Epic PwrGate. It is very quiet, but if it does become a problem, I can just turn it off temporarily.
I do have a 35amp Pyramid linear supply which is very RF quiet, but weighs a ton and takes a lot of valuable space in my shack. So it’s for sale.
Dan
Sent from here. NM3A
On Feb 10, 2019, at 13:53, Paul Stoetzer [email protected] wrote:
My RS-35M has served me well for nearly 19 years, so I'll add to that recommendation.
73,
Paul, N8HM
On Sun, Feb 10, 2019 at 1:28 PM Jim Sanford [email protected] wrote:
I have several RS35Ms and they have been trouble-free.
AFter an ARRL review several years back, I tried an SS-30. (The Astrons were significantly quieter than anything else that they tested.) No RF noise that I could detect. That said, I have not put a scope on the DC lines, but will when I get a chance.
I have bought several more SS-30s and had no noise problem with them. So, for Field Day and PA QSO Party, I carry a switcher. (Weight!!)
Good luck & very 73,
Jim
On 2/10/2019 1:16 PM, Bob Hammond wrote: Thanks! Astron it is.
Bob W7OTJ
On Sun, Feb 10, 2019 at 8:56 AM David J. Schmocker [email protected] wrote:
Bob: I echo Frank¹s good input. I would append this with recommendation to use a linear (not switching) Astron Power supply because they¹re electrically quiet. If your P/S needs to power the radio only, an Astron RS-35M would be large enough. On the other hand, if you also need to power other devices (such as linear power amplifier), then you¹ll need to go bigger or use multiple RS-35Ms, etc. Remember the ratings on these P/Ss are Intermittent Carrier as used in Amateur Service (ICAS) meaning 50% (approx.) duty cycle.. Great for CW or SSB. However for any full duty cycle mode such as WSJT, FM? etc, then you need to derate the power supply so it¹s capabilities are not exceeded. Switch-mode Power Supplies (switching supplies or 'switchers¹) are smaller and lighter weight with the trade-off that they generate electrical noise (because of how they regulate the output level) and inherently are noisy. Linear supplies are bigger and heavier (and less power-efficient) but for those trades, one gets absolute electrical quiet performance because they don¹t hot-switch power signals away from a zero-crossing. If you wish to see an animated Œhow switching power supplies work¹ video (approx. 14 minutes), here¹s one I share when explaining this concept. https://www.youtube.com/watch?v=vwJYIorz_Aw
Very 73,
Dave KJ9I
On 2/10/19, 10:32 AM, "AMSAT-BB on behalf of Frank" <[email protected] on behalf of [email protected]> wrote:
I have used Astron power supplies for years. Pick the appropriate current rating.
Frank K6FW
On Feb 10, 2019, at 7:15 AM, Bob Hammond [email protected] wrote:
I'm ready to order mine along with a power supply. Any suggestions on PS?
Bob W7OTJ
> On Sat, Feb 9, 2019 at 8:21 PM Thomas Schaefer [email protected] wrote: > > FYI - When I ordered mine from DXEngineering (due to the reservation I > placed), they said if the price drops from the $2098 before it ships, > it > will sell for the lower price. That also do not charge one¹s credit > card > until it ships. > > Tom NY4I > >> On Feb 9, 2019, at 9:44 PM, radiomb [email protected] wrote: >> >> Just purchased a IC9700 today at Hamcation. It was great to see one >> in > person. I got it for $1995. Icom said all back orders should be filled > by > end of April. They said they should have enough in stock so that anyone > that wants one at Dayton can get it. I was happy to get it for $1995. > No > tax or shipping. >> _______________________________________________ >> Sent via [email protected]. AMSAT-NA makes this open forum available >> to all interested persons worldwide without requiring membership. > Opinions expressed >> are solely those of the author, and do not reflect the official views >> of > AMSAT-NA. >> Not an AMSAT-NA member? Join now to support the amateur satellite > program! >> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb > _______________________________________________ > Sent via [email protected]. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. > Opinions > expressed > are solely those of the author, and do not reflect the official views > of > AMSAT-NA. > Not an AMSAT-NA member? Join now to support the amateur satellite > program! > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb > _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb