Also add TR-851E and TR-751E… worked perfectly for me in the old times of KO-23,KO-2,UO-22….

Antonio-EA1IW

 

 

De: Ryan Butler <[email protected]>
Enviado el: jueves, 25 de marzo de 2021 13:37
Para: Amsat - BBs <[email protected]>
Asunto: [AMSAT-BB] Re: 9k6 Radios

 

I'd add the IC-821H to the older rig list, used to use one on GO-32 a long time back.

 

 

Ryan, NF0T

 

 

On Thu, Mar 25, 2021 at 7:26 AM Mark L. Hammond <[email protected]> wrote:

Hi David and all--

 

I share the sentiment about how unfortunate and sad that the IC-9700 will not TX 9600 bps.   This is really a shortcoming.  Just the other day I got an email from a couple of Falconsat-3 satellite ops from Spain, who are drafting a letter that looks like it's intended to go to Icom, essentially about this very issue, and a few others they have observed.  I expect that I am going to join as a signatory in the end.  If we do do get a grassroots effort to try and demonstrate how many users need this feature, we might get them to fix in firmware, if that's possible (surely it is!).   If this develops into a "sign the petition" thing, I'll let people know.   They may not appreciate the number of people that want 9600.  Doesn't the EM community use a software that works at 9600?  Vari?  Anyhow...to the point! 

 

Current production rigs for full duplex 9600?  People are reporting success with some of the dual band mobile FM radios.  The Kenwood D-710 family is one such (in the Journal, right?).   Not much to pick from, really.

 

So used radios:

 

IC-910

IC-9100

TS-2000(x)

FT-736R

TS-790A

FT-847

 

 

Those are what I'd recommend people to look for.  OR--many older FT-736R radios have/are showing up on the market as people upgrade to the 9700 in particular.  As I recall, that radio usually required an IF filter upgrade...?  The TS-790A is an easy mod to 9600, have done to at least of those rigs over the years.

 

73,

 

 

Mark L. Hammond [N8MH]

AMSAT Director and Command Station

 

 

 

On Thu, Mar 25, 2021 at 7:48 AM PE0SAT | Amateur Radio via AMSAT-BB <[email protected]> wrote:

Kenwood TS-2000(x)

The only challenge is automatic doppler control and the use of the internal modems at the same time.

So connect and external modem and you are good to go.

Jan PE0SAT

On 25-03-2021 11:10, David G0MRF via AMSAT-BB wrote:

I've had a mail from a Cubesat group asking for recommendations for a 9k6 capable VHF / UHF

Transceiver.   The only advice I can offer as an IC9700 owner is.....Don't buy one of these !

 

I'm aware the IC910 was a favourite ground station radio, but are there other radios that can operate 9k6 without serious modification ?

Some handhelds probably work well these days (Kenwood?) but I suppose for satellite use, the ability to track Doppler is probably important. So a VFO or small steps.

 

Thanks

 

David G0MRF

 


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