I lost some information once published on the BB.
What FM hand helds work duplex 70 cm and 2 meter for OSCARS?
Does anyone have a preference???
Rich W4BUE
The only current production model that works for Mode J full duplex is the Kenwood TH-D7A2. There are few other full duplex handhelds on the market, but they all suffer from desense on 70cm when transmitting on 2m.
The other handhelds may be adequate for the Mode B FM transponders on EO-80 and the Fox-1 series, but they will not work for full duplex on SO-50.
73,
Paul, N8HM
On Fri, Sep 12, 2014 at 8:12 AM, Rich/wa4bue richard.siff@verizon.net wrote:
I lost some information once published on the BB.
What FM hand helds work duplex 70 cm and 2 meter for OSCARS?
Does anyone have a preference???
Rich W4BUE _______________________________________________ Sent via AMSAT-BB@amsat.org. 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://amsat.org/mailman/listinfo/amsat-bb
At this point a pair of $40 Baofengs would be the best, most economical solution for full duplex.
73, Drew KO4MA
Sent from my iPhone
On Sep 12, 2014, at 8:18 AM, Paul Stoetzer n8hm@arrl.net wrote:
The only current production model that works for Mode J full duplex is the Kenwood TH-D7A2. There are few other full duplex handhelds on the market, but they all suffer from desense on 70cm when transmitting on 2m.
The other handhelds may be adequate for the Mode B FM transponders on EO-80 and the Fox-1 series, but they will not work for full duplex on SO-50.
73,
Paul, N8HM
On Fri, Sep 12, 2014 at 8:12 AM, Rich/wa4bue richard.siff@verizon.net wrote:
I lost some information once published on the BB.
What FM hand helds work duplex 70 cm and 2 meter for OSCARS?
Does anyone have a preference???
Rich W4BUE _______________________________________________ Sent via AMSAT-BB@amsat.org. 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://amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. 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://amsat.org/mailman/listinfo/amsat-bb
Is that the same as the Kenwood TH-72A? http://www.aesham.com/multi-band/kenwood-th-d72a/
Rolf NR0T Amsat #38889 Amsat-UK e-Member
On Fri, Sep 12, 2014 at 7:18 AM, Paul Stoetzer n8hm@arrl.net wrote:
The only current production model that works for Mode J full duplex is the Kenwood TH-D7A2. There are few other full duplex handhelds on the market, but they all suffer from desense on 70cm when transmitting on 2m.
The other handhelds may be adequate for the Mode B FM transponders on EO-80 and the Fox-1 series, but they will not work for full duplex on SO-50.
73,
Paul, N8HM
On Fri, Sep 12, 2014 at 8:12 AM, Rich/wa4bue richard.siff@verizon.net wrote:
I lost some information once published on the BB.
What FM hand helds work duplex 70 cm and 2 meter for OSCARS?
Does anyone have a preference???
Rich W4BUE _______________________________________________ Sent via AMSAT-BB@amsat.org. 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://amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. 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://amsat.org/mailman/listinfo/amsat-bb
Yeah, I screwed up the model number!
On Fri, Sep 12, 2014 at 9:48 AM, Rolf Krogstad rolf.krogstad@gmail.com wrote:
Is that the same as the Kenwood TH-72A? http://www.aesham.com/multi-band/kenwood-th-d72a/
Rolf NR0T Amsat #38889 Amsat-UK e-Member
On Fri, Sep 12, 2014 at 7:18 AM, Paul Stoetzer n8hm@arrl.net wrote:
The only current production model that works for Mode J full duplex is the Kenwood TH-D7A2. There are few other full duplex handhelds on the market, but they all suffer from desense on 70cm when transmitting on 2m.
The other handhelds may be adequate for the Mode B FM transponders on EO-80 and the Fox-1 series, but they will not work for full duplex on SO-50.
73,
Paul, N8HM
On Fri, Sep 12, 2014 at 8:12 AM, Rich/wa4bue richard.siff@verizon.net wrote:
I lost some information once published on the BB.
What FM hand helds work duplex 70 cm and 2 meter for OSCARS?
Does anyone have a preference???
Rich W4BUE _______________________________________________ Sent via AMSAT-BB@amsat.org. 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://amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. 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://amsat.org/mailman/listinfo/amsat-bb
The new Wouxun KG-UV8D is being advertised as full-duplex. Don't know whether it suffers desense or not. I used to have a Yaesu FT-470 that worked quite nicely, and currently have an Alinco DJ-G5 that seems to get the job done just fine.
George, KA3HSW
----- Original Message ----- From: "Paul Stoetzer" n8hm@arrl.net To: "Rich/wa4bue" richard.siff@verizon.net Cc: amsat-bb@amsat.org Sent: Friday, September 12, 2014 7:18 AM Subject: Re: [amsat-bb] Hand helds for FM birds
The only current production model that works for Mode J full duplex is the Kenwood TH-D7A2. There are few other full duplex handhelds on the market, but they all suffer from desense on 70cm when transmitting on 2m.
The other handhelds may be adequate for the Mode B FM transponders on EO-80 and the Fox-1 series, but they will not work for full duplex on SO-50.
73,
Paul, N8HM
--- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com
http://forums.qrz.com/showthread.php?437813-Wouxun-KG-UV8D-for-SO-50-Sure-bu...
On Thu, Sep 18, 2014 at 9:04 PM, George Henry ka3hsw@att.net wrote:
The new Wouxun KG-UV8D is being advertised as full-duplex. Don't know whether it suffers desense or not. I used to have a Yaesu FT-470 that worked quite nicely, and currently have an Alinco DJ-G5 that seems to get the job done just fine.
George, KA3HSW
----- Original Message ----- From: "Paul Stoetzer" n8hm@arrl.net To: "Rich/wa4bue" richard.siff@verizon.net Cc: amsat-bb@amsat.org Sent: Friday, September 12, 2014 7:18 AM Subject: Re: [amsat-bb] Hand helds for FM birds
The only current production model that works for Mode J full duplex is the
Kenwood TH-D7A2. There are few other full duplex handhelds on the market, but they all suffer from desense on 70cm when transmitting on 2m.
The other handhelds may be adequate for the Mode B FM transponders on EO-80 and the Fox-1 series, but they will not work for full duplex on SO-50.
73,
Paul, N8HM
This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com
Sent via AMSAT-BB@amsat.org. 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://amsat.org/mailman/listinfo/amsat-bb
Hi George!
Thanks to Stefan VE4NSA for referring to the QRZ.com forum discussion I started about this radio and working SO-50, shortly after the last Hamvention. Rather than having to wade through all those posts, here's a summary...
The KG-UV8D has desense when transmitting on 2m and trying to receive SO-50's 70cm downlink. It works better if the 70cm signals are stronger, like when using this HT as a cross-band receiver to reach a far-off repeater. Full- duplex operation on SO-50 aside, the KG-UV8D's 70cm receiver is good for receiving SO-50. Make sure to use the 2.5 kHz tuning steps with this radio. There are points in SO-50 passes where the KG-UV8D won't receive the downlink, when it appears to be in between the two frequencies using 5 kHz tuning steps.
At the ARRL convention in July, I was able to test my KG-UV8D with a Fox-1 prototype on display at the AMSAT booth. The Fox-1 prototype was using the same frequency pair as the Fox-1A satellite - uplink on 435.180 MHz, downlink on 145.980 MHz. No desense issues were heard when transmitting on 435.180 MHz and simultaneously receiving the 145.980 MHz downlink. It worked well, and the radio sounded well through the prototype. I reduced my transmit power to 1W, and the prototype was using a dummy load as its antennas, in an attempt to better simulate working a satellite in orbit.
I can't wait to get our Fox-1 satellites in orbit. Radios like the KG-UV8D, and others like the IC-W32A, will be great for working Fox-1 satellites full-duplex. This will be even more important, when transmitting on 70cm to Fox-1 satellites instead of 2m to SO-50.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/
On Fri, Sep 19, 2014 at 2:04 AM, George Henry ka3hsw@att.net wrote:
The new Wouxun KG-UV8D is being advertised as full-duplex. Don't know whether it suffers desense or not. I used to have a Yaesu FT-470 that worked quite nicely, and currently have an Alinco DJ-G5 that seems to get the job done just fine.
participants (7)
-
Andrew Glasbrenner -
George Henry -
Patrick STODDARD (WD9EWK/VA7EWK) -
Paul Stoetzer -
Rich/wa4bue -
Rolf Krogstad -
Stefan Wagener