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Latest on 8.33 requirements (merged)

The KX-165A indeed is quite expensive, and other radio’s also benefit from CS-STAN, so that is not a real advantage to the KX-165A. The only good reason to upgrade to a KX-165A is if you have a full king stack and want to keep the King line appearance.

The announced “flat” ARINC radio rack size Trig TY-96 and TY-97 are expected later this year. This will be nice as well, as the TY-91 is quite expensive to install in aircraft with radio rack. A radio which fits a radio rack would be much easier and faster to install.
The TY-91 does a very nice job in old kinds of airplace where their is no radio rack and panel space is limited.

JP-Avionics
EHMZ

Also the Becker AR6403 VHF-com (8.33Khz, standard GA rack size) is aviable soon , and whould have a good price .

Becker is generally quit slow with support. Have had multiple units which required warranty repair, which took week to months. With Garmin the support is generally within a few days, Trig is typically within 1 or 2 days when I had an issue, really wished that all companies would have such good support, and hoping that Trig will keep up that level of support when they are becoming bigger company.

JP-Avionics
EHMZ

8,33 : German authorities are pushing things.

If even a nice country grass runway gets an 8,33 frequency alotted.

EDLF Grefrath

EBZH Kiewit, Belgium

In the future all frequencies will become 8,33 kHz… You will see they accept both 25 kHz and 8,33 kHz for now.
126.705 MHz is a 8,33 kHz frequency, the actual transmit frequency is 126.700 Mz, which is also the frequency they allow in 25 kHz modus.

The 5 in 126.705 indicates it does transmit on 126.700 with reduced bandwidth

JP-Avionics
EHMZ

Not really. It’s frequency 126.700, so can be tuned with any 25Khz radio. They merely point out that if you have an 8.33 radio, you have to tune it to channel 126.705 in order to be on the same frequency.

EDIT: Jesse was quicker.

Last Edited by boscomantico at 25 Sep 19:38
Mainz (EDFZ) & Egelsbach (EDFE), Germany

Thanks for explaining.

EBZH Kiewit, Belgium

boscomantico wrote:

Not really. It’s frequency 126.700, so can be tuned with any 25Khz radio. They merely point out that if you have an 8.33 radio, you have to tune it to channel 126.705 in order to be on the same frequency.

Does this mean it’s two frequencies, or just one where the other is “close enough” to work?

The elephant is the circulation
ENVA ENOP ENMO, Norway

What do you not understand about

to be on the same frequency

?

EBZH Kiewit, Belgium

LeSving wrote:

Does this mean it’s two frequencies, or just one where the other is “close enough” to work?

126.700 and 126.705 are not frequencies, they are “channels”. Both channels use the same frequency — 126.7 MHz — but the bandwidth of the 126.705 channel is narrower than that of the 126.700 channel.

ESKC (Uppsala/Sundbro), Sweden
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