Kenwood: TH-D74A

[Your_account]

Yes i cound not found any info on Kenwood Channel.
Does anyone have it?

 

[kd4efm]

Kenwood Channel? as in Dealer info?

I don't see it in our LMR dealers section, sorry, can't be of any help there. Contact Kenwood EU
if your over there, or Kenwood USA if your in this area or Canada contact Kenwood Canada.


Please see this site for US - English information.
Kenwood TH-D74A D-Star HT

 

[vagrant]

I just re-read his note and I wonder if "Channel" means "Memories". With the MicroSD slot, I am now wondering if it is limited to the size of the card.

---------------
You provided two links to the radio. What information are you looking for?

The user guide and manual can be found via the link you provided. There are also links to the product brochure and a news release.
VHF / UHF • TH-D74E Support • Kenwood Deutschland

The technical data page in the product brochure is very informative and has some information I was looking for. Perhaps your answer is there.
http://kasc4.s8.novenaweb.info/files/prod/3137/11/TH-D74E_deutsch.pdf

If you require further assistance, perhaps contact Kenwood or one of their vendors directly.

 

[Your_account]

If you require further assistance, perhaps contact Kenwood or one of their vendors directly.

lol the never replay...

Translated by Google:

Color display with compass and station information (relative distance, direction and speed) or weather conditions (precipitation, temperature, humidity, wind direction and speed, air pressure)

So what does it mean in realty? It read out Weather Stations on 400Mhz or does it have an internal Sensor?

Memory for 100 fixed, mobile or weather stations and objects

on 400Mhz?!

Built KISS TNC for APRS management on a computer

So what does it mean in realty? What kind of management ?

Quick QSY by use of embedded frequency of a beacon

yes its confusin in german to...
What kind of beacon? I know a "beacon" only on Man over Board Transmitter and SAR stuff?!

Kerchunking

??? Nope that isnt German.

Band B (Subband)

?

FM, NFM, WFM, AM, SSB und CW

So perfect for Aircraft Radio Monitoring Onboard?

In IF OUT mode is an IF signal (12 kHz center frequency at 15 kHz bandwidth) to the Micro-USB port available

??? Nope it makes no sense in German.

I dont understand why it dont support DMR who everyone use here.

 

[AK9R]

The TH-D74 is intended for the Amateur Radio market. It is a dual-band transceiver (which is why it has Band A and Band B) that does analog FM on the 2m, 222 MHz (which is a North American band), and 440 MHz bands (two bands at a time). It also does D-Star digital voice on those bands. It has a full suite of APRS features and it has a built-in AX.25 packet TNC. In addition to transmitting on the amateur bands, it receives AM broadcast, shortwave, VHF aircraft, FM broadcast, and other frequencies.

So what does it mean in realty? It read out Weather Stations on 400Mhz or does it have an internal Sensor?

It receives APRS beacons that contain current weather conditions at the source station and it decodes that weather data to present it on the radios's display.

So what does it mean in realty? What kind of management ?

It means that you can connect a computer running an APRS client program or a packet messaging program and use the radio's internal packet TNC and APRS functions.

What kind of beacon? I know a "beacon" only on Man over Board Transmitter and SAR stuff?!

APRS beacons.

I dont understand why it dont support DMR who everyone use here.

DMR is a digital voice mode designed for commercial use. It has been adapted to amateur radio, but it's not specifically designed for amateur radio. D-Star and System Fusion are digital voice modes designed for amateur radio and Kenwood chose D-Star.

 

[Your_account]

DMR is a digital voice mode designed for commercial use. It has been adapted to amateur radio, but it's not specifically designed for amateur radio.

Here 98% all run as an DMR.

D-Star and System Fusion are digital voice modes designed for amateur radio and Kenwood chose D-Star.

sure but the most Repeater run as an DMR what I see. D-Star is you see only an Kendood thing and DMR is used by more Company.

APRS beacons.

CBAPRS ?

It receives APRS beacons that contain current weather conditions at the source station and it decodes that weather data to present it on the radios's display.

ok Google Maps APRS but I cant see any.

(which is why it has Band A and Band B)

So what does it mean?

And how about 144Mhz Band?
How does it handle with both APRS Freqs?

 

[AK9R]

The TH-D74 is a dual-band radio which means it has two receivers. You can set one band to do 2m analog voice or digital voice and set the other band to do APRS.

 

[Your_account]

You can set one band to do 2m analog voice or digital voice

Set wo what?!

and set the other band to do APRS.

So APRS run on:
144,800 MHz
144,850 MHz
432,500 MHz
438.125 MHz

It can monitor all together?

 

[AK9R]

It can monitor all together?

Scanning while trying to decode APRS usually doesn't work very well as you often miss the first part of the packet.

 

[Your_account]

APRS run on both simultaneously.

 

[AK9R]

No, you can only run APRS on one band at a time.

 

[wd9ewk]

They're talking about the D72's ability to do full duplex, which makes it great for AMSAT work. Early reports are that the D74 lacks full duplex, and so is much less useful as a satellite rig.

You are correct. The TH-D74A does not support cross-band, full-duplex operation like the TH-D72A and other radios have. Couple that with the memory channels working like the TH-D72A (input and output frequencies must be in the same frequency band), you would have to switch between "bands" (VFOs) to work FM satellites with this radio. I have done that with both SO-50 and AO-85. Not the best way to go, working these satellites half-duplex, but it can be done.

For satellite work, the TH-D74A's all-mode receiver is a big improvement over the TH-F6A's all-mode receiver. Sensitivity and selectivity appear to be better in the TH-D74A. I have already used mine to work a few of the non-FM amateur satellites (AO-73, FO-29, XW-2A, XW-2F). The non-smooth tuning knob is not ideal, nor is the smallest tuning step in FINE mode at 20 Hz, but the 20 Hz step is smaller than the smallest step the TH-F6A's all-mode receiver had (33 Hz). The built-in audio recorder is great, since it is a way to capture the audio from the stations I worked through these satellites, without needing to employ a separate audio recorder - something I normally do anyway, instead of trying to remember call signs or write anything down during these passes.

For the 145.825 MHz digipeater on the ISS, all I had to do is define a new packet path "ARISS" in one of the Others packet path locations in the menu. It is like the TH-D72A, since I can switch between the normal "New-N" packet path (I use "WIDE1-1,WIDE2-2" here in Arizona) and the "ARISS" path for spaceborne digipeaters. Then I could transmit my position and comment text through the ISS, and also use APRS messages to make quick contacts with other stations. Typing APRS messages on the TH-D74A's keypad is like sending SMS messages from a old flip-style mobile phone. With that said, the messages I'm exchanging with other stations are usually 4-character messages, my grid locator, and I can type that out quickly (or use a predefined message stored in the HT for that).

I have had my TH-D74A for almost a week now, and I like it. Its features - a cross between the TH-F6A for 3 bands, the TH-D72A for packet/APRS and GPS, and the ID-51A for D-Star - justify the price for me. I'm a little disappointed that this radio doesn't handle cross-band full-duplex operation like the TH-D72A, but overall it is a nice radio.

73!

 

[N4KVE]

Well after the Canadian dollar tanked we are throwing away $35 out of $100. So if $650 US, that puts it close to the $900 Canadian. Either way both are way out of my price range!

Back in the day, when Icom's 1st dual band HT came out, it was $550, US, & it only had 20 memory channels. Then you had to add a PL board, & decent battery, as the one that came with the radio was 300 ma. Fast charger added another $65, so the radio in 1985 was about $700, US. They sold plenty, as there were no $35 throw away radios back then. How much is $700 1985 dollars in today's world? By the way, they sold tons of them. And look how much more this new Kenwood does. So in comparison, it's a BARGAIN. People can go to Walmart, & buy a prepaid smart phone for under $100, yet thousands will wait in line for a week to have that newest Apple, or Samsung smart phone, & can't fork over their $800 fast enough. Makes me go Hmmmmm.

 

[wm8s]

** NOTE: Yahoo! group closing

FYI, I am closing down the Yahoo! group. Somebody started one a week later, and it has more members, so I suppose it makes more sense for the members of the first group to migrate to the second group instead of the other way 'round.

Here is a link to the new group:

https://groups.yahoo.com/neo/groups/Kenwood_TH-D74/info

 

[Your_account]

People can go to Walmart, & buy a prepaid smart phone for under $100, yet thousands will wait in line for a week to have that newest Apple, or Samsung smart phone, & can't fork over their $800 fast enough. Makes me go Hmmmmm.

haha here in austria the cheapest preapid phone cost 20€ and Tousand Min + 1GB + X SMS ~10€/ Month.

 

[N4KVE]

haha here in austria the cheapest preapid phone cost 20€ and Tousand Min + 1GB + X SMS ~10€/ Month.

So is that $10 US, or $500 US?

 

[Your_account]

20€ are ~23$.
So many Company here use Cellphones instead of Radios.
Today I visit an Cinema and the use Radios who makes is a little curios.

 

[USRobotics]

I signed up for the new Yahoo group but didn't get any approval or messages so it's blocked from even reading.

 

[thundermedic]

does anyone have the MARS / CAP mod for the TH-D74a?

 

[mrkelso]

My TH-D74A came in today. Will mess with it tomorrow and get her fired up.