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Thread: KX155 VHF installation

  1. #1
    Join Date
    Jul 2013
    Location
    florence
    Posts
    2

    Default KX155 VHF installation

    Hi,
    I would like to install on my Pa-22 160 a KX155 instead of old KX170
    i would like to know if is available an stc
    Thank you in advance
    Mirko Mattesini

  2. #2
    Join Date
    Nov 2006
    Location
    Mason, Ohio
    Posts
    354

    Default

    Mirko,

    You may not need a STC or even TSO approved equipment for a radio installation. Equipment that meets TSO requirements is preferred, which the KX155 is. This instrumentation may be considered a minor alteration and be completed with just a log book entry. I have attached a flyer that was made up to address the documentation requirements of certain equipment installations. Part 91.205 states that for IFR flight "Two-way radio communications system and navigational equipment appropriate to the ground facilities to be used." is required. There are no TSO or approval requirements stated. For VFR flight, a radio is not required equipment. Take a look at the attached brochure and you may find the answers to many of your questions. It goes through the process of determining what is a major and minor alteration and the documentation requirements. If you are changing the structure that supports your radio and you meet the requirement of AC 43.13-2B you can file a 337 quoting the approved data and send it in. An alteration using approved data does not require FAA approval.

    Tom Anderson
    Attached Files Attached Files

  3. #3
    Join Date
    Sep 2013
    Location
    Santa Marta, Colombia, South America
    Posts
    13

    Default KX-155 Alternative

    Hi mirkomattesini,
    I'm a semi-retired Avionics Consultant with over $20 Million in personal avionics sales. I would like to suggest you look at the Michel MX-170B or C as an alternative to the KX-155. The "math" alone speaks volumes here. I'm assuming you currently have a KX-170B installed.

    Used certified KX-155 with CDI: about $ $2800-3000 plus about $700 to install. Total about $3600 installed. 90 day warranty! Note, KX-155's have been around for more than 25 years. There great radios but they have a display failure problem. Compare.

    Factory New Michel MX-170C @ $ 1795 plus shipping. 2-year warranty. Slides directly into your existing KX-170B installation and uses the same indicator. Is 760 channel and has memory storage on com and nav side. More transmit power than your KX-170B!

    I've sold a lot of these and most customers are very happy with them.
    Check it out and save the money. the MX-170C actually does more for 1/2 the money.

    Note, as owner of the aircraft, I believe you can make your own Log Book entry.
    Bob Hart www.AvionixHelp.com

  4. #4
    Join Date
    Aug 2008
    Location
    King Salmon, AK
    Posts
    56

    Default

    I've looked at the MX170C as my likely future option, as the KX170B's in my bird won't last forever. Trolling the interwebs, I came across a few gripes, so was curious how customers have responded. Helps to hear that your clientele is happy.

  5. #5
    Join Date
    May 2006
    Location
    Shanty Bay, Ontario, Canada
    Posts
    619

    Default

    I just installed a 155 with a 208 indicator. I paid $700.00 or the radio and $300.00 for the indicator. And $200 for the the wiring. Had it installed, so end price is around $1,500. Shop around you can pickup a good radio for a very good price. I had the TKM MX12 before and it was a waste of time, so don't go there.

    Peter

  6. #6
    Join Date
    May 2006
    Location
    Shanty Bay, Ontario, Canada
    Posts
    619

    Default

    I just installed a 155 with a 208 indicator. I paid $700.00 or the radio and $300.00 for the indicator. And $200 for the the wiring. Had it installed, so end price is around $1,500. Shop around you can pickup a good radio for a very good price. I had the TKM MX12 before and it was a waste of time, so don't go there.

    Peter

  7. #7
    Join Date
    May 2006
    Location
    Shanty Bay, Ontario, Canada
    Posts
    619

    Default

    Quote Originally Posted by Flyboy1950 View Post
    Hi mirkomattesini,
    I'm a semi-retired Avionics Consultant with over $20 Million in personal avionics sales. I would like to suggest you look at the Michel MX-170B or C as an alternative to the KX-155. The "math" alone speaks volumes here. I'm assuming you currently have a KX-170B installed.

    Used certified KX-155 with CDI: about $ $2800-3000 plus about $700 to install. Total about $3600 installed. 90 day warranty! Note, KX-155's have been around for more than 25 years. There great radios but they have a display failure problem. Compare.

    Factory New Michel MX-170C @ $ 1795 plus shipping. 2-year warranty. Slides directly into your existing KX-170B installation and uses the same indicator. Is 760 channel and has memory storage on com and nav side. More transmit power than your KX-170B!

    I've sold a lot of these and most customers are very happy with them.
    Check it out and save the money. the MX-170C actually does more for 1/2 the money.

    Note, as owner of the aircraft, I believe you can make your own Log Book entry.
    Bob Hart www.AvionixHelp.com
    Bob,can you supply us some pictures, the MX-170C could of great value to our members, with the idea of just sliding in, is perfect.

    Peter

  8. #8
    Join Date
    Sep 2013
    Location
    Santa Marta, Colombia, South America
    Posts
    13

    Default MX-170B (or C)

    Hi Peter,
    Thanks for your request. FYI, I check your website three times a week for avionics questions. Other than the KX-155 question, there hasn't been much. I also write avionics articles for Piper and Cessna Owners Magazines. I did an article recently (already published in the October issue) on "Avionics on a Budget". I address this issue (KX-155 vs. MX-170B/C) in this article. Let me check with Jones Publishing and see if I can release it to you? Send me an email directly if you would? bob@avionixhelp.com Also, How about creating an "Avionics Forum"?
    I'll support it Bob Hart www.AvionixHelp.com

  9. #9
    Join Date
    May 2006
    Location
    Shanty Bay, Ontario, Canada
    Posts
    619

    Default

    I would say that it would OK to start a new thread in the Avionics section.
    The experience levels of members range from new Pilots/Owners to well seasoned Pilots. And, any avionics input would be of great value. Should you have a product to sell, the Board would be interested in you buying ads in the printed SW News, this way your details could be read by all members.

    Peter

  10. #10
    Join Date
    May 2006
    Location
    Shanty Bay, Ontario, Canada
    Posts
    619

    Default

    I would say that it would OK to start a new thread in the Avionics section.
    The experience levels of members range from new Pilots/Owners to well seasoned Pilots. And, any avionics input would be of great value. Should you have a product to sell, the Board would be interested in you buying ads in the printed SW News, this way your details could be read by all members.

    Peter

  11. #11
    Join Date
    Sep 2013
    Location
    Santa Marta, Colombia, South America
    Posts
    13

    Default

    Hi Peter,
    I have been very active on the Piper/Cessna Owners Forums (and others) for two years. From that came the opportunity to write Avionics Articles for them. I would suggest that you take a look at my website: www.AvionixHelp.com I don't solicit business on the forums. My goal is to help and share my experience and advice. I sign off with my website address. Occasionally, someone will come to me from my website after seeing my posts on the forums. You will see that simple advice is always free. if someone seeks a higher level of my expertise and time, I charge a very small fee for that but again, it is never solicited on the forums. Thanks! Bob Hart www.AvionixHelp.com

  12. #12
    OH Flyer Guest

    Default

    Quote Originally Posted by Flyboy1950 View Post
    Hi Peter,
    ... FYI, I check your website three times a week for avionics questions. Other than the KX-155 question, there hasn't been much. I also write avionics articles for Piper and Cessna Owners Magazines. I did an article recently (already published in the October issue) on "Avionics on a Budget". I address this issue (KX-155 vs. MX-170B/C) in this article. ... Also, How about creating an "Avionics Forum"?
    I'll support it Bob Hart www.AvionixHelp.com
    Bob:
    Thanks for checking in to our SWPC Forum and for the avionics advice. Enjoyed your web site, too.
    I have a simple question. What would you recommend to replace a Narco Escort II Com/Nav. It's in a Tri-Pacer, flown VFR only. Only use the Escort II as a #2 Comm to check ATIS/AWOS/ASOS - don't use the Nav function. Replacement units that fit a 3-1/8 or 2.25 inch round hole in the panel that I've researched (Becker, Trig, MGL, Microaire, Dittel, X-Comm) all have built-in intercoms which is not needed at all. Are there round hole VHF Comm radios w/o built-in intercoms? What would you recommend as a quality replacement, most trouble-free, best bang for the buck? Thanks,
    Ralph

  13. #13
    Join Date
    Sep 2013
    Location
    Santa Marta, Colombia, South America
    Posts
    13

    Default Replacement for the Escort II

    Hi OH Flyer,
    Thanks for your question. The comms you describe have intercom capability but require additional wiring and some only provide "hot mic" intercom vs. VOX. That means you're simply turning the intercom on or off and while the intercom is on, radio communications can be affected. It is not necessary to use the internal intercom capability and frankly not the best option anyway. You can still wire any of these to your existing intercom with no problems. Note that Bennett Avionics likely has a good Escort II available and they'll stand behind it with a 90 day warranty. Their showing $695 SV with warranty. If the Escort II is meeting your needs, you can avoid the install cost with this option which is why I suggest it. On the low-end price wise, there is the Flightline FL-760 New around $695. They are distributed by a reputable company and have been around for some years so I suspect they're a decent radio and will do the job. Note that most of these radios have 5 watts of transmitter power which is the same as the Escort. If you want more power, Becker's unit is 8 watts but at twice the price. I've not had a good experience with Microair. XComm is a spin off of that product, both made in Australia. The MGL unit in not certified for use in a certified airplane and is designed for experimental aircraft. I see no need to spend more than $695 for the FL-760. If you like the Escort, Bennett can provide a good used one and the Becker tops the list for quality and power output. Thanks for asking!
    Bob Hart www.AvionixHelp.com

  14. #14
    OH Flyer Guest

    Default

    Thanks for the excellent advice, Bob. It sure helps to cut through all the advertising claims clutter. We'll spread the word about your services to anyone who is shopping for avionics.
    Ralph

  15. #15
    Join Date
    Sep 2013
    Location
    Santa Marta, Colombia, South America
    Posts
    13

    Default Advice.

    Thanks Ralph!
    Bob Hart www.AvionixHelp.com

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