Friday, December 28, 2018
About Uncertified Imported VHF/UHF Transceivers
FCC Bombshell on Chinese Handhelds (#174) video - Thank you for all your countless Ham radio contributions, David. You are the man!
October 2018 Channel Update (APRS, Baofengs, and Buying Used) video - Thank you Michael KB9VBR for all your many contributions to Ham radio as well!
FCC Call with Laura Smith video - Thank you Laura and Lucky225 for your effort to seek further clarity in this significant matter.
ARRL, FCC Discussing Issue of Uncertified Imported VHF/UHF Transceivers - And, thank you ARRL for everything you do! I remain a proud supporter and member and encourage other radio amateurs to do the same.
To begin with, my disclaimer... I am no expert in this matter. I will likely not be unable to answer your questions; legal, technical or otherwise. I am not a lawyer. I am not offering legal advise to anyone, nor trying to influence your choices in any way. I'm simply a licensed amateur radio operator. I operate lawfully within my permitted frequency ranges and follow required protocols. I believe that all licensed Hams strive to operate with that same courtesy and obligation. When mandated, I do and will dutifully comply with the FCC's regulations without hesitation to the best of my understanding. It is our responsibility to comply with these regulations as specified for the greater public good. I'm merely sharing my thoughts and personal understanding about this important subject herein.
The aforementioned FCC mandate (see above link) pertains to some radios built and imported from overseas by manufacturers such as Baofeng, TYT, Hytera and others in reference to their compliance with FCC certification requirements. What seems to be the focus of the FCC's enforcement advisory relates largely to radios being manufactured with extended transmit range capabilities, and the FCC's understandable concern that U.S. operators would be capable of transmitting beyond approved band privileges on these radios, thus creating unauthorized interference on other public and critical non-public frequency bands. Additionally, the concern that "unlicensed" owners are capable of (and may be) purchasing and unlawfully operating such radios without reasonable oversight.
Some [handheld] radios could be or are configured to transmit outside of FCC-certified and/or amateur licensed-privileged ranges, such as the common 2m and 70cm bands; 144.000 thru 148.000 VHF and 430.000 thru 450.000 UHF respectively. Licensed operators are required to operate within frequency ranges permitted to their license(s) [barring imminent danger] and within a radio device's FCC-certified operating ranges to fully comply with current regulations, which would include cessation of all operation and continued import/sale of radio devices that have been deemed non-compliant within the FCC's mandated guidelines. Further licensing and/or certification is required to operate beyond commonly featured [handheld] technician-class frequency ranges in US-governed territories. And, as a VERY pointed reminder to "unlicensed" owners of amateur radio equipment, it is unlawful for any transmit operation (and in some instances any operation whatsoever) of license-required radio equipment without the possession of a valid FCC radio license befitting such equipment within US-governed territories under penalty of law.
These are the very heart of the FCC's initiative and Ham community's current discussion with the FCC about these matters, and perhaps a desire for some self-governance herein. Important questions that have been tendered for further clarification are:
"May such radio equipment with the potential or ability to operate on extended ranges be also allowed to be operated (wherein purchased or owned prior to DA-18-908A1 advisory) by a licensed operator using them exclusively and lawfully within licensed frequency ranges [per Part 97]?"
And, "What steps must be taken to prevent radio equipment requiring a valid FCC license [to operate] from being acquired and/or operated by 'unlicensed' individuals?"
I believe the FCC is addressing these fundamental concerns, and whether it needs to further act to enforce regulation adherence, thus removing any possibility of operator, vendor and manufacturer non-compliance unilaterally. I do not fault the FCC for it's initiative in protecting our airwaves. There is a lot at stake considering the full measure of all amateur, commercial and emergency services making use of radio communication frequencies every day, 24/7. I wholeheartedly respect that and look forward to any added clarification from the FCC upon this matter.
My present advice, solely as one licensed amateur to another, is research your radio device and it's current FCC compliance. Follow all FCC regulations as set forth and operate only FCC-certified radio devices, exclusively within your license privileges, following all operational protocol as designated by these same regulations.
To US vendors of radio equipment, I would encourage you to include a disclaimer on your item sales page(s) that the radio or device presented for sale therein requires a valid FCC license for [transmit] operation, and may NOT be certified for licensed amateur use [where applicable].
While FCC compliance pertains to all analog and digital radio devices, this particular initiative seems to deeply affect many imported transceivers models, some of which are DMR-capable. Bear in mind that the FCC is keeping it's commitment to protect and preserve, not only our niche in amateur radio but, all broadcast frequencies that serve the public, commerce and government. Be patient, be diligent and keep apprised of ongoing changes in the amateur radio service community.
I feel that the licensed Ham radio community is very responsible, self-reliant and personally accountable in adhering to all operating regulations while mutually respectful to broadcast operators globally. I hope that the FCC will see my opinion in the same light and afford us some latitude in self-governance and mutual trust going forward, allowing the continued operation of such aforementioned devices, wherein their purchase predates the DA-18-980A1 enforcement advisory, within the hands of licensed and law-abiding operators.
In the meantime, please consider all your radio choices and operations with an informed conscious and a positive outlook, and stay involved with the Ham radio community as a participating member. A great way to share your support is by joining the ARRL today as a licensed amateur operator.
73,
Patrick, K3NYJ
Disclaimer: All content presented on this site are subjective and solely representative of personal ownership experience and individual understanding of said products and related subject matter described herein. Any and all representations, descriptions and commentaries posted herein are offered from opinion and should not be regarded as expert affidavit or testimony, or as a manufacturer's statement in any way. Please consult with product manufacturers and their approved sources for complete details, specifications and applicable warranties of all products described herein. All photos presented herein are property of this site's moderator and are not public domain.
Wednesday, October 10, 2018
Alinco DJ-MD5T radio review
Alinco DJ-MD5TGP |
The Alinco DJ-MD5T is a dual band 2M/70cm 5W analog and digital DMR handheld transceiver that is compact, lightweight and quite capable. This radio ships with one 1700mAh rechargeable battery, an OEM "high gain antenna", a charging cradle and adapter, USB programming cable, belt clip and wrist lanyard. It is FCC Part 90 approved. Frequency ranges are listed as 136.000 MHz thru 174.000 MHz, and 400.000 MHz thru 480.000 MHz. It also receives FM radio broadcasts ranging from 76.00 MHz to 108.00 MHz. A complete features listing may be found at Alinco.com, DJ-MD5T.
OVERVIEW: Please feel free to watch my basic overview video for this radio, found here. I purchased the DJ-MD5T (with GPS) shortly after it was released in the US, late August 2018. At that time, there were virtually no reviews or user-made reference materials available. This prompted me to write my own product review. Only slightly heavier and thicker than my analog Alinco DJ-500T, it's become my new everyday carry radio. PLEASE NOTE that I've mounted a Comet SMA209J sma-female antenna in place of the OEM antenna (see below photos). The Comet is a three inch 2M/70cm flexible rubber duck antenna... it's 1/4 wave on 2 meters and a 5/8 wave on 70cm. It's gain is 2.15/3.5 dBi respectively and it can handle up to 5 watts. I find it very functional, less obstructive to belt-clip carry, more cosmetically appealing and an affordable add-on to this radio.
All scores are rated 1 through 5.
w/ Comet SMA209J |
Right side DJ-MD5T |
Left side DJ-MD5T |
Back of DJ-MD5T |
CONCLUSION: My overall score is 4.5. I do recommend the Alinco DJ-MD5T, and DJ-MD5TGP. It's exceeded my expectations for an affordable analog/DMR HT radio. For those new to and veterans of amateur radio, this HT is an affordable, capable and attractive radio. Alinco has earned my respect with two excellent HT radios and has made me a fan of the Alinco product line in general. Should you purchase this radio, I hope that you enjoy it as much as I have. I'm glad to have shared my user experience with you here and wish you all the best. Please check back for updates and upcoming videos related to products reviewed on this site.
73,
Patrick, K3NYJ
Disclaimer: All content presented on this site are subjective and solely representative of personal ownership experience and individual understanding of said products and related subject matter described herein. Any and all representations, descriptions and commentaries posted herein are offered from opinion and should not be regarded as expert affidavit or testimony, or as a manufacturer's statement in any way. Please consult with product manufacturers and their approved sources for complete details, specifications and applicable warranties of all products described herein. All photos presented herein are property of this site's moderator and are not public domain.
Thursday, October 4, 2018
Alinco DJ-500T radio review
Front DJ-500T |
The Alinco DJ-500T is a dual band 2M/70cm 5W analog-only handheld transceiver that is compact, lightweight and simple to program/operate. This radio ships with one 1500mAh LI-ion rechargeable battery, an OEM "high gain antenna", a charging cradle and adapter, belt clip and wrist lanyard. It is FCC Part 90 approved. Transmit (TX) ranges are listed as 144.000 thru 148.000 MHz, and 420.000 thru 450.000 MHz. Receive (RX) ranges are listed as 136.000 MHz thru 174.000 MHz, and 400.000 MHz thru 480.000 MHz. It also receives FM radio broadcasts ranging from 76.00 MHz to 108.00 MHz. A complete features listing may be found at Alinco.com, DJ-500T/E , as well as a listing of available accessories.
OVERVIEW: This transceiver has been my daily carry radio for about one year. I routinely wear this on my belt at work and when traveling abroad. Often attached is a low-profile Comet SMA209J flexi-stubby antenna, which works well. I listen to FM broadcast music quietly from the DJ-500T in the workplace while on dual-watch scan of local repeaters. I can get through a ten hour work-shift listening to music (occasionally TXing) with around 25% battery power to spare. I average about four to five hours of battery power under heavy TX and long QSOs. My workplace is a labor-intensive environment and subject to unexpected bumps and collisions. The DJ-500T has proven to be quite durable. After one year of continued carry, mine has only two minor scratches on the speaker grill from hard scrapes against metal loading ramps. Both are barely noticeable. The painted-on "Alinco" brand stamp (top of front face) shows a little wear, but not much. Attached photos were taken right off my hip (no cleaning) to show accurate, present-day radio conditions. This transceiver has not yet failed in it's TX/RX functions, nor it's operating software or firmware. It's shown itself to be reliable in my life's routine activities.
All scores are rated 1 through 5.
Back DJ-500T |
Right DJ-500T |
Left DJ-500T |
VALUE (score 5): As of the posting date of this review, the Japanese-built Alinco DJ-500T was listed at about $100.00 USD. While this is more expensive than other dual-band HTs available (i.e. Chinese-built Baofeng, Pofung, Quansheng), it easily outshines them all in build-quality and functionality in my opinion. Conversely, the DJ-500T is less expensive than other notable manufacture HT radios (i.e. Icom, Kenwood, Yaesu) while still offering a great deal in cost-to-features value overall. I feel that this radio is a solid return on investment, great for new and experienced HAMs alike and continues to serve me reliably as my go-to analog radio.
CONCLUSION: I do recommend Alico DJ-500T. It's exceeded my expectations for the price-point I invested. Straightforward, dependable, compact and easy to use. It's made me a fan of Alinco product line in general. I regard the DJ-500T as my little radio that can. A complete listing of the Alinco DJ-500's feature may be found here. I'd encourage you to consider this transceiver should you be looking for an affordable dual-band analog HT.
73,
Patrick, K3NYJ
Disclaimer: All content presented on this site are subjective and solely representative of personal ownership experience and individual understanding of said products and related subject matter described herein. Any and all representations, descriptions and commentaries posted herein are offered from opinion and should not be regarded as expert affidavit or testimony, or as a manufacturer's statement in any way. Please consult with product manufacturers and their approved sources for complete details, specifications and applicable warranties of all products described herein. All photos presented herein are property of this site's moderator and are not public domain.
Wednesday, October 3, 2018
Alinco DJ-500T and DJ-MD5TGP comparison
Alinco DJ-500T 5W Dual Band transceiver, 2M/70cm analog
Alico DJ-MD5TGP 5W Dual Band transceiver, 2M/70cm analog/digital DMR
Alinco DJ-500T, Alinco DJ-MD5TGP |
Left to right: Alinco DJ-500T, Alinco DJ-MD5TGP (click pictures to zoom).
Please note that the DJ-MD5TGP radio (pictured on right) has an aftermarket antenna attached: the Comet SMA209J three inch 2M/70cm flexible rubber duck antenna... it's 1/4 wave on 2 meters and a 5/8 wave on 440 MHz. Gain is 2.15/3.5 dBi and it can handle up to 5 watts. Both models ship with the same longer OEM antenna shown on the Alinco DJ-500T (pictured on left).
The compact dimensions of both radios are roughly the same. Weight and size are comparable, as are TX/RX audio volumes and twin top dials (channels/volume). Cases and screens are both made of the same resilient plastics. Front panel buttons and top dials operate nicely, and the PTT operates well under ordinary pressure, along with their assignable PF1 and PF2 buttons. The most obvious differences are in their functionality, display screens, front panels and menu systems.
The DJ-500T has been my daily carry for about one year. It's been both durable and reliable. I'm very fond of the DJ-500T. This unit is an analog-only transceiver. It's easy to program, either FPP (front panel programming) or by downloading the free DJ-500 Clone Utility (at bottom of the linked Alinco page). Programming cables are sold separately for this model. It ships with one 1500mAh rechargeable battery, the OEM antenna shown in picture, a charging cradle and adapter, belt clip and wrist lanyard. It's FCC Part 90 approved. Transmit ranges are listed as 144.000 thru 148.000 MHz, and 420.000 thru 450.000 MHz. Receive ranges are listed as 136.000 MHz thru 174.000 MHz, and 400.000 MHz thru 480.000 MHz. It also receives FM radio broadcasts ranging from 76.00 MHz to 108.00 MHz (See more details in my upcoming review of the Alinco DJ-500T radio).
Alinco DJ-MD5TGP |
With OEM antenna |
However, the DJ-500T and DJ-MD5T do NOT share the same programming cables, interface or software. They are completely independent of one another and are not program-compatible. This is obviously due to the nature of their TX/RX formats and imbedded systems, analog-only versus analog/digital DMR. As such, they also cannot be cloned directly from one to the other. Nor can their programming files or codeplugs be shared or opened in one another's software utilities. And, for any Linux OS operators, there is (to date) no support for either unit using CHIRP software to clone or program. I'm count myself among those Linux operators.
Custom start screen |
In the meantime, thank you for visiting my website. I hope you'll check back again.
73,
Patrick, K3NYJ
Disclaimer: All content presented on this site are subjective and solely representative of personal ownership experience and individual understanding of said products and related subject matter described herein. Any and all representations, descriptions and commentaries posted herein are offered from opinion and should not be regarded as expert affidavit or testimony, or as a manufacturer's statement in any way. Please consult with product manufacturers and their approved sources for complete details, specifications and applicable warranties of all products described herein. All photos presented herein are property of this site's moderator and are not public domain.