CHA MPAS Lite: A proper quick-deployment field antenna

Chameleon Antenna recently sent me a prototype of their latest antenna: the CHA MPAS Lite.

The MPAS Lite is a compact version of their MPAS 2.0 modular antenna system and designed to be even more portable.

Chameleon Antenna is a specialist antenna manufacturer that makes military-grade, field portable antennas that are low-profile and stealthy. Chameleon products are 100% made in the USA and their customers range from amateur radio operators to the armed forces.

Their antennas are not cheap, but they are a prime example when we talk about “you pay for what you get.” In all of my years of evaluating radio products, I’ve never seen better quality field antennas–they’re absolutely top-shelf.

Zeta

I’m currently in my hometown doing a little caregiving for my parents. I’d only planned to be here for a couple of days, but when I saw that the remnants of Hurricane Zeta would pass directly over us with tropical storm force winds and rain, I stuck around to help the folks out.

Zeta struck quite a blow, in fact. No injuries reported, but over 23,000 of us have been without power for over 34+ hours in Catawba county. With saturated grounds, the winds toppled a lot of trees and damaged power lines.

Yesterday, I wanted to take advantage of the power outage and get on the air. I couldn’t really do a POTA activation because I needed to manage things here at my parents’ house. Plus, why not profit from the grid being down and bathe in a noise-free RF space–?

I decided to set it up in their front yard.

CHA MPAS Lite

I had never deployed the MPAS Lite before, so I did a quick scan through the owner’s manual. Although the MPAS Lite (like the MPAS 2.0) can be configured a number of ways, I deployed it as a simple vertical antenna.

Assembly was simple:

  1. Insert the stainless steel spike in the ground,
  2. Attach the counterpoise wire (I unraveled about 25′) to the spike
  3. Screw on the CHA Micro-Hybrid
  4. Screw the 17′ telescoping whip onto the Hybrid-Micro
  5. Extend the whip antenna fully
  6. Connect the supplied coax (with in-line choke) to the Hybrid-Micro
  7. Connect the antenna to the rig

Although I had the Icom IC-705 packed, I wanted to keep things simple by using the Elecraft KX2 I’d also packed since it has a built-in ATU.

Important: the CHA MPAS Lite requires an ATU to get a good match across the bands.

I wasn’t in the mood to ragchew yesterday, but I thought it might be fun to see how easily I could tune the MPAS Lite from 80 meters up.

I checked the Parks On The Air spots page and saw NK8O activating a park in Minnesota in CW:

He was working a bit of a pile-up, but after three calls, he worked me and reported a 559 signal report. Not bad at 5 watts!

I then moved to 40, 18, and 20 meter and called CQ a couple times to see if the Reverse Beacon Network (RBN) could spot me. I like using the RBN to give me a “quick and dirty” signal report. I was very pleased with the bands I tested:

Those dB numbers are quite good for an op running 5 watts into a vertical compromised antenna.

The KX2 very effortlessly got near 1:1 matches on every band I tested.

Of course, after working a few stations in CW and SSB, I tuned to the broadcast bands and enjoyed a little RFI-free SWLing. Noting 13dka’s recent article, I’m thinking on the coast, the MPAS Lite will make for a superb amateur radio and SWLing antenna.

Durability

Although the remnants of Zeta had effectively passed through the area three hours prior, it was still very blustery outside. I was concerned gusts might even be a little too strong for the 17′ whip, but I was wrong. The whip handled the wind gusts with ease and the spike held it in place with no problem.

One of the things I have to watch with my Wolf River Coils TIA vertical is the fact it’s prone to fall in windy conditions and many ops have noted that this can permanently damage the telescoping whip (the weak point in that system).

I’m pretty certain this wouldn’t happen with the Chameleon 17′ whip–it feels very substantial and solid.

Ready to hit the field with the CHA MPAS Lite!

I’m a huge fan of wire antennas because I believe they give me the most “bang-for-buck” in the field, but they’re not always practical to deploy. I like having a good self-supporting antenna option in my tool belt when there are no trees around or when parks don’t allow me to hang antennas in their trees.

I’ve got a park in mind that will make for a good test of the CHA MPAS Lite: it’s a remote game land with no real parking option. I’ll have to activate it on the roadside–an ideal application for the MPAS Lite.

Click here to check out the CHA MPAS Lite.

FCC’s AM digital order did not include DRM

This news item expands on our previous post.

(Source: Radio World)

No Luck for DRM in the AM Digital Order

Digital Radio Mondiale was hoping that the Federal Communications Commission would consider allowing its technology as an all-digital option for AM stations in the United States, along with HD Radio. But the FCC disappointed it.

[…]“Many commenters agree that all-digital AM broadcasting should be allowed but object to HD Radio as the sole authorized transmission technology,” it wrote.

“Specifically, commenters urge us to consider the Digital Radio Mondiale all-digital transmission technology on the grounds that it: (1) offers equal or better sound quality to HD Radio at lower bitrates; (2) can transmit metadata as well as emergency alerts, multicast subchannels, and a data channel; (3) is energy- and spectrum-efficient; (4) uses a superior audio codec; (5) is not susceptible to interference; (6) is not owned or controlled by a single company; and (7) has been used successfully in other countries and is the approved technology for shortwave broadcasting in the United States.”

But the FCC said the request was “beyond the scope of this proceeding.”

It said it needed to move expeditiously on this all-digital proposal; and that if parties believe that it should re-evaluate HD Radio and consider alternative technologies, “we would need to evaluate a fully developed proposal including data such as laboratory and field testing, similar to the petition for rulemaking that formed the basis of this proceeding.”[]

Click here to read the full article at Radio World.

Rob Sherwood on Ham Talk Live tonight (October 29, 2020)

I just discovered Rob Sherwood (NC0B) will be on Ham Talk Live tonight. Rob always has fascinating comments about receiver performance, so this should be a great episode.

Here are details:

Rob Sherwood, NC0B from Sherwood Engineering returns to Ham Talk Live! Thursday night to talk about the performance of several radios since his last visit on this show and will take your questions live about his analysis.

Tune into Ham Talk Live! Thursday night at 9 pm EDT (Friday 0100Z) by going to hamtalklive.com. When the audio player indicates LIVE, just hit the play button!

If you miss the show live, you can listen on demand anytime also at hamtalklive.com;

or a podcast version is on nearly all podcast sites a few minutes after the live show is over. Some sites include Apple Podcasts, Stitcher, Google Play, SoundCloud, and iHeart Podcasts; and it’s also available on YouTube. A replay is also broadcast on WTWW 5085 AM on Saturday nights at approximately 3:30 pm Eastern.

Be sure to CALL in with your questions and comments by calling 859-982-7373 live during the call-in segment of the show. You can also tweet your questions before or during the show to @HamTalkLive.

Thursdays at 9 pm Eastern (Friday 0100Z Mar-Nov / 0200Z Nov-Mar) Live call-in talk radio show about Amateur (Ham) Radio – Hosted by Neil Rapp, WB9VPG Call 859-982-7373 to join the conversation!

A Universal HamRadio Remote HTML5 interface

Many thanks to SWLing Post contributor, Ferrie, who writes:

[Universal_HamRadio_Remote_HTML5] is an implementation of python server and html5 function to get a web-browsable interface to use your TRX in RX and TX.

You can use basis and some advanced functions of your radio. You use your speaker and microphone of your computer to communication. This project is more oriented for voice or CW.

https://github.com/F4HTB/Universal_HamRadio_Remote_HTML5

Greetings from the Netherlands,

Ferrie

Thank you for the tip, Ferrie! What a fantastic project. I love the open source aspects and, especially, how accessible it is via the use of the Raspberry Pi. An HTML5 interface would mean near universal accessibility via any internet-connected device. I hope this project continues to develop.

Click here to view the Project’s GitHub page.

Matt’s mediumwave audio comparison of the C.Crane Radio 2E and the Potomac Instruments FIM-41

Many thanks to SWLing Post contributor, Matt Blaze, who writes:

I did another head-to-head receiver comparison, this time of two MW BCB AM portables: The C.Crane Radio 2/e vs. the Potomac Instruments FIM-41 field intensity meter.

The latter is not intended as a receiver, but rather a test instrument, but it turns out to be the among most sensitive MW receivers I’ve ever used. So I thought it would be interesting to compare its performance with that of a well-regarded modern portable.

Audio Comparison:

Our two contenders with comparable portable radios: the GE Super Radio, Panasonic RF-2200, and Sony ICF-EX5MK2.

Another brilliant audio comparison, Matt! Thank you so much for taking the time to put this together! I actually believe audio comparisons, as you’ve set them up, are a fantastic way of sharing A/B comparisons.

Click here to check out all of Matt’s receiver audio comparisons.

FCC Authorizes AM radio stations to operate using all-digital broadcast signals

Many thanks to SWLing Post contributor, Paul Evans, Mike S, and a number of others who have contacted me regarding the FCC’s Authorization of All-Digital AM Radio. Below, you’ll find the FCC press release:


For Immediate Release

FCC AUTHORIZES ALL-DIGITAL AM RADIO

Action Will Improve Listening Experience and Provide Consumers with Enhanced
Services

WASHINGTON, October 27, 2020—The Federal Communications Commission today
adopted a Report and Order that allows AM radio stations to operate using all-digital broadcast
signals. AM broadcasters will be able to voluntarily choose whether and when to convert to
all-digital operation from their current analog or hybrid analog/digital signals.

All-digital broadcasting offers AM listeners significantly improved audio quality and more
reliable coverage over a wider listenable area than analog or hybrid digital broadcasts. It also
allows broadcasters to provide additional services to the public, such as song title and artist
information. These enhancements will enable AM broadcasters to better compete in today’s
media marketplace.

Today’s Order establishes technical rules to protect existing AM broadcast stations from
interference. In addition, stations converting to all-digital operation will be required to notify
the Commission and the public 30 days in advance of their transition. These stations must
provide at least one free over-the-air digital programming stream that is comparable to or better in audio quality than a standard analog broadcast. They also must continue to participate in the Emergency Alert System. The Order envisions that AM broadcasters will decide whether to convert to all-digital operation based on the conditions in their respective markets.

Action by the Commission October 27, 2020 by Report and Order (FCC 20-154). Chairman
Pai, Commissioners O’Rielly, Carr, Rosenworcel, and Starks approving. Chairman Pai, and
Commissioner Rosenworcel issuing separate statements.

MB Docket Nos. 19-311, 13-249

###


Also, check out articles at Radio Insight and Radio World regarding this authorization. 

FTIOM & UBMP, November 1-7


From the Isle of Music, November 1-7:

Part 2 of 2 parts: Special guest Zenovio Hernández Pavón, a prolific researcher, author, historian and radio producer in Holguín, helps us explore Holguín’s important and distinctive musical culture with several examples.
The broadcasts take place:
1. For Eastern Europe but audible well beyond the target area in most of the Eastern Hemisphere (including parts of East Asia and Oceania) with 100Kw, Sunday 1500-1600 UTC on SpaceLine, 9400 KHz, from Sofia, Bulgaria (1800-1900 MSK)
2. For the Americas and parts of Europe, Tuesday 0100-0200 (NEW UTC) on WBCQ, 7490 kHz from Monticello, ME, USA (Monday 8-9PM EDT in the US).
3 & 4. For Europe and sometimes beyond, Tuesday 1900-2000 UTC and Saturday 1300-1400 (NEW UTC) on Channel 292, 6070 kHz from Rohrbach, Germany.
If you don’t have a shortwave radio or are out of range, you can listen live to uplinks from various websdrs in Europe.
Our Facebook page is https://www.facebook.com/fromtheisleofmusic/
Our V-Kontakte page is https://vk.com/fromtheisleofmusic
Our Patreon page is https://www.patreon.com/tilford

Uncle Bill’s Melting Pot, November 1, 3 and 7:
Party like it’s 1920! In episode 189, we celebrate the first commercially-licensed AM radio broadcast on November 2, 1920 on KDKA. We will play recordings that were popular in 1920, and some special surprise guests will recall their early memories with their radios.
The transmissions take place:
1.Sunday 2300-0000 (6:00PM -7:00PM EDT) on WBCQ The Planet 7490 kHz from the US to the Americas and parts of Europe
2. Tuesday 2000-2100 UTC on Channel 292, 6070 kHz from Rohrbach, Germany for Europe.
3. Saturday 0800-0900 UTC on Channel 292, 9670 kHz from Rohrbach, Germany for Europe.
Our Facebook page is https://www.facebook.com/UncleBillsMeltingPot/
Our V-Kontakte page is https://vk.com/fromtheisleofmusic
Our Patreon page is https://www.patreon.com/tilford