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Author Topic: CommRadio CTX-10. New 10 watt HF SDR/QRP Radio available early 2017 no price...  (Read 4064 times)
W4KYR
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Posts: 1613




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« on: October 17, 2016, 03:27:32 AM »



CommRadio CTX-10. New 10 watt HF SDR/QRP Radio available early 2017 no price...

I saw this on qrznow, did a search on eham and noticed no one has mentioned this yet. This looks interesting, not only from an SDR standpoint, but also from an QRP radio standpoint as well. The specs seem pretty good too. I believe they said the radio will be produced here in the United States.

What are your thoughts?

Any ideas what the price will be?


http://qrznow.com/the-new-commradio-ctx-10-qrp/


"CommRadio CTX-10

The CommRadio CTX-10 blends high performance, internal SDR technology, high efficiency circuit design, compact size and simple operation. This multi-mission QRP radio is ideal for field use and emergency operations. Transmitter covers 160-10 meter amateur bands with output power adjustable from 1 to 10 watts. The new design uses ruggedized land mobile power amps in push-pull. Every aspect of the radio design is optimized for low power consumption.

The efficient and sharp OLED display is readable in low or high lighting conditions. The radio has three built-in #18650 3.7V 2600 mAh Li-ion batteries providing 28.8 watt-hours of operation. A built-in intelligent charger provides seamless power management.

The general coverage receiver section uses multiple preselectors for optimized reception from 200 kHz to 30 MHz. An integrated CW reader and antenna tuner enhances portability. The premium tuning knob optical encoder is rated at a million revolutions.

Entire enclosure is aluminum with metal knobs and front panel. External connections are through-hole mounted for durability. Includes USB cable, DC power cord and manual. DC power requirements: receive 1.5 W, transmit 20 W. This quality device is robustly built in Colorado, U.S.A.

CTX-10 Specifications

Transmit Bands: 160-10 meters CW/SSB
RF Power Output: 1 to 10 Watts
Receive Coverage: 200 kHz – 30 MHz
Receive Modes: USB/LSB/CW/AM/FM
Receive Bandwidths: AM 5/7.5/15 kHz
SSB 1.8/2.2/2.6 kHz
CW 0.5/1/1.8/2.2/2.6 kHz
NBFM 15/25 kHz
Receive Auto Bandwidths:AM 5/7.5/15 kHz
SSB 1.8/2.6 kHz
CW 1/0.5 kHz
Tuning Resolution: 1MHz, 100, 10, 1 kHz, 100, 10 Hz.
HF Sensitivity MDS: -130 dBm (500 Hz BW)
Audio System: 8 Ohm 0.8 watts to
1.2×1.6″ Internal Speaker
or External Speaker jack
AGC Attack Time: Slow/Medium/Fast
Antenna Input: BNC 50 Ohm
Display Types: OLED 64×128
DC Power Jack: 10-20 VDC 2.5 x 5mm
DC Power: 2.0 Amps @12VDC
Batteries: 3 #18650 Li-ion 2.6 Ah
USB Mini-B 2.0 Jack: Charges battery while
operating radio.
I-Q data & radio control
Windows spectrum scope
ESD Protection: ESD diodes at antenna, power jacks,
USB port, keys and knobs.
Physical: 5.7 x 1.6 x 6.7″ 2.2 lbs."



"This device has not been approved by the F.C.C. This device may not be offered for sale or lease or be sold or leased until approval of the F.C.C. has been obtained. The information shown is preliminary and may be subject to change without notice or obligation. Availability is estimated for early 2017."


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The internet and cellphone networks are great until they go down, what then? Find out here. 
https://www.eham.net/ehamforum/smf/index.php/topic,111948.0.html

Using Windows 98 For Packet...
N0SA
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Posts: 56




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« Reply #1 on: October 17, 2016, 06:09:14 AM »

I had a CR-1A and if this is like the CR-1A it will most likely have some issues.
The CR-1A is a fun little radio but it lacks quite a few things. My main complaint was a bad AGC system.
They make a great radio physically but operationally it was low on the scale.
If the CTX-10 follows along these lines I think it will not be a great radio.
If it gets compared to a KX2 I think it may fall well short.
Time will tell and hopefully they will do a better job on this than they did on the CR-1A.
In my opinion they get high marks on construction but lower marks on operating parameters.
Just my two cents worth and I really hope they step up their game with this project.
It also looks to have way too few buttons to be easy to operate. I am not for a ton of buttons but
on a Ham transceiver there are a lot of things that can need adjusting on the fly.
If they are buried in Menus that makes it difficult to do.
I wish them the best of luck and it is always nice to see new products. Especially those made in the USA.
Larry
n0sa
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N3EVL
Member

Posts: 80




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« Reply #2 on: October 17, 2016, 09:15:23 AM »

What SDR architecture is being used in this radio?  I didn't see any mention in the specs - is it a DDC/DUC or QSD/QSE radio?

Pete, N3EVL
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W4KYR
Member

Posts: 1613




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« Reply #3 on: October 17, 2016, 11:58:41 AM »

What SDR architecture is being used in this radio?  I didn't see any mention in the specs - is it a DDC/DUC or QSD/QSE radio?

Pete, N3EVL


All it says "internal SDR technology" . Maybe more info in the near future.
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The internet and cellphone networks are great until they go down, what then? Find out here. 
https://www.eham.net/ehamforum/smf/index.php/topic,111948.0.html

Using Windows 98 For Packet...
KF7SJF
Member

Posts: 1




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« Reply #4 on: December 01, 2017, 05:28:19 AM »

http://www.commradio.com/product-information-ctx-10/

Offering started today at just under $1k.

I helped a longtime friend with his design... will answer any questions!

73!  Wink Cheesy

CTX-10 Amateur HF Transceiver

Receiver & Transmitter Tuning Resolution (cursor control): 1 MHz, 100 -10 - 1 kHz, 100  - 10 Hz.

Transmitter: 80m - 10m QRP and 10 W Push-Pull Rugged PA.

    Modes: CW, USB, LSB, Upper Sideband - data.
    Nine (9) bands: 80-60-40-30-20-17-15-12-10 meters, with 5 switched low pass filters with > 50 dB harmonic suppression.
    Precision I-Q modulator for SSB and SSB-data provides > 55 dB carrier and opposite-sideband suppression on all bands, all frequencies.
    RF output selectable at 5W and 10W.
    Keyer input jack (3.5mm) for paddles.
    Audio input/output (6-pin DIN) analog input/output to interface with sound card (data-modes).
    Microphone input with limiting pre-amplifier (with built in compression and noise gate). Microphone not supplied.

Automatic Antenna Tuner. Relay controlled (6-switched series inductors and 8-switched shunt capacitors) with an automatic tuning algorithm with memory.

Receiver Tuning Range.

    General Coverage 150 KHz - 30.0 MHz.
    Pre-Selectors:

        150 -    540 kHz         Longwave –see Hardware limitations below.
        540 -  1710 kHz         AM-Broadcast.
        1.7 -     4.0 MHz         Amateur    160m – 80m
        4.0 -     7.5 MHz         Amateur      60m – 40m
        7.5 -   14.5 MHz         Amateur      30m – 20m
        14.5 - 21.0 MHz         Amateur      17m
        21.0 - 30.0 MHz         Amateur      15m – 12m – 10m

Receiver Architecture: 

    Tuner: Dual conversion, low –IF with 3 stages of digital attenuation (similar to pre-amp and IF-amplifier control).
    Digital I-Q sampling, 32-bit DSP driving a digital audio CODEC.
    DSP demodulation algorithm modes: SSB, CW, DSB-AM.
    Manual or automatic Mode selection (based on tuned frequency).
    Manual or automatic Channel filter selections: User selectable, fixed bandwidth (DSP).
    Automatic -Filter Width select with override (manual selection).
    International Broadcasting: manual or auto-selection: 5 kHz steps.

Receiver Performance (80m - 10m amateur bands)

    Sensitivity: < -110 dBm (2.6 kHz SSB filter) with      10 dB S/N.
    MDS (minimum discernible signal) CW:       nominally -135 dBm in 500 Hz Bandwidth.

Receiver Audio System - Digital CODEC (digital audio from DSP)

    Speaker Driver: 0.8 W into 8 Ohm load.
    Headset Driver: 40 mW into 16 Ohms. (3.5 mm stereo jack).
    Internal 30 x 40 mm oval, Mylar-cone speaker.
    External monaural speaker jack (3.5 mm stereo jack - back panel).

Antenna Input 50 Ohm – BNC (female)

Display

    1.5" diagonal - 64 x 128 OLED Display with EMI-filtered lens.
    Readable outdoors (not in direct sunlight) and manually dimmable.

Power Supply Requirements. (External-provided by user)

    30 W minimum wall transformer. 12-18VDC typical. Accepts any voltage 5V – 20VDC.
    Power Jack: 2.5 mm diameter-center pin (+) x  5 mm diameter barrel).

Internal Rechargeable L-Ion Batteries: Three (3) Internal Lithium-Ion rechargeable batteries in series.

    Automatically charges the optional internal batteries with the radio powered ON or OFF.

Power Consumption:

    Receive:  2.5 Watts Typical
    Transmit: 20 Watts Typical (10 RF output. Includes all circuitry and TX modulator RF PA’s)

USB Mini-B 2.0 Jack (Not Powered)

    Software updates via 'Dropbox' with automated email notifications.
    I-Q data and radio controls via USB port
    CommRadio supplied basic 200 kHz Spectrum-Scope PC GUI (Graphical User Interface)

Mechanical:

    Overall Size: 5.61” W x 1.55” H x 6.0” D (not including knobs, jacks, feet).
    Weight: 2 lb. – 0 oz.
    Knobs: Machined Aluminum – Black Anodized.
    Front Panel and Enclosure: Die-Cast Magnesium Alloy. Finish Satin-black paint.

ESD Protection:  ESD Diodes on: Antenna port(s), Power Jacks, USB Port, Keys, and Knobs.

Hardware Design Limitations:

    Receiver: LW (150 kHz - 530 kHz): The tuner is programmed to provide tuning to 150 kHz and a pre-selector is provided.  The sampling IF and switching power supplies are also in this range and signals from other bands can be heard. Performance is not guaranteed in this range and is provided for experimental purposes.
    Transmitter: Not available on 160m and 6m. FM not available.

Regulatory Compliance: FCC and Industry Canada. North American Sales Only.
Origin & Warranty: Designed and Manufactured in USA.Limited 1 year warranty: parts, labor, workmanship.
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N2DTS
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Posts: 748




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« Reply #5 on: December 01, 2017, 10:50:00 AM »

Too expensive and no AM tx, not interested.
The KX2 seems better...
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W1JTO
Member

Posts: 78




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« Reply #6 on: December 01, 2017, 11:28:29 AM »

Can someone explain why at "just under 1k" why anyone would pick this over a icom 7300 ?

at 200.00 maybe ... but why ? portability ?,  internal batteries ?,
« Last Edit: December 01, 2017, 11:34:13 AM by W1JTO » Logged
VA3VF
Member

Posts: 944




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« Reply #7 on: December 01, 2017, 11:48:12 AM »

Can someone explain why at "just under 1k" why anyone would pick this over a icom 7300 ?

at 200.00 maybe ... but why ? portability ?,  internal batteries ?,

Some people want to do QRP with a QRP rig. Lowering the power on their other HF rig will not do for them.

Compared to some other offers, and not taking into account how it performs, the price is not absurd. The absurdity barrier was broken a while ago. Grin Grin
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W1JTO
Member

Posts: 78




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« Reply #8 on: December 01, 2017, 06:12:27 PM »

Can someone explain why at "just under 1k" why anyone would pick this over a icom 7300 ?

at 200.00 maybe ... but why ? portability ?,  internal batteries ?,

Some people want to do QRP with a QRP rig. Lowering the power on their other HF rig will not do for them.

Compared to some other offers, and not taking into account how it performs, the price is not absurd. The absurdity barrier was broken a while ago. Grin Grin


Ok...  but the Elad and others seem like a whole lot more real...  This looks targeted at people who want it for a backpack or the bugout bag set

I do really like the enclosure ... very slick... display not so much
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VA3VF
Member

Posts: 944




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« Reply #9 on: December 01, 2017, 06:21:56 PM »

Can someone explain why at "just under 1k" why anyone would pick this over a icom 7300 ?

at 200.00 maybe ... but why ? portability ?,  internal batteries ?,

Some people want to do QRP with a QRP rig. Lowering the power on their other HF rig will not do for them.

Compared to some other offers, and not taking into account how it performs, the price is not absurd. The absurdity barrier was broken a while ago. Grin Grin


Ok...  but the Elad and others seem like a whole lot more real...  This looks targeted at people who want it for a backpack or the bugout bag set

I do really like the enclosure ... very slick... display not so much

The backpack 'market' may indeed be a prime target. Not only because of the rugged case, but the internal battery option.

I cannot afford that kind of money for a QRP radio right now, but I think I would still go with an Elecraft, as ugly as they look.  Grin
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N1EU
Member

Posts: 129




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« Reply #10 on: December 08, 2017, 04:26:43 AM »

It looks like the Elad FDM-DUO (which came out over 3 years ago) has it all over the CTX-10, starting with direct sampling architecture in the FDM-DUO.

Barry N1EU
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