Cleartone CM 7200. 4m AM/FM radio.

Recently I got two of these radios from Atrur EI7GMB, I will do a review over the next few weeks.
Artur will be sending me some specs and I will add them to my review as well.

An introduction to the LFA-Q for 70Mhz.

A 4 element low-noise, High Gain LFA-Q Quad Style Yagi for 69.9-70.5MHz

MASSIVE Gain for a very compact boom size

Performance

Gain: 10.62dBi @ 70.2MHz

F/B: 25.34dB @ 70.2MHz

Peak Gain: 10.71dBi

Gain 10m above ground: 16.38dBi

Peak F/B: 25.88dB

Power Rating: 5kw+

SWR: Below 1.4.1 from 69.9MHz to 70.5MHz

Boom Length: 2.6m

Vertical Stacking: 3.75m

The LFA-Q (Loop Fed Array Quad) Low-Noise Yagi takes a lot of the good points from the LFA Yagi and adds some more. the LFA-Q is a quad with a difference. Rather than placing symmetrical square or triangular shaped loops in a Yagi configuration, the LFA-Q uses the LFA Yagi style loops to produce high levels of side suppression, the difference being every element is a loop rather than just the driven element.

The shape of the loops have been formed (compressed) until the short side sections are exactly 180 degrees out of phase with one another and therefore, a cancellation effect occurs in much the same way as balanced line feeder works. This means high levels of suppression to both the sides and the rear of the antenna can be achieved.

So if the LFA Yagi does this so well, why do something different with loops forming all elements? The primary reason is gain per meter of boom on a full wave element antenna can be much greater than on a half wave element antenna such as the LFA. This results in compact, high gain antennas which are constructed to stand some serious weather conditions!

Noble Radio NR-6N4. New 4m and 6m dual band radio.

Noble Radio NR-6N4 is a new 4 m and 6 m dual band radio. It covers 50.0 MHz to 52.0 MHz and 69.9 MHz to 70.5 Mhz Modulation is CW and SSB. Power is up to 20 W PEP. Price range is around $800(us). The news release does not say anything about availability date.

The key, but preliminary technical specification, are listed below but are also subject to change:

Receiver:

Down converting design

Dual Conversion: 1st IF: 10.7 MHz 2nd IF: 25 kHz

Sideband elimination using phasing techniques with digitally generated Quadrature carriers and Image

Reject mixers preceded by 15 kHz crystal roofing filters

Ultimate receiver bandwidth set by adjustable SCAF filters (two 8th order filters used. One for High Cut and one for Low cut)

Sensitivity: MDS = -130 dBm

Dynamic Range Figures: blocking: 110 dB, IMD (3rd Order): 95 dB

Selectivity: 500 Hz to 4 kHz adjustable with the SCAF filters. Ultimate attenuation of filters are 55 dB or better.

Transmitter:

Power: 20 W PEP

SCAF Filters can be used to tailor SSB Transmit audio.

General:

Synthesizer: DDS/PLL synthesizer with 10 Hz minimum step size. Tuning rate is variable depending on the Tuning Knob speed (Variable Speed Tuning - VST)

The low level 10.7 MHz IF signal is also brought out to a rear connector so that it may be used for pan adapter or SDR applications.

Memories: 

10 Memories per band

Supply voltage: 11.5 V to 14 V DC, approximately 3.6 A at full output power.

Dimensions: 203 mm (W) x 305 mm (D), including knob and heat sink, 95 mm (H), including feet

Weight: Approximately 1.8 kg