Transmițător CW JUMA TX-500, 60W – 500KHz

Juma TX-500 is a high-performance 60W CW transmitter for the 630m band (500KHz). This CW CMCD transmitter is tested & calibrated, small-sized with digital control. Works as beacon, high dynamic Rx up-converter included, for a 80m receiver. Firmware programmed: v.112. Designed by the JUMA® team (OH2NLT & OH7SV). Manufactured, assembled, tested & calibrated by us @ roWaves Technologies, in Sibiu, Romania. JUMA Radio Team (www.jumaradio.com)

✓ CE certified ( CE certificate can be sent upon request)
✓ 1 year warranty
✓ free technical & limited support via e-mail & WhatsApp
✓ how to use the TX-500 with a receiver or how to operate it ? See Download section

roWaves Technologies owns the legal rights to manufacture and market this transmitter.

Main features:

output power: 60W key down CW
adjustable gain: (MIN: 4W / LOW: 15W / HIGH: 35W / MAX.: 60W)
frequency range: 450 kHz…550 kHz (step 10 Hz, 1 Hz with Windows control software)
top quality keyer: speed range of 1…50 wpm (min. 0.1 wpm with serial control)
clickless CW keying shape: T/R switch with CW speed adaptive release delay
Rx preamplifier & Rx up-converter: from 500 kHz to 3.5 MHz
beacon mode: stand-alone
Windows software: for PC control (v.1.21)
supply voltage range: 12…15Vdc @ 5A
dimensions: approx. 18 x 12.4 x 6cm, weight ~ 1kg

Configurable features

RX preamplifier: (OFF, 10 dB, 20 dB)
RX converter: ON/OFF
sidetone frequency: ON/OFF
adjustable SWR protection: individual level for each power
keyer type: dot priority, lambic, straight and beacon mode
LCD: brightness and contrast adjustment
serial communication settings

Connectivity

power supply: nominal 14 VDC / 5A (Standard DC socket)
antenna: 50 ohms (BNC connector)
500 kHz or 3.5 MHz: 50 ohms (BNC connector)
paddle/straight key: (3.5 mm jack)
RS232 for firmware/beacon programming: 3.5 mm jack
external PTT in/out: 3.5 mm jack

Below you can find complete technical specifications, documentation (diagrams, measurements etc.).

Shipping safe with DHL. See the estimated shipping cost to your country HERE.

574,80 EUR (excl. TVA)

disponibil cu pre-comanda

Parameter	Symbol	Value	Units	Conditions / comments
Frequency range	Fop.	450...550	KHz
Standard RF power	Pnom	60	W	key down
Gain / power settings	Gstep	4 15 35 60	W	MIN LOW HIGH MAX
Operating modes	OPM	CW	-	CMCD (current mode class D)
Harmonic outputs	Ph	1f (carrier) 2f 3f 4f 5f 6f	0dB @ 90W -62.7dB @ 32uW -60.7dB @ 51uW -89.7dB @ 64nW -77.7dB @ 1uW -110.7dB @ 0.5nW	L I N K
Supply voltage range	Vdc range	12 ÷ 15	Vdc	voltage monitoring on LCD
Nominal voltage	Vdc	14	Vdc
Max. supply voltage	Vdc max.	15	Vdc	do not exceed this value!
Nominal current	Idc	5	Adc	@ 60W
FW version	FW	1.04		-current firmware installed
LCD		2 x 16	CH	displays: - output power / SWR - supply voltage - drain current - CW speed (WPM) - state (STBY, OPER, TX) - frequency with 5 digits e.g. 501.00 kHz
Mechanical dim.	L x W x H	180 x 124 x 60	mm	with case
Weight	g	1000	g	with case

TX-500 manual:
TX-500 block diagram:
Beacon programming instructions:
Windows control software quick guide:
Beacon operation:
Antenna application note:
Digital Control Module schematic, Part 1:
Digital Control Module schematic, Part 2:
RF Module / PA stage schematic, Part 1:
RF Module / PA stage schematic, Part 2:
Assembly image